<PAGE>
 
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549
                          
                            ------------------------


                                    FORM 8-A


               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934


                            CELL THERAPEUTICS, INC.
          -------------------------------------------------------------
             (Exact name of registrant as specified in its charter)



                 Washington                                  91-1533912
      ---------------------------------         -------------------------------
     (State of incorporation or                 (I.R.S. Employer Identification
     organization)                              

     201 Elliott Avenue West, Suite 400,
     Seattle, Washington                                98119
     ----------------------------------               --------
     (Address of principal executive offices)        (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:


     Title of each class            Name of each exchange on which
     to be so registered            each class is to be registered
     -------------------            ------------------------------

     Preferred Stock Purchase Rights          none

Securities to be registered pursuant to Section 12(g) of the Act:

                                     none
- -------------------------------------------------------------------------------
                                (Title of class)

<PAGE>
 
                                       2



Item 1.   Description of Registrants Securities to Be Registered.
- ------    ------------------------------------------------------ 

          On November 11, 1996, the Board of Directors of Cell Therapeutics,
Inc. (the "Company") declared a distribution of one Right for each outstanding
           -------
share of Common Stock, no par value (the "Company Common Stock"), to
                                          --------------------
stockholders of record at the close of business on November 21, 1996 and for
each share of Company Common Stock issued (including shares distributed from
Treasury) by the Company thereafter and prior to the Distribution Date. Each
Right entitles the registered holder, subject to the terms of the Rights
Agreement, to purchase from the Company one one-thousandth of a share (a "Unit")
                                                                          ----
of Series C Preferred Stock, no par value (the "Preferred Stock"), at a Purchase
                                                ---------------
Price of $50.00 per Unit, subject to adjustment. The Purchase Price is payable
in cash or by certified or bank check or money order payable to the order of the
Company. The description and terms of the Rights are set forth in a Rights
Agreement between the Company and Harris Trust Company of California as Rights
Agent (the "Rights Agreement").
            ----------------

          Initially, the Rights will attach to all certificates representing
shares of outstanding Company Common Stock, and no separate Rights Certificates
will be distributed.  The Rights will separate from the Company Common Stock and
the Distribution Date will occur upon the earlier of (i) 10 business days
following a public announcement (the date of such announcement being the "Stock
                                                                          -----
Acquisition Date") that a person or group of affiliated or associated persons
- ----------------                                                             
(other than the Company, any Subsidiary of the Company or any employee benefit
plan of the Company or such Subsidiary) (an "Acquiring Person") has acquired,
                                             ----------------                
obtained the right to acquire or otherwise obtained beneficial ownership of 15%
or more of the then outstanding shares of Company Common Stock, and (ii) 10
business days (or such later date as may be determined by action of the Board of
Directors prior to such time as any person becomes an Acquiring Person)
following the commencement of a tender offer or exchange offer that would result
in a person or group beneficially owning 15% or more of the then outstanding
shares of Company Common Stock. Until the Distribution Date, (i) the Rights will
be evidenced by Company Common Stock certificates and will be transferred with
and only with such Company Common Stock certificates, (ii) new Company Common
Stock certificates issued after November 21, 1996 (also including shares
distributed from Treasury) will contain a notation incorporating the Rights
Agreement by reference and (iii) the surrender for transfer of any certificates
representing outstanding Company Common Stock will also constitute the transfer
of the Rights associated with the Company Common Stock represented by such
certificates.

          The Rights are not exercisable until the Distribution Date and will
expire at the close of business on the tenth anniversary of the Rights Agreement
unless earlier redeemed by the Company as described below.

<PAGE>
 
                                       3

          As soon as practicable after the Distribution Date, Rights
Certificates will be mailed to holders of record of Company Common Stock as of
the close of business on the Distribution Date and, thereafter, the separate
Rights Certificates alone will represent the Rights.

          In the event that (i) the Company is the surviving corporation in a
merger with an Acquiring Person and shares of Company Common Stock shall remain
outstanding, (ii) a Person becomes an Acquiring Person, (iii) an Acquiring
Person engages in one or more "self-dealing" transactions as set forth in the
Rights Agreement, or (iv) during such time as there is an Acquiring Person, an
event occurs which results in such Acquiring Person's ownership interest being
increased by more than 1% by means of a reverse stock split or recapitalization)
(each such event being a "Section 11(a)(ii) Event"), then, in each such case,
                          -----------------------    ----                    
each holder of a Right will thereafter have the right to receive, upon exercise,
Units of Preferred Stock (or, in certain circumstances, Company Common Stock,
cash, property or other securities of the Company) having a value equal to two
times the exercise price of the Right.  The exercise price is the Purchase Price
multiplied by the number of Units of Preferred Stock issuable upon exercise of a
Right prior to the events described in this paragraph.  Notwithstanding any of
the foregoing, following the occurrence of any of the events set forth in this
paragraph, all Rights that are, or (under certain circumstances specified in the
Rights Agreement) were, beneficially owned by any Acquiring Person will be null
and void.

          In the event that, at any time following the Stock Acquisition Date,
(i) the Company is acquired in a merger or other business combination
transaction and the Company is not the surviving corporation (other than a
merger described in the preceding paragraph), (ii) any Person consolidates or
merges with the Company and all or part of the Company Common Stock is converted
or exchanged for securities, cash or property of any other Person or (iii) 50%
or more of the Company's assets or earning power is sold or transferred, each
holder of a Right (except Rights which previously have been voided as described
above) shall thereafter have the right to receive, upon exercise, common stock
of the Acquiring Person having a value equal to two times the exercise price of
the Right.

          The Purchase Price payable, and the number of Units of Preferred Stock
issuable, upon exercise of the Rights are subject to adjustment from time to
time to prevent dilution (i) in the event of a stock dividend on, or a
subdivision, combination or reclassification of, the Preferred Stock, (ii) if
holders of the Preferred Stock are granted certain rights or warrants to
subscribe for Preferred Stock or convertible securities at less than the current
market price of the Preferred Stock, or (iii) upon the distribution to the
holders of the Preferred Stock of evidences of indebtedness or assets (excluding
regular quarterly cash dividends) or of subscription rights or warrants (other
than those referred to above).

<PAGE>
 
                                       4

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price.  The Company is not required to issue fractional Units.  In lieu thereof,
an adjustment in cash may be made based on the market price of the Preferred
Stock prior to the date of exercise.

          At any time until ten business days following the Stock Acquisition
Date, a majority of the Continuing Directors may redeem the Rights in whole, but
not in part, at a price of $.001 per Right (the "Redemption Price"), payable, at
                                                 ----------------               
the election of such majority of the Continuing Directors, in cash or shares of
Company Common Stock.  Immediately upon the action of a majority of Continuing
Directors ordering the redemption of the Rights, the Rights will terminate and
the only right of the holders of Rights will be to receive the Redemption Price.

          The Board of Directors, at its option, may exchange each Right for (i)
one Unit of Preferred Stock or (ii) such number of Units of Preferred Stock as
will equal (x) the difference between the aggregate market price of the number
of Units of Preferred Stock to be received upon a Section 11(a)(ii) Event and
the Purchase Price divided by (y) the market price per Unit of Preferred Stock
upon the Section 11(a)(ii) Event.

          Until a Right is exercised, the holder thereof, as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive dividends.  While the distribution of the Rights will not
be taxable to stockholders or to the Company, stockholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Units of Preferred Stock (or other consideration).

          Any of the provisions of the Rights Agreement may be amended at any
time prior to the Distribution Date.  After the Distribution Date, the
provisions of the Rights Agreement may be amended in order to cure any
ambiguity, defect or inconsistency, to make changes which do not adversely
affect the interests of holders of Rights (excluding the interests of any
Acquiring Person), or to shorten or lengthen any time period under the Rights
Agreement; provided, however, that no amendment to adjust the time period
           --------  -------                                             
governing redemption shall be made at such time as the Rights are not
redeemable.  Supplements or amendments to the Rights Agreement may be made only
if approved by a majority of Continuing Directors.

          A total of 100,000 shares of Preferred Stock will be reserved for
issuance upon exercise of the Rights.  The Units of Preferred Stock that may be
acquired upon exercise of the Rights will be nonredeemable and subordinate to
any other shares of preferred stock that may be issued by the Company.

<PAGE>
 
                                       5

          Each Unit of Preferred Stock will have a minimum preferential
quarterly dividend rate of $1.00 per Unit but will, in any event, be entitled to
a dividend equal to the per share dividend declared on the Company Common Stock.

          In the event of liquidation, the holder of a Unit of Preferred Stock
will receive a preferred liquidation payment equal to the greater of per Unit
and the per share amount paid in respect of a share of Company Common Stock.

          Each Unit of Preferred Stock will have one vote, voting together with
the Company Common Stock.  The holders of Units of Preferred Stock, voting as a
separate class, shall be entitled to elect two directors if dividends on the
Preferred Stock are in arrears for six fiscal quarters.

          In the event of any merger, consolidation or other transaction in
which shares of Company Common Stock are exchanged, each Unit of Preferred Stock
will be entitled to receive the per share amount paid in respect of each share
of Company Common Stock.

          The rights of holders of the Preferred Stock to dividends, liquidation
and voting, and in the event of mergers and consolidations, are protected by
customary antidilution provisions.

          Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the economic value of one Unit of Preferred Stock that may be
acquired upon the exercise of each Right should approximate the economic value
of one share of Company Common Stock.

          The Rights may have certain anti-takeover effects. The Rights will
cause substantial dilution to a person or group that attempts to acquire the
Company on terms not approved by a majority of the Continuing Directors unless
the offer is conditioned on a substantial number of Rights being acquired.
However, the Rights should not interfere with any merger or other business
combination approved by a majority of the Continuing Directors because the
Rights may be redeemed by the Company at $.001 per Right at any time on or prior
to the tenth business day following the Stock Acquisition Date (subject to
extension by a majority of the Continuing Directors).  Thus, the Rights are
intended to encourage persons who may seek to acquire control of the Company to
initiate such an acquisition through negotiations with the Board of Directors.
However, the effect of the Rights may be to discourage a third party from making
a partial tender offer or otherwise attempting to obtain a substantial equity
position in the equity securities of, or seeking to obtain control of, the
Company.  To the extent any potential acquirors are deterred by the Rights, the
Rights may have the effect of preserving incumbent management in office.

<PAGE>
 
                                       6

          The Rights Agreement between the Company and the Rights Agent
specifying the terms of the Rights, which includes as Exhibit A the Form of
Rights Certificate, is attached hereto as Exhibit 4 and is incorporated herein
by reference.  The foregoing description of the Rights does not purport to be
complete and is qualified in its entirety by reference to such Exhibit 4.

Item 2.   Exhibits.
- ------    --------

          1.  Form of Rights Agreement, dated as of November 11, 1996, between
Cell Therapeutics, Inc. and Harris Trust Company of California which includes
the Form of Rights Certificate as Exhibit A, the Summary of Rights to Purchase
Preferred Stock as Exhibit B and the Form of Certificate of Designation for the
Preferred Stock as Exhibit C.  Pursuant to the Rights Agreement, the Rights
Certificates will not be mailed until after (i) 10 days following a public
announcement that a person or group of affiliated or associated persons has
acquired, or obtained the right to acquire, beneficial ownership of 15% or more
of the outstanding shares of Company Common Stock or (ii) 10 business days
following the commencement of, or the announcement of the intention to commence,
a tender offer that would result in a person or group beneficially owning 15% or
more of the then outstanding shares of Company Common Stock.

<PAGE>

                                   SIGNATURE


          Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.


                                 CELL THERAPEUTICS, INC.



                                 By  /s/ James A. Bianco, M.D.
                                    --------------------------------------
                                     James A. Bianco, M.D.
                                     President and Chief Executive Officer

Date:  November 11, 1996

<PAGE>
 
                                 EXHIBIT INDEX
                                 -------------


Exhibit                                                                  Page
   No.                            Description                             No.
- -------                           -----------                            ----

4         Form of Rights Agreement dated as of November 11, 1996, 
          between Cell Therapeutics, Inc. and Harris Trust Company 
          of California, which includes the Form of Rights Certificate 
          as Exhibit A, the Summary of Rights to Purchase Preferred 
          Stock as Exhibit B and the Form of Certificate of Designation 
          of the Preferred Stock as Exhibit C.





<PAGE>
 
                                                                       EXHIBIT 4
                            CELL THERAPEUTICS, INC.


                                      and


                       HARRIS TRUST COMPANY OF CALIFORNIA

                                  Rights Agent



                                        



                                Rights Agreement

                         Dated as of November 11, 1996



                                        

<PAGE>
 
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
 
                                                                                      PAGE
<S>                                                                                   <C>
 
SECTION 1.  Certain Definitions....................................................      1
 
SECTION 2.  Appointment of Rights Agent............................................      6
 
SECTION 3.  Issue of Rights Certificates...........................................      6
 
SECTION 4.  Form of Rights Certificates............................................      8
 
SECTION 5.  Countersignature and Registration......................................      9
 
SECTION 6.  Transfer, Split Up, Combination and Exchange of Rights Certificates;
                 Mutilated, Destroyed, Lost or Stolen Rights Certificates..........      9
 
SECTION 7.  Exercise of Rights; Purchase Price; Expiration Date of Rights..........     10
 
SECTION 8.  Cancellation and Destruction of Rights Certificates....................     12
 
SECTION 9.  Reservation and Availability of Capital Stock..........................     13
 
SECTION 10.  Preferred Stock Record Date...........................................     14
 
SECTION 11.  Adjustment of Purchase Price, Number and Kind of Shares or
                 Number of Rights..................................................     14
 
SECTION 12.  Certificate of Adjusted Purchase Price or Number of Shares............     24
 
SECTION 13.  Consolidation, Merger or Sale or Transfer of Assets or Earning
                 Power.............................................................     24
 
SECTION 14.  Fractional Rights and Fractional Shares...............................     28
 
SECTION 15.  Rights of Action......................................................     29
 
SECTION 16.  Agreement of Rights Holders...........................................     29
 
SECTION 17.  Rights Certificate Holder Not Deemed a Shareholder....................     30
 
SECTION
 18.  Concerning the Rights Agent...........................................     30
 
SECTION 19.  Merger or Consolidation or Change of Name of Rights Agent.............     31
 
</TABLE>


<PAGE>
 
                                      ii

<TABLE>

<S>                                                                                   <C>
SECTION 20.  Duties of Rights Agent................................................     31
 
SECTION 21.  Change of Rights Agent................................................     34
 
SECTION 22.  Issuance of New Rights Certificates...................................     35
 
SECTION 23.  Redemption and Termination............................................     35
 
SECTION 24.  Notice of Certain Events..............................................     36
 
SECTION 25.  Notices...............................................................     37
 
SECTION 26.  Supplements and Amendments............................................     38
 
SECTION 27.  Successors............................................................     38
 
SECTION 28.  Determinations and Actions by the Board of Directors, etc.............     38
 
SECTION 29.  Benefits of this Agreement............................................     39
 
SECTION 30.  Severability..........................................................     39
 
SECTION 31.  Governing Law.........................................................     40
 
SECTION 32.  Counterparts..........................................................     40
 
SECTION 33.  Descriptive Headings..................................................     40
 
SECTION 34.  Exchange..............................................................     40


                                   EXHIBITS

Exhibit A    Rights Certificate

Exhibit B    Summary of Rights to Purchase Preferred Stock

Exhibit C    Statement of Designation

</TABLE>



<PAGE>
 
                                RIGHTS AGREEMENT
                                ----------------


          RIGHTS AGREEMENT, dated as of November 11, 1996 (this "AGREEMENT"),
between Cell Therapeutics, Inc., a Washington corporation (the "COMPANY"), and
Harris Trust Company of California, a California corporation (the "RIGHTS
AGENT").

          WHEREAS, effective November 11, 1996 (the "RIGHTS DIVIDEND DECLARATION
DATE"), the Board of Directors of the Company authorized and declared a
distribution of one Right (each, a "RIGHT") for each share of Common Stock, no
par value, of the Company (the "COMPANY COMMON STOCK") outstanding at the Close
of Business (as defined below) on November 21, 1996 (the "RECORD DATE"), and has
authorized the issuance of one Right (as such number may hereinafter be adjusted
pursuant hereto) for each share of Company Common Stock issued between the
Record Date (whether originally issued or delivered from the Company's treasury)
and, except as otherwise provided in Section 22, the Distribution Date, each
Right initially representing the right to purchase upon the terms and subject to
the conditions hereinafter set forth one Unit (as defined below) of Series C
Preferred Stock (as defined below);

          WHEREAS, the Company desires to set forth certain terms and conditions
governing the Rights; and

          WHEREAS, the Company desires to appoint the Rights Agent to act as
rights agent hereunder, in accordance with the terms and conditions hereof;

          NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

          SECTION 1.  Certain Definitions.  For purposes
                      -------------------               
of this Agreement, the following terms have the meanings indicated:

          (a) "ACQUIRING PERSON" shall mean any Person who or which, alone or
together with all Affiliates and Associates of such Person, shall be the
Beneficial Owner of 15% or more of the shares of Company Common Stock then
outstanding, but shall not include (x) the Company, any Subsidiary of the
Company, any employee benefit plan maintained by the Company or any of its
Subsidiaries or any trustee or fiduciary with respect to such plan acting in
such capacity or (y) any such Person who has become and is such a Beneficial
Owner solely because (A) of a change in the aggregate number of shares of the
Company Common Stock since the last date on which such Person acquired
Beneficial Ownership of any shares of the Company Common Stock or (B) it
acquired such Beneficial Ownership in the good faith belief that such
acquisition would not (x) cause such Beneficial Ownership to exceed 15% of the
shares of the Company Common Stock then outstanding and such Person relied in
good faith in computing the percentage of its Beneficial Ownership on publicly
filed

<PAGE>
 
                                       2

reports or documents of the Company which are inaccurate or out-of-date or (y)
otherwise cause a Distribution Date or the adjustment provided for in Section
11(a)(ii) to occur.  Notwithstanding clause (y)(B) of the prior sentence, if any
Person that is not an Acquiring Person due to such clause (y)(B) does not reduce
its percentage of Beneficial Ownership of the Company Common Stock to 15% or
less by the Close of Business on the fifth Business Day after notice from the
Company (the date of notice being the first day) that such person's Beneficial
Ownership of the Company Common Stock so exceeds 15%, such Person shall at the
end of such five Business Day period, become an Acquiring Person (and such
clause (y)(B) shall no longer apply to such Person).  For purposes of this
definition, the determination whether any Person acted in "GOOD FAITH" shall be
conclusively determined by the Board of Directors of the Company, acting by a
vote of those directors of the Company whose approval would be required to
redeem the rights under Section 23.

          (b) "ADJUSTMENT SHARES" has the meaning set forth in Section
     11(a)(ii).

          (c) "ADJUSTMENT SPREAD" has the meaning set forth in Section
     34(a)(ii).

          (d) "AFFILIATE" and "ASSOCIATE" shall have the respective meanings
     ascribed to such terms in Rule 12b-2 of the Exchange Act Regulations as in
     effect on the date hereof.

          (e) A Person shall be deemed the "BENEFICIAL OWNER" of, and shall be
     deemed to "BENEFICIALLY OWN", and shall be deemed to have "BENEFICIAL
     OWNERSHIP" of, any securities:

               (i) of which such Person or any of such Person's Affiliates or
          Associates is considered to be a "beneficial owner" under Rule 13d-3
          of the Exchange Act Regulations as in effect on the date hereof;
          provided, however, that a Person shall not be deemed the "BENEFICIAL
          OWNER" of, or to "BENEFICIALLY OWN", or to have "BENEFICIAL OWNERSHIP"
          of, any securities under this subparagraph (i) as a result of an
          agreement, arrangement or understanding to vote such securities if
          such agreement, arrangement or understanding (A) arises solely from a
          revocable proxy given in response to a proxy or consent solicitation
          made pursuant to, and in accordance with, the applicable provisions of
          the Exchange Act and the Exchange Act Regulations, and (B) is not
          reportable by such Person on Schedule 13D under the Exchange Act (or
          any comparable or successor report);

               (ii) which are beneficially owned, directly or indirectly, by any
          other Person (or any Affiliate or Associate of such other Person) with
          which such Person (or any of such Person's Affiliates or Associates)
          has any

<PAGE>
 
                                       3

          agreement, arrangement or understanding (whether or not in writing),
          for the purpose of acquiring, holding, voting (except pursuant to a
          revocable proxy as described in the proviso to subparagraph (i) of
          this paragraph (e)) or disposing of such securities; or

               (iii)  which such Person or any of such Person's Affiliates or
          Associates, directly or indirectly, has the right to acquire (whether
          such right is exercisable immediately or only after the passage of
          time or upon the satisfaction of conditions) pursuant to any
          agreement, arrangement or understanding (whether or not in writing) or
          upon the exercise of conversion rights, exchange rights, rights,
          warrants or options, or otherwise;

     provided, however, that under this paragraph (e) a Person shall not be
     -----------------                                                     
     deemed the "BENEFICIAL OWNER" of, or to "BENEFICIALLY OWN", or to have
     "BENEFICIAL OWNERSHIP" of, (A) securities tendered pursuant to a tender or
     exchange offer made in accordance with Exchange Act Regulations by such
     Person or any of such Person's Affiliates or Associates until such tendered
     securities are accepted for purchase or exchange, (B) securities that may
     be issued upon exercise of Rights at any time prior to the occurrence of a
     Triggering Event, or (C) securities that may be issued upon exercise of
     Rights from and after the occurrence of a Triggering Event, which Rights
     were acquired by such Person or any of such Person's Affiliates or
     Associates prior to the Distribution Date or pursuant to Section 3(c) or
     Section 22 or pursuant to Section 11(i) in connection with an adjustment
     made with respect to any such Rights.

          (f) "BUSINESS DAY" shall mean any day other than a Saturday, Sunday or
     a day on which banking institutions in Seattle, Washington or California
     are authorized or obligated by law or executive order to close.

          (g) "CLOSE OF BUSINESS" on any given date shall mean 5:00 P.M.,
     Seattle time, on such date; provided, however, that if such date is not a
                                 -----------------                            
     Business Day it shall mean 5:00 P.M., Seattle time, on the next succeeding
     Business Day.

          (h) "COMMON STOCK" of any Person other than the Company shall mean the
     capital stock of such Person with the greatest voting power, or, if such
     Person shall have no capital stock, the equity securities or other equity
     interest having power to control or direct the management of such Person.

          (i) "COMPANY" has the meaning set forth in the preamble to this
     Agreement.

          (j) "COMPANY COMMON STOCK" has the meaning set forth in the recitals
     to this Agreement.

<PAGE>
 
                                       4

          (k) "CONTINUING DIRECTOR" shall mean a member of the Board of
     Directors of the Company who is not an Acquiring Person or an Affiliate or
     Associate of an Acquiring Person or a representative or nominee of an
     Acquiring Person or of any such Affiliate or Associate, and who either (i)
     was a member of the Board of Directors of the Company prior to the date
     hereof or (ii) subsequently became a member of the Board of Directors of
     the Company and whose election or nomination for election is approved or
     recommended by a vote of a majority of the Board of Directors of the
     Company, which majority includes a majority of the Continuing Directors
     then on the Board of Directors.

          (l) "CURRENT VALUE" has the meaning set forth in Section 11(a)(iii).

          (m) "DEPOSITARY AGENT" has the meaning set forth in Section 7(c).

          (n) "DISTRIBUTION DATE" has the meaning set forth in Section 3(a).

          (o) "EQUIVALENT PREFERRED STOCK" has the meaning set forth in Section
     11(b).

          (p) "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as
     amended.

          (q) "EXCHANGE ACT REGULATIONS" shall mean the General Rules and
     Regulations under the Exchange Act.

          (r) "EXPIRATION DATE" has the meaning set forth in Section 7(a).

          (s) "FINAL EXPIRATION DATE" has the meaning set forth in Section 7(a).

          (t) "PERSON" shall mean any individual, partnership, limited liability
     company, firm, corporation, association, trust, unincorporated organization
     or other entity, as well as any syndicate or group deemed to be a person
     under Section 14(d)(2) of the Exchange Act.

          (u) "PREFERRED STOCK" shall mean the Series C Preferred Stock, no par
     value, of the Company having the voting powers, designation, preferences
     and relative, participating, optional or other special rights and
     qualifications, limitations and restrictions described in the Certificate
     of Designations set forth as Exhibit C hereto.

          (v) "PREFERRED STOCK EQUIVALENTS" has the meaning specified in Section
     11(a)(iii).

<PAGE>
 
                                       5

          (w) "PRINCIPAL PARTY" has the meaning set forth in Section 13(b).

          (x) "PURCHASE PRICE" has the meaning set forth in Section 7(b).

          (y) "RECORD DATE" has the meaning set forth in the recitals to this
     Agreement.

          (z) "REDEMPTION PRICE" has the meaning set forth in Section 23(c).

          (aa) "REGISTERED COMMON STOCK" has the meaning set forth in
     Section 13(b)(ii).

          (bb) "REGISTRATION DATE" has the meaning set forth in Section 9(c).

          (cc) "REGISTRATION STATEMENT" has the meaning set forth in Section
     9(a).

          (dd) "RIGHT" has the meaning set forth in the recitals to this
     Agreement.

          (ee) "RIGHTS AGENT" has the meaning set forth in the preamble to this
     Agreement.

          (ff) "RIGHTS CERTIFICATE" has the meaning set forth in Section 3(a).

          (gg) "RIGHTS DIVIDEND DECLARATION DATE" has the meaning set forth in
     the recitals to this Agreement.

          (hh) "SECTION 11(A)(II) EVENT" shall mean any event described in
     Section 11(a)(ii)(A), (B) or (C).

          (ii) "SECTION 11(A)(III) TRIGGER DATE" has the meaning set forth in
     Section 11(a)(iii).

          (jj) "SECTION 13 EVENT" shall mean any event described in clause (x),
     (y) or (z) of Section 13(a) hereof.

          (kk) "SECTION 34(A)(I) EXCHANGE RATIO" has the meaning set forth in
     Section 34(a)(i).

          (ll) "SECTION 34(A)(II) EXCHANGE RATIO" has the meaning set forth in
     Section 34(a)(ii).

          (mm) "SECURITIES ACT" shall mean the Securities Act of 1933, as
     amended.

<PAGE>
 
                                       6

          (nn) "SPREAD" has the meaning set forth in Section 11(a)(iii).

          (oo) "STOCK ACQUISITION DATE" shall mean the first date of public
     announcement (including, without limitation, the filing of any report
     pursuant to Section 13(d) of the Exchange Act) by the Company or an
     Acquiring Person that an Acquiring Person has become such.

          (pp) "SUBSIDIARY" shall mean, with reference to any Person, any other
     Person of which an amount of voting securities or equity interests
     sufficient to elect at least a majority of the directors or equivalent
     governing body of such other Person is beneficially owned, directly or
     indirectly, by such Person, or otherwise controlled by such first-mentioned
     Person.

          (qq) "SUMMARY OF RIGHTS" has the meaning set forth in Section 3(b).

          (rr) "TRADING DAY" has the meaning set forth in Section 11(d)(i).

          (ss) "TRIGGERING EVENT" shall mean any Section 11(a)(ii) Event or any
     Section 13 Event.

          (tt) "UNIT" has the meaning set forth in Section 7(b).

          SECTION 2.  Appointment of Rights Agent.  The Company hereby appoints
                      ---------------------------                              
the Rights Agent to act as agent for the Company in accordance with the terms
and conditions hereof, and the Rights Agent hereby accepts such appointment.
With the consent of the Rights Agent, the Company may from time to time appoint
such Co-Rights Agents as it may deem necessary or desirable.

          SECTION 3.  Issue of Rights Certificates.  (a)  Until the earlier of
                      ----------------------------                            
(i) the Close of Business on the tenth day after the Stock Acquisition Date and
(ii) the Close of Business on the tenth Business Day (or such later date as may
be determined by action of the Company's Board of Directors prior to such time
as any Person becomes an Acquiring Person, provided that no such action may be
taken by the Board of Directors to determine a later date unless, at the time of
such action, there are then in office not less than two Continuing Directors and
such action is approved by a majority of the Continuing Directors then in office
and of which the Company will give the Rights Agent prompt written notice) after
the date that a tender or exchange offer by any Person (other than the Company,
any Subsidiary of the Company, any employee benefit plan maintained by the
Company or any of its Subsidiaries or any trustee or fiduciary with respect to
such plan acting in such capacity) is first published or sent or given within
the meaning of Rule 14d-4(a) of the Exchange Act Regulations or any successor
rule, if upon consummation thereof such Person would be the Beneficial Owner of
15% or more of the shares of Company Common Stock then outstanding

<PAGE>
 
                                       7

(the earlier of (i) and (ii) above being the "DISTRIBUTION DATE"), (x) the
Rights will be evidenced (subject to the provisions of paragraph (b) of this
Section 3) by the certificates for shares of Company Common Stock registered in
the names of the holders of shares of Company Common Stock as of and subsequent
to the Record Date (which certificates for shares of Company Common Stock shall
be deemed also to be certificates for Rights) and not by separate certificates,
and (y) the Rights will be transferable only in connection with the transfer of
the underlying shares of Company Common Stock (including a transfer to the
Company).  As soon as practicable after the Distribution Date, the Rights Agent
will send by first-class, insured, postage prepaid mail, to each record holder
of shares of Company Common Stock as of the Close of Business on the
Distribution Date, at the address of such holder shown on the records of the
Company, one or more rights certificates, in substantially the form of Exhibit A
hereto (the "RIGHTS CERTIFICATES"), evidencing one Right for each share of
Company Common Stock so held, subject to adjustment as provided herein.  In the
event that an adjustment in the number of Rights per share of Company Common
Stock has been made pursuant to Section 11(p), at the time of distribution of
the Rights Certificates, the Company may make the necessary and appropriate
rounding adjustments (in accordance with Section 14(a) hereof) so that Rights
Certificates representing only whole numbers of Rights are distributed and cash
is paid in lieu of any fractional Rights.  As of and after the Distribution
Date, the Rights will be evidenced solely by such Rights Certificates.

          (b) As promptly as practicable following the Record Date, the Company,
or the Rights Agent at the direction and expense of the Company, will send a
copy of a Summary of Rights to Purchase Preferred Stock, in a form which may be
appended to certificates that represent shares of Company Common Stock, in
substantially the form attached hereto as Exhibit B (the "SUMMARY OF RIGHTS"),
by first-class, postage prepaid mail, to each record holder of shares of Company
Common Stock as of the Close of Business on the Record Date, at the address of
such holder shown on the records of the Company.

          (c) Rights shall, without any further action, be issued in respect of
all shares of Company Common Stock which are issued (including any shares of
Company Common Stock held in treasury) after the Record Date but prior to the
earlier of the Distribution Date and the Expiration Date.  Certificates,
representing such shares of Company Common Stock, issued after the Record Date
shall bear the following legend:

          "This certificate also evidences and entitles the holder hereof to
     certain Rights as set forth in the Rights Agreement, dated as of November
     11, 1996 (the "RIGHTS AGREEMENT"), between Cell Therapeutics, Inc. (the
     "COMPANY") and Harris Trust Company of California (the "RIGHTS AGENT"), the
     terms of which are hereby incorporated herein by reference and a copy of
     which is on file at the principal office of the stock transfer
     administration office of the Rights Agent. Under certain circumstances, as
     set forth in the Rights Agreement, such Rights will be evidenced by
     separate certificates and will no longer be evidenced by


<PAGE>
 
                                       8

     this certificate.  The Company will mail to the holder of this certificate
     a copy of the Rights Agreement, as in effect on the date of mailing,
     without charge promptly after receipt of a written request therefor.  Under
     certain circumstances set forth in the Rights Agreement, Rights issued to,
     or held by, any Person who is, was or becomes an Acquiring Person or any
     Affiliate or Associate thereof (as such terms are defined in the Rights
     Agreement), whether currently held by or on behalf of such Person or by any
     subsequent holder, may become null and void."

          With respect to certificates representing shares of Company Common
Stock (whether or not such certificates include the foregoing legend or have
appended to them the Summary of Rights), until the earlier of the Distribution
Date and the Expiration Date, the Rights associated with the shares of Company
Common Stock represented by such certificates shall be evidenced by such
certificates alone and registered holders of the shares of Company Common Stock
shall also be the registered holders of the associated Rights, and the transfer
of any of such certificates shall also constitute the transfer of the Rights
associated with the shares of Company Common Stock represented by such
certificates.

          SECTION 4.  Form of Rights Certificates.  (a)  The Rights Certificates
                      ---------------------------                               
(and the forms of election to purchase, assignment and certificate to be printed
on the reverse thereof) shall each be substantially in the form set forth in
Exhibit A hereto and may have such marks of identification or designation and
such legends, summaries or endorsements printed thereon as the Company may deem
appropriate and as are not inconsistent with the provisions of this Agreement,
or as may be required to comply with any applicable law or any rule or
regulation thereunder or with any rule or regulation of any stock exchange on
which the Rights may from time to time be listed or to conform to usage.
Subject to the provisions of Section 11 and Section 22, the Rights Certificates,
whenever distributed, shall be dated as of the Record Date and on their face
shall entitle the holders thereof to purchase such number of Units of Preferred
Stock as shall be set forth therein at the price set forth therein, but the
amount and type of securities, cash or other assets that may be acquired upon
the exercise of each Right and the Purchase Price thereof shall be subject to
adjustment as provided herein.

          (b) Any Rights Certificate issued pursuant hereto that represents
Rights beneficially owned by:  (i) an Acquiring Person or any Associate or
Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) which becomes a transferee after the
Acquiring Person becomes such, or (iii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) which becomes a transferee prior to or
concurrently with the Acquiring Person becoming such and which receives such
Rights pursuant to either (A) a transfer (whether or not for consideration) from
the Acquiring Person (or any such Associate or Affiliate) to holders of equity
interests in such Acquiring Person (or such Associate or Affiliate) or to any
Person with whom such Acquiring Person

<PAGE>
 
                                       9

(or such Associate or Affiliate) has any continuing agreement, arrangement or
understanding regarding either the transferred Rights, shares of Company Common
Stock or the Company or (B) a transfer which a majority of the Continuing
Directors has determined to be part of a plan, arrangement or understanding
which has as a primary purpose or effect the avoidance of Section 7(e), shall,
upon the written direction of a majority of the Continuing Directors, contain
(to the extent feasible) the following legend:

          "The Rights represented by this Rights Certificate are or were
     beneficially owned by a Person who was or became an Acquiring Person or an
     Affiliate or Associate of an Acquiring Person (as such terms are defined in
     the Rights Agreement).  Accordingly, this Rights Certificate and the Rights
     represented hereby may become null and void in the circumstances specified
     in Section 7(e) of such Agreement."

          SECTION 5.  Countersignature and Registration.  (a)  Rights
                      ---------------------------------              
Certificates shall be executed on behalf of the Company by its Chairman of the
Board, the President or one of its Vice Presidents, under its corporate seal
reproduced thereon attested by its Secretary or one of its Assistant
Secretaries.  The signature of any one or more of these officers on the Rights
Certificates may be manual or facsimile.  Rights Certificates bearing the manual
or facsimile signatures of the individuals who were at any time the proper
officers of the Company shall bind the Company, notwithstanding that such
individuals or any of them have ceased to hold such offices prior to the
countersignature of such Rights Certificates or did not hold such offices at the
date of such Rights Certificates.  No Rights Certificate shall be entitled to
any benefit under this Agreement or be valid for any purpose unless there
appears on such Rights Certificate a countersignature duly executed by the
Rights Agent by manual signature of an authorized signatory, and such
countersignature upon any Rights Certificate shall be conclusive evidence, and
the only evidence, that such Rights Certificate has been duly countersigned as
required hereunder.

          (b) Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at its office designated for surrender of Rights Certificates
upon exercise or transfer, books for registration and transfer of the Rights
Certificates issued hereunder.  Such books shall show the name and address of
each holder of the Rights Certificates, the number of Rights evidenced on its
face by each Rights Certificate and the date of each Rights Certificate.

          SECTION 6.  Transfer, Split Up, Combination and Exchange of Rights
                      ------------------------------------------------------
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.  (a)
- ----------------------------------------------------------------------       
Subject to the provisions of Sections 4(b), 7(e) and 14, at any time after the
Close of Business on the Distribution Date, and at or prior to the Close of
Business on the Expiration Date, any Rights Certificate or Certificates may be
transferred, split up, combined or exchanged for another Rights Certificate or
Certificates, entitling the registered holder to purchase a like

<PAGE>
 
                                      10

number of Units of Preferred Stock (or, following a Triggering Event, other
securities, cash or other assets, as the case may be) as the Rights Certificate
or Certificates surrendered then entitled such holder to purchase.  Any
registered holder desiring to transfer, split up, combine or exchange any Rights
Certificate or Certificates shall make such request in writing delivered to the
Rights Agent, and shall surrender the Rights Certificate or Certificates to be
transferred, split up, combined or exchanged at the office of the Rights Agent
designated for such purpose.  Neither the Rights Agent nor the Company shall be
obligated to take any action whatsoever with respect to the transfer of any such
surrendered Rights Certificate until the registered holder shall have completed
and executed the certificate set forth in the form of assignment on the reverse
side of such Rights Certificate and shall have provided such additional evidence
of the identity of the Beneficial Owner (or former Beneficial Owner) of the
Rights represented by such Rights Certificate or Affiliates or Associates
thereof as the Company shall reasonably request; whereupon the Rights Agent
shall, subject to the provisions of Sections 4(b), 7(e) and 14, countersign and
deliver to the Person entitled thereto a Rights Certificate or Rights
Certificates, as the case may be, as so requested.  The Company may require
payment of a sum sufficient to cover any tax or governmental charge that may be
imposed in connection with any transfer, split up, combination or exchange of
Rights Certificates.

          (b) If a Rights Certificate shall be mutilated, destroyed, lost or
stolen, upon request by the registered holder of the Rights represented thereby
and upon payment to the Company and the Rights Agent of all reasonable expenses
incident thereto, there shall be issued, in exchange for and upon cancellation
of the mutilated Rights Certificate, or in substitution for the lost, stolen or
destroyed Rights Certificate, a new Rights Certificate, in substantially the
form of the prior Rights Certificate, of like tenor and representing the
equivalent number of Rights, but, in the case of loss, theft or destruction,
only upon receipt of evidence satisfactory to the Company and the Rights Agent
of such loss, theft or destruction of such Rights Certificate and, if requested
by the Company or the Rights Agent, indemnity also satisfactory to it.

          SECTION 7.  Exercise of Rights; Purchase Price; Expiration Date of
                      ------------------------------------------------------
Rights.  (a)  Prior to the earlier of (i) the Close of Business on the tenth
- ------                                                                      
anniversary hereof (the "FINAL EXPIRATION DATE"), and (ii) the time at which the
Rights are redeemed as provided in Section 23 hereof (the earlier of (i) and
(ii) being the "EXPIRATION DATE"), the registered holder of any Rights
Certificate may, subject to the provisions of Sections 7(e) and 9(c) hereof,
exercise the Rights evidenced thereby in whole or in part at any time after the
Distribution Date upon surrender of the Rights Certificate, with the form of
election to purchase and the certificate on the reverse side thereof duly
executed, to the Rights Agent at the office of the Rights Agent designated for
such purpose, together with payment of the aggregate Purchase Price (as
hereinafter defined) for the number of Units of Preferred Stock (or, following a
Triggering Event, other securities, cash or other assets, as the case may be)
for which such surrendered Rights are then exercisable.

<PAGE>
 
                                      11

          (b) The purchase price for each one one-thousandth of a share (each
such one one-thousandth of a share being a "UNIT") of Preferred Stock upon
exercise of Rights shall be $50.00, subject to adjustment from time to time as
provided in Sections 11 and 13(a) hereof (such purchase price, as so adjusted,
being the "PURCHASE PRICE"), and shall be payable in accordance with paragraph
(c) below.

          (c) As promptly as practicable following the occurrence of the
Distribution Date, the Company shall deposit with a corporation in good standing
organized under the laws of the United States or any State of the United States,
which is authorized under such laws to exercise corporate trust or stock
transfer powers and is subject to supervision or examination by federal or state
authority (such institution being the "DEPOSITARY AGENT"), certificates
representing the shares of Preferred Stock that may be acquired upon exercise of
the Rights and shall cause such Depositary Agent to enter into an agreement
pursuant to which the Depositary Agent shall issue receipts representing
interests in the shares of Preferred Stock so deposited.  Upon receipt of a
Rights Certificate representing exercisable Rights, with the form of election to
purchase and the certificate duly executed, accompanied by payment, with respect
to each Right so exercised, of the Purchase Price for the Units of Preferred
Stock (or, following a Triggering Event, other securities, cash or other assets,
as the case may be) to be purchased thereby as set forth below and an amount
equal to any applicable transfer tax or evidence satisfactory to the Company of
payment of such tax, the Rights Agent shall, subject to Section 20(k) hereof,
thereupon promptly (i) requisition from the Depositary Agent depositary receipts
representing such number of Units of Preferred Stock as are to be purchased and
the Company will direct the Depositary Agent to comply with such request, (ii)
requisition from the Company the amount of cash, if any, to be paid in lieu of
fractional shares in accordance with Section 14, (iii) after receipt of such
depositary receipts, cause the same to be delivered to or upon the order of the
registered holder of such Rights Certificate, registered in such name or names
as may be designated by such holder, and (iv) after receipt thereof, deliver
such cash, if any, to or upon the order of the registered holder of such Rights
Certificate.  In the event that the Company is obligated to issue Company Common
Stock, other securities of the Company, pay cash and/or distribute other
property pursuant to Section 11(a), the Company will make all arrangements
necessary so that such Company Common Stock, other securities, cash and/or other
property are available for distribution by the Rights Agent, if and when
appropriate.  The payment of the Purchase Price (as such amount may be reduced
pursuant to Section 11(a)(iii)) may be made in cash or by certified or bank
check payable to the order of the Company, or by wire transfer of immediately
available funds to the account of the Company (provided that notice of such wire
transfer shall be given by the holder of the related Right to the Rights Agent).

          (d) In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing the Rights remaining unexercised shall be issued by the Rights Agent
and delivered to, or upon the

<PAGE>
 
                                      12

order of, the registered holder of such Rights Certificate, registered in such
name or names as may be designated by such holder, subject to the provisions of
Section 14.

          (e) Notwithstanding anything in this Agreement to the contrary, from
and after the first occurrence of any Section 11(a)(ii) Event or Section 13
Event, any Rights beneficially owned by (i) an Acquiring Person or an Associate
or Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person
(or of any such Associate or Affiliate) which becomes a transferee after the
Acquiring Person becomes such, or (iii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) which becomes a transferee prior to or
concurrently with the Acquiring Person becoming such and which receives such
Rights pursuant to either (A) a transfer (whether or not for consideration) from
the Acquiring Person (or any such Associate or Affiliate) to holders of equity
interests in such Acquiring Person (or such Associate or Affiliate) or to any
Person with whom such Acquiring Person (or such Associate or Affiliate) has any
continuing agreement, arrangement or understanding regarding the transferred
Rights, shares of Company Common Stock or the Company or (B) a transfer which a
majority of the Continuing Directors has determined to be part of a plan,
arrangement or understanding which has as a primary purpose or effect the
avoidance of this Section 7(e), shall be null and void without any further
action, and no holder of such Rights shall have any rights whatsoever with
respect to such Rights, whether under any provision of this Agreement or
otherwise.  The Company shall use all reasonable efforts to ensure that the
provisions of this Section 7(e) and Section 4(b) are complied with, but shall
have no liability to any holder of Rights or any other Person as a result of its
failure to make any determination under this Section 7(e) or Section 4(b) with
respect to an Acquiring Person or its Affiliates, Associates or transferees.

          (f) Notwithstanding anything in this Agreement or any Rights
Certificate to the contrary, neither the Rights Agent nor the Company shall be
obligated to undertake any action with respect to a registered holder upon the
occurrence of any purported exercise by such registered holder unless such
registered holder shall have (i) completed and executed the certificate
following the form of election to purchase set forth on the reverse side of the
Rights Certificate surrendered for such exercise and (ii) provided such
additional evidence of the identity of the Beneficial Owner (or former
Beneficial Owner) of the Rights represented by such Rights Certificate or
Affiliates or Associates thereof as the Company shall reasonably request.

          SECTION 8.  Cancellation and Destruction of Rights Certificates.  All
                      ---------------------------------------------------      
Rights Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered to the Rights Agent, shall be cancelled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
this Agreement.  The Company shall deliver to the Rights Agent for cancellation
and retirement, and the Rights Agent shall so cancel and retire, any Rights

<PAGE>
 
                                      13

Certificates acquired by the Company otherwise than upon the exercise thereof.
The Rights Agent shall deliver all cancelled Rights Certificates to the Company,
or shall, at the written request of the Company, destroy such cancelled Rights
Certificates, and in such case shall deliver a certificate of destruction
thereof to the Company.

          SECTION 9.  Reservation and Availability of Capital Stock.  (a)  The
                      ---------------------------------------------           
Company shall at all times prior to the Expiration Date cause to be reserved and
kept available, out of its authorized and unissued shares of Preferred Stock,
the number of shares of Preferred Stock that, as provided in this Agreement,
will be sufficient to permit the exercise in full of all outstanding Rights.
Upon the occurrence of any events resulting in an increase in the aggregate
number of shares of Preferred Stock (or other equity securities of the Company)
issuable upon exercise of all outstanding Rights above the number then reserved,
the Company shall make appropriate increases in the number of shares so
reserved.

          (b) If the shares of Preferred Stock to be issued and delivered upon
the exercise of the Rights may be listed on any national securities exchange,
the Company shall during the period from the Distribution Date through the
Expiration Date use its best efforts to cause all securities reserved for such
issuance to be listed on such exchange upon official notice of issuance upon
such exercise.

          (c) The Company shall use its best efforts (i) as soon as practicable
following the occurrence of a Section 11(a)(ii) Event and a determination by the
Company in accordance with Section 11(a)(iii) of the consideration to be
delivered by the Company upon exercise of the Rights or, if so required by law,
as soon as practicable following the Distribution Date (such date being the
"REGISTRATION DATE"), to file a registration statement on an appropriate form
under the Securities Act with respect to the securities that may be acquired
upon exercise of the Rights (the "REGISTRATION STATEMENT"), (ii) to cause the
Registration Statement to become effective as soon as practicable after such
filing, (iii) to cause the Registration Statement to continue to be effective
(and to include a prospectus complying with the requirements of the Securities
Act) until the earlier of (A) the date as of which the Rights are no longer
exercisable for the securities covered by the Registration Statement and (B) the
Expiration Date and (iv) to take as soon as practicable following the
Registration Date such action as may be required to ensure that any acquisition
of securities upon exercise of the Rights complies with any applicable state
securities or "blue sky" laws.

          (d) The Company shall take such action as may be necessary to ensure
that all shares of Preferred Stock (and, following the occurrence of a
Triggering Event, any other securities that may be delivered upon exercise of
Rights) shall be, at the time of delivery of the certificates or depositary
receipts for such securities, duly and validly authorized and issued and fully
paid and non-assessable.

<PAGE>
 
                                      14

          (e) The Company shall pay any documentary, stamp or transfer tax
imposed in connection with the issuance or delivery of the Rights Certificates
or upon the exercise of Rights; provided, however, the Company shall not be
required to pay any such tax imposed in connection with the issuance or delivery
of Units of Preferred Stock, or any certificates or depositary receipts for such
Units of Preferred Stock (or, following the occurrence of a Triggering Event,
any other securities, cash or assets, as the case may be) to any person other
than the registered holder of the Rights Certificates evidencing the Rights
surrendered for exercise.  The Company shall not be required to issue or deliver
any certificates or depositary receipts for Units of Preferred Stock (or,
following the occurrence of a Triggering Event, any other securities, cash or
assets, as the case may be) to, or in a name other than that of, the registered
holder of the Rights Certificate upon the exercise of any Rights represented
thereby until any such tax shall have been paid (any such tax being payable by
the holder of such Rights Certificate at the time of surrender) or until it has
been established to the Company's satisfaction that no such tax is due.

          SECTION 10.  Preferred Stock Record Date.  Each Person in whose name
                       ---------------------------                            
any certificate for Units of Preferred Stock (or, following the occurrence of a
Triggering Event, other securities) is issued upon the exercise of Rights shall
for all purposes be deemed to have become the holder of record of the Units of
Preferred Stock (or, following the occurrence of a Triggering Event, other
securities) represented thereby on, and such certificate shall be dated, the
date upon which the Rights Certificate evidencing such Rights was duly
surrendered and payment of the Purchase Price (and any applicable transfer
taxes) was made; provided, however, that if the date of such surrender and
payment is a date upon which the Preferred Stock (or, following the occurrence
of a Triggering Event, other securities) transfer books of the Company are
closed, such Person shall be deemed to have become the record holder of such
securities on, and such certificate shall be dated, the next succeeding Business
Day on which the Preferred Stock (or, following the occurrence of a Triggering
Event, other securities) transfer books of the Company are open; and further
provided, however, that if delivery of Units of Preferred Stock is delayed
pursuant to Section 9(c), such Persons shall be deemed to have become the record
holders of such Units of Preferred Stock only when such Units first become
deliverable.  Prior to the exercise of the Rights evidenced thereby, the holder
of a Rights Certificate shall not be entitled to any rights of a shareholder of
the Company with respect to securities for which the Rights shall be
exercisable, including, without limitation, the right to vote, to receive
dividends or other distributions or to exercise any preemptive rights, and shall
not be entitled to receive any notice of any proceedings of the Company, except
as provided herein.

          SECTION 11.  Adjustment of Purchase Price, Number and Kind of Shares
                       -------------------------------------------------------
or Number of Rights.  The Purchase Price, the number and kind of securities
- -------------------                                                        
covered by each Right and the number of Rights outstanding are subject to
adjustment from time to time as provided in this Section 11.

<PAGE>
 
                                      15

          (a) (i)  In the event the Company shall at any time after the date of
     this Agreement (A) declare a dividend on the Preferred Stock payable in
     shares of Preferred Stock, (B) subdivide the outstanding Preferred Stock,
     (C) combine the outstanding Preferred Stock into a smaller number of shares
     or (D) issue any shares of its capital stock in a reclassification of the
     Preferred Stock (including any such reclassification in connection with a
     consolidation or merger in which the Company is the continuing or surviving
     corporation), except as otherwise provided in this Section 11(a), the
     Purchase Price in effect at the time of the record date for such dividend
     or of the effective date of such subdivision, combination or
     reclassification, and the number and kind of shares of Preferred Stock or
     capital stock, as the case may be, issuable on such date upon exercise of
     the Rights, shall be proportionately adjusted so that the holder of any
     Right exercised after such time shall be entitled to receive, upon payment
     of the Purchase Price then in effect, the aggregate number and kind of
     shares of Preferred Stock or capital stock, as the case may be, which, if
     such Right had been exercised immediately prior to such date, such holder
     would have owned upon such exercise and been entitled to receive by virtue
     of such dividend, subdivision, combination or reclassification.  If an
     event occurs which would require an adjustment under both this Section
     11(a)(i) and Section 11(a)(ii), the adjustment provided for in this Section
     11(a)(i) shall be in addition to, and shall be made prior to, any
     adjustment required pursuant to Section 11(a)(ii).

          (ii)  In the event:

               (A) any Acquiring Person or any Associate or Affiliate of any
          Acquiring Person, at any time after the date of this Agreement,
          directly or indirectly, shall (1) merge into the Company or otherwise
          combine with the Company and the Company shall be the continuing or
          surviving corporation of such merger or combination and Company Common
          Stock shall remain outstanding and unchanged, (2) in one transaction
          or a series of transactions, transfer any assets to the Company or to
          any of its Subsidiaries in exchange (in whole or in part) for shares
          of Company Common Stock, for other equity securities of the Company or
          any such Subsidiary, or for securities exercisable for or convertible
          into shares of equity securities of the Company or any of its
          Subsidiaries (whether Company Common Stock or otherwise) or otherwise
          obtain from the Company or any of its Subsidiaries, with or without
          consideration, any additional shares of such equity securities or
          securities exercisable for or convertible into such equity securities
          (other than pursuant to a pro rata distribution to all holders of
          Company Common Stock), (3) sell, purchase, lease, exchange, mortgage,
          pledge, transfer or otherwise acquire or dispose of, in one
          transaction or a series of transactions, to, from or with the Company
          or any of its Subsidiaries or any employee benefit plan maintained by
          the Company or any of its Subsidiaries or any trustee or fiduciary
          with

<PAGE>
 
                                      16

          respect to such plan acting in such capacity, assets (including
          securities) on terms and conditions less favorable to the Company or
          such Subsidiary or plan than those that could have been obtained in
          arm's-length negotiations with an unaffiliated third party, other than
          pursuant to a transaction set forth in Section 13(a), (4) sell,
          purchase, lease, exchange, mortgage, pledge, transfer or otherwise
          acquire or dispose of, in one transaction or a series of transactions,
          to, from or with the Company or any of the Company's Subsidiaries or
          any employee benefit plan maintained by the Company or any of its
          Subsidiaries or any trustee or fiduciary with respect to such plan
          acting in such capacity (other than transactions, if any, consistent
          with those engaged in, as of the date hereof, by the Company and such
          Acquiring Person or such Associate or Affiliate), assets (including
          securities) having an aggregate fair market value of more than
          $1,000,000, other than pursuant to a transaction set forth in Section
          13(a), (5) sell, purchase, lease, exchange, mortgage, pledge, transfer
          or otherwise acquire or dispose of, in one transaction or a series of
          transactions, to, from or with the Company or any of its Subsidiaries
          or any employee benefit plan maintained by the Company or any of its
          Subsidiaries or any trustee or fiduciary with respect to such plan
          acting in such capacity, any material trademark or material service
          mark, other than pursuant to a transaction set forth in Section 13(a),
          (6) receive, or any designee, agent or representative of such
          Acquiring Person or any Affiliate or Associate of such Acquiring
          Person shall receive, any compensation from the Company or any of its
          Subsidiaries other than compensation for full-time employment as a
          regular employee at rates in accordance with the Company's (or its
          Subsidiaries') past practices, or (7) receive the benefit, directly or
          indirectly (except proportionately as a holder of Company Common Stock
          or as required by law or governmental regulation), of any loans,
          advances, guarantees, pledges or other financial assistance or any tax
          credits or other tax advantage provided by the Company or any of its
          Subsidiaries or any employee benefit plan maintained by the Company or
          any of its Subsidiaries or any trustee or fiduciary with respect to
          such plan acting in such capacity; or

               (B) any Person shall become an Acquiring Person, unless the event
          causing such Person to become an Acquiring Person is a transaction set
          forth in Section 13(a); or

               (C) during such time as there is an Acquiring Person, there shall
          be any reclassification of securities (including any reverse stock
          split), or recapitalization of the Company, or any merger or
          consolidation of the Company with any of its Subsidiaries or any other
          transaction or series of transactions involving the Company or any of
          its Subsidiaries, other than a transaction or transactions to which
          the provisions of Section 13(a) apply

<PAGE>
 
                                      17

          (whether or not with or into or otherwise involving an Acquiring
          Person), which has the effect, directly or indirectly, of increasing
          by more than 1% the proportionate share of the outstanding shares of
          any class of equity securities of the Company or any of its
          Subsidiaries that is directly or indirectly beneficially owned by any
          Acquiring Person or any Associate or Affiliate of any Acquiring
          Person;

     then, immediately upon the date of the occurrence of an event described in
     ----                                                                      
     Section 11(a)(ii)(A), (B) or (C) (a "SECTION 11(A)(II) EVENT"), proper
     provision shall be made so that each holder of a Right (except as provided
     below and in Section 7(e)) shall thereafter have the right to receive, upon
     exercise thereof at the then current Purchase Price in accordance with the
     terms of this Agreement, in lieu of the number of Units of Preferred Stock
     for which a Right was exercisable immediately prior to the first occurrence
     of a Section 11(a)(ii) Event, such number of Units of Preferred Stock as
     shall equal the result obtained by (x) multiplying the then current
     Purchase Price by the then number of Units of Preferred Stock for which a
     Right was exercisable immediately prior to the first occurrence of a
     Section 11(a)(ii) Event (such product thereafter being, for all purposes of
     this Agreement other than Section 13, the "PURCHASE PRICE"), and (y)
     dividing that product by 50% of the then current market price (determined
     pursuant to Section 11(d)) per Unit of Preferred Stock on the date of such
     first occurrence (such Units of Preferred Stock being the "ADJUSTMENT
     SHARES").

          (iii)  In the event that the number of shares of Preferred Stock which
     are authorized by the Company's Certificate of Incorporation but not
     outstanding or reserved for issuance for purposes other than upon exercise
     of the Rights is not sufficient to permit the exercise in full of the
     Rights in accordance with the foregoing subparagraph (ii) of this Section
     11(a), the Company, by the vote of a majority of the Continuing Directors,
     shall:  (A) determine the excess of (1) the value of the Adjustment Shares
     issuable upon the exercise of a Right (the "CURRENT VALUE") over (2) the
     Purchase Price (such excess being the "SPREAD"), and (B) with respect to
     each Right, make adequate provision to substitute for such Adjustment
     Shares, upon payment of the applicable Purchase Price, (1) cash, (2) a
     reduction in the Purchase Price, (3) Company Common Stock or other equity
     securities of the Company (including, without limitation, shares, or units
     of shares, of preferred stock (such other shares being "PREFERRED STOCK
     EQUIVALENTS")), (4) debt securities of the Company, (5) other assets or (6)
     any combination of the foregoing, having an aggregate value equal to the
     Current Value, where such aggregate value has been determined by a majority
     of the Continuing Directors, after receiving advice from a nationally
     recognized investment banking firm; PROVIDED, HOWEVER, that if the Company
     shall not have made adequate provision to deliver value pursuant to clause
     (B) above within thirty days following the later of (x) the first
     occurrence of a

<PAGE>
 
                                      18

     Section 11(a)(ii) Event and (y) the date on which the Company's right of
     redemption pursuant to Section 23(a) expires (the later of (x) and (y)
     being referred to herein as the "SECTION 11(A)(III) TRIGGER DATE"), then
     the Company shall be obligated to deliver, upon the surrender for exercise
     of a Right and without requiring payment of the Purchase Price, Units of
     Preferred Stock (to the extent available) and then, if necessary, cash,
     which Units of Preferred Stock and/or cash shall have an aggregate value
     equal to the Spread.  To the extent that the Company determines that some
     action need be taken pursuant to the first sentence of this Section
     11(a)(iii), the Company shall provide, subject to Section 7(e), that such
     action shall apply uniformly to all outstanding Rights.  For purposes of
     this Section 11(a)(iii), the value of a Unit of Preferred Stock shall be
     the current market price (as determined pursuant to Section 11(d)) per Unit
     of Preferred Stock on the Section 11(a)(iii) Trigger Date and the value of
     any preferred stock equivalent shall be deemed to have the same value as
     the Preferred Stock on such date.

          (b) In case the Company shall fix a record date for the issuance of
     rights, options or warrants to all holders of Preferred Stock entitling
     them to subscribe for or purchase (for a period expiring within forty-five
     calendar days after such record date) shares of Preferred Stock (or shares
     having substantially the same rights, privileges and preferences as shares
     of Preferred Stock ("EQUIVALENT PREFERRED STOCK")) or securities
     convertible into Preferred Stock or Equivalent Preferred Stock at a price
     per share of Preferred Stock or per share of Equivalent Preferred Stock (or
     having a conversion price per share, if a security convertible into
     Preferred Stock or Equivalent Preferred Stock) less than the current market
     price (as determined pursuant to Section 11(d)) per share of Preferred
     Stock on such record date, the Purchase Price to be in effect after such
     record date shall be determined by multiplying the Purchase Price in effect
     immediately prior to such record date by a fraction, the numerator of which
     shall be the sum of the number of shares of Preferred Stock outstanding on
     such record date plus the number of shares of Preferred Stock which the
     aggregate offering price of the total number of shares of Preferred Stock
     and/or Equivalent Preferred Stock so to be offered (and/or the aggregate
     initial conversion price of the convertible securities so to be offered)
     would purchase at such current market price, and the denominator of which
     shall be the number of shares of Preferred Stock outstanding on such record
     date plus the number of additional shares of Preferred Stock and/or
     Equivalent Preferred Stock to be offered for subscription or purchase (or
     into which the convertible securities so to be offered are initially
     convertible).  In case such subscription price may be paid by delivery of
     consideration part or all of which may be in a form other than cash, the
     value of such consideration shall be as determined in good faith by a
     majority of the Continuing Directors, whose determination shall be
     described in a statement filed with the Rights Agent and shall be binding
     on the Rights Agent and the holders of the Rights.  Shares of Preferred
     Stock owned by or held for the account of the Company or any Subsidiary
     shall not

<PAGE>
 
                                      19

     be deemed outstanding for the purpose of any such computation.  Such
     adjustment shall be made successively whenever such a record date is fixed,
     and in the event that such rights or warrants are not so issued, the
     Purchase Price shall be adjusted to be the Purchase Price which would then
     be in effect if such record date had not been fixed.

          (c) In case the Company shall fix a record date for a distribution to
     all holders of shares of Preferred Stock (including any such distribution
     made in connection with a consolidation or merger in which the Company is
     the continuing corporation) of evidences of indebtedness, cash (other than
     a regular quarterly cash dividend out of the earnings or retained earnings
     of the Company), assets (other than a dividend payable in shares of
     Preferred Stock, but including any dividend payable in stock other than
     Preferred Stock) or subscription rights or warrants (excluding those
     referred to in Section 11(b)), the Purchase Price to be in effect after
     such record date shall be determined by multiplying the Purchase Price in
     effect immediately prior to such record date by a fraction, the numerator
     of which shall be the current market price (as determined pursuant to
     Section 11(d)) per share of Preferred Stock on such record date less the
     fair market value (as determined in good faith by a majority of the
     Continuing Directors, whose determination shall be described in a statement
     filed with the Rights Agent and shall be binding on the Rights Agent and
     the holder of the Rights) of the cash, assets or evidences of indebtedness
     so to be distributed or of such subscription rights or warrants
     distributable in respect of a share of Preferred Stock and the denominator
     of which shall be such current market price (as determined pursuant to
     Section 11(d)) per share of Preferred Stock.  Such adjustments shall be
     made successively whenever such a record date is fixed, and in the event
     that such distribution is not so made, the Purchase Price shall be adjusted
     to be the Purchase Price which would have been in effect if such record
     date had not been fixed.

          (d) (i)  For the purpose of any computation hereunder, the "CURRENT
     MARKET PRICE" per share of Company Common Stock or Common Stock on any date
     shall be deemed to be the average of the daily closing prices per share of
     such shares for the ten consecutive Trading Days immediately prior to such
     date; provided, however, if prior to the expiration of such requisite ten
     Trading Day period the issuer announces either (A) a dividend or
     distribution on such shares payable in such shares or securities
     convertible into such shares (other than the Rights) or (B) any
     subdivision, combination or reclassification of such shares, then,
     following the ex-dividend date for such dividend or the record date for
     such subdivision, as the case may be, the "CURRENT MARKET PRICE" shall be
     properly adjusted to take into account such event.  The closing price for
     each day shall be, if the shares are listed and admitted to trading on a
     national securities exchange, as reported in the principal consolidated
     transaction reporting system with respect to securities listed on the
     principal national securities exchange on which such shares are listed or
     admitted to trading or, if such shares are

<PAGE>
 
                                      20

     not listed or admitted to trading on any national securities exchange, the
     last quoted price or, if not so quoted, the average of the high bid and low
     asked prices in the over-the-counter market, as reported by the NASDAQ
     National Market System or such other system then in use, or, if on any such
     date such shares are not quoted by any such organization, the average of
     the closing bid and asked prices as furnished by a professional market
     maker making a market in such shares selected by a majority of the
     Continuing Directors.  If on any such date no market maker is making a
     market in such shares, the fair value of such shares on such date as
     determined in good faith by a majority of the Continuing Directors shall be
     used.  If such shares are not publicly held or not so listed or traded,
     "CURRENT MARKET PRICE" per share shall mean the fair value per share as
     determined in good faith by a majority of the Continuing Directors, whose
     determination shall be described in a statement filed with the Rights Agent
     and shall be conclusive for all purposes.  The term "TRADING DAY" shall
     mean, if such shares are listed or admitted to trading on any national
     securities exchange, a day on which the principal national securities
     exchange on which such shares are listed or admitted to trading is open for
     the transaction of business or, if such shares are not so listed or
     admitted, a Business Day.

          (ii) For the purpose of any computation hereunder, the "CURRENT MARKET
     PRICE" per share of Preferred Stock shall be determined in the same manner
     as set forth above for Company Common Stock in clause (i) of this Section
     11(d) (other than the fourth sentence thereof).  If the current market
     price per share of Preferred Stock cannot be determined in the manner
     provided above or if the Preferred Stock is not publicly held or listed or
     traded in a manner described in clause (i) of this Section 11(d), the
     "CURRENT MARKET PRICE" per share of Preferred Stock shall be conclusively
     deemed to be an amount equal to $1000.00 (as such amount may be
     appropriately adjusted for such events as stock splits, stock dividends and
     recapitalizations with respect to Company Common Stock occurring after the
     date of this Agreement) multiplied by the current market price per share of
     Company Common Stock.  If neither Company Common Stock nor Preferred Stock
     is publicly held or so listed or traded, "CURRENT MARKET PRICE" per share
     of the Preferred Stock shall mean the fair value per share as determined in
     good faith by a majority of the Continuing Directors, whose determination
     shall be described in a statement filed with the Rights Agent and shall be
     binding on the Rights Agent and the holders of the Rights.  For all
     purposes of this Agreement, the "CURRENT MARKET PRICE" of a Unit of
     Preferred Stock shall be equal to the "current market price" of one share
     of Preferred Stock divided by 1000.

          (e) Anything herein to the contrary notwithstanding, no adjustment in
     the Purchase Price shall be required unless such adjustment would require
     an increase or decrease of at least 1% in the Purchase Price; provided,
     however, that any adjustments which by reason of this Section 11(e) are not
     required to be made shall be

<PAGE>
 
                                      21

     carried forward and taken into account in any subsequent adjustment.  All
     calculations under this Section 11 shall be made to the nearest cent or to
     the nearest one-hundredth of a share of Company Common Stock or Common
     Stock or other share or ten-thousandth of a share of Preferred Stock, as
     the case may be.  Notwithstanding the first sentence of this Section 11(e),
     any adjustment required by this Section 11 shall be made no later than the
     earlier of (i) three years from the date of the transaction which mandates
     such adjustment and (ii) the Expiration Date.

          (f) If as a result of an adjustment made pursuant to Section 11(a)(ii)
     or 13(a), the holder of any Right thereafter exercised shall become
     entitled to receive any shares of capital stock other than Preferred Stock,
     thereafter the number of such other shares so receivable upon exercise of
     any Right and the Purchase Price thereof shall be subject to adjustment
     from time to time in a manner and on terms as nearly equivalent as
     practicable to the provisions with respect to the Preferred Stock contained
     in Sections 11(a), (b), (c), (d), (e), (g), (h), (i), (j), (k), (l) and
     (m), and the provisions of Sections 7, 9, 10, 13 and 14 with respect to the
     Preferred Stock shall apply on like terms to any such other shares.

          (g) All Rights originally issued by the Company subsequent to any
     adjustment made to the Purchase Price hereunder shall evidence the right to
     purchase, at the adjusted Purchase Price, the number of Units of Preferred
     Stock (or other securities or amount of cash or combination thereof) that
     may be acquired from time to time hereunder upon exercise of the Rights,
     all subject to further adjustment as provided herein.

          (h) Unless the Company shall have exercised its election as provided
     in Section 11(i), upon each adjustment of the Purchase Price as a result of
     the calculations made in Sections 11(b) and (c), each Right outstanding
     immediately prior to the making of such adjustment shall thereafter
     evidence the right to purchase, at the adjusted Purchase Price, that number
     of Units of Preferred Stock (calculated to the nearest one ten-thousandth
     of a Unit) obtained by (i) multiplying (x) the number of Units of Preferred
     Stock covered by a Right immediately prior to this adjustment by (y) the
     Purchase Price in effect immediately prior to such adjustment of the
     Purchase Price and (ii) dividing the product so obtained by the Purchase
     Price in effect immediately after such adjustment of the Purchase Price.

          (i) The Company may elect on or after the date of any adjustment of
     the Purchase Price to adjust the number of Rights, in lieu of any
     adjustment in the number of Units of Preferred Stock that may be acquired
     upon the exercise of a Right.  Each of the Rights outstanding after the
     adjustment in the number of Rights shall be exercisable for the number of
     Units of Preferred Stock for which a Right was exercisable immediately
     prior to such adjustment.  Each Right held of record prior to

<PAGE>
 
                                      22

     such adjustment of the number of Rights shall become that number of Rights
     (calculated to the nearest ten-thousandth) obtained by dividing the
     Purchase Price in effect immediately prior to adjustment of the Purchase
     Price by the Purchase Price in effect immediately after adjustment of the
     Purchase Price.  The Company shall make a public announcement of its
     election to adjust the number of Rights, indicating the record date for the
     adjustment, and, if known at the time, the amount of the adjustment to be
     made.  This record date may be the date on which the Purchase Price is
     adjusted or any day thereafter, but, if the Rights Certificates have been
     issued, shall be at least ten days later than the date of such public
     announcement.  If Rights Certificates have been issued, upon each
     adjustment of the number of Rights pursuant to this Section 11(i), the
     Company shall, as promptly as practicable, cause to be distributed to
     holders of record of Rights Certificates on such record date Rights
     Certificates evidencing, subject to Section 14, the additional Rights to
     which such holders shall be entitled as a result of such adjustment, or, at
     the option of the Company, shall cause to be distributed to such holders of
     record in substitution and replacement for the Rights Certificates held by
     such holders prior to the date of adjustment, and upon surrender thereof,
     if required by the Company, new Rights Certificates evidencing all the
     Rights to which such holders shall be entitled after such adjustment.
     Rights Certificates to be so distributed shall be issued, executed and
     countersigned in the manner provided for herein (and may bear, at the
     option of the Company, the adjusted Purchase Price) and shall be registered
     in the names of the holders of record of Rights Certificates on the record
     date specified in the public announcement.

          (j) Irrespective of any adjustment or change in the Purchase Price or
     the number of Units of Preferred Stock issuable upon the exercise of the
     Rights, the Rights Certificates theretofore and thereafter issued may
     continue to express the Purchase Price per Unit and the number of Units of
     Preferred Stock which were expressed in the Initial Rights Certificates
     issued hereunder without prejudice to any such adjustment or change.

          (k) Before taking any action that would cause an adjustment reducing
     the Purchase Price below the then par value of the number of Units of
     Preferred Stock issuable upon exercise of the Rights, the Company shall
     take any corporate action which may, in the opinion of its counsel, be
     necessary in order that the Company may validly and legally issue such
     fully paid and non-assessable number of Units of Preferred Stock at such
     adjusted Purchase Price.

          (l) In any case in which this Section 11 shall require that an
     adjustment in the Purchase Price be made effective as of a record date for
     a specified event, the Company may elect to defer until the occurrence of
     such event the issuance to the holder of any Right exercised after such
     record date of that number of Units of

<PAGE>
 
                                      23

     Preferred Stock and shares of other capital stock or securities of the
     Company, if any, issuable upon such exercise over and above the number of
     Units of Preferred Stock and shares of other capital stock or securities of
     the Company, if any, issuable upon such exercise on the basis of the
     Purchase Price in effect prior to such adjustment; provided, however, that
     the Company shall deliver to such holder a due bill or other appropriate
     instrument evidencing such holder's right to receive such additional shares
     (fractional or otherwise) or securities upon the occurrence of the event
     requiring such adjustment.

          (m) Anything in this Section 11 to the contrary notwithstanding, the
     Company shall be entitled to make such reductions in the Purchase Price, in
     addition to those adjustments expressly required by this Section 11, as and
     to the extent that in their good faith judgment a majority of the
     Continuing Directors shall determine to be advisable in order that any (i)
     consolidation or subdivision of the Preferred Stock, (ii) issuance wholly
     for cash of any shares of Preferred Stock at less than the current market
     price, (iii) issuance wholly for cash of shares of Preferred Stock or
     securities which by their terms are convertible into or exchangeable for
     shares of Preferred Stock, (iv) stock dividends or (v) issuance of rights,
     options or warrants referred to in this Section 11, hereafter made by the
     Company to holders of its Preferred Stock, shall not be taxable to such
     holders or shall reduce the taxes payable by such holders.

          (n) The Company shall not, at any time after the Distribution Date,
     (i) consolidate with any other Person (other than a Subsidiary of the
     Company in a transaction which complies with Section 11(o)), (ii) merge
     with or into any other Person (other than a Subsidiary of the Company in a
     transaction which complies with Section 11(o)), or (iii) sell or transfer
     (or permit any Subsidiary to sell or transfer), in one transaction, or a
     series of transactions, assets or earning power aggregating more than 50%
     of the assets or earning power of the Company and its Subsidiaries (taken
     as a whole) to any other Person or Persons (other than the Company and/or
     any of its Subsidiaries in one or more transactions each of which complies
     with Section 11(o)), if (x) at the time of or immediately after such
     consolidation, merger or sale there are any rights, warrants or other
     instruments or securities outstanding or agreements in effect which would
     substantially diminish or otherwise eliminate the benefits intended to be
     afforded by the Rights or (y) prior to, simultaneously with or immediately
     after such consolidation, merger or sale, the Person which constitutes, or
     would constitute, the "Principal Party" for purposes of Section 13(a) shall
     have distributed or otherwise transferred to its shareholders or other
     persons holding an equity interest in such Person Rights previously owned
     by such Person or any of its Affiliates and Associates; provided, however,
     this Section 11(n) shall not affect the ability of any Subsidiary of the
     Company to consolidate with, merge with or into, or sell or transfer assets
     or earning power to, any other Subsidiary of the Company.

<PAGE>
 
                                      24

          (o) After the Distribution Date, the Company shall not, except as
     permitted by Section 23 or Section 26, take (or permit any Subsidiary to
     take) any action if at the time such action is taken it is reasonably
     foreseeable that such action will diminish substantially or otherwise
     eliminate the benefits intended to be afforded by the Rights.

          (p) Anything in this Agreement to the contrary notwithstanding, in the
     event that the Company shall at any time after the Rights Dividend
     Declaration Date and prior to the Distribution Date (i) declare a dividend
     on the outstanding shares of Company Common Stock payable in shares of
     Company Common Stock, (ii) subdivide the outstanding shares of Company
     Common Stock, (iii) combine the outstanding shares of Company Common Stock
     into a smaller number of shares, or (iv) issue any shares of its capital
     stock in a reclassification of Company Common Stock (including any such
     reclassification in connection with a consolidation or merger in which the
     Company is the continuing or surviving corporation), the number of Rights
     associated with each share of Company Common Stock then outstanding, or
     issued or delivered thereafter but prior to the Distribution Date, shall be
     proportionately adjusted so that the number of Rights thereafter associated
     with each share of Company Common Stock following any such event shall
     equal the result obtained by multiplying the number of Rights associated
     with each share of Company Common Stock immediately prior to such event by
     a fraction the numerator of which shall be the total number of shares of
     Company Common Stock outstanding immediately prior to the occurrence of the
     event and the denominator of which shall be the total number of shares of
     Company Common Stock outstanding immediately following the occurrence of
     such event.

          SECTION 12.  Certificate of Adjusted Purchase Price or Number of
                       ---------------------------------------------------
Shares.  Whenever an adjustment is made as provided in Section 11 or Section 13,
- ------                                                                          
the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts accounting for such adjustment,
(b) promptly file with the Rights Agent, and with each transfer agent for the
Preferred Stock and the Company Common Stock, a copy of such certificate, and
(c) mail a brief summary thereof to each holder of a Rights Certificate (or, if
prior to the Distribution Date, to each holder of a certificate representing
shares of Company Common Stock) in accordance with Section 25.  The Rights Agent
shall be fully protected in relying on any such certificate and on any
adjustment therein contained and shall not be deemed to have knowledge of any
such adjustment unless and until it shall have received such certificate.

          SECTION 13.  Consolidation, Merger or Sale or Transfer of Assets or
                       ------------------------------------------------------
Earning Power.  (a)  In the event that, following the Stock Acquisition Date,
- -------------                                                                
directly or indirectly, either (x) the Company shall consolidate with, or merge
with and into, any other Person (other than a Subsidiary of the Company in a
transaction which complies with Section 11(o)), and the Company shall not be the
continuing or surviving corporation of such

<PAGE>
 
                                      25

consolidation or merger, (y) any Person (other than a Subsidiary of the Company
in a transaction which complies with Section 11(o)) shall consolidate with, or
merge with or into, the Company, and the Company shall be the continuing or
surviving corporation of such consolidation or merger and, in connection with
such consolidation or merger, all or part of the outstanding shares of Company
Common Stock shall be converted into or exchanged for stock or other securities
of any other Person or cash or any other property, or (z) the Company shall sell
or otherwise transfer (or one or more of its Subsidiaries shall sell or
otherwise transfer) to any Person or Persons (other than the Company or any of
its Subsidiaries in one or more transactions each of which complies with Section
11(o)), in one or more transactions, assets or earning power aggregating more
than 50% of the assets or earning power of the Company and its Subsidiaries,
taken as a whole (any such event being a "SECTION 13 EVENT"), then, and in each
such case, proper provision shall be made so that:  (i) each holder of a Right,
except as provided in Section 7(e), shall thereafter have the right to receive,
upon the exercise thereof at the then current Purchase Price, such number of
validly authorized and issued, fully paid and non-assessable shares of Common
Stock of the Principal Party, which shares shall not be subject to any liens,
encumbrances, rights of first refusal, transfer restrictions or other adverse
claims, as shall be equal to the result obtained by (1) multiplying the then
current Purchase Price by the number of Units of Preferred Stock for which a
Right is exercisable immediately prior to the first occurrence of a Section 13
Event (or, if a Section 11(a)(ii) Event has occurred prior to the first
occurrence of a Section 13 Event, multiplying the number of such Units for which
a Right would be exercisable hereunder but for the occurrence of such Section
11(a)(ii) Event by the Purchase Price which would be in effect hereunder but for
such first occurrence) and (2) dividing that product (which, following the first
occurrence of a Section 13 Event, shall be the "PURCHASE PRICE" for all purposes
of this Agreement) by 50% of the current market price (determined pursuant to
Section 11(d)) per share of the Common Stock of such Principal Party on the date
of consummation of such Section 13 Event; (ii) such Principal Party shall
thereafter be liable for, and shall assume, by virtue of such Section 13 Event,
all the obligations and duties of the Company pursuant to this Agreement; (iii)
the term "Company" shall, for all purposes of this Agreement, thereafter be
deemed to refer to such Principal Party, it being specifically intended that the
provisions of Section 11 shall apply only to such Principal Party following the
first occurrence of a Section 13 Event; (iv) such Principal Party shall take
such steps (including, but not limited to, the reservation of a sufficient
number of shares of its Common Stock) in connection with the consummation of any
such transaction as may be necessary to ensure that the provisions of this
Agreement shall thereafter be applicable to its shares of Common Stock
thereafter deliverable upon the exercise of the Rights; and (v) the provisions
of Section 11(a)(ii) shall be of no further effect following the first
occurrence of any Section 13 Event.

<PAGE>
 
                                      26

          (b)  "PRINCIPAL PARTY" shall mean:

          (i) in the case of any transaction described in clause (x) or (y) of
     the first sentence of Section 13(a), (A) the Person that is the issuer of
     any securities into which shares of Company Common Stock are converted in
     such merger or consolidation, or, if there is more than one such issuer,
     the issuer of Common Stock that has the highest aggregate current market
     price (determined pursuant to Section 11(d)) and (B) if no securities are
     so issued, the Person that is the other party to such merger or
     consolidation, or, if there is more than one such Person, the Person the
     Common Stock of which has the highest aggregate current market price
     (determined pursuant to Section 11(d)); and

          (ii) in the case of any transaction described in clause (z) of the
     first sentence of Section 13(a), the Person that is the party receiving the
     largest portion of the assets or earning power transferred pursuant to such
     transaction or transactions, or, if each Person that is a party to such
     transaction or transactions receives the same portion of the assets or
     earning power transferred pursuant to such transaction or transactions or
     if the Person receiving the largest portion of the assets or earning power
     cannot be determined, whichever Person the Common Stock of which has the
     highest aggregate current market price (determined pursuant to Section
     11(d)); provided, however, that in any such case, (1) if the Common Stock
     of such Person is not at such time and has not been continuously over the
     preceding twelve-month period registered under Section 12 of the Exchange
     Act ("REGISTERED COMMON STOCK"), or such Person is not a corporation, and
     such Person is a direct or indirect Subsidiary of another Person that has
     Registered Common Stock outstanding, "PRINCIPAL PARTY" shall refer to such
     other Person; (2) if the Common Stock of such Person is not Registered
     Common Stock or such Person is not a corporation, and such Person is a
     direct or indirect Subsidiary of another Person but is not a direct or
     indirect Subsidiary of another Person which has Registered Common Stock
     outstanding, "Principal Party" shall refer to the ultimate parent entity of
     such first-mentioned Person; (3) if the Common Stock of such Person is not
     Registered Common Stock or such Person is not a corporation, and such
     Person is directly or indirectly controlled by more than one Person, and
     one or more of such other Persons has Registered Common Stock outstanding,
     "PRINCIPAL PARTY" shall refer to whichever of such other Persons is the
     issuer of the Registered Common Stock having the highest aggregate current
     market price (determined pursuant to Section 11(d)); and (4) if the Common
     Stock of such Person is not Registered Common Stock or such Person is not a
     corporation, and such Person is directly or indirectly controlled by more
     than one Person, and none of such other Persons have Registered Common
     Stock outstanding, "PRINCIPAL PARTY" shall refer to whichever ultimate
     parent entity is the corporation having the greatest shareholders' equity
     or, if no such ultimate parent

<PAGE>
 
                                      27

     entity is a corporation, shall refer to whichever ultimate parent entity is
     the entity having the greatest net assets.

          (c) The Company shall not consummate any such consolidation, merger,
sale or transfer unless the Principal Party shall have a sufficient number of
authorized shares of its Common Stock which have not been issued or reserved for
issuance to permit the exercise in full of the Rights in accordance with this
Section 13, and unless prior thereto the Company and such Principal Party shall
have executed and delivered to the Rights Agent a supplemental agreement
providing for the terms set forth in paragraphs (a) and (b) of this Section 13
and further providing that the Principal Party will:

          (i) (A)  file on an appropriate form, as soon as practicable following
     the execution of such agreement, a registration statement under the
     Securities Act with respect to the Common Stock that may be acquired upon
     exercise of the Rights, (B) cause such registration statement to remain
     effective (and to include a prospectus complying with the requirements of
     the Securities Act) until the Expiration Date, and (C) as soon as
     practicable following the execution of such agreement take such action as
     may be required to ensure that any acquisition of such Common Stock upon
     the exercise of the Rights complies with any applicable state securities or
     "blue sky" laws; and

          (ii) deliver to holders of the Rights historical financial statements
     for the Principal Party and each of its Affiliates which comply in all
     respects with the requirements for registration on Form 10 under the
     Exchange Act.

          (d) In case the Principal Party which is to be a party to a
transaction referred to in this Section 13 has a provision in any of its
authorized securities or in its Certificate of Incorporation or By-laws or other
instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue, in connection with, or as a
consequence of, the consummation of a transaction referred to in this Section
13, shares of Common Stock of such Principal Party at less than the then current
market price per share (determined pursuant to Section 11(d)) or securities
exercisable for, or convertible into, Common Stock of such Principal Party at
less than such then current market price (other than to holders of Rights
pursuant to this Section 13) or (ii) providing for any special payment, tax or
similar provisions in connection with the issuance of the Common Stock of such
Principal Party pursuant to the provisions of this Section 13, then, in such
event, the Company shall not consummate any such transaction unless prior
thereto the Company and such Principal Party shall have executed and delivered
to the Rights Agent a supplemental agreement providing that the provision in
question of such Principal Party shall have been cancelled, waived or amended,
or that the authorized securities shall be redeemed, so that the applicable
provision will have no effect in connection with, or as a consequence of, the
consummation of the proposed transaction. The Rights Agent shall have no duty to
see that the terms or provisions of this Section 13 are complied with, 
including, but not limited to, seeing that a supplemental agreement, as set 
forth in this Section 13, is provided to the Rights Agent.


<PAGE>
 
                                      28

          (e) The provisions of this Section 13 shall similarly apply to
successive mergers or consolidations or sales or other transfers.  In the event
that a Section 13 Event shall occur at any time after the occurrence of a
Section 11(a)(ii) Event, the Rights which have not theretofore been exercised
shall thereafter become exercisable in the manner described in Section 13(a).

          SECTION 14.  Fractional Rights and Fractional Shares.  (a)  The
                       ---------------------------------------           
Company shall not be required to issue fractions of Rights or to distribute
Rights Certificates which evidence fractional Rights.  In lieu of such
fractional Rights, there shall be paid to the Persons to which such fractional
Rights would otherwise be issuable, an amount in cash equal to such fraction of
the market value of a whole Right.  For purposes of this Section 14(a), the
market value of a whole Right shall be the closing price of the Rights for the
Trading Day immediately prior to the date on which such fractional Rights would
have been otherwise issuable.  The closing price of the Rights for any day shall
be, if the Rights are listed or admitted to trading on a national securities
exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national securities exchange
on which the Rights are listed or admitted to trading or, if the Rights are not
listed or admitted to trading on any national securities exchange, the last
quoted price or, if not so quoted, the average of the high bid and low asked
prices in the over-the-counter market, as reported by NASDAQ or such other
system then in use or, if on any such date the Rights are not quoted by any such
organization, the average of the closing bid and asked prices as furnished by a
professional market maker making a market in the Rights selected by a majority
of the Continuing Directors.  If on any such date no such market maker is making
a market in the Rights, the fair value of the Rights on such date as determined
in good faith by a majority of the Continuing Directors shall be used and such
determination shall be described in a statement filed with the Rights Agent and
shall be conclusive for all purposes.

          (b) The Company shall not be required to issue fractions of shares of
Preferred Stock (other than fractions which are integral multiples of one one-
thousandth of a share of Preferred Stock) upon exercise of the Rights or to
distribute certificates which evidence such fractional shares of Preferred Stock
(other than fractions which are integral multiples of one one-thousandth of a
share of Preferred Stock).  In lieu of such fractional shares of Preferred Stock
that are not integral multiples of one one-thousandth of a share, the Company
may pay to the registered holders of Rights Certificates at the time such Rights
are exercised as herein provided an amount in cash equal to the same fraction of
the then current market price of a share of Preferred Stock on the day of
exercise, determined in accordance with Section 11(d).

          (c) The holder of a Right by the acceptance of such Right expressly
waives his right to receive any fractional Rights or any fractional shares upon
exercise of a Right, except as permitted by this Section 14.

<PAGE>
 
                                      29

          SECTION 15.  Rights of Action.  All rights of action in respect of
                       ----------------                                     
this Agreement, other than rights of action vested in the Rights Agent pursuant
to Section 18 hereof, are vested in the respective registered holders of the
Rights Certificates (and, prior to the Distribution Date, the registered holders
of certificates representing shares of Company Common Stock); and any registered
holder of a Rights Certificate (or, prior to the Distribution Date, of a
certificate representing shares of Company Common Stock), without the consent of
the Rights Agent or of the holder of any other Rights Certificate (or, prior to
the Distribution Date, of a certificate representing shares of Company Common
Stock), may, in such registered holder's own behalf and for such registered
holder's own benefit, enforce, and may institute and maintain any suit, action
or proceeding against the Company or any other Person to enforce, or otherwise
act in respect of, such registered holder's right to exercise the Rights
evidenced by such Rights Certificate in the manner provided in such Rights
Certificate and in this Agreement.  Without limiting the foregoing or any
remedies available to the holders of Rights, it is specifically acknowledged
that the holders of Rights would not have an adequate remedy at law for any
breach of this Agreement and shall be entitled to specific performance of the
obligations hereunder and injunctive relief against actual or threatened
violations of the obligations hereunder of any Person subject to this Agreement.

          SECTION 16.  Agreement of Rights Holders.  Every holder of a Right by
                       ---------------------------                             
accepting the same consents and agrees with the Company and the Rights Agent and
with every other holder of a Right that:

          (a) prior to the Distribution Date, the Rights will be transferable
     only in connection with the transfer of Company Common Stock;

          (b) after the Distribution Date, the Rights Certificates are
     transferable only on the registry books of the Rights Agent if surrendered
     at the office of the Rights Agent designated for such purposes, duly
     endorsed or accompanied by a proper instrument of transfer and with the
     appropriate forms and certificates duly executed;

          (c) subject to Section 6(a) and Section 7(f), the Company and the
     Rights Agent may deem and treat the person in whose name a Rights
     Certificate (or, prior to the Distribution Date, the associated Company
     Common Stock certificate) is registered as the absolute owner thereof and
     of the Rights evidenced thereby (notwithstanding any notations of ownership
     or writing on the Rights Certificates or the associated Company Common
     Stock certificate made by anyone other than the Company or the Rights
     Agent) for all purposes whatsoever, and neither the Company nor the Rights
     Agent, subject to the last sentence of Section 7(e), shall be affected by
     any notice to the contrary; and

<PAGE>
 
                                      30

          (d) notwithstanding anything in this Agreement to the contrary,
     neither the Company nor the Rights Agent shall have any liability to any
     holder of a Right or any other Person as a result of its inability to
     perform any of its obligations under this Agreement by reason of any
     preliminary or permanent injunction or other order, decree or ruling issued
     by a court of competent jurisdiction or by a governmental, regulatory or
     administrative agency or commission, or any statute, rule, regulation or
     executive order promulgated or enacted by any governmental authority,
     prohibiting or otherwise restraining performance of such obligation;
     provided, however, the Company must use its best efforts to have any such
     order, decree or ruling lifted or otherwise overturned as promptly as
     practicable.

          SECTION 17.  Rights Certificate Holder Not Deemed a Shareholder.  No
                       --------------------------------------------------     
holder, as such, of any Rights Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the number of shares of
Preferred Stock or any other securities of the Company which may at any time be
issuable on the exercise of the Rights represented thereby, nor shall anything
contained herein or in any Rights Certificate be construed to confer upon the
holder of any Rights Certificate, as such, any of the rights of a shareholder of
the Company or any right to vote for the election of directors or upon any
matter submitted to shareholders at any meeting thereof, or to give or withhold
consent to any corporate action, or, except as provided in Section 24, to
receive notice of meetings or other actions affecting shareholders, or to
receive dividends or subscription rights, or otherwise.

          SECTION 18.  Concerning the Rights Agent.  (a)  The Company agrees to
                       ---------------------------                             
pay to the Rights Agent reasonable compensation for all services rendered by it
hereunder and, from time to time, on demand of the Rights Agent, its reasonable
expenses, including reasonable fees and disbursements of its counsel, incurred
in connection with the execution and administration of this Agreement and the
exercise and performance of its duties hereunder.  The Company shall indemnify
the Rights Agent for, and hold it harmless against, any loss, liability, or
expense, incurred without negligence or willful misconduct on the part of the
Rights Agent, for anything done or omitted by the Rights Agent in connection
with the acceptance and administration of this Agreement, including the costs
and expenses of defending against any claim of liability hereunder. The
indemnity provided for herein shall survive the expiration of the Rights and the
termination of this Agreement. The costs and expenses incurred in enforcing this
right of indemnification will be paid the Company.

          (b) The Rights Agent may conclusively rely on and shall be protected
and shall incur no liability for or in respect of any action taken, suffered or
omitted by it in connection with its administration of this Agreement in
reliance upon any Rights Certificate or certificate for Preferred Stock or for
other securities of the Company, instrument of assignment or transfer, power of
attorney, endorsement, affidavit, letter, notice, direction, consent,
certificate, statement or other paper or document believed by it to be genuine
and to have been signed, executed and, where necessary, verified or acknowledged
by the proper Person or Persons.


<PAGE>
 
                                      31

          SECTION 19.  Merger or Consolidation or Change of Name of Rights
                       ---------------------------------------------------
Agent.  (a)  Any corporation into which the Rights Agent or any successor Rights
Agent may be merged or with which it may be consolidated, or any corporation
resulting from any merger or consolidation to which the Rights Agent or any
successor Rights Agent shall be a party, or any corporation succeeding to the
corporate trust or shareholder services businesses of the Rights Agent or any
successor Rights Agent, shall be the successor to the Rights Agent under this
Agreement without the execution or filing of any document or any further act on
the part of any of the parties hereto; provided that such corporation would be
eligible for appointment as a successor Rights Agent under the provisions of
Section 21.  In case at the time such successor Rights Agent shall succeed to
the agency created by this Agreement, any of the Rights Certificates shall have
been countersigned but not delivered, any such successor Rights Agent may adopt
the countersignature of a predecessor Rights Agent and deliver such Rights
Certificates so countersigned; and in case at that time any of the Rights
Certificates shall not have been countersigned, any successor Rights Agent may
countersign such Rights Certificates either in the name of the predecessor or in
the name of the successor Rights Agent; and in all such cases such Rights
Certificates shall have the full force provided in the Rights Certificates and
in this Agreement.

          (b) In case at any time the name of the Rights Agent shall be changed
and at such time any of the Rights Certificates shall have been countersigned
but not delivered, the Rights Agent may adopt the countersignature under its
prior name and deliver Rights Certificates so countersigned; and in case at that
time any of the Rights Certificates shall not have been countersigned, the
Rights Agent may countersign such Rights Certificates either in its prior name
or in its changed name; and in all such cases such Rights Certificates shall
have the full force provided in the Rights Certificates and in this Agreement.

          SECTION 20.  Duties of Rights Agent.  The Rights Agent undertakes the
                       ----------------------                                  
duties and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Rights Certificates,
by their acceptance thereof, shall be bound and no implied duties or obligations
shall be read into this Agreement against the Rights Agent:

          (a) Before the Rights Agent acts or refrains from acting, it may
     consult with legal counsel (who may be legal counsel for the Company), and
     the opinion of such counsel shall be full and complete authorization and
     protection to the Rights Agent as to any action taken or omitted by it in
     good faith and in accordance with such opinion.

          (b) Whenever in the performance of its duties under this Agreement the
     Rights Agent shall deem it necessary or desirable that any fact or matter
     (including, without limitation, the identity of any Acquiring Person, the
     identity of the Continuing Directors and the determination of "CURRENT
     MARKET PRICE") be proved or established by the Company prior to taking or
     suffering any action hereunder, such fact or matter (unless other evidence
     in respect thereof be specified herein) may be deemed to be conclusively
     proved and established


<PAGE>
 
                                      32

     by a certificate signed by the Chairman of the Board, the President, any
     Vice President, the Treasurer, any Assistant Treasurer, the Secretary or
     any Assistant Secretary of the Company and delivered to the Rights Agent;
     provided, however, that so long as any Person is an Acquiring Person
     hereunder, such certificate shall be signed and delivered by a majority of
     the Continuing Directors; and such certificate shall be full authorization
     to the Rights Agent for any action taken or suffered in good faith by it
     under the provisions of this Agreement in reliance upon such certificate.

          (c) The Rights Agent shall be liable hereunder only for its own
     negligence or willful misconduct.

          (d) The Rights Agent shall not be liable for or by reason of any of
     the statements of fact or recitals contained in this Agreement or in the
     Rights Certificates or be required to verify the same (except as to its
     countersignature on such Rights Certificates), but all such statements and
     recitals are and shall be deemed to have been made by the Company only.

          (e) The Rights Agent shall not have any responsibility for the
     validity of this Agreement or the execution and delivery hereof (except the
     due execution and delivery hereof by the Rights Agent) or for the validity
     or execution of any Rights Certificate (except its countersignature
     thereof); nor shall it be responsible for any breach by the Company of any
     covenant or failure by the Company to satisfy conditions contained in this
     Agreement or in any Rights Certificate; nor shall it be responsible for any
     adjustment required under the provisions of Section 11 or Section 13 or for
     the manner, method or amount of any such adjustment or the ascertaining of
     the existence of facts that would require any such adjustment (except with
     respect to the exercise of Rights evidenced by Rights Certificates after
     receipt by the Rights Agent of the certificate describing any such
     adjustment contemplated by Section 12); nor shall the Rights Agent be
     responsible for any change in the exercisability of the Rights (including
     Rights which become void pursuant to Section 7(e) of this Agreement) until
     the Rights Agent has actual knowledge of such change; nor shall it by any
     act hereunder be deemed to make any representation or warranty as to the
     authorization or reservation of any shares of Preferred Stock or any other
     securities to be issued pursuant to this Agreement or any Rights
     Certificate or as to whether any shares of Preferred Stock or any other
     securities will, when so issued, be validly authorized and issued, fully
     paid and non-assessable.

          (f) The Company shall perform, execute, acknowledge and deliver or
     cause to be performed, executed, acknowledged and delivered all such
     further acts, instruments and assurances as may reasonably be required by
     the Rights Agent for the performance by the Rights Agent of its duties
     under this Agreement.

          (g) The Rights Agent is hereby authorized and directed to accept
     instructions with respect to the performance of its duties hereunder from
     the Chairman of the Board, the President, any Vice President, the
     Secretary, any Assistant

<PAGE>
 
                                      33

     Secretary, the Treasurer or any Assistant Treasurer of the Company, and to
     apply to such officers for advice or instructions in connection with its
     duties, and it shall not be liable for any action taken or suffered to be
     taken by it in good faith in accordance with instructions of any such
     officer; provided, however, that so long as any Person is an Acquiring
     Person hereunder, the Rights Agent shall accept such instructions and
     advice only from a majority of the Continuing Directors and shall not be
     liable for any action taken or suffered to be taken by it in good faith in
     accordance with such instructions of the majority of the Continuing
     Directors.  Any application by the Rights Agent for written instructions
     from the Company may, at the option of the Rights Agent, set forth in
     writing any action proposed to be taken or omitted by the Rights Agent
     under this Rights Agreement and the date on and/or after which such action
     shall be taken or such omission shall be effective.  The Rights Agent shall
     not be liable for any action taken by, or omission of, the Rights Agent in
     accordance with a proposal included in any such application on or after the
     date specified in such application (which date shall not be less than five
     Business Days after the date any such officer of the Company actually
     receives such application, unless any such officer shall have consented in
     writing to an earlier date) unless, prior to taking any such action (or the
     effective date in the case of an omission), the Rights Agent shall have
     received written instructions in response to such application specifying
     the action to be taken or omitted.

          (h) The Rights Agent and any shareholder, director, officer or
     employee of the Rights Agent may buy, sell or deal in any of the Rights or
     other securities of the Company or become pecuniarily interested in any
     transaction in which the Company may be interested, or contract with or
     lend money to the Company or otherwise act as fully and freely as though it
     were not Rights Agent under this Agreement.  Nothing herein shall preclude
     the Rights Agent from acting in any other capacity for the Company or for
     any other Person.

          (i) The Rights Agent may execute and exercise any of the rights or
     powers hereby vested in it or perform any duty hereunder either itself or
     by or through its attorneys or agents, and the Rights Agent shall not be
     answerable or accountable for any act of default, neglect or misconduct of
     any such attorneys or agents or for any loss to Company resulting
     therefrom, provided reasonable care was employed in the selection and
                --------
     continued employment thereof.

          (j) No provision of this Agreement shall require the Rights Agent to
     expend or risk its own funds or otherwise incur any financial liability in
     the performance of any of its duties or in the exercise of its rights
     hereunder if the Rights Agent shall have reasonable grounds for believing
     that repayment of such funds or adequate indemnification against such risk
     or liability is not reasonably assured to it.

          (k) If, with respect to any Rights Certificate surrendered to the
     Rights Agent for exercise or transfer, the certificate attached to the form
     of assignment or form of election to purchase, as the case may be, has
     either not been completed, not

<PAGE>
 
                                      34

     signed or indicates an affirmative response to clause 1 and/or 2 thereof,
     the Rights Agent shall not take any further action with respect to such
     requested exercise or transfer without first consulting with the Company.
     If such certificate has been completed and signed and shows a negative
     response to clauses 1 and 2 of such certificate, unless previously
     instructed otherwise in writing by the Company (which instructions may
     impose on the Rights Agent additional ministerial responsibilities, but no
     discretionary responsibilities), the Rights Agent may assume without
     further inquiry that the Rights Certificate is not owned by a person
     described in Section 4(b) or Section 7(e) and shall not be charged with any
     knowledge to the contrary.

          SECTION 21.  Change of Rights Agent.  The Rights Agent or any
                       ----------------------                          
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon thirty days' prior notice in writing mailed to the Company, and
to each transfer agent of the Preferred Stock and the Company Common Stock, by
registered or certified mail, and to the holders of the Rights Certificates (or
certificates for the Company Common Stock prior to the Distribution Date) by
first-class mail.  The Company may remove the Rights Agent or any successor
Rights Agent upon thirty days' prior notice in writing, mailed to the Rights
Agent or successor Rights Agent, as the case may be, and to each transfer agent
of the Preferred Stock and the Company Common Stock, by registered or certified
mail, and to the holders of the Rights Certificates (or certificates for the
Company Common Stock prior to the Distribution Date) by first-class mail.  If
the Rights Agent shall resign or be removed or shall otherwise become incapable
of acting, the Company shall appoint a successor to the Rights Agent.  If the
Company shall fail to make such appointment within a period of thirty days after
giving notice of such removal or after it has been notified in writing of such
resignation or incapacity by the resigning or incapacitated Rights Agent or by
the holder of a Rights Certificate or, prior to the Distribution Date, the
holder of a certificate for the Company Common Stock (who shall, with such
notice, submit such holder's Rights Certificate or certificate for Company
Common Stock, as the case may be, for inspection by the Company), then any
registered holder of any Rights Certificate or, prior to the Distribution Date,
the holder of a certificate for the Company Common Stock may apply to any court
of competent jurisdiction for the appointment of a new Rights Agent.  Any
successor Rights Agent, whether appointed by the Company or by such a court,
shall be (a) a corporation organized and doing business under the laws of the
United States or any state of the United States in good standing, shall be
authorized to do business as a banking institution in the State of New York,
shall be authorized under such laws to exercise corporate trust or stock
transfer powers, shall be subject to supervision or examination by federal or
state authorities and shall have at the time of its appointment as Rights Agent
a combined capital and surplus of at least $100,000,000 or (b) an Affiliate of a
corporation described in clause (a).  After appointment, the successor Rights
Agent shall be vested with the same powers, rights, duties and responsibilities
as if it had been originally named as Rights Agent without further act or deed;
but the predecessor Rights Agent shall deliver and transfer to the successor
Rights Agent any property at the time held by it hereunder, and execute and

<PAGE>
 
                                      35

deliver any further assurance, conveyance, act or deed necessary for the
purpose.  Not later than the effective date of any such appointment, the Company
shall file notice thereof in writing with the predecessor Rights Agent and each
transfer agent of the Preferred Stock and the Company Common Stock, and mail a
notice thereof in writing to the registered holders of the Rights Certificates
(or certificates for the Company Common Stock prior to the Distribution Date).
Failure to give any notice provided for in this Section 21, however, or any
defect therein, shall not affect the legality or validity of the resignation or
removal of the Rights Agent or the appointment of the successor Rights Agent.

          SECTION 22.  Issuance of New Rights Certificates.  Notwithstanding any
                       -----------------------------------                      
of the provisions of this Agreement or the Rights to the contrary, the Company
may, at its option, issue new Rights Certificates evidencing Rights in such form
as may be approved by a majority of the Continuing Directors to reflect any
adjustment or change made in accordance with the provisions of this Agreement in
the Purchase Price or the number or kind or class of shares or other securities
or property that may be acquired upon exercise of the Rights.  In addition, in
connection with the issuance or sale of shares of Company Common Stock following
the Distribution Date and prior to the Expiration Date, the Company (a) shall,
with respect to shares of Company Common Stock so issued or sold pursuant to the
exercise of stock options or under any employee plan or arrangement, or upon the
exercise, conversion or exchange of securities hereinafter issued by the
Company, and (b) may, in any other case, if deemed necessary or appropriate by a
majority of the Continuing Directors, issue Rights Certificates representing the
appropriate number of Rights in connection with such issuance or sale; provided,
however, that (i) no such Rights Certificate shall be issued if, and to the
extent that, the Company shall be advised by counsel that such issuance would
create a significant risk of material adverse tax consequences to the Company or
the person to whom such Rights Certificate would be issued and (ii) no such
Rights Certificate shall be issued if, and to the extent that, appropriate
adjustment shall otherwise have been made in lieu of the issuance thereof.

          SECTION 23.  Redemption and Termination.   (a)  Subject to Section 28,
                       --------------------------                               
the Company may, at its option, by action of a majority of the Company's Board
of Directors, at any time prior to the earlier of (i) the Close of Business on
the tenth Business Day following the Stock Acquisition Date or (ii) the Final
Expiration Date, redeem all but not less than all of the then outstanding Rights
at a redemption price of $.001 per Right, as such amount may be appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof (such redemption price being the "REDEMPTION
PRICE"), and the Company may, at its option, by action of a majority of the
Continuing Directors, pay the Redemption Price either in shares of Company
Common Stock (based on the current market price, determined in accordance with
Section 11(d), of the shares of Company Common Stock at the time of redemption)
or cash; provided that, notwithstanding anything to the contrary contained in
this Section 23(a), the Company may not take any action pursuant to this Section
23(a) unless (x) at the time of the action of the Board of Directors of the

<PAGE>
 
                                      36

Company approving such redemption and the form of payment of the Redemption
Price, there are then in office not less than two Continuing Directors and (y)
such action is approved by a majority of the Continuing Directors then in
office.  Subject to the foregoing, the redemption of the Rights may be made
effective at such time, on such basis and with such conditions as the Board of
Directors in its sole discretion may establish.

          (b) Immediately upon the action of a majority of the Continuing
Directors ordering the redemption of the Rights, evidence of which shall be
filed with the Rights Agent, and without any further action and without any
notice, the right to exercise the Rights will terminate and the only right
thereafter of the holders of Rights shall be to receive the Redemption Price for
each Right so held.  Promptly after the action of a majority of the Continuing
Directors ordering the redemption of the Rights, the Company shall give notice
of such redemption to the Rights Agent and the holders of the then outstanding
Rights by mailing such notice to all such holders at each holder's last address
as it appears upon the registry books of the Rights Agent or, prior to the
Distribution Date, on the registry books of the transfer agent for Company
Common Stock.  Any notice which is mailed in the manner herein provided shall be
deemed given, whether or not the holder receives the notice.  Each such notice
of redemption will state the method by which the payment of the Redemption Price
will be made.

          SECTION 24.  Notice of Certain Events.  (a)  In case the Company shall
                       ------------------------                                 
propose, at any time after the Distribution Date, (i) to pay any dividend
payable in stock of any class to the holders of Preferred Stock or to make any
other distribution to the holders of Preferred Stock (other than a regular
quarterly cash dividend out of earnings or retained earnings of the Company),
(ii) to offer to the holders of Preferred Stock rights or warrants to subscribe
for or to purchase any additional shares of Preferred Stock or shares of stock
of any class or any other securities, rights or options, (iii) to effect any
reclassification of its Preferred Stock (other than a reclassification involving
only the subdivision of outstanding shares of Preferred Stock), (iv) to effect
any consolidation or merger into or with any other Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)),
or to effect any sale or other transfer (or to permit one or more of its
Subsidiaries to effect any sale or other transfer), in one or more transactions,
of more than 50% of the assets or earning power of the Company and its
Subsidiaries (taken as a whole) to any other Person or Persons (other than the
Company and/or any of its Subsidiaries in one or more transactions each of which
complies with Section 11(o)) or (v) to effect the liquidation, dissolution or
winding up of the Company, then, in each such case, the Company shall give to
each holder of a Rights Certificate (or, prior to the Distribution Date, to each
holder of certificates for Company Common Stock), to the extent feasible and in
accordance with Section 25, a notice of such proposed action, which shall
specify the record date for the purposes of such stock dividend, distribution of
rights or warrants, or the date on which such reclassification, consolidation,
merger, sale, transfer, liquidation, dissolution or winding up is to take place
and the date of participation therein by the holders of the shares of Preferred

<PAGE>
 
                                      37

Stock, if any such date is to be fixed, and such notice shall be so given in the
case of any action covered by clause (i) or (ii) above at least 20 days prior to
the record date for determining holders of the shares of Preferred Stock for
purposes of such action, and in the case of any such other action, at least 20
days prior to the date of the taking of such proposed action or the date of
participation therein by the holders of the shares of Preferred Stock, whichever
shall be the earlier; provided, however, no such notice shall be required
pursuant to this Section 24 if any Subsidiary of the Company effects a
consolidation or merger with or into, or effects a sale or other transfer of
assets or earnings power to, any other Subsidiary of the Company.

          (b) In case any of the events set forth in Section 11(a)(ii) shall
occur, then, in any such case, (i) the Company shall as soon as practicable
thereafter give to each holder of a Rights Certificate, to the extent feasible
and in accordance with Section 25, a notice of the occurrence of such event,
which shall specify the event and the consequences of the event to holders of
Rights under Section 11(a)(ii).

          SECTION 25.  Notices.  All notices and other communications provided
                       -------                                                
for hereunder shall, unless otherwise stated herein, be in writing and mailed or
sent or delivered (including by facsimile transmission), if to the Company, at
its address at:

          CT Corporation System
          520 Pike Street
          Seattle, Washington  98101
          Telecopy No.: (206) 622-4511

and if to the Rights Agent, at its address at:

 
 
          Harris Trust Company of California
          311 West Monroe Street
          Chicago, Illinois 60606 
          Attention: Cecelia Murphy
          Telecopy No.: (312) 461-1530

Notices or demands authorized or required by this Agreement to be given or made
by the Company or the Rights Agent to the holder of any Rights Certificate (or,
if prior to the Distribution Date, to the holder of certificates representing
shares of Company Common Stock) shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed to such holder at the address of
such holder as shown on the registry books of the Rights Agent or, prior to the
Distribution Date, on the registry books of the transfer agent for the Company
Common Stock. Notices to the Company or the Rights Agent shall be deemed given 
upon receipt.

<PAGE>
 
                                      38

          SECTION 26.  Supplements and Amendments.  Prior to the Distribution
                       --------------------------                            
Date and subject to the penultimate sentence of this Section 26, the Company and
the Rights Agent shall, if the Company so directs, supplement or amend any
provision of this Agreement without the approval of any holders of certificates
representing shares of Company Common Stock. From and after the Distribution
Date and subject to the penultimate sentence of this Section 26, the Company and
the Rights Agent shall, if the Company so directs, supplement or amend this
Agreement without the approval of any holders of Rights Certificates in order
(i) to cure any ambiguity, (ii) to correct or supplement any provision contained
herein which may be defective or inconsistent with any other provisions herein,
(iii) to shorten or lengthen any time period hereunder or (iv) to change or
supplement the provisions hereunder in any manner which the Company may deem
necessary or desirable and which shall not adversely affect the interests of the
holders of Rights Certificates (other than an Acquiring Person or an Affiliate
or Associate of an Acquiring Person) or the rights or duties of the Rights
Agent; provided, however, that this Agreement may not be supplemented or amended
to lengthen, pursuant to clause (iii) of this sentence, (A) subject to Section
28 hereof, a time period relating to when the Rights may be redeemed at such
time as the Rights are not then redeemable, or (B) any other time period unless
such lengthening is for the purpose of protecting, enhancing or clarifying the
rights of, and/or the benefits to, the holders of Rights. Upon the delivery of a
certificate from an appropriate officer of the Company or, so long as any Person
is an Acquiring Person hereunder, from the majority of the Continuing Directors,
which states that the proposed supplement or amendment is in compliance with the
terms of this Section 26, the Rights Agent shall execute such supplement or
amendment. Notwithstanding anything contained in this Agreement to the contrary,
supplements or amendments shall be made only if (x) at the time of the action of
the Board of Directors of the Company approving such supplement or amendment
there are then in office not less than two Continuing Directors and (y) such
supplement or amendment is approved by a majority of the Continuing Directors
then in office. Prior to the Distribution Date, the interests of the holders of
Rights shall be deemed coincident with the interests of the holders of Company
Common Stock.

          SECTION 27.  Successors.  All the covenants and provisions of this
                       ----------                                           
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

          SECTION 28.  Determinations and Actions by the Board of Directors,
                       -----------------------------------------------------
etc.  (a)  For all purposes of this Agreement, any calculation of the number of
shares of Company Common Stock outstanding at any particular time, including for
purposes of determining the particular percentage of such outstanding shares of
Company Common Stock of which any Person is the Beneficial Owner, shall be made
in accordance with the last sentence of Rule 13d-3(d)(1)(i) of the Exchange Act
Regulations as in effect on the date hereof.  Except as otherwise specifically
provided herein, and subject to paragraph (b) of this Section 28, the Board of
Directors of the Company shall have the exclusive power and authority to
administer this Agreement and to exercise all rights and powers specifically
granted to the

<PAGE>
 
                                      39

Board of Directors of the Company or to the Company, or as may be necessary or
advisable in the administration of this Agreement, including, without
limitation, the right and power (i) to interpret the provisions of this
Agreement and (ii) to make all determinations deemed necessary or advisable for
the administration of this Agreement.  All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) which are done or made by the Board
or by a majority of the Continuing Directors in good faith shall (x) be final,
conclusive and binding on the Company, the Rights Agent, the holders of the
Rights and all other parties, and (y) not subject the Board of Directors of the
Company or any member thereof to any liability to the holders of the Rights.

          (b) Notwithstanding anything to the contrary contained in this
Agreement, the concurrence of a majority of the Continuing Directors then in
office shall be required to give effect to any action, calculation,
interpretation or determination made by the Board of Directors of the Company in
the administration of this Agreement and the exercise of the rights or powers
granted to the Board of Directors of the Company, to the Continuing Directors or
to the Company pursuant to this Agreement and no effect shall be given to any
such action, calculation, interpretation, determination or exercise of rights or
powers unless at least two Continuing Directors are then in office.

          SECTION 29.  Benefits of this Agreement.  Nothing in this Agreement
                       --------------------------                            
shall be construed to give to any Person other than the Company, the Rights
Agent and the registered holders of the Rights Certificates (and, prior to the
Distribution Date, registered holders of shares of Company Common Stock) any
legal or equitable right, remedy or claim under this Agreement.  This Agreement
shall be for the sole and exclusive benefit of the Company, the Rights Agent and
the registered holders of the Rights Certificates (and, prior to the
Distribution Date, registered holders of shares of Company Common Stock).

          SECTION 30.  Severability.  If any term, provision, covenant or
                       ------------                                      
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and a majority of the
Continuing Directors determines in its good faith judgment that severing the
invalid language from this Agreement would adversely affect the purpose or
effect of this Agreement and the Rights shall not then be redeemable, the right
of redemption set forth in Section 23 hereof shall be reinstated and shall not
expire until the Close of Business on the tenth Business Day following the date
of such determination by a majority of the Continuing Directors.

<PAGE>
 
                                      40

          SECTION 31.  Governing Law.  This Agreement, each Right and each
                       -------------                                      
Rights Certificate issued hereunder shall be governed by, and construed in
accordance with, the laws of the State of Washington applicable to contracts
executed in and to be performed entirely in such State.

          SECTION 32.  Counterparts.  This Agreement may be executed (including
                       ------------                                            
by facsimile) in one or more counterparts, and by the different parties hereto
in separate counterparts, each of which when executed shall be deemed to be an
original, but all of which taken together shall constitute one and the same
instrument.

          SECTION 33.  Descriptive Headings.  The headings contained in this
                       --------------------                                 
Agreement are for descriptive purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.

          SECTION 34.  Exchange.  (a)  (i)  The Company may, at its option, at
                       --------                                               
any time after any person becomes an Acquiring Person, upon resolution by the
Board of Directors of the Company, exchange all or part of the then outstanding
and exercisable Rights (which shall not include Rights that have become void
pursuant to the provisions of Section 7(e)) for Units of Preferred Stock at an
exchange ratio of one Unit of Preferred Stock per Right, appropriately adjusted
to reflect any stock split, stock dividend or similar transaction occurring
after the date hereof (such exchange ratio being hereinafter referred to as the
"SECTION 34(A)(I) EXCHANGE RATIO").  Notwithstanding the foregoing, the Company
may not effect such exchange at any time after any Person (other than the
Company, any Subsidiary of the Company, any employee benefit plan maintained by
the Company or any of its Subsidiaries, or any trustee or fiduciary with respect
to such plan acting in such capacity), together with all Affiliates and
Associates of such Person, becomes the Beneficial Owner of 50% or more of the
Common Shares then outstanding.

          (ii) The Company may, at its option, at any time prior to the
Distribution Date, upon resolution by the Continuing Directors, exchange all or
part of the then outstanding and exercisable Rights (which shall not include
Rights that have become void pursuant to Section 7(e) hereof) for Units of
Preferred Stock at an exchange ratio specified in the following sentence, as
appropriately adjusted to reflect any stock split, stock dividend or similar
transaction occurring after the date hereof.  Subject to such adjustment, each
Right may be exchanged for that number of Units of Preferred Stock obtained by
dividing the Adjustment Spread (as defined below) by the then current market
price (determined pursuant to Section 11(d) hereof) per Unit of Preferred Stock
on the earlier of (i) the date on which any Person becomes an Acquiring Person
and (ii) the date on which a tender or exchange offer by any Person (other than
the Company, any Subsidiary of the Company, any employee benefit plan maintained
by the Company or any of its Subsidiaries or any trustee or fiduciary with
respect to such plan acting in such capacity) is first published or sent or
given within the meaning of Rule 14d-4(a) of the Exchange Act Regulations or any
successor rule, if upon

<PAGE>
 
                                      41

consummation thereof such Person would be the Beneficial Owner of 15% or more of
the shares of Company Common Stock then outstanding (such exchange ratio being
the "SECTION 34(A)(II) EXCHANGE RATIO").  The "ADJUSTMENT SPREAD" shall equal
(x) the aggregate market price on the date of such event of the number of
Adjustment Shares determined pursuant to Section 11(a)(ii), minus (y) the
Purchase Price.  Notwithstanding the foregoing, the Company may not effect such
exchange at any time after any Person (other than the Company, any Subsidiary of
the Company, any employee benefit plan maintained by the Company or any of its
Subsidiaries, or any trustee or fiduciary with respect to such plan acting in
such capacity), together with all Affiliates and Associates of such Person,
becomes the Beneficial Owner of 50% or more of the Common Shares then
outstanding.

          Notwithstanding anything contained in this Section 34(a) to the
contrary, the Company may not exchange any Rights pursuant to this Section 34(a)
unless (x) at the time of the action of the Board of Directors of the Company
approving exchange, there are then in office not less than two Continuing
Directors and (y) such exchange is approved by a majority of the Continuing
Directors then in office.

          (b) Immediately upon the action of a majority of the Continuing
Directors ordering the exchange of any Rights pursuant to Section 34(a) and
without any further action and without any notice, the right to exercise such
Rights shall terminate and the only right thereafter of a holder of such Rights
shall be to receive that number of Units of Preferred Stock equal to the number
of such Rights held by such holder multiplied by the Section 34(a)(i) Exchange
Ratio or Section 34(a)(ii) Exchange Ratio, as the case may be.  The Company
shall promptly give public notice of any such exchange; provided, however, that
the failure to give, or any defect in, such notice shall not affect the validity
of such exchange.  The Company promptly shall mail a notice of any such exchange
to all of the holders of such Rights at their last addresses as they appear upon
the registry books of the Rights Agent.  Any notice which is mailed in the
manner herein provided shall be deemed given, whether or not the holder receives
the notice.  Each such notice of exchange shall state the method by which the
exchange of Units of Preferred Stock for Rights will be effected and, in the
event of any partial exchange, the number of Rights which will be exchanged.
Any partial exchange shall be effected pro rata based on the number of Rights
(other than Rights which have become void pursuant to the provisions of Section
7(e) hereof) held by each holder of Rights.

          (c) In the event that the number of shares of Preferred Stock which
are authorized by the Company's Certificate of Incorporation but not outstanding
or reserved for issuance for purposes other than upon exercise of the Rights are
not sufficient to permit any exchange of Rights as contemplated in accordance
with this Section 34, the Company shall take all such action as may be necessary
to authorize additional shares of Preferred Stock for issuance upon exchange of
the Rights or make adequate provision to substitute (1) cash, (2) Company Common
Stock or other equity securities of the Company, (3) debt securities of

<PAGE>
 
                                      42

the Company, (4) other assets, or (5) any combination of the foregoing, having
an aggregate value equal to the Adjustment Spread, where such aggregate value
has been determined by a majority of the Continuing Directors.

          (d) The Company shall not be required to issue fractions of Units of
Preferred Stock or to distribute certificates which evidence fractional Units.
In lieu of fractional Units, the Company may pay to the registered holders of
Rights Certificates at the time such Rights are exchanged as herein provided an
amount in cash equal to the same fraction of the current market price
(determined pursuant to Section 11(d) hereof) of one Unit of Preferred Stock.

<PAGE>
 
                                      43

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed on their behalf as of the date first above written.


ATTEST:                             CELL THERAPEUTICS, INC.


By /s/ Michael J. Kennedy                  By  /s/ James A. Bianco
  ------------------------------              ----------------------------------
  Name:  Michael J. Kennedy                Name:  James A. Bianco
  Title:  Secretary                        Title:  President and Chief Executive
                                                    Officer


ATTEST:                             HARRIS TRUST COMPANY OF
                                    CALIFORNIA


By  /s/ Thomas S. Grady                    By  /s/ Cecelia A. Murphy
  ------------------------------              ----------------------------
    Name:  Thomas S. Grady                     Name:  Cecelia A. Murphy
    Title: Vice President                      Title: Trust Officer


<PAGE>
 
                                                                       EXHIBIT A
                                                                       ---------



Certificate No. ______                                  ______Rights


NOT EXERCISABLE AFTER THE EXPIRATION DATE (AS DEFINED IN THE RIGHTS AGREEMENT
REFERRED TO BELOW).  THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE
COMPANY, ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT.  UNDER CERTAIN
CIRCUMSTANCES (SPECIFIED IN THE RIGHTS AGREEMENT), RIGHTS BENEFICIALLY OWNED BY
ACQUIRING PERSONS (AS DEFINED IN THE RIGHTS AGREEMENT) OR ANY SUBSEQUENT HOLDER
OF SUCH RIGHTS MAY BECOME NULL AND VOID.  [THE RIGHTS REPRESENTED BY THIS RIGHTS
CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN
ACQUIRING PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH
TERMS ARE DEFINED IN THE RIGHTS AGREEMENT REFERRED TO BELOW).  ACCORDINGLY, THIS
RIGHTS CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND VOID IN
THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF THE RIGHTS AGREEMENT.]

                               RIGHTS CERTIFICATE
                               ------------------

                            CELL THERAPEUTICS, INC.

         This certifies that _____________________, or registered assigns, is
the registered holder of the number of Rights set forth above, each of which
entitles the registered holder thereof, subject to the terms and conditions of
the Rights Agreement dated as of November 11, 1996 (the "RIGHTS AGREEMENT";
terms defined therein are used herein with the same meaning unless otherwise
defined herein) between Cell Therapeutics, Inc., a Washington corporation (the
"COMPANY"), and Harris Trust Company of California, as Rights Agent (which term
shall include any successor Rights Agent under the Rights Agreement), to
purchase from the Company at any time after the Distribution Date and prior to
the Expiration Date at the office of the Rights Agent, one one-thousandth of a
fully paid and non-assessable share of Series C Preferred Stock, no par value
(the "PREFERRED STOCK"), of the Company at the Purchase Price initially of
$50.00 per one one-thousandth share (each such one one-thousandth of a share
being a "UNIT") of Preferred Stock, upon presentation and surrender of this
Rights Certificate with the Election to Purchase and related certificate duly
executed. The number of Rights evidenced by this Rights Certificate (and the
number of Units which may be purchased upon exercise thereof) set forth above,
and the Purchase Price per Unit set forth above shall be subject to adjustment
in certain events as provided in the Rights Agreement.

         Upon the occurrence of a Section 11(a)(ii) Event or Section 13 Event,
if the Rights evidenced by this Rights Certificate are beneficially owned by an
Acquiring Person or an Affiliate or Associate of any such Acquiring Person or,
under certain circumstances described in the Rights Agreement, a transferee of
any such Acquiring Person, Associate or Affiliate, such

<PAGE>
 
                                       2

Rights shall become null and void and no holder hereof shall have any right with
respect to such Rights from and after the occurrence of such Section 11(a)(ii)
Event.

         In certain circumstances described in the Rights Agreement, the Rights
evidenced hereby may entitle the registered holder thereof to purchase capital
stock of an entity other than the Company or receive common stock, cash or other
assets, all as provided in the Rights Agreement.

         This Rights Certificate is subject to all of the terms and conditions
of the Rights Agreement, which terms and conditions are hereby incorporated
herein by reference and made a part hereof and to which Rights Agreement
reference is hereby made for a full description of the rights, limitations of
rights, obligations, duties and immunities hereunder of the Rights Agent, the
Company and the holders of the Rights Certificates.  Copies of the Rights
Agreement are on file at the principal office of the Company and are available
from the Company upon written request.

         This Rights Certificate, with or without other Rights Certificates,
upon surrender at the office of the Rights Agent designated for such purpose,
may be exchanged for another Rights Certificate or Rights Certificates of like
tenor and date evidencing an aggregate number of Rights equal to the aggregate
number of Rights evidenced by the Rights Certificate or Rights Certificates
surrendered.  If this Rights Certificate shall be exercised in part, the
registered holder shall be entitled to receive, upon surrender hereof, another
Rights Certificate or Rights Certificates for the number of whole Rights not
exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate may be redeemed by the Company under certain circumstances
at its option at a redemption price of $.001 per Right, payable at the Company's
option in cash or in common stock of the Company, subject to adjustment in
certain events as provided in the Rights Agreement.

         No fractional shares of Preferred Stock will be issued upon the
exercise of any Right or Rights evidenced hereby (other than fractions which are
integral multiples of one one-thousandth of a share of Preferred Stock), but in
lieu thereof a cash payment will be made, as provided in the Rights Agreement.

         No holder of this Rights Certificate, as such, shall be entitled to
vote or receive dividends or be deemed for any purpose the holder of Preferred
Stock or of any other securities which may at any time be issuable on the
exercise hereof, nor shall anything contained in the Rights Agreement or herein
be construed to confer upon the holder hereof, as such, any of the rights of a
shareholder of the Company or any right to vote for the election of directors or
upon any matter submitted to shareholders at any meeting thereof, or to give or
withhold consent to any corporate action, or to receive notice of meetings or
other actions affecting shareholders

<PAGE>
 
                                       3

(except as provided in the Rights Agreement), or to receive dividends or
subscription rights, or otherwise, until the Rights evidenced by this Rights
Certificate shall have been exercised as provided in the Rights Agreement.

         This Rights Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

         WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal.  Dated as of -------- --, 1996.

ATTEST:                                 CELL THERAPEUTICS, INC.


By ____________________________          By _______________________________
   Name:                                    Name:
   Title:                                   Title:


Countersigned:


HARRIS TRUST COMPANY OF CALIFORNIA, as
Rights Agent


By ____________________________
   Name:
   Title:

<PAGE>
 
                  [Form of Reverse Side of Rights Certificate]

                               FORM OF ASSIGNMENT
                               ------------------


                  (To be executed by the registered holder if
                      such holder desires to transfer the
                              Rights Certificate.)



FOR VALUE RECEIVED
                  ------------------------------------------------------------- 

hereby sells, assigns and transfers unto --------------------------------------

- -------------------------------------------------------------------------------

(Please print name and address of transferee)

- -------------------------------------------------------------------------------
this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint _________________ Attorney,
to transfer the within Rights Certificate on the books of the within-named
Company, with full power of substitution.


Dated: ____________ __, 199_



                                        ---------------------------
                                        Signature


Signature Guaranteed:

<PAGE>
 
                                  CERTIFICATE
                                  -----------

         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1)  this Rights Certificate [  ] is [  ] is not being sold, assigned
and transferred by or on behalf of a Person who is or was an Acquiring Person or
an Affiliate or Associate of any such Acquiring Person (as such terms are
defined pursuant to the Rights Agreement); and

         (2)  after due inquiry and to the best knowledge of the undersigned, it
[  ] did [  ] did not acquire the Rights evidenced by this Rights Certificate
from any Person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate of an Acquiring Person.


Dated: _____________ __, 199_           _______________________________
                                        Signature

Signature Guaranteed:

         --------------------------------------------------------------
                                     NOTICE
                                     ------

         The signature to the foregoing Assignment and Certificate must
correspond to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.

         Signatures must be guaranteed by an approved eligible financial
institution acceptable to the Rights Agent in its sole discretion or by a
participant in the Securities Transfer Agents Medallion Program, the Stock
Exchange Medallion Program or the New York Stock Exchange Medallion Program.

         In the event the certification set forth above is not completed, the
Company will deem the beneficial owner of the Rights evidenced by this Rights
Certificate to be an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement) and, in the case of an Assignment, will affix a
legend to that effect on any Rights Certificates issued in exchange for this
Rights Certificate.

<PAGE>
 
                          FORM OF ELECTION TO PURCHASE
                          ----------------------------

                    (To be executed if the registered holder
                     desires to exercise Rights represented
                          by the Rights Certificate.)



To:  CELL THERAPEUTICS, INC.

         The undersigned hereby irrevocably elects to exercise ____________
Rights represented by this Rights Certificate to purchase the Units of Preferred
Stock issuable upon the exercise of the Rights (or such other securities of the
Company or of any other person or other property which may be issuable upon the
exercise of the Rights) and requests that certificates for such Units be issued
in the name of and delivered to:

- ------------------------------------------
(Please print name and address)

- ------------------------------------------

Please insert social security
or other identifying number:  ______________________________

         If such number of Rights shall not be all the Rights evidenced by this
Rights Certificate, a new Rights Certificate for the balance of such Rights
shall be registered in the name of and delivered to:

- ------------------------------------------
(Please print name and address)

- ------------------------------------------

Please insert social security
or other identifying number:  ____________________________

Dated:  _________ __, 199_

                                        -----------------------------------
                                        Signature
Signature Guaranteed:

<PAGE>
 
                                  CERTIFICATE
                                  -----------

         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1)  the Rights evidenced by this Rights Certificate [  ] are [  ] are
not beneficially owned by an Acquiring Person or an Affiliate or an Associate
thereof (as defined in the Rights Agreement); and

         (2)  after due inquiry and to the best knowledge of the undersigned,
the undersigned [  ] did [  ] did not acquire the Rights evidenced by this
Rights Certificate from any person who is, was or subsequently became an
Acquiring Person or an Affiliate or Associate thereof.


Dated:  _________ __, 199_              _______________________________
                                        Signature
Signature Guaranteed:

         --------------------------------------------------------------

                                     NOTICE
                                     ------

         The signature in the foregoing Election to Purchase and Certificate
must conform to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.

         Signatures must be guaranteed by an approved eligible financial
institution acceptable to the Rights Agent in its sole discretion or by a
participant in the Securities Transfer Agents Medallion Program, the Stock
Exchange Medallion Program or the New York Stock Exchange Medallion Program.

         In the event the certification set forth above is not completed, the
Company will deem the beneficial owner of the Rights evidenced by this Rights
Certificate to be an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement) and, in the case of an Assignment, will affix a
legend to that effect on any Rights Certificates issued in exchange for this
Rights Certificate.

<PAGE>
 
                                                                       EXHIBIT B
                                                                       ---------

                         SUMMARY OF RIGHTS TO PURCHASE
                                PREFERRED STOCK


          On November 11, 1996, the Board of Directors of Cell Therapeutics,
Inc. (the "COMPANY") declared a distribution of one Right for each outstanding
share of Common Stock, no par value (the "COMPANY COMMON STOCK"), to
stockholders of record at the close of business on November 21, 1996 (the
"RECORD DATE") and for each share of Company Common Stock issued (including
shares distributed from Treasury) by the Company thereafter and prior to the
Distribution Date. Each Right entitles the registered holder, subject to the
terms of the Rights Agreement (as defined below), to purchase from the Company
one one-thousandth of a share (a "UNIT") of Series C Preferred Stock, no par
value (the "PREFERRED STOCK"), at a Purchase Price of $50.00 per Unit, subject
to adjustment. The Purchase Price is payable in cash or by certified or bank
check payable to the order of the Company or by wire transfer to the account of
the Company (provided a notice of such wire transfer is given by the holder of
the related Right to the Rights Agent). The description and terms of the Rights
are set forth in a Rights Agreement between the Company and Harris Trust Company
of California as Rights Agent (the "RIGHTS AGREEMENT").

          Copies of the Rights Agreement and the Statement of Designation for
the Preferred Stock have been filed with the Securities and Exchange Commission
as exhibits to a Registration Statement on Form 8-A dated November 15, 1996 (the
"FORM 8-A").  Copies of the Rights Agreement and the Statement of Designation
are available free of charge from the Company.  This summary description of the
Rights and the Preferred Stock does not purport to be complete and is qualified
in its entirety by reference to all the provisions of the Rights Agreement and
the Statement of Designation, including the definitions therein of certain
terms, which Rights Agreement and Statement of Designation are incorporated
herein by reference.

The Rights Agreement
- --------------------

          Initially, the Rights will attach to all certificates representing
shares of outstanding Company Common Stock, and no separate Rights Statements
will be distributed.  The Rights will separate from the Company Common Stock and
the "DISTRIBUTION DATE" will occur upon the earlier of (i) 10 days following a
public announcement (the date of such announcement being the "STOCK ACQUISITION
DATE") that a person or group of affiliated or associated persons (other than
the Company, any subsidiary of the Company or any employee benefit plan of the
Company or such subsidiary) (an "ACQUIRING PERSON") has acquired, obtained the
right to acquire, or otherwise obtained beneficial ownership of 15% or more of
the then outstanding shares of Company Common Stock, and (ii) 10 business days
(or such later date as may be determined by action of the Board of Directors
prior to such time as any person becomes an Acquiring Person) following the
commencement of a tender offer or

<PAGE>
 
                                       2

exchange offer that would result in a person or group beneficially owning 15% or
more of the then outstanding shares of Company Common Stock.  Until the
Distribution Date, (i) the Rights will be evidenced by Company Common Stock
certificates and will be transferred with and only with such Company Common
Stock certificates, (ii) new Company Common Stock certificates issued after the
Record Date (also including shares distributed from Treasury) will contain a
notation incorporating the Rights Agreement by reference and (iii) the surrender
for transfer of any certificates representing outstanding Company Common Stock
will also constitute the transfer of the Rights associated with the Company
Common Stock represented by such certificates.

          The Rights are not exercisable until the Distribution Date and will
expire at the close of business on the tenth anniversary of the Rights Agreement
unless earlier redeemed by the Company as described below.

          As soon as practicable after the Distribution Date, Rights Statements
will be mailed to holders of record of Company Common Stock as of the close of
business on the Distribution Date and, thereafter, the separate Rights
Statements alone will represent the Rights.

          In the event that (i) the Company is the surviving corporation in a
merger with an Acquiring Person and shares of Company Common Stock shall remain
outstanding, (ii) a Person becomes an Acquiring Person, (iii) an Acquiring
Person engages in one or more "self-dealing" transactions as set forth in the
Rights Agreement, or (iv) during such time as there is an Acquiring Person, an
event occurs which results in such Acquiring Person's ownership interest being
increased by more than 1% (e.g., by means of a recapitalization) (each such
                           ----                                            
event being a "SECTION 11(a)(ii) EVENT"), then, in each such case, each holder
                                          ----                                
of a Right will thereafter have the right to receive, upon exercise, Units of
Preferred Stock (or, in certain circumstances, Company Common Stock, cash,
property or other securities of the Company) having a value equal to two times
the exercise price of the Right.  The exercise price is the Purchase Price
multiplied by the number of Units of Preferred Stock issuable upon exercise of a
Right prior to the events described in this paragraph.  Notwithstanding any of
the foregoing, following the occurrence of any of the events set forth in this
paragraph, all Rights that are, or (under certain circumstances specified in the
Rights Agreement) were, beneficially owned by any Acquiring Person will be null
and void.

          In the event that, at any time following the Stock Acquisition Date,
(i) the Company is acquired in a merger or other business combination
transaction and the Company is not the surviving corporation (other than a
merger described in the preceding paragraph), (ii) any Person consolidates or
merges with the Company and all or part of the Company Common Stock is converted
or exchanged for securities, cash or property of any other Person or (iii) 50%
or more of the Company's assets or earning power is sold or transferred, each
holder of a Right (except Rights which previously have been voided as described
above)

<PAGE>
 
                                       3

shall thereafter have the right to receive, upon exercise, common stock of the
ultimate parent of the Acquiring Person having a value equal to two times the
exercise price of the Right.

          The Purchase Price payable, and the number of Units of Preferred Stock
issuable, upon exercise of the Rights are subject to adjustment from time to
time to prevent dilution (i) in the event of a stock dividend on, or a
subdivision, combination or reclassification of, the Preferred Stock, (ii) if
holders of the Preferred Stock are granted certain rights or warrants to
subscribe for Preferred Stock or convertible securities at less than the current
market price of the Preferred Stock, or (iii) upon the distribution to the
holders of the Preferred Stock of evidences of indebtedness, cash or assets
(excluding regular quarterly cash dividends) or of subscription rights or
warrants (other than those referred to above).

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price.  The Company is not required to issue fractional Units.  In lieu thereof,
an adjustment in cash may be made based on the market price of the Preferred
Stock prior to the date of exercise.

          At any time until ten business days following the Stock Acquisition
Date, a majority of the Continuing Directors may redeem the Rights in whole, but
not in part, at a price of $.001 per Right (subject to adjustment in certain
events) (the "REDEMPTION PRICE"), payable, at the election of such majority of
the Continuing Directors, in cash or shares of Company Common Stock.
Immediately upon the action of a majority of the Continuing Directors ordering
the redemption of the Rights, the Rights will terminate and the only right of
the holders of Rights will be to receive the Redemption Price.

          The Board of Directors, at its option, may exchange each Right for (i)
one Unit of Preferred Stock or (ii) such number of Units of Preferred Stock as
will equal (x) the difference between the aggregate market price of the number
of Units of Preferred Stock to be received upon a Section 11(a)(ii) Event and
the purchase price set forth in the Rights Agreement, divided by (y) the market
price per Unit of Preferred Stock upon a Section 11(a)(ii) Event.

          Until a Right is exercised, the holder thereof, as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive dividends.  While the distribution of the Rights will not
be taxable to stockholders or to the Company, stockholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Units of Preferred Stock (or other consideration).

          Any of the provisions of the Rights Agreement may be amended without
the approval of the holders of Company Common Stock at any time prior to the
Distribution

<PAGE>
 
                                       4

Date.  After the Distribution Date, the provisions of the Rights Agreement may
be amended in order to cure any ambiguity, defect or inconsistency, to make
changes which do not adversely affect the interests of holders of Rights
(excluding the interests of any Acquiring Person), or to shorten or lengthen any
time period under the Rights Agreement; provided, however, that no amendment to
                                        --------  -------                      
adjust the time period governing redemption shall be made at such time as the
Rights are not redeemable.  Supplements or amendments to the Rights Agreement
may be made only if approved by a majority of Continuing Directors.

Description of Preferred Stock
- ------------------------------

          The Units of Preferred Stock that may be acquired upon exercise of the
Rights will be nonredeemable and subordinate to any other shares of preferred
stock that may be issued by the Company.

          Each Unit of Preferred Stock will have a minimum preferential
quarterly dividend of $1.00 per Unit, when, as and if determined by the Board of
Directors, or any higher per share dividend declared on the Company Common
Stock.

          In the event of liquidation, the holder of a Unit of Preferred Stock
will receive a preferred liquidation payment equal to the greater of $1.00 per
Unit and the per share amount paid in respect of a share of Company Common
Stock.

          Each Unit of Preferred Stock will have one vote, voting together with
the Company Common Stock.  The holders of Units of Preferred Stock, voting as a
separate class, shall be entitled to elect two directors if dividends on the
Preferred Stock are in arrears for six fiscal quarters.

          In the event of any merger, consolidation or other transaction in
which shares of Company Common Stock are exchanged, each Unit of Preferred Stock
will be entitled to receive the per share amount paid in respect of each share
of Company Common Stock.

          The rights of holders of the Preferred Stock to dividends, liquidation
and voting, and in the event of mergers and consolidations, are protected by
customary antidilution provisions.

          Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the economic value of one Unit of Preferred Stock that may be
acquired upon the exercise of each Right is expected to approximate the economic
value of one share of Company Common Stock.

<PAGE>
 
                                                                       EXHIBIT C
                                                                       ---------



                            STATEMENT OF DESIGNATION
                       OF THE VOTING POWERS, DESIGNATION,
                    PREFERENCES AND RELATIVE, PARTICIPATING,
              OPTIONAL OR OTHER SPECIAL RIGHTS AND QUALIFICATIONS,
                      LIMITATIONS AND RESTRICTIONS OF THE
                            SERIES C PREFERRED STOCK

                      -----------------------------------

                     Pursuant to Section 23B.06.020 of the
                      Washington Business Corporation Act
                      -----------------------------------


          I, James A. Bianco. M.D., President and Chief Executive Officer of
Cell Therapeutics, Inc., a corporation organized and existing under the Business
Corporation Act of the State of Washington (the "CORPORATION"), DO HEREBY
CERTIFY:

          that, pursuant to authority conferred upon the Board of Directors of
the Corporation by its Articles of Incorporation (the "ARTICLES"), and, pursuant
to the provisions of Section 23B.06.020 of the Washington Business Corporation
Act, said Board of Directors, at a duly called meeting held on November 7, 1996,
at which a quorum was present and acted throughout, adopted the following
resolutions, which resolutions remain in full force and effect on the date
hereof creating a series of 100,000 shares of Preferred Stock, no par value,
designated as Series C Preferred Stock (the "SERIES C PREFERRED STOCK") out of
the class of 10,000,000 shares of preferred stock, no par value (the "PREFERRED
STOCK"):

          RESOLVED, that pursuant to the authority vested in the Board of
Directors in accordance with the provisions of the Articles, the Board of
Directors does hereby create, authorize and provide for the issuance of the
Series C Preferred Stock having the voting powers, designation, relative,
participating, optional and other special rights, preferences, and
qualifications, limitations and restrictions thereof that are set forth as
follows:

          Section 1.  Designation and Amount.  The shares of such series shall
                      ----------------------                                  
be designated as "Series C Preferred Stock" and the number of shares
constituting such series shall be 100,000.

          Section 2.  Dividends and Distributions.  (A)  Subject to the prior
                      ---------------------------                            
and superior rights of the holders of any shares of any other series of
Preferred Stock or any other shares of preferred stock of the Corporation
ranking prior and superior to the shares of Series C

<PAGE>
 
                                       2

Preferred Stock with respect to dividends, each holder of one one-thousandth
(1/1,000) of a share (a "UNIT") of Series C Preferred Stock shall be entitled to
receive, when, as and if declared by the Board of Directors out of funds legally
available for that purpose, (i) quarterly dividends payable in cash on the last
day of March, June, September and December in each year (each such date being a
"QUARTERLY DIVIDEND PAYMENT DATE"), commencing on the first Quarterly Dividend
Payment Date after the first issuance of such Unit of Series C Preferred Stock,
in an amount per Unit (rounded to the nearest cent) equal to the greater of (a)
$1.00 or (b) subject to the provision for adjustment hereinafter set forth, the
aggregate per share amount of all cash dividends declared on shares of the
Common Stock since the immediately preceding Quarterly Dividend Payment Date,
or, with respect to the first Quarterly Dividend Payment Date, since the first
issuance of a Unit of Series C Preferred Stock, and (ii) subject to the
provision for adjustment hereinafter set forth, quarterly distributions (payable
in kind) on each Quarterly Dividend Payment Date in an amount per Unit equal to
the aggregate per share amount of all non-cash dividends or other distributions
(other than a dividend payable in shares of Common Stock or a subdivision of the
outstanding shares of Common Stock, by reclassification or otherwise) declared
on shares of Common Stock since the immediately preceding Quarterly Dividend
Payment Date, or with respect to the first Quarterly Dividend Payment Date,
since the first issuance of a Unit of Series C Preferred Stock.  In the event
that the Corporation shall at any time after November 8, 1996 (the "RIGHTS
DECLARATION DATE") (i) declare any dividend on outstanding shares of Common
Stock payable in shares of Common Stock, (ii) subdivide outstanding shares of
Common Stock or (iii) combine outstanding shares of Common Stock into a smaller
number of shares, then in each such case the amount to which the holder of a
Unit of Series C Preferred Stock was entitled immediately prior to such event
pursuant to the preceding sentence shall be adjusted by multiplying such amount
by a fraction the numerator of which shall be the number of shares of Common
Stock that are outstanding immediately after such event and the denominator of
which shall be the number of shares of Common Stock that were outstanding
immediately prior to such event.

          (B) The Corporation shall declare a dividend or distribution on Units
of Series C Preferred Stock as provided in paragraph (A) above immediately after
it declares a dividend or distribution on the shares of Common Stock (other than
a dividend payable in shares of Common Stock); provided, however, that, in the
                                               --------  -------              
event no dividend or distribution shall have been declared on the Common Stock
during the period between any Quarterly Dividend Payment Date and the next
subsequent Quarterly Dividend Payment Date, a dividend of $1.00 per Unit on the
Series C Preferred Stock shall nevertheless be payable on such subsequent
Quarterly Dividend Payment Date.

          (C) Dividends shall begin to accrue and shall be cumulative on each
outstanding Unit of Series C Preferred Stock from the Quarterly Dividend Payment
Date next preceding the date of issuance of such Unit of Series C Preferred
Stock, unless the date of issuance of such Unit is prior to the record date for
the first Quarterly Dividend Payment

<PAGE>
 
                                       3

Date, in which case, dividends on such Unit shall begin to accrue from the date
of issuance of such Unit, or unless the date of issuance is a Quarterly Dividend
Payment Date or is a date after the record date for the determination of holders
of Units of Series C Preferred Stock entitled to receive a quarterly dividend
and before such Quarterly Dividend Payment Date, in either of which events such
dividends shall begin to accrue and be cumulative from such Quarterly Dividend
Payment Date.  Accrued but unpaid dividends shall not bear interest. Dividends
paid on Units of Series C Preferred Stock in an amount less than the aggregate
amount of all such dividends at the time accrued and payable on such Units shall
be allocated pro rata on a unit-by-unit basis among all Units of Series C
Preferred Stock at the time outstanding.  The Board of Directors may fix a
record date for the determination of holders of Units of Series C Preferred
Stock entitled to receive payment of a dividend or distribution declared
thereon, which record date shall be no more than 30 days prior to the date fixed
for the payment thereof.

          Section 3.  Voting Rights.  The holders of Units of Series C Preferred
                      -------------                                             
Stock shall have the following voting rights:

     (A) Subject to the provision for adjustment hereinafter set forth, each
Unit of Series C Preferred Stock shall entitle the holder thereof to one vote on
all matters submitted to a vote of the stockholders of the Corporation.  In the
event the Corporation shall at any time after the Rights Declaration Date (i)
declare any dividend on outstanding shares of Common Stock payable in shares of
Common Stock, (ii) subdivide outstanding shares of Common Stock or (iii) combine
the outstanding shares of Common Stock into a smaller number of shares, then in
each such case the number of votes per Unit to which holders of Units of Series
C Preferred Stock were entitled immediately prior to such event shall be
adjusted by multiplying such number by a fraction the numerator of which shall
be the number of shares of Common Stock outstanding immediately after such event
and the denominator of which shall be the number of shares of Common Stock that
were outstanding immediately prior to such event.

     (B) Except as otherwise provided herein or by law, the holders of Units of
Series C Preferred Stock and the holders of shares of Common Stock shall vote
together as one class on all matters submitted to a vote of stockholders of the
Corporation.

     (C) (i)  If at any time dividends on any Units of Series C Preferred Stock
shall be in arrears in an amount equal to six quarterly dividends thereon, then
during the period (a "DEFAULT PERIOD") from the occurrence of such event until
such time as all accrued and unpaid dividends for all previous quarterly
dividend periods and for the current quarterly dividend period on all Units of
Series C Preferred Stock then outstanding shall have been declared and paid or
set apart for payment, all holders of Units of Series C Preferred Stock, voting
separately as a class, shall have the right to elect two Directors.

<PAGE>
 
                                       4

     (ii)  During any default period, such voting rights of the holders of Units
of Series C Preferred Stock may be exercised initially at a special meeting
called pursuant to subparagraph (iii) of this Section 3(C) or at any annual
meeting of stockholders, and thereafter at annual meetings of stockholders,
provided that neither such voting rights nor any right of the holders of Units
of Series C Preferred Stock to increase, in certain cases, the authorized number
of Directors may be exercised at any meeting unless one-third of the outstanding
Units of Preferred Stock shall be present at such meeting in person or by proxy.
The absence of a quorum of the holders of Common Stock shall not affect the
exercise by the holders of Units of Series C Preferred Stock of such rights.  At
any meeting at which the holders of Units of Series C Preferred Stock shall
exercise such voting rights initially during an existing default period, they
shall have the right, voting separately as a class, to elect Directors to fill
up to two vacancies in the Board of Directors, if any such vacancies may then
exist, or, if such right is exercised at an annual meeting, to elect two
Directors.  If the number which may be so elected at any special meeting does
not amount to the required number, the holders of the Series C Preferred Stock
shall have the right to make such increase in the number of Directors as shall
be necessary to permit the election by them of the required number.  After the
holders of Units of Series C Preferred Stock shall have exercised their right to
elect Directors during any default period, the number of Directors shall not be
increased or decreased except as approved by a vote of the holders of Units of
Series C Preferred Stock as herein provided or pursuant to the rights of any
equity securities ranking senior to the Series C Preferred Stock.

     (iii)  Unless the holders of Series C Preferred Stock shall, during an
existing default period, have previously exercised their right to elect
Directors, the Board of Directors may order, or any stockholder or stockholders
owning in the aggregate not less than 25% of the total number of the Units of
Series C Preferred Stock outstanding may request, the calling of a special
meeting of the holders of Units of Series C Preferred Stock, which meeting shall
thereupon be called by the Secretary of the Corporation.  Notice of such meeting
and of any annual meeting at which holders of Units of Series C Preferred Stock
are entitled to vote pursuant to this paragraph (C)(iii) shall be given to each
holder of record of Units of Series C Preferred Stock by mailing a copy of such
notice to him at his last address as the same appears on the books of the
Corporation.  Such meeting shall be called for a time not earlier than 20 days
and not later then 60 days after such order or request or in default of the
calling of such meeting within 60 days after such order or request, such meeting
may be called on similar notice by any stockholder or stockholders owning in the
aggregate not less than 25% of the total number of outstanding Units of Series C
Preferred Stock.  Notwithstanding the provisions of this paragraph (C)(iii), no
such special meeting shall be called during the 60 days immediately preceding
the date fixed for the next annual meeting of the stockholders.

     (iv)  During any default period, the holders of shares of Common Stock and
Units of Series C Preferred Stock, and other classes or series of stock of the
Corporation, if applicable, shall continue to be entitled to elect all the
Directors until holders of the Units of

<PAGE>
 
                                       5

Series C Preferred Stock shall have exercised their right to elect two Directors
voting as a separate class, after the exercise of which right (x) the Directors
so elected by the holders of Units of Series C Preferred Stock shall continue in
office until their successors shall have been elected by such holders or until
the expiration of the default period, and (y) any vacancy in the Board of
Directors may (except as provided in paragraph (C)(ii) of this Section 3) be
filled by vote of a majority of the remaining Directors theretofore elected by
the holders of the class of capital stock which elected the Director whose
office shall have become vacant.  References in this paragraph (C) to Directors
elected by the holders of a particular class of capital stock shall include
Directors elected by such Directors to fill vacancies as provided in clause (y)
of the foregoing sentence.

     (v)  Immediately upon the expiration of a default period, (x) the right of
the holders of Units of Series C Preferred Stock as a separate class to elect
Directors shall cease, (y) the term of any Directors elected by the holders of
Units of Series C Preferred Stock as a separate class shall terminate, and (z)
the number of Directors shall be such number as may be provided for in the
Articles or by-laws irrespective of any increase made pursuant to the provisions
of paragraph (C)(ii) of this Section 3 (such number being subject, however, to
change thereafter in any manner provided by law or in the Articles or by-laws).
Any vacancies in the Board of Directors effected by the provisions of clauses
(y) and (z) in the preceding sentence may be filled by a majority of the
remaining Directors.

     (vi)  The provisions of this paragraph (C) shall govern the election of
Directors by holders of Units of Preferred Stock during any default period
notwithstanding any provisions of the Articles to the contrary, including,
without limitation, the provisions of Article THIRD of the Articles.

          (D) Except as set forth herein, holders of Units of Series C Preferred
Stock shall have no special voting rights and their consents shall not be
required (except to the extent they are entitled to vote with holders of shares
of Common Stock as set forth herein) for taking any corporate action.

          Section 4.  Certain Restrictions.  (A)  Whenever quarterly dividends
                      --------------------                                    
or other dividends or distributions payable on Units of Series C Preferred Stock
as provided in Section 2 are in arrears, thereafter and until all accrued and
unpaid dividends and distributions, whether or not declared, on outstanding
Units of Series C Preferred Stock shall have been paid in full, the Corporation
shall not

          (i)  declare or pay dividends on, make any other distributions on, or
     redeem or purchase or otherwise acquire for consideration any shares of
     junior stock;

          (ii)  declare or pay dividends on or make any other distributions on
     any shares of parity stock, except dividends paid ratably on Units of
     Series C Preferred Stock

<PAGE>
 
                                       6

     and shares of all such parity stock on which dividends are payable or in
     arrears in proportion to the total amounts to which the holders of such
     Units and all such shares are then entitled;

          (iii)  redeem or purchase or otherwise acquire for consideration
     shares of any parity stock, provided, however, that the Corporation may at
                                 --------  -------                             
     any time redeem, purchase or otherwise acquire shares of any such parity
     stock in exchange for shares of any junior stock;

          (iv)  purchase or otherwise acquire for consideration any Units of
     Series C Preferred Stock, except in accordance with a purchase offer made
     in writing or by publication (as determined by the Board of Directors) to
     all holders of such Units.

          (B) The Corporation shall not permit any subsidiary of the Corporation
to purchase or otherwise acquire for consideration any shares of stock of the
Corporation unless the Corporation could, under paragraph (A) of this Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

          Section 5.  Reacquired Shares.  Any Units of Series C Preferred Stock
                      -----------------                                        
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and cancelled promptly after the acquisition thereof.  All such
Units shall, upon their cancellation, become authorized but unissued Units of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
to be created by resolution or resolutions of the Board of Directors, subject to
the conditions and restrictions on issuance set forth herein.

          Section 6.  Liquidation, Dissolution or Winding Up.  (A)  Upon any
                      --------------------------------------                
voluntary or involuntary liquidation, dissolution or winding up of the
Corporation, no distribution shall be made (i) to the holders of shares of
junior stock unless the holders of Units of Series C Preferred Stock shall have
received, subject to adjustment as hereinafter provided in paragraph (B), the
greater of either (a) $1.00 per Unit plus an amount equal to accrued and unpaid
dividends and distributions thereon, whether or not earned or declared, to the
date of such payment, or (b) the amount equal to the aggregate per share amount
to be distributed to holders of shares of Common Stock, or (ii) to the holders
of shares of parity stock, unless simultaneously therewith distributions are
made ratably on Units of Series C Preferred Stock and all other shares of such
parity stock in proportion to the total amounts to which the holders of Units of
Series C Preferred Stock are entitled under clause (i)(a) of this sentence and
to which the holders of shares of such parity stock are entitled, in each case
upon such liquidation, dissolution or winding up.

          (B) In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare any dividend on outstanding shares of Common Stock
payable in shares of Common Stock, (ii) subdivide outstanding shares of Common
Stock, or (iii)

<PAGE>
 
                                       7

combine outstanding shares of Common Stock into a smaller number of shares, then
in each such case the aggregate amount to which holders of Units of Series C
Preferred Stock were entitled immediately prior to such event pursuant to clause
(i)(b) of paragraph (A) of this Section 6 shall be adjusted by multiplying such
amount by a fraction the numerator of which shall be the number of shares of
Common Stock that are outstanding immediately after such event and the
denominator of which shall be the number of shares of Common Stock that were
outstanding immediately prior to such event.

          Section 7.  Consolidation, Merger, etc.  In case the Corporation shall
                      --------------------------                                
enter into any consolidation, merger, combination or other transaction in which
the shares of common stock are exchanged for or converted into other stock or
securities, cash and/or any other property, then in any such case Units of
Series C Preferred Stock shall at the same time be similarly exchanged for or
converted into an amount per Unit (subject to the provision for adjustment
hereinafter set forth) equal to the aggregate amount of stock, securities, cash
and/or any other property (payable in kind), as the case may be, into which or
for which each share of Common Stock is converted or exchanged.  In the event
the Corporation shall at any time after the Rights Declaration Date (i) declare
any dividend on outstanding shares of Common Stock payable in shares of Common
Stock, (ii) subdivide outstanding shares of Common Stock, or (iii) combine
outstanding Common Stock into a smaller number of shares, then in each such case
the amount set forth in the immediately preceding sentence with respect to the
exchange or conversion of Units of Series C Preferred Stock shall be adjusted by
multiplying such amount by a fraction the numerator of which shall be the number
of shares of Common Stock that are outstanding immediately after such event and
the denominator of which shall be the number of shares of Common Stock that were
outstanding immediately prior to such event.

          Section 8.  Redemption.  The Units of Series C Preferred Stock shall
                      ----------                                              
not be redeemable.

          Section 9.  Ranking.  The Units of Series C Preferred Stock shall rank
                      -------                                                   
junior to all other series of the Preferred Stock and to any other class of
preferred stock that hereafter may be issued by the Corporation as to the
payment of dividends and the distribution of assets, unless the terms of any
such series or class shall provide otherwise.

          Section 10.  Amendment.  The Articles, including, without limitation,
                       ---------                                               
this resolution, shall not hereafter be amended, either directly or indirectly,
or through merger or consolidation with another corporations in any manner that
would alter or change the powers, preferences or special rights of the Series C
Preferred Stock so as to affect them adversely without the affirmative vote of
the holders of a majority or more of the outstanding Units of Series C Preferred
Stock, voting separately as a class.

<PAGE>
 
                                       8

          Section 11.  Fractional Shares.  The Series C Preferred Stock may be
                       -----------------                                      
issued in Units or other fractions of a share, which Units or fractions shall
entitle the holder, in proportion to such holder's fractional shares, to
exercise voting rights, receive dividends, participate in distributions and to
have the benefit of all other rights of holders of Series C Preferred Stock.

          Section 12.  Certain Definitions.  As used herein with respect to the
                       -------------------                                     
Series C Preferred Stock, the following terms shall have the following meanings:

          (A) The term "COMMON STOCK" shall mean the class of stock designated
as the common stock, no par value, of the Corporation at the date hereof or any
other class of stock resulting from successive changes or reclassification of
such common stock.

          (B) The term "JUNIOR STOCK" (i) as used in Section 4, shall mean the
Common Stock and any other class or series of capital stock of the Corporation
hereafter authorized or issued over which the Series C Preferred Stock has
preference or priority as to the payment of dividends and (ii) as used in
Section 6, shall mean the Common Stock and any other class or series of capital
stock of the Corporation over which the Series C Preferred Stock has preference
or priority in the distribution of assets on any liquidation, dissolution or
winding up of the Corporation.

          (C) The term "PARITY STOCK" (i) as used in Section 4, shall mean any
class or series of stock of the Corporation hereafter authorized or issued
ranking pari passu with the Series C Preferred Stock as to the payment of
        ---- -----                                                       
dividends and (ii) as used in Section 6, shall mean any class or series of
capital stock ranking pari passu with the Series C Preferred Stock in the
                      ---- -----                                         
distribution of assets on any liquidation, dissolution or winding up of the
Corporation.

<PAGE>
 
                                       9

          IN WITNESS WHEREOF, Cell Therapeutics, Inc. has caused this Statement
to be signed by its President and Chief Executive Officer and attested by its
Secretary this 11th day of November, 1996.

                                            CELL THERAPEUTICS, INC.



                                           By  /s/ James A. Bianco
                                              ------------------------------



Attest:

 
/s/ Michael J. Kennedy
- -----------------------------