Document:

<PAGE>   1
----------------                                               -----------------
CERTIFICATE NO.                                                    SHARES
INET                            [LOGO]INSTINET
COMMON STOCK                                                     COMMON STOCK
----------------                                               -----------------

                                             SEE REVERSE FOR CERTAIN DEFINITIONS

                                                               CUSIP 457750 10 7

                          INSTINET GROUP INCORPORATED

              INCORPORATED UNDER THE LAW OF THE STATE OF DELAWARE

--------------------------------------------------------------------------------
THIS CERTIFIES THAT

IS THE OWNER OF
--------------------------------------------------------------------------------
FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK $0.01 PAR VALUE PER SHARE OF
                          INSTINET GROUP INCORPORATED

transferable on the books of the Corporation by the holder hereof or by duly
authorized attorney, upon surrender of this certificate properly endorsed. This
certificate is not valid unless countersigned and registered by the transfer
agent and registrar.

IN WITNESS WHEREOF, Instinet Group Incorporated has caused this certificate to
be executed by the facimile signatures of its duly authorized officers and has
caused a facsimile of its corporate seal to be hereunto affixed.

DATED:

                                      SEAL

SECRETARY AND GENERAL COUNSEL                            CHIEF EXECUTIVE OFFICER

Countersigned and Registered:

                          MELLON INVESTOR SERVICES LLC
                                                                  Transfer Agent
                                                                  and Registrar,

By
                                                            Authorized Signature
<PAGE>   2
                          INSTINET GROUP INCORPORATED

This certificate also evidences and entitles the holder hereof to certain Rights
as set forth in the Rights Agreement between Instinet Group Incorporated (the
"Company") and the Rights Agent thereunder, as it may from time to time be
amended or supplemented in accordance with its terms (the "Rights Agreement"),
the terms of which are hereby incorporated herein by reference and a copy of
which is on file at the principal offices of the Company. 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 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 an 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.

The following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

<TABLE>
<S>                                          <C>
TEN COM - as tenants in common               UNIF TRAN MIN ACT-__________  Custodian __________
TEN ENT - as tenants by the entireties                           (Cust)                (Minor)
JT TEN  - as joint tenants with right of
  OR      survivorship and not as tenants                      under Uniform Transfers to Minors Act
          in common
JT TEN                                                                     _____________________________________
WROS                                                                           (State)
</TABLE>

    Additional abbreviations may also be used though not in the above list.

FOR VALUE RECEIVED, ______________________________ hereby sell, assign and
transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
    IDENTIFYING NUMBER OF ASSIGNEE
_______________________________________

_______________________________________

________________________________________________________________________________
   (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

________________________________________________________________________________

________________________________________________________________________________

_________________________________________________________________Shares of the
Common Stock evidenced by this Certificate, and do hereby irrevocably constitute
and appoint

_________________________________________________________________, Attorney to
transfer the said shares on the books of Instinet Group Incorporated with full
power of substitution.

Dated _______________________

                                             ___________________________________
                                             Signature

                                             ___________________________________
                                             Signature

in the presence of __________________________________

NOTE:  THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME OF THE
STOCKHOLDER(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

SIGNATURE GUARANTEED
MEDALLION GUARANTEED

_____________________________________
Authorized Signature
(Signature Guarantee Program Name)

Signature Guarantee by (must be by a
member of the Stock Exchanges Medallion
Program or the New York Stock Exchange,
Inc. Signature Program in accordance
with Securities and Exchange Commission
Rule 17Ad-15)

BANKNOTE CORPORATION OF AMERICA, INC. - WALL STREET, NYC - BROWNS SUMMIT, NC -
INSTINET GROUP INCORPORATED - 1-104017-942 - PROOF #2 - 8:41 AM - 4/23/01 - SMS<PAGE>   1

                                                                     Exhibit 4.4

================================================================================

                           INSTINET GROUP INCORPORATED

                                       and

                      [MELLON INVESTOR SERVICES LLC],

                                  Rights Agent

                                Rights Agreement

                            Dated as of May ___, 2001

================================================================================
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
Section                                                                       Page
-------                                                                       ----
<S>                                                                           <C>
Section 1.  Certain Definitions.........................................       1

Section 2.  Appointment of Rights Agent.................................       5

Section 3.  Issuance of Rights Certificates.............................       6

Section 4.  Form of Rights Certificates.................................       7

Section 5.  Countersignature and Registration...........................       8

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......................................................       9

Section 8.  Cancellation of Rights Certificates.........................      11

Section 9.  Reservation and Availability of Capital Stock...............      11

Section 10. Preferred Stock Record Date.................................      13

Section 11. Adjustment of Purchase Price, Number and Kind of Shares
            or Number of Rights.........................................      13

Section 12. Certificate of Adjusted Purchase Price or Number of
            Shares......................................................      20

Section 13. Consolidation, Merger or Sale or Transfer of Assets,
            Cash Flow or Earning Power..................................      21

Section 14. Fractional Rights and Fractional Shares.....................      23

Section 15. Rights of Action............................................      24

Section 16. Agreement of Rights Holders.................................      25

Section 17. Rights Certificate Holder Not Deemed a Stockholder..........      25

Section 18. Concerning the Rights Agent.................................      26

Section 19. Merger or Consolidation or Change of Name of Rights
            Agent.......................................................      26

Section 20. Duties of Rights Agent......................................      27

Section 21. Change of Rights Agent......................................      29

Section 22. Issuance of New Rights Certificates.........................      30

Section 23. Redemption and Termination..................................      30

Section 24. Exchange....................................................      31

Section 25. Notice of Certain Events....................................      32

Section 26. Notices.....................................................      33

Section 27. Supplements and Amendments..................................      34

Section 28. Successors..................................................      34
</TABLE>

                                       i
<PAGE>   3
<TABLE>
<CAPTION>
Section                                                                       Page
-------                                                                       ----
<S>                                                                           <C>
Section 29. Determinations and Actions by the Board, etc................      34

Section 30. Benefits of this Agreement..................................      35

Section 31. Severability................................................      35

Section 32. Governing Law...............................................      35

Section 33. Counterparts................................................      35

Section 34. Descriptive Headings........................................      35
</TABLE>

EXHIBITS

Exhibit A -- Form of Certificate of Designation, Preferences and Rights
Exhibit B -- Form of Rights Certificates
Exhibit C -- Form of Summary of Rights

                                       ii
<PAGE>   4
                                RIGHTS AGREEMENT

      RIGHTS AGREEMENT, dated as of May __, 2001 (the "Agreement"), between
Instinet Group Incorporated, a Delaware corporation (the "Company"), and Mellon
Investor Services LLC, a New Jersey limited liability company (the "Rights
Agent").

                               W I T N E S S E T H

            WHEREAS, on May __, 2001, the Board of Directors of the Company (the
"Board") authorized the issuance and distribution of one Right (as hereinafter
defined) for each share of Common Stock, par value $0.01 per share, outstanding
at the close of business on the date of this Agreement (the "Record Date"), and
has authorized the issuance of one Right (as such number may hereinafter be
adjusted pursuant to the provisions of Section 11(p) hereof) for each share of
Common Stock of the Company issued between the Record Date (whether originally
issued or delivered from the Company's treasury) and the earliest of the Close
of Business on the Distribution Date, the Redemption Date and the Close of
Business on the Final Expiration Date (as such terms are hereinafter defined)
each Right initially representing the right to purchase one one-hundredth of a
share of Series A Junior Participating Preferred Stock of the Company (the
"Preferred Stock") having the rights, powers and preferences set forth in the
form of Certificate of Designation, Preferences and Rights attached hereto as
Exhibit A, upon the terms and subject to the conditions hereinafter set forth
(the "Rights"); provided, however, that Rights may be issued with respect to
shares of Common Stock that shall become outstanding after the Distribution Date
and prior to the earlier of the Redemption Date and the Close of Business on the
Final Expiration Date in accordance with the provisions of Section 22 of the
Agreement;

            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, together
with all Associates and Affiliates of such Person, shall be the Beneficial Owner
of 15%, but shall not include (i) any Exempted Entity, (ii) the Company, (iii)
any Subsidiary of the Company, (iv) any employee benefit plan of the Company, or
of any Subsidiary of the Company, or any Person or entity organized, appointed
or established by the Company for or pursuant to the terms of any such plan, or
(v) any Person who becomes the Beneficial Owner of fifteen percent (15%) or more
of the shares of Common Stock then outstanding as a result of a reduction in the
number of shares of Common Stock outstanding due to the repurchase of shares of
Common Stock by the Company unless and until such Person, after becoming aware
that such Person has become the Beneficial Owner of fifteen percent (15%) or
more of the then outstanding shares of Common Stock, acquires beneficial
ownership of additional shares of Common Stock representing one percent (1%) or
more of the shares of Common Stock then outstanding, or (vi) any such Person who
has reported or is required to report such ownership (but less than 20%) on
Schedule 13G under the Securities and Exchange Act of 1934, as amended and in
effect on the date of the Agreement (the "Exchange Act") (or any comparable or
successor report) or on Schedule 13D
<PAGE>   5
under the Exchange Act (or any comparable or successor report) which Schedule
13D does not state any intention to or reserve the right to control or influence
the management or policies of the Company or engage in any of the actions
specified in Item 4 of such schedule (other than the disposition of the Common
Stock) and, within 10 Business Days of being requested by the Company to advise
it regarding the same, certifies to the Company that such Person acquired shares
of Common Stock in excess of 14.9% inadvertently or without knowledge of the
terms of the Rights and who, together with all Associates and Affiliates,
thereafter does not acquire additional shares of Common Stock while the
Beneficial Owner of 15% or more of the shares of Common Stock then outstanding;
provided, however, that if the Person requested to so certify fails to do so
within 10 Business Days, then such Person shall become an Acquiring Person
immediately after such 10-Business-Day period.

            (b) "Act" shall mean the Securities Act of 1933.

            (c) "Adjustment Shares" shall have the meaning set forth in Section
11(a)(ii) hereof.

            (d) "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Exchange Act.

            (e) A Person shall be deemed the "Beneficial Owner" of, and shall be
deemed to "beneficially own," any securities:

            (i) 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) 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 a Person shall not be deemed the "Beneficial
Owner" of, or to "beneficially own," (A) securities tendered pursuant to a
tender or exchange offer made by such Person or any of such Person's Affiliates
or Associates until such tendered securities are accepted for purchase or
exchange, (B) securities issuable upon exercise of Rights at any time prior to
the occurrence of a Triggering Event (as hereinafter defined), or (C) securities
issuable 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 (as hereinafter defined)
or pursuant to Section 3(a) or Section 22 hereof (the "Original Rights") or
pursuant to Section 11(i) hereof in connection with an adjustment made with
respect to any Original Rights;

            (ii) which such Person or any of such Person's Affiliates or
Associates, directly or indirectly, has the right to vote or dispose of or has
"beneficial ownership" of (as determined pursuant to Rule 13d-3 of the General
Rules and Regulations under the Exchange Act), including pursuant to any
agreement, arrangement or understanding, whether or not in writing; provided,
however, that a Person shall not be deemed the "Beneficial Owner" of, or to
"beneficially own," any security under this subparagraph (ii) as a result of an
agreement, arrangement or understanding to vote such security if such agreement,
arrangement or understanding: (A) arises solely from a revocable proxy given in
response to a public proxy or consent solicitation made pursuant to, and in
accordance with, the applicable provisions of the

                                       2
<PAGE>   6
General Rules and Regulations under the Exchange Act, and (B) is not reportable
by such Person on Schedule 13D under the Exchange Act (or any comparable or
successor report); or

            (iii) which are beneficially owned, directly or indirectly, by any
other Person (or any Affiliate or Associate thereof) with which such Person (or
any of such Person's Affiliates or Associates) has any 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 (ii) of this paragraph (d)) or disposing of any voting
securities of the Company; provided, however, that nothing in this paragraph (d)
shall cause a Person engaged in business as an underwriter of securities to be
the "Beneficial Owner" of, or to "beneficially own," any securities acquired
through such Person's participation in good faith in a firm commitment
underwriting until the expiration of forty days after the date of such
acquisition, and then only if such securities continue to be owned by such
Person at such expiration of forty days. Notwithstanding anything in this
definition of Beneficial Ownership to the contrary, the phrase "then
outstanding," when used with reference to a Person's Beneficial Ownership of the
securities of the Company, shall mean the number of such securities then issued
and outstanding together with the number of such securities not then actually
issued and outstanding which such Person would be deemed to own beneficially
hereunder.

            (f) "Board" shall have the meaning set forth in the WHEREAS clause
at the beginning of this Agreement.

            (g) "Business Day" shall mean any day other than a Saturday, Sunday
or a day on which banking institutions in the State of New York are authorized
or obligated by law or executive order to close.

            (h) "Close of Business" on any given date shall mean 5:00 P.M., New
York City time, on such date; provided, however, that if such date is not a
Business Day, it shall mean 5:00 P.M., New York City time, on the next
succeeding Business Day.

            (i) "Common Stock" shall mean the Common Stock, par value $0.01 per
share, of the Company, except that "Common Stock" when used with reference to
any Person other than the Company shall mean the capital stock of such Person
with the greatest voting power, or the equity securities or other equity
interest having power to control or direct the management, of such Person.

            (j) "Common Stock Equivalents" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            (k) "Common Stock Holding Company" shall mean a Non-Reuters Exempted
Entity that owns less than 35% of the then outstanding Common Stock or a
Non-Reuters Exempted Entity Transferee that (1) shall not have ceased to be an
Exempted Entity by virtue of Section 1(t)(y), and (2) beneficially owns Common
Stock that represents 66 2/3% or more of the total assets of such Non-Reuters
Exempted Entity or such Non-Reuters Exempted Entity Transferee.

            (l) "Company" shall have the meaning set forth in the parties clause
at the beginning of this Agreement, as it may be modified by Section 13(a)
hereof.

                                       3
<PAGE>   7
            (m) "Current Market Price" shall have the meaning set forth in
Section 11(d)(i) hereof.

            (n) "Current Value" shall have the meaning set forth in Section
11(a)(iii) hereof.

            (o) "Deemed Share Transfer" shall mean the direct or indirect
acquisition of a Common Stock Holding Company by another Person or group of
Persons who or which is not an Affiliate of such Common Stock Holding Company
prior to such acquisition (an "Acquiring Non-Exempted Entity") by means of: a
transaction or series of transactions (including, without limitation, any
reorganization, merger or consolidation, whether of such Common Stock Holding
Company with or into any Acquiring Non-Exempted Entity or of any Acquiring
Non-Exempted Entity with or into such Common Stock Holding Company) in which an
Acquiring Non-Exempted Entity acquires Beneficial Ownership of more than 50% of
the voting power of a Common Stock Holding Company or such surviving Person.

            (p) "Distribution Date" shall have the meaning set forth in Section
3(a) hereof.

            (q) "Equivalent Preferred Stock" shall have the meaning set forth in
Section 11(b) hereof.

            (r) "Exchange Act" shall mean the Securities and Exchange Act of
1934.

            (s) "Exchange Ratio" shall have the meaning set forth in Section
24(a) hereof.

            (t) "Exempted Entity" shall mean: (1) any Reuters Entity, (2) any
transferee of any Reuters Entity that acquires directly from any such Reuters
Entity fifteen percent (15%) or more of the then outstanding Common Stock (a
"Non-Reuters Exempted Entity"), (3) any transferee of any Non-Reuters Exempted
Entity that acquires directly from any Non-Reuters Exempted Entity thirty-five
percent (35%) or more of the then outstanding Common Stock (a "Non-Reuters
Exempted Entity Transferee") and (4) any Person who or which is the Beneficial
Owner of Common Stock beneficially owned by an Exempted Entity; provided,
however, that (x) no Reuters Entity shall have the right to create more than two
Non-Reuters Exempted Entities for purposes of this Agreement at any time after
Reuters shall beneficially own less than a majority of the then outstanding
Common Stock, (y) any Reuters Entity, any Non-Reuters Exempted Entity and any
Non-Reuters Exempted Entity Transferee shall cease to be an Exempted Entity as
of the date that such Reuters Entity, Non-Reuters Exempted Entity or Non-Reuters
Exempted Entity Transferee ceases to beneficially own fifteen percent (15%) or
more of the shares of the then outstanding Common Stock and (z) for purposes of
this definition, if a Common Stock Holding Company shall undergo a Deemed Share
Transfer, then the Beneficial Owner of Common Stock owned by such Common Stock
Holding Company, including the Acquiring Non-Exempted Entity shall not be an
Exempted Entity unless such Person was an Exempted Entity effective immediately
prior to the occurrence of such Deemed Share Transfer.

            (u) "Expiration Date" shall have the meaning set forth in Section
7(a) hereof.

                                       4
<PAGE>   8
            (v) "Final Expiration Date" shall have the meaning set forth in
Section 7(a) hereof.

            (w) "NASDAQ" shall mean the National Association of Securities
Dealers Automated Quotation System.

            (x) "Person" shall mean any individual, firm, corporation,
partnership, limited liability company or other entity.

            (y) "Preferred Stock" shall mean shares of Series A Junior
Participating Preferred Stock, par value $0.01 per share, of the Company, and,
to the extent that there are not a sufficient number of shares of Series A
Junior Participating Preferred Stock authorized to permit the full exercise of
the Rights, any other series of preferred stock of the Company designated for
such purpose containing terms substantially similar to the terms of the Series A
Junior Participating Preferred Stock.

            (z) "Principal Party" shall have the meaning set forth in Section
13(b) hereof.

            (aa) "Purchase Price" shall have the meaning set forth in Section
4(a) hereof.

            (bb) "Record Date" shall have the meaning set forth in the WHEREAS
clause at the beginning of this Agreement.

            (cc) "Redemption Date" shall have the meaning set forth in Section
23(b) hereof.

            (dd) "Redemption Price" shall have the meaning set forth in Section
23(a) hereof.

            (ee) "Reuters Entity" shall mean Reuters Group PLC, a United Kingdom
public limited company, or any Subsidiary thereof, except for the Company and
its Subsidiaries.

            (ff) "Rights" shall have the meaning set forth in the WHEREAS clause
at the beginning of this Agreement.

            (gg) "Rights Agent" shall have the meaning set forth in the parties
clause at the beginning of this Agreement.

            (hh) "Rights Certificate" shall have the meaning set forth in
Section 3(a) hereof

            (ii) "Section 11(a)(ii) Event" shall mean any event described in
Section 11(a)(ii) hereof.

            (jj) "Section 11(a)(ii) Trigger Date" shall have the meaning set
forth in Section 11(a)(iii) hereof.

            (kk) "Section 13 Event" shall mean any event described in clauses
(x), (y) or (z) of Section 13(a) hereof.

                                       5
<PAGE>   9
            (ll) "Spread" shall have the meaning set forth in Section 11(a)(iii)
hereof.

            (mm) "Stock Acquisition Date" shall mean the earlier of the date of
(i) the first date of public announcement (which, for purposes of this
definition, shall include, without limitation, a report filed or amended
pursuant to Section 13(d) under the Exchange Act) by the Company or an Acquiring
Person that an Acquiring Person has become such or (ii) the public disclosure of
facts by the Company or an Acquiring Person indicating that a Person has become
such.

            (nn) "Subsidiary" shall mean, with reference to any Person, any
corporation of which an amount of voting securities sufficient to elect at least
a majority of the directors of such corporation is beneficially owned, directly
or indirectly, by such Person, or otherwise controlled by such Person.

            (oo) "Substitution Period" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            (pp) "Summary of Rights" shall have the meaning set forth in Section
3(b) hereof.

            (qq) "Trading Day" shall have the meaning set forth in Section
11(d)(i) hereof.

            (rr) "Triggering Event" shall mean any Section 11(a)(ii) Event or
any Section 13 Event.

            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. The
Company may from time to time appoint such co-rights agents as it may deem
necessary or desirable upon ten days written notice to the Rights Agent. The
Rights Agent shall have no duty to supervise and shall in no event be liable for
the acts or omissions of, any such co-rights agent.

            Section 3. Issuance of Rights Certificates.

            (a) Until the earlier of (i) the close of business on the tenth
Business Day after the Stock Acquisition Date, or (ii) the close of business on
the tenth Business Day (or such later date as may be determined by action of the
Board prior to such time as any Person becomes an Acquiring Person) 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 of the Company or of any
Subsidiary of the Company, or any Person or entity organized, appointed or
established by the Company for or pursuant to the terms of any such plan) is
first published or sent or given within the meaning of Rule 14d-2(a) of the
General Rules and Regulations under the Exchange Act, if upon consummation
thereof, such Person would become an Acquiring Person (the earlier of (i) and
(ii) being herein referred to as the "Distribution Date"), (x) the Rights will
be evidenced (subject to the provisions of paragraph (b) of this Section 3) by
the certificates for the Common Stock registered in the names of the holders of
the Common Stock (which certificates for 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

                                       6
<PAGE>   10
underlying shares of Common Stock (including a transfer to the Company). The
Company shall promptly notify the Rights Agent of the occurrence of a
Distribution Date and request its transfer agent to provide to the Rights Agent
a shareholder list together with all other relevant information. As soon as
practicable after the Rights Agent is notified of the Distribution Date and
receives such notice, list and information from the Company, the Rights Agent
will, at the Company's expense, send by first-class, insured, postage-prepaid
mail, to each record holder of the 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 right certificates, in substantially the form of Exhibit B
hereto (the "Rights Certificates"), evidencing one Right for each share of
Common Stock so held, subject to adjustment as provided herein. In the event
that an adjustment in the number of Rights per share of Common Stock has been
made pursuant to Section 11(p) hereof, at the time of distribution of the Rights
Certificates, the Company shall 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. The failure to
mail a Rights Certificate shall not affect the legality or validity of the
Rights.

            (b) The Company will send, as promptly as practicable following the
Record Date, a copy of a Summary of Rights, in the form attached hereto as
Exhibit C (the "Summary of Rights") by first-class, postage-prepaid mail, to
each record holder of 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 and will
make the Summary of Rights available to any holder of Rights who may so request
from time to time prior to the Expiration Date. With respect to certificates for
the Common Stock outstanding as of the Record Date, until the Distribution Date,
the Rights will be evidenced by such certificates registered in the names of the
holders thereof together with a copy of the Summary of Rights attached thereto
and the registered holders of the Common Stock shall also be the registered
holders of the associated Rights. Until the Close of Business on the
Distribution Date (or the earlier of the Redemption Date or the Close of
Business on the Final Expiration Date), the surrender for transfer of any
certificates representing shares of Common Stock outstanding on the Record Date,
with or without a copy of the Summary of Rights attached thereto, shall also
constitute the transfer of the Rights associated with such shares of Common
Stock.

            (c) Rights shall be issued in respect of all shares of Common Stock
which are issued (whether originally issued or from the Company's treasury) on
or after the Record Date but prior to the earliest of the Close of Business on
the Distribution Date, the Redemption Date or the Close of Business on the Final
Expiration Date. Certificates representing such shares of Common Stock shall
also be deemed to be certificates for Rights, and shall bear the following
legend:

            This certificate also evidences and entitles the holder hereof to
      certain Rights as set forth in the Rights Agreement between Instinet Group
      Incorporated (the "Company") and the Rights Agent thereunder, as it may
      from time to time be amended or supplemented in accordance with its terms
      (the "Rights Agreement"), the terms of which are hereby incorporated
      herein by reference and a copy of which is on file at the principal
      offices of the Company. Under certain circumstances, as set forth in the
      Rights

                                       7
<PAGE>   11
      Agreement, such Rights will be evidenced by separate certificates and will
      no longer be evidenced by 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 such certificates containing the foregoing legend,
until the earlier of (i) the Distribution Date or (ii) the Expiration Date, the
Rights associated with the Common Stock represented by such certificates shall
be evidenced by such certificates alone and registered holders of 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 Common Stock represented by such certificates.

            Section 4. Form of Rights Certificates.

            (a) The Rights Certificates (and the forms of election to purchase
and of assignment to be printed on the reverse thereof) shall each be
substantially in the form set forth in Exhibit B hereto and may have such marks
of identification or designation and such legends, summaries or endorsements
printed thereon as the Company may deem appropriate (but which do not affect the
rights, duties or responsibilities of the Rights Agent) and as are not
inconsistent with the provisions of this Agreement, or as may be required to
comply with any applicable law or with any rule or regulation made pursuant
thereto 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. The Rights Certificates
shall be in machine printable format and in a form reasonably satisfactory to
the Rights Agent. Subject to the provisions of Section 11 and Section 22 hereof,
the Rights Certificates, whenever distributed, shall be dated as of the Record
Date, show the date of counter signature, and on their face shall entitle the
holders thereof to purchase such number of one one-hundredths of a share of
Preferred Stock as shall be set forth therein at the price set forth therein
(such exercise price per one one-hundredth of a share, the "Purchase Price"),
but the amount and type of securities purchasable 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 to Section 3(a), Section
11(i) or Section 22 hereof 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) who
becomes a transferee after the Acquiring Person becomes such, or (iii) a
transferee of an Acquiring Person (or of any such Associate or Affiliate) who
becomes a transferee prior to or concurrently with the Acquiring Person becoming
such and receives such Rights pursuant to either (A) a transfer (whether or not
for consideration) from the Acquiring Person to holders of equity interests in
such Acquiring Person or to any Person with whom such Acquiring Person has any
continuing agreement, arrangement or understanding regarding the transferred
Rights or (B) a transfer which the Board has determined is part of a plan,
continuing agreement, arrangement or understanding which has as a primary
purpose or effect avoidance of Section 7(e) hereof, and provided that the
Company shall have notified the Rights Agent that this

                                       8
<PAGE>   12
Section 4(b) applies, any Rights Certificate issued pursuant to Section 6 or
Section 11 hereof upon transfer, exchange, replacement or adjustment of any
other Rights Certificate referred to in this sentence, shall 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 the Rights Agreement.

            The Company shall supply the Rights Agent with such legended Rights
      Certificates.

            Section 5. Countersignature and Registration.

            (a) The Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its President or any Vice President,
either manually or by facsimile signature, and shall have affixed thereto the
Company's seal or a facsimile thereof which shall be attested by the Secretary
or an Assistant Secretary of the Company, either manually or by facsimile
signature. The Rights Certificates shall be countersigned by the Rights Agent,
either manually or by facsimile signature, and shall not be valid for any
purpose unless so countersigned. In case any officer of the Company who shall
have signed any of the Rights Certificates shall cease to be such officer of the
Company before countersignature by the Rights Agent and issuance and delivery by
the Company, such Rights Certificates, nevertheless, may be countersigned by the
Rights Agent and issued and delivered by the Company with the same force and
effect as though the person who signed such Rights Certificates had not ceased
to be such officer of the Company; and any Rights Certificates may be signed on
behalf of the Company by any person who, at the actual date of the execution of
such Rights Certificate, shall be a proper officer of the Company to sign such
Rights Certificate, although at the date of the execution of this Rights
Agreement any such person was not such an officer.

            (b) Following the Distribution Date and receipt by the Rights Agent
of all reasonably necessary information, the Rights Agent will keep, or cause to
be kept, at its principal office or offices designated as the appropriate place
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 names and addresses of the respective holders of the Rights
Certificates, the number of Rights evidenced on its face by each of the Rights
Certificates and the date of each of the Rights Certificates.

            Section 6. Transfer, Split-Up, Combination and Exchange of Rights
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.

            (a) Subject to the provisions of Section 4(b), Section 7(e) and
Section 14 hereof, 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 (other than Rights Certificates representing
Rights that may have been exchanged pursuant to Section 24 hereof) may be
transferred, split up, combined or exchanged for another Rights Certificate or

                                       9
<PAGE>   13
Certificates, entitling the registered holder to purchase a like number of one
one-hundredths of a share of Preferred Stock (or, following a Triggering Event,
Common Stock, other securities, cash or other assets, as the case may be) as the
Rights Certificate or Certificates surrendered then entitles such holder (or
former holder in the case of a transfer) 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 properly completed and
signed the certificate contained 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) or Affiliates
or Associates thereof as the Company or the Rights Agent shall reasonably
request. Thereupon the Rights Agent shall, subject to Section 4(b), Section
7(e), Section 14 hereof and Section 24 hereof, 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 by the holders of
Rights 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. The Rights Agent shall have no duty or obligation to take
any action under any Section of this Agreement which requires the payment by a
holder of Rights of applicable taxes and governmental charges unless and until
the Rights Agent is satisfied that all such taxes and/or charges have been paid.

            (b) Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation of
a Rights Certificate, and, in case of loss, theft or destruction, of indemnity
or security reasonably satisfactory to them, and, at the Company's or the
Right's Agent's request, and reimbursement to the Company and the Rights Agent
of all reasonable expenses incidental thereto, and upon surrender to the Rights
Agent and cancellation of the Rights Certificate, if mutilated, the Company will
execute and deliver a new Rights Certificate of like tenor to the Rights Agent
for countersignature and delivery to the registered owner in lieu of the Rights
Certificate so lost, stolen, destroyed or mutilated.

            Section 7. Exercise of Rights; Purchase Price; Expiration Date of
Rights.

            (a) Subject to Section 7(e) hereof, at any time after the
Distribution Date the registered holder of any Rights Certificate may exercise
the Rights evidenced thereby (except as otherwise provided herein including,
without limitation, the restrictions on exercisability set forth in Section
9(c), Section 11(a)(ii) and Section 23(a) hereof) in whole or in part 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 principal office or offices of the Rights Agent designated for such
purpose, together with payment of the aggregate Purchase Price with respect to
the total number of one one-hundredths of a share (or other securities, cash or
other assets, as the case may be) as to which such surrendered Rights are then
exercisable, at or prior to the earlier of (i) 5:00 P.M., New York City time, on
May __, 2011, or such later date as may be established by the Board prior to the
expiration of the Rights (such date, as it may be extended by the Board, the
("Final Expiration Date"); (ii) the time at which the right to exercise

                                       10
<PAGE>   14
the Rights terminates pursuant to Section 23 hereof; or (iii) the time at which
the right to exercise the Rights terminates pursuant to Section 24 hereof (the
earliest of (i), (ii) and (iii) being herein referred to as the "Expiration
Date").

            (b) The Purchase Price for each one one-hundredth of a share of
Preferred Stock pursuant to the exercise of a Right shall initially be $60, and
shall be subject to adjustment from time to time as provided in Section 11 and
Section 13(a) hereof and shall be payable in accordance with paragraph (c)
below.

            (c) 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 per one one-hundredth of a share of Preferred Stock (or other shares,
securities, cash or other assets, as the case may be) to be purchased as set
forth below and an amount equal to any applicable tax or charge, the Rights
Agent shall, subject to Section 20(k) hereof, thereupon promptly (i) (A)
requisition from any transfer agent of the shares of Preferred Stock (or make
available, if the Rights Agent is the transfer agent for such shares)
certificates for the total number of one one-hundredths of a share of Preferred
Stock to be purchased and the Company hereby irrevocably authorizes its transfer
agent to comply with all such requests, or (B) if the Company shall have elected
to deposit the total number of shares of Preferred Stock issuable upon exercise
of the Rights hereunder with a depositary agent, requisition from the depositary
agent depositary receipts representing such number of one one-hundredths of a
share of Preferred Stock as are to be purchased (in which case certificates for
the shares of Preferred Stock represented by such receipts shall be deposited by
the transfer agent with the depositary agent) 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 hereof, (iii) after receipt of such certificates or
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. The payment of the Purchase Price (as such amount may be reduced
pursuant to Section 11(a)(iii) hereof) shall be made in cash or by certified
bank check or bank draft payable to the order of the Company. In the event that
the Company is obligated to issue other securities (including Common Stock) of
the Company, pay cash and/or distribute other property pursuant to Section 11(a)
hereof, the Company will make all arrangements necessary so that such other
securities, cash and/or other property are available for distribution by the
Rights Agent, if and when necessary to comply with this Agreement. The Company
reserves the right to require prior to the occurrence of a Triggering Event
that, upon any exercise of Rights, a number of Rights be exercised so that only
whole shares of Preferred Stock would be issued.

            (d) In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing Rights equivalent to the Rights remaining unexercised shall be issued
by the Rights Agent and 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, subject to the provisions of Section 14 hereof.

                                       11
<PAGE>   15
            (e) Notwithstanding anything in this Agreement to the contrary, from
and after the first occurrence of a Section 11(a)(ii) 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) who becomes a transferee after the Acquiring Person
becomes such, or (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for consideration) from the Acquiring Person to
holders of equity interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a transfer which the Board has
determined is part of a plan, continuing agreement, arrangement or understanding
which has as a primary purpose or effect the avoidance of this Section 7(e),
shall become 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 notify the
Rights Agent when this Section 7(e) applies and should use all reasonable
efforts to insure that the provisions of this Section 7(e) and Section 4(b)
hereof are complied with, but neither the Company nor the Rights Agent shall
have any liability to any holder of Rights Certificates or any other Person as a
result of the Company's failure to make any determinations with respect to an
Acquiring Person or its Affiliates, Associates or transferees hereunder. The
Rights Agent will endeavor to comply with the provisions hereof to the extent it
has received instructions from the Company concerning such matters.

            (f) Notwithstanding anything in this Agreement 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 as set forth in this Section 7 unless such registered holder shall have
(i) properly completed and signed the certificate contained in 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) or Associates or
Affiliates thereof as the Company or the Rights Agent shall reasonably request.

            Section 8. Cancellation 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
any of the provisions of this Agreement. The Company shall deliver to the Rights
Agent for cancellation and retirement, and the Rights Agent shall so cancel and
retire, any other Rights Certificate purchased or acquired by the Company
otherwise than upon the exercise thereof. The Rights Agent shall deliver all
cancelled Rights Certificates to the Company.

            Section 9. Reservation and Availability of Capital Stock.

            (a) The Company covenants and agrees that it will cause to be
reserved and kept available out of its authorized and unissued shares of
Preferred Stock (and, following the occurrence of a Triggering Event, out of its
authorized and unissued shares of Common Stock and/or other securities or out of
its authorized and issued shares held in its treasury), the number

                                       12
<PAGE>   16
of shares of Preferred Stock (and, following the occurrence of a Triggering
Event, Common Stock and/or other securities) that, as provided in this Agreement
including Section 11(a)(iii) hereof, will be sufficient to permit the exercise
in full of all outstanding Rights.

            (b) So long as the shares of Preferred Stock (and, following the
occurrence of a Triggering Event, Common Stock and/or other securities) issuable
and deliverable upon the exercise of the Rights may be listed on any national
securities exchange, the Company shall use its best efforts to cause, from and
after such time as the Rights become exercisable, all shares 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 to (i) file, as soon as
practicable following the earliest date after the first occurrence of a Section
11(a)(ii) Event on which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section 11(a)(iii)
hereof, a registration statement under the Act, with respect to the securities
purchasable upon exercise of the Rights on an appropriate form, (ii) cause such
registration statement to become effective as soon as practicable after such
filing, and (iii) cause such registration statement to remain effective (with a
prospectus at all times meeting the requirements of the Act) until the earlier
of (A) the date as of which the Rights are no longer exercisable for such
securities, and (B) the date of the expiration of the Rights. The Company will
also take such action as may be appropriate under, or to ensure compliance with,
the securities or "blue sky" laws of the various states in connection with the
exercisability of the Rights. The Company may temporarily suspend, for a period
of time not to exceed ninety (90) days after the date set forth in clause (i) of
the first sentence of this Section 9(c), the exercisability of the Rights in
order to prepare and file such registration statement and permit it to become
effective. Upon any such suspension, the Company shall issue a public
announcement and shall give simultaneous written notice to the Rights Agent
stating that the exercisability of the Rights has been temporarily suspended, as
well as a public announcement at such time as the suspension has been rescinded.
In addition, if the Company shall determine that a registration statement is
required following the Distribution Date, the Company may by issuing a public
announcement temporarily suspend the exercisability of the Rights until such
time as a registration statement has been declared effective. The Company shall
promptly provide the Rights Agent with copies of such announcements.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction if the requisite qualification in
such jurisdiction shall not have been obtained, the exercise thereof shall not
be permitted under applicable law, or a registration statement shall not have
been declared effective. The Rights Agent may assume that any Right exercised is
permitted to be exercised under applicable law and shall have no liability for
acting in reliance upon such assumption.

            (d) The Company covenants and agrees that it will take all such
action as may be necessary to ensure that all one one-hundredths of a share of
Preferred Stock (and, following the occurrence of a Triggering Event, Common
Stock and/or other securities) delivered upon exercise of Rights shall, at the
time of delivery of the certificates for such shares (subject to payment of the
Purchase Price), be duly and validly authorized and issued and fully paid and
nonassessable.

                                       13
<PAGE>   17
            (e) The Company further covenants and agrees that it will pay when
due and payable any and all taxes and governmental charges which may be payable
in respect of the issuance or delivery of the Rights Certificates and of any
certificates for a number of one one-hundredths of a share of Preferred Stock
(or Common Stock and/or other securities, as the case may be) upon the exercise
of Rights. The Company shall not, however, be required to pay any tax or charge
which may be payable in respect of any transfer or delivery of Rights
Certificates to a Person other than, or the issuance or delivery of a number of
one one-hundredths of a share of Preferred Stock (or Common Stock and/or other
securities, as the case may be) in respect of a name other than that of the
registered holder of the Rights Certificates evidencing Rights surrendered for
exercise or to issue or deliver any certificates for a number of one
one-hundredths of a share of Preferred Stock (or Common Stock and/or other
securities, as the case may be) in a name other than that of the registered
holder upon the exercise of any Rights until such tax or charge 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 or charge is due.

            Section 10. Preferred Stock Record Date. Each Person in whose name
any certificate for a number of one one-hundredths of a share of Preferred Stock
(or Common Stock and/or other securities, as the case may be) is issued upon the
exercise of Rights shall for all purposes be deemed to have become the holder of
record of such fractional shares of Preferred Stock (or Common Stock and/or
other securities, as the case may be) 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 all applicable taxes and charges) was made; provided, however, that if the
date of such surrender and payment is a date upon which the Preferred Stock (or
Common Stock and/or other securities, as the case may be) transfer books of the
Company are closed, such Person shall be deemed to have become the record holder
of such shares (fractional or otherwise) on, and such certificate shall be
dated, the next succeeding Business Day on which the Preferred Stock (or Common
Stock and/or other securities, as the case may be) transfer books of the Company
are open. Prior to the exercise of the Rights evidenced thereby, the holder of a
Rights Certificate shall not be entitled to any rights of a stockholder of the
Company with respect to shares 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 shares covered
by each Right and the number of Rights outstanding are subject to adjustment
from time to time as provided in this Section 11.

            (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) and Section 7(e) hereof, the
Purchase Price in effect at the time of the record

                                       14
<PAGE>   18
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, 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 and at a time when the Preferred Stock transfer books of the
Company were open, 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) hereof, 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) hereof.

            (ii) In the event any Person shall become an Acquiring Person, then,
promptly following the occurrence of such event, proper provision shall be made
so that each holder of a Right (except as provided below and in Section 7(e)
hereof) 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 a number of one one-hundredths of a share of Preferred Stock, such
number of shares of Common Stock of the Company as shall equal the result
obtained by (x) multiplying the then current Purchase Price by the then number
of one one-hundredths of a share of Preferred Stock for which a Right was
exercisable immediately prior to the first occurrence of a Section 11(a)(ii)
Event, and (y) dividing that product (which, following such first occurrence,
shall thereafter be referred to as the "Purchase Price" for each Right and for
all purposes of this Agreement) by 50% of the Current Market Price (determined
pursuant to Section 11(d) hereof) per share of Common Stock on the date of such
first occurrence (such number of shares, the "Adjustment Shares").

            (iii) In the event that the number of shares of Common Stock which
are authorized by the Company's Certificate of Incorporation, but which are not
outstanding or reserved for issuance for purposes other than upon exercise of
the Rights, are 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 shall (A) determine the value of the Adjustment Shares issuable upon the
exercise of a Right (the "Current Value"), and (B) with respect to each Right
(subject to Section 7(e) hereof), make adequate provision to substitute for the
Adjustment Shares, upon the exercise of a Right and payment of the applicable
Purchase Price, (1) cash, (2) a reduction in the Purchase Price, (3) Common
Stock or other equity securities of the Company (including, without limitation,
shares, or units of shares, of preferred stock, such as the Preferred Stock,
which the Board has deemed to have essentially the same value or economic rights
as shares of Common Stock (such shares of preferred stock being referred to as
"Common 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 (less the amount of any reduction in the Purchase Price),
where such aggregate value has been determined by the Board based upon the
advice of a nationally recognized investment banking firm selected by the Board;
provided, however, that if the Company shall not have made adequate provision to
deliver value pursuant to clause (B) above within thirty (30) days following the
later of (x) the first occurrence of a 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)(ii)
Trigger Date"),

                                       15
<PAGE>   19
then the Company shall be obligated to deliver, upon the surrender for exercise
of a Right and without requiring payment of the Purchase Price, shares of Common
Stock (to the extent available) and then, if necessary, cash, which shares
and/or cash have an aggregate value equal to the Spread. For purposes of the
preceding sentence, the term "Spread" shall mean the excess of (i) the Current
Value over (ii) the Purchase Price. If the Board determines in good faith that
it is likely that sufficient additional shares of Common Stock could be
authorized for issuance upon exercise in full of the Rights, the thirty (30) day
period set forth above may be extended to the extent necessary, but not more
than ninety (90) days after the Section 11(a)(ii) Trigger Date, in order that
the Company may seek shareholder approval for the authorization of such
additional shares (such thirty (30) day period, as it may be extended, is herein
called the "Substitution Period"). To the extent that action is to be taken
pursuant to the first and/or third sentences of this Section 11(a)(iii), the
Company (1) shall provide, subject to Section 7(e) hereof, that such action
shall apply uniformly to all outstanding Rights, and (2) may suspend the
exercisability of the Rights until the expiration of the Substitution Period in
order to seek such shareholder approval for such authorization of additional
shares and/or to decide the appropriate form of distribution to be made pursuant
to such first sentence and to determine the value thereof. In the event of any
such suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement at such time as the suspension is no longer in effect, in each case
with simultaneous written notice to the Rights Agent. For purposes of this
Section 11(a)(iii), the value of each Adjustment Share shall be the Current
Market Price per share of the Common Stock on the Section 11(a)(ii) Trigger Date
and the per share or per unit value of any Common Stock Equivalent shall be
deemed to equal the Current Market Price per share of the Common 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 (45) calendar
days after such record date) Preferred Stock (or shares having the same rights,
privileges and preferences as the 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) hereof)
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 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 the Board, 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

                                       16
<PAGE>   20
Company shall not 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 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 Preferred Stock, but including any dividend
payable in stock other than Preferred Stock) or evidences of indebtedness, or of
subscription rights or warrants (excluding those referred to in Section 11(b)
hereof), 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) hereof) per share of Preferred
Stock on such record date, less the fair market value (as determined in good
faith by the Board, whose determination shall be described in a statement filed
with the Rights Agent) of the portion of the cash, assets or evidences of
indebtedness so to be distributed or of such subscription rights or warrants
applicable to a share of Preferred Stock, and the denominator of which shall be
such Current Market Price (as determined pursuant to Section 11(d) hereof) 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, other than
computations made pursuant to Section 11(a)(iii) hereof, the Current Market
Price per share of Common Stock on any date shall be deemed to be the average of
the daily closing prices per share of such Common Stock for the thirty (30)
consecutive Trading Days immediately prior to and not including such date, and
for purposes of computations made pursuant to Section 11(a)(iii) hereof, the
Current Market Price per share of Common Stock on any date shall be deemed to be
the average of the daily closing prices per share of such Common Stock for the
ten (10) consecutive Trading Days immediately following and not including such
date; provided, however, that in the event that the Current Market Price per
share of the Common Stock is determined during a period following the
announcement by the issuer of such Common Stock of (A) a dividend or
distribution on such Common Stock payable in shares of such Common Stock or
securities convertible into shares of such Common Stock (other than the Rights),
or (B) any subdivision, combination or reclassification of such Common Stock,
and the ex-dividend date for such dividend or distribution, or the record date
for such subdivision, combination or reclassification shall not have occurred
prior to the commencement of the requisite thirty (30) Trading Day or ten (10)
Trading Day period, as set forth above, then, and in each such case, the Current
Market Price shall be properly adjusted to take into account ex-dividend
trading. The closing price for each day shall be 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 the shares of Common Stock are listed or admitted to trading on the New
York Stock Exchange, the closing price for each day shall be the last sale
price, regular way, or, in case no such sale takes place on such day, the
average of the closing bid and asked prices, regular way, in either case as
reported in the principal consolidated transaction reporting

                                       17
<PAGE>   21
system or, if the shares of Common Stock are not listed or admitted to trading
on the New York Stock Exchange, as reported in the principal consolidated
transaction reporting system with respect to securities listed on the principal
national securities exchange on which the shares of Common Stock are listed or
admitted to trading, or, if on any such date the shares of Common Stock are not
quoted by any such organizations, the average of the closing bid and asked
prices as furnished by a professional market maker making a market in the Common
Stock selected by the Board. If on any such date no market maker is making a
market in the Common Stock, the fair value of such shares on such date as
determined in good faith by the Board shall be used. The term "Trading Day"
shall mean a day on which the principal national securities exchange on which
the shares of Common Stock are listed or admitted to trading is open for the
transaction of business or, if the shares of Common Stock are not listed or
admitted to trading on any national securities exchange, a Business Day. If the
Common Stock is 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 the Board, whose determination shall be described in a statement filed with
the Rights Agent and shall be conclusive for all purposes.

        (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 the Common Stock in clause (i) of this Section 11(d) (other than
the last 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 100 (as such number may be
appropriately adjusted for such events as stock splits, stock dividends and
recapitalizations with respect to the Common Stock occurring after the date of
this Agreement) multiplied by the Current Market Price per share of the Common
Stock. If neither the Common Stock nor the 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 the Board, whose
determination shall be described in a statement filed with the Rights Agent and
shall be conclusive for all purposes. For all purposes of this Agreement, the
Current Market Price of a Unit shall be equal to the Current Market Price of one
share of Preferred Stock divided by 100.

        (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 one percent (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 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 ten-thousandth of a share of Common Stock
or other share or one-millionth 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
(3) years from the date of the transaction which mandates such adjustment, or
(ii) the Expiration Date.

        (f) If as a result of an adjustment made pursuant to Section 11(a)(ii)
or Section 13(a) hereof, 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

                                       18
<PAGE>   22
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), (e), (g), (h), (i), (j), (k) and (m), and the
provisions of Sections 7, 9, 10, 13 and 14 hereof 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 one one-hundredths of a
share of Preferred Stock purchasable 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 one one-hundredths of a
share of Preferred Stock (calculated to the nearest one-millionth) obtained by
(i) multiplying (x) the number of one one-hundredths of a share 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 one one-hundredths of a share of Preferred Stock purchasable 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 one one-hundredths of a
share of Preferred Stock for which a Right was exercisable immediately prior to
such adjustment. Each Right held of record prior to such adjustment of the
number of Rights shall become that number of Rights (calculated to the nearest
one-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 (with prompt written notice thereof to the Rights
Agent) 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, and shall promptly give the Rights Agent a copy of such
announcement. 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 (10) days later than the date of the 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 hereof, 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 so to be distributed shall be issued, executed
and countersigned in the manner provided for herein (and may bear, at the option
of the Company, the adjusted

                                       19
<PAGE>   23
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 one one-hundredths of a share 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 one one-hundredth of a
share and the number of one one-hundredth of a share which were expressed in the
initial Rights Certificates issued hereunder.

        (k) Before taking any action that would cause an adjustment reducing the
Purchase Price below the then stated value, if any, of the number of one
one-hundredths of a share 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 fully paid and nonassessable such number of one one-hundredths of a share
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 (and shall give prompt written
notice of such election to the Rights Agent) until the occurrence of such event
the issuance to the holder of any Right exercised after such record date the
number of one one-hundredths of a share of Preferred Stock and other capital
stock or securities of the Company, if any, issuable upon such exercise over and
above the number of one one-hundredths of a share of Preferred Stock and 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 its good faith judgment the Board 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
stockholders.

        (n) The Company covenants and agrees that it 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)
hereof), (ii) merge with or into any other Person (other than a Subsidiary of
the Company in a transaction which complies with Section 11(o) hereof), or (iii)
sell or transfer (or permit any Subsidiary to sell or transfer), in one
transaction, or a series of related transactions, assets, cash flow or earning
power aggregating more than 50% of the assets, cash flow or earning power of the
Company and its Subsidiaries

                                       20
<PAGE>   24
(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) hereof), 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 shareholders of the Person who
constitutes, or would constitute, the "Principal Party" for purposes of Section
13(a) hereof shall have received a distribution of Rights previously owned by
such Person or any of its Affiliates and Associates.

        (o) The Company covenants and agrees that, after the Distribution Date,
it will not, except as permitted by Section 23 or Section 26 hereof, 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 Record Date and prior to the
Distribution Date (i) declare a dividend on the outstanding shares of Common
Stock payable in shares of Common Stock, (ii) subdivide the outstanding shares
of Common Stock, or (iii) combine the outstanding shares of Common Stock into a
smaller number of shares, the number of Rights associated with each share of
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 Common Stock following any such
event shall equal the result obtained by multiplying the number of Rights
associated with each share of Common Stock immediately prior to such event by a
fraction the numerator which shall be the total number of shares of Common Stock
outstanding immediately prior to the occurrence of the event and the denominator
of which shall be the total number of shares of 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 and Section 13 hereof,
the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts and computations accounting for
such adjustment, (b) promptly file with the Rights Agent, and with each transfer
agent for the Preferred Stock and the Common Stock, a copy of such certificate,
and (c) if a Distribution Date has occurred, mail a brief summary thereof to
each holder of a Rights Certificate in accordance with Section 27 hereof (or, if
prior to the Distribution Date, to each holder of a certificate representing
shares of Common Stock). The Rights Agent shall be fully protected in relying on
any such certificate and on any adjustment therein contained and shall have no
duty with respect to and shall not be deemed to have knowledge of such
adjustment unless and until it shall have received such certificate.

        Section 13. Consolidation, Merger or Sale or Transfer of Assets, Cash
Flow or Earning Power.

        (a) In the event that, at any time after a Person becomes an Acquiring
Person, directly or indirectly, (x) the Company shall consolidate with, or merge
with and into, any other

                                       21
<PAGE>   25
Person (other than (i) an Exempted Entity or a (ii) Subsidiary of the Company in
a transaction which complies with Section 11(o) hereof), and the Company shall
not be the continuing or surviving corporation of such consolidation or merger,
(y) any Person (other than (i) an Exempted Entity or (ii) a Subsidiary of the
Company in a transaction which complies with Section 11(o) hereof) 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 Common Stock shall be changed 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), in one transaction or a series of related transactions,
assets, cash flow or earning power aggregating more than 50% of the assets, cash
flow or earning power of the Company and its Subsidiaries (taken as a whole) to
any Person or Persons (other than (i) an Exempted Entity or the Company or (ii)
any Subsidiary of the Company in one or more transactions each of which complies
with Section 11(o) hereof), then, and in each such case (except as may be
contemplated by Section 13(d) hereof), proper provision shall be made so that:
(i) each holder of a Right, except as provided in Section 7(e) hereof, shall
thereafter have the right to receive, upon the exercise thereof at the then
current Purchase Price in accordance with the terms of this Agreement, such
number of validly authorized and issued, fully paid, non-assessable and freely
tradeable shares of Common Stock of the Principal Party (as such term is
hereinafter defined), not subject to any liens, encumbrances, rights of first
refusal or other adverse claims, as shall be equal to the result obtained by (1)
multiplying the then current Purchase Price by the number of one one-hundredths
of a share 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 one one-hundredths of a share for which a Right was
exercisable immediately prior to the first occurrence of a Section 11(a)(ii)
Event by the Purchase Price in effect immediately prior to such first
occurrence), and dividing that product (which, following the first occurrence of
a Section 13 Event, shall be referred to as the "Purchase Price" for each Right
and for all purposes of this Agreement) by (2) 50% of the Current Market Price
(determined pursuant to Section 11(d)(i) hereof) 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 thereafter be deemed
to refer to such Principal Party, it being specifically intended that the
provisions of Section 11 hereof 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 assure that the
provisions hereof shall thereafter be applicable, as nearly as reasonably may
be, in relation to its shares of Common Stock thereafter deliverable upon the
exercise of the Rights; and (v) the provisions of Section 11(a)(ii) hereof shall
be of no effect following the first occurrence of any Section 13 Event.

        (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), the Person that is the issuer of any securities
into which shares of

                                       22
<PAGE>   26
Common Stock of the Company are converted in such merger or consolidation, and
if no securities are so issued, the Person that is the other party to such
merger or consolidation; 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 greatest
portion of the assets, cash flow or earning power transferred pursuant to such
transaction or transactions; provided, however, that in any such case described
in the foregoing clause (i) or (ii) of this Section 13(b) (1) if the Common
Stock of such Person is not at such time and has not been continuously over the
preceding twelve (12) month period registered under Section 12 of the Exchange
Act, and such Person is a direct or indirect Subsidiary of another Person the
Common Stock of which is and has been so registered, "Principal Party" shall
refer to such other Person; and (2) in case such Person is a Subsidiary,
directly or indirectly, of more than one Person, the Common Stocks of two or
more of which are and have been so registered, "Principal Party" shall refer to
whichever of such Persons is the issuer of the Common Stock having the greatest
aggregate market value.

        (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, as soon as practicable after the date of any
consolidation, merger or sale of assets mentioned in paragraph (a) of this
Section 13, the Principal Party will

        (i) prepare and file a registration statement under the Act, with
respect to the Rights and the securities purchasable upon exercise of the Rights
on an appropriate form, and will use its best efforts to cause such registration
statement to (A) become effective as soon as practicable after such filing and
(B) remain effective (with a prospectus at all times meeting the requirements of
the Act) until the Expiration Date; and

        (ii) take such all such other action as may be necessary to enable the
Principal Party to issue the securities purchasable upon exercise of the Rights,
including but not limited to the registration or qualification of such
securities under all requisite securities laws of jurisdictions of the various
states and the listing of such securities on such exchanges and trading markets
as may be necessary or appropriate; and

        (iii) will 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.

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).

        (d) The Rights Agent may rely and be fully protected in relying upon a
certificate of the Company stating that the provisions of this Section 13 have
been fulfilled.

                                       23
<PAGE>   27
Notwithstanding anything in this Agreement to the contrary, the prior written
consent of the Rights Agent must be obtained in connection with any supplemental
agreement which alters the rights or duties of the Rights Agent, which consent
shall not be unreasonably withheld.

        Section 14. Fractional Rights and Fractional Shares.

        (a) The Company shall not be required to issue fractions of Rights,
except prior to the Distribution Date as provided in Section 11(p) hereof, or to
distribute Rights Certificates which evidence fractional Rights. In lieu of such
fractional Rights, the Company shall pay to the registered holders of the Rights
Certificates with regard to which such fractional Rights would otherwise be
issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right. For purposes of this Section 14(a), the current 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
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 the Rights are listed or admitted to trading on the
New York Stock Exchange, the closing price for each day shall be the last sale
price, regular way, or, in case no such sale takes place on such day, the
average of the closing bid and asked prices, regular way, in either case as
reported in the principal consolidated transaction reporting system or, if the
Rights are not listed or admitted to trading on the New York Stock 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 on any such date the Rights are
not quoted by any such organizations, the average of the closing bid and asked
prices as furnished by a professional market maker making a market in the Rights
selected by the Board. If on any such date no market maker is making a market in
the Rights, the fair value of the Rights on such date as determined in good
faith by the Board shall be used.

        (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-hundredth of a share of Preferred Stock) upon exercise of the Rights or to
distribute certificates which evidence fractional shares of Preferred Stock
(other than fractions which are integral multiples of one one-hundredth of a
share of Preferred Stock). In lieu of fractional shares of Preferred Stock that
are not integral multiples of one one-hundredth of a share of Preferred Stock,
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 current market value of one one-hundredth of a share of
Preferred Stock. For purposes of this Section 14(b), the current market value of
one one-hundredth of a share of Preferred Stock shall be one one-hundredth of
the closing price of a share of Preferred Stock (as determined pursuant to
Section 11(d)(ii) hereof) for the Trading Day immediately prior to the date of
such exercise.

        (c) Following the occurrence of a Triggering Event, the Company shall
not be required to issue fractions of shares of Common Stock upon exercise of
the Rights or to distribute certificates which evidence fractional shares of
Common Stock. In lieu of fractional shares of Common Stock, 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
current market value of one (1) share of Common Stock. For purposes of this

                                       24
<PAGE>   28
Section 14(c), the current market value of one share of Common Stock shall be
the closing price of one share of Common Stock (as determined pursuant to
Section 11(d)(i) hereof) for the Trading Day immediately prior to the date of
such exercise.

        (d) The holder of a Right by the acceptance of the Rights 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.

        (e) Whenever a payment for fractional Rights or fractional shares is to
be made by the Rights Agent, the Company shall (i) promptly prepare and deliver
to the Rights Agent a certificate setting forth in reasonable detail the facts
related to such payment and the prices and/or formulas utilized in calculating
such payments, and (ii) provide sufficient monies to the Rights Agent in the
form of fully collected funds to make such payments. The Rights Agent shall be
fully protected in relying upon such a certificate and shall have no duty with
respect to, and shall not be deemed to have knowledge of any payment for
fractional Rights or fractional shares under any Section of this Agreement
relating to the payment of fractional Rights or fractional shares unless and
until the Rights Agent shall have received such a certificate and sufficient
monies.

        Section 15. Rights of Action. All rights of action in respect of this
Agreement are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Stock); and any registered holder of any Rights Certificate (or, prior to
the Distribution Date, of the 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 the Common Stock), may, in his own behalf and for his own
benefit, enforce, and may institute and maintain any suit, action or proceeding
against the Company to enforce, or otherwise act in respect of, his 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 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 fully executed;

                                       25
<PAGE>   29
        (c) subject to Section 6(a) and Section 7(f) hereof, 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 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 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)
hereof, shall be required to be affected by any notice to the contrary; and

        (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 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, judgment or ruling (whether
interlocutory or final) lifted or otherwise overturned as soon as possible.

        Section 17. Rights Certificate Holder Not Deemed a Stockholder. 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 one
one-hundredths of a share 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 stockholder of the Company or any right to vote for
the election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in Section 25 hereof), or to receive dividends or subscription rights,
or otherwise, until the Right or Rights evidenced by such Rights Certificate
shall have been exercised in accordance with the provisions hereof.

        Section 18. Concerning the Rights Agent.

        (a) The Company agrees to pay to the Rights Agent such compensation as
shall be agreed in writing between the Company and the Rights Agent for all
services rendered by it hereunder and, from time to time, on demand of the
Rights Agent, its reasonable expenses and counsel fees and disbursements and
other disbursements incurred in the preparation, delivery, execution, amendment
and administration of this Agreement and the exercise and performance of its
duties hereunder. The Company also agrees to indemnify the Rights Agent for, and
to hold it harmless against, any loss, liability, damage, judgment, fine,
penalty, claim, demand, settlement, cost or expense, incurred without gross
negligence, bad faith or willful misconduct on the part of the Rights Agent
(each as determined by a final, non-appealable order, judgment, decree or ruling
of a court of competent jurisdiction) for any action taken, suffered or omitted
by the Rights Agent in connection with the acceptance and administration of this
Agreement, including, without limitation, the costs and expenses of defending
against any claim (whether asserted by the Company or any holder of Rights) of
liability in the premises. The costs

                                       26
<PAGE>   30
and expenses incurred by the Rights Agent in enforcing this right of
indemnification shall be paid by the Company unless it is determined by a final,
non-appealable order, judgment, decree or ruling of a court of competent
jurisdiction that the Rights Agent is not entitled to indemnification due to the
Rights Agent's gross negligence, bad faith or willful misconduct, in which case
the costs and expenses of the Company incurred in defending this claim for
indemnification shall be paid by the Rights Agent. The provisions of this
Section 18 and Section 20 below shall survive the termination of this Agreement,
the exercise or expiration of the Rights and the resignation or removal of the
Rights Agent.

        (b) The Rights Agent shall be authorized and protected and shall incur
no liability for or in respect of any action taken, suffered or omitted by it in
connection with its acceptance and administration of this Agreement in reliance
upon any Rights Certificate or certificate for Common Stock or for other
securities of the Company, instrument of assignment or transfer, power of
attorney, endorsement, affidavit, letter, notice, instruction, direction,
consent, certificate, statement, or other paper or document believed by it to be
genuine and to be signed and executed by the proper Person or Persons. The
Rights Agent shall not be deemed to have knowledge of any event of which it was
supposed to receive notice thereof hereunder, and the Rights Agent shall be
fully protected and shall incur no liability for failing to take any action in
connection therewith unless and until it has received such notice.

        (c) Notwithstanding anything in this Agreement to the contrary, in no
event shall the Rights Agent be liable for special, indirect, incidental,
punitive or consequential loss or damage of any kind whatsoever (including but
not limited to lost profits), even if the Rights Agent has been advised of the
likelihood of the loss or damage and regardless of the form of the action.

        Section 19. Merger or Consolidation or Change of Name of Rights Agent.

        (a) Any Person into which the Rights Agent or any successor Rights Agent
may be merged or with which it may be consolidated, or any Person resulting from
any merger or consolidation to which the Rights Agent or any successor Rights
Agent shall be a party, or any Person succeeding to the business 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 paper or any further
act on the part of any of the parties hereto; but only if such Person would be
eligible for appointment as a successor Rights Agent under the provisions of
Section 21 hereof. 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

                                       27
<PAGE>   31
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 only the
duties and obligations expressly imposed by this Agreement, and no implied
duties or obligations shall be read into this Agreement against the Rights
Agent, 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:

        (a) The Rights Agent may consult with legal counsel of its selection
(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 and the
determination of Current Market Price) be proved or established by the Company
prior to taking, suffering or omitting to take any action hereunder, such fact
or matter (unless other evidence in respect thereof be herein specifically
prescribed) may be deemed to be conclusively proved and established 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; and such
certificate shall be full authorization to the Rights Agent for any action
taken, suffered or omitted to be taken 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 gross
negligence, bad faith or willful misconduct (each as determined by a final,
non-appealable order, judgment, decree or ruling of a court of competent
jurisdiction). Except as otherwise provided by applicable law, any liability of
the Rights Agent under this Rights Agreement will be limited to the amount of
fees paid by the Company to the Rights Agent.

        (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 be under any responsibility or have any
liability in respect of the validity of this Agreement or the execution and
delivery hereof (except the due execution hereof by the Rights Agent) or in
respect of 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 condition contained in this Agreement or in any
Rights Certificate; nor shall it be responsible for any change in the
exercisability of the Rights (including the Rights becoming null and void
pursuant to Section 7(e)) or any adjustment required under the provisions of
Section 11, Section 13 or Section 24 hereof or responsible for

                                       28
<PAGE>   32
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 the Rights'
Agent's actual notice of any such adjustment); 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 Common Stock or Preferred Stock to be issued
pursuant to this Agreement or any Rights Certificate or as to whether any shares
of Common Stock or Preferred Stock will, when so issued, be validly authorized
and issued, fully paid and nonassessable, nor shall the Rights Agent be
responsible for the legality of the terms hereof in its capacity as an
administrative agent.

        (f) The Company agrees that it will perform, execute, acknowledge and
deliver or cause to be performed, executed, acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying out or performing by the Rights Agent of
the provisions of 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 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 such instruction shall be full authorization and protection to the
Rights Agent and the Rights Agent shall incur no liability for or in respect of
any action taken, suffered or omitted to be taken by it in accordance with
instructions of any such officer or for any delay in acting while waiting for
these instructions. 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
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 such application on or after the date specified in such application
(which date shall not be less than three Business Days after the date any
officer of the Company actually receives such application, unless such officer
shall have consented in writing to any 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 or unless the Rights Agent shall
have acted with gross negligence or willful misconduct.

        (h) The Rights Agent and any stockholder, director, Affiliate, 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, default, neglect or misconduct of any such attorneys or
agents or for any loss to the Company resulting from any such act, default,
neglect or misconduct, absent gross negligence, bad faith or willful misconduct

                                       29
<PAGE>   33
(each as determined by a final, non-appealable order, judgment, decree or ruling
of a court of competent jurisdiction) 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 hereunder or in the exercise of its rights if
it reasonably believes 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 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 of transfer without first consulting with the Company.

        (l) In addition to the foregoing, the Rights Agent shall be protected
and shall incur no liability for, or in respect of, any action taken or omitted
by it in connection with its administration of this Agreement if such acts or
omissions are in reliance upon (i) the proper execution of the certification
concerning beneficial ownership appended to the form of assignment and the form
of election to purchase attached hereto unless the Rights Agent shall have
actual knowledge that, as executed, such certification is untrue, or (ii) the
non-execution of such certification including, without limitation, any refusal
to honor any otherwise permissible assignment or election by reason of such
non-execution.

        (m) The Company agrees to give the Rights Agent prompt written notice of
any event or ownership which would prohibit the exercise or transfer or the
Rights Certificates.

        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 (30) days' notice in writing mailed to the Company, and to each
transfer agent of the Common Stock and Preferred Stock, by registered or
certified mail. Any successor to the Rights Agent that so resigns will send
notice to the registered holders of the Rights Certificates by first-class mail
if such resignation occurs after the Distribution Date. The Company may remove
the Rights Agent or any successor Rights Agent upon thirty (30) days' notice in
writing, mailed to the Rights Agent or successor Rights Agent, as the case may
be, and to each transfer agent of the Common Stock and Preferred Stock, by
registered or certified mail. Any successor to the Rights Agent so removed will
send notice to the holders of Rights Certificates by registered or certified
mail if such removal occurs after the Distribution Date. 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 sixty (60) 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 (who shall, with such notice, submit his Rights Certificate
for inspection by the Company, at the expense of the Company), then the Rights
Agent or any registered holder of any Rights Certificate 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 Person organized and doing business under the laws of the United
States or of the State of New York or of any other state of the United States,
in good standing, having an

                                       30
<PAGE>   34
office in the State of New York, which is authorized under such laws to exercise
corporate trust or stock transfer or shareholder services powers and which has
at the time of its appointment as Rights Agent a combined capital and surplus of
at least $50,000,000 or (b) an affiliate of a Person described in clause (a) of
this sentence. 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 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 Common Stock and the Preferred Stock, and, if such appointment occurs after
the Distribution Date, mail a notice thereof in writing to the registered
holders of the Rights Certificates. 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, as the case may be.

        Section 22. Issuance of New Rights Certificates. Notwithstanding any of
the provisions of this Agreement or of the Rights to the contrary, the Company
may, at its option, issue new Rights Certificates evidencing Rights in such
forms as may be approved by its Board of Directors to reflect any adjustment or
change in the Purchase Price and the number or kind or class of shares or other
securities or property purchaseable under the Rights Certificates made in
accordance with the provisions of this Agreement. In addition, in connection
with the issuance or sale of Common Stock following the Distribution Date and
prior to the earlier of the Redemption Date and the Close of Business on the
Final Expiration Date, the Company may with respect to shares of Common Stock so
issued or sold pursuant to (i) the exercise of stock options, (ii) under any
employee plan or arrangement, (iii) upon the exercise, conversion or exchange of
securities, notes or debentures issued by the Company or (iv) a contractual
obligation of the Company, in each case existing prior to the Distribution Date,
issue Rights Certificates representing the appropriate number of Rights in
connection with such issuance or sale.

        Section 23. Redemption and Termination.

        (a) The Board may, at its option, at any time prior to the earlier of
(i) such time as any Person becomes an Acquiring Person, or (ii) the Final
Expiration Date, redeem all but not less than all of the then outstanding Rights
at a redemption price of $.01 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 hereinafter
referred to as the "Redemption Price"). The Company may, at its option, pay the
Redemption Price in cash, shares of Common Stock (based on the Current Market
Price, as defined in Section 11(d)(i) hereof, of the Common Stock at the time of
redemption) or any other form of consideration deemed appropriate by the Board.

        (b) Immediately upon the time of the effectiveness of the redemption of
the Rights pursuant to paragraph (a) of this Section 23 or such earlier time as
may be determined by the Board ordering the redemption of the Rights, although
not earlier than the time of such action (such time the "Redemption Date"),
evidence of which shall have been filed with the Rights

                                       31
<PAGE>   35
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 the Board 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 the Common Stock; provided, however, that the failure to
give or any defect in any such notice shall not affect the validity of such
redemption. 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. Exchange.

        (a) The Board may, at its option, at any time after any Person becomes
an Acquiring Person, exchange all or part of the then outstanding and
exercisable Rights (which shall not include Rights that have become null and
void pursuant to the provisions of Section 7(e) hereof) for Common Stock at an
exchange ratio of one share of Common 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
"Exchange Ratio"). Notwithstanding the foregoing, the Board shall not be
empowered to effect such exchange at any time after any Person (other than the
Company, any Subsidiary of the Company, any employee benefit plan of the Company
or any such Subsidiary, or any entity holding Common Stock for or pursuant to
the terms of any such plan), together with all Associates or Affiliates of such
Person, becomes the Beneficial Owner of a majority of the Common Stock then
outstanding.

        (b) Immediately upon the action of the Board ordering the exchange of
any Rights pursuant to subsection (a) of this Section 24 and without any further
action and without any notice, the right to exercise such Rights shall terminate
and the only right thereafter of the holders of such Rights shall be to receive
that number of shares of Common Stock equal to the number of such Rights held by
such holder multiplied by the Exchange Ratio. The Company shall promptly give
public notice (with prompt notice thereof to the Rights Agent) 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 the Rights Agent and 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 will state the method by which the exchange of the
Common 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 any exchange pursuant to this Section 24, the Company, at its
option, may substitute Preferred Stock (or Equivalent Preferred Stock, as such
term is defined in paragraph (b) of Section 11 hereof) for Common Stock
exchangeable for Rights, at the initial rate of one one-hundredth of a share of
Preferred Stock (or Equivalent Preferred Stock) for each

                                       32
<PAGE>   36
share of Common Stock, as appropriately adjusted to reflect stock splits, stock
dividends and other similar transactions after the date hereof.

        (d) In the event that there shall not be sufficient shares of Common
Stock issued but not outstanding or authorized but unissued to permit any
exchange of Rights as contemplated in accordance with this Section 24, the
Company shall take all such action as may be necessary to authorize additional
shares of Common Stock for issuance upon exchange of the Rights.

        (e) The Company shall not be required to issue fractions of shares of
Common Stock or to distribute certificates which evidence fractional shares of
Common Stock. In lieu of such fractional shares of Common Stock, there shall be
paid to the registered holders of the Rights Certificates with regard to which
such fractional shares of Common Stock would otherwise be issuable, an amount in
cash equal to the same fraction of the current market value of a whole share of
Common Stock. For the purposes of this subsection (e), the current market value
of a whole share of Common Stock shall be the closing price of a share of Common
Stock (as determined pursuant to the second sentence of Section 11(d)(i) hereof)
for the Trading Day immediately prior to the date of exchange pursuant to this
Section 24.

        Section 25. 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), or (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, or (iii) to effect any reclassification of its Preferred
Stock (other than a reclassification involving only the subdivision of
outstanding shares of Preferred Stock), or (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) hereof), 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 transaction or a series of related transactions,
of more than 50% of the assets, cash flow 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) hereof), or (v) to effect the liquidation,
dissolution or winding up of the Company, then, in each such case, the Company
shall give to the Rights Agent and to each holder of a Rights Certificate in
accordance with Section 26 hereof, 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
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 twenty (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 twenty (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.

                                       33
<PAGE>   37
        (b) In case any of the events set forth in Section 11(a)(ii) hereof
shall occur, then, in any such case, (i) the Company shall as soon as
practicable thereafter give to each holder of a Rights Certificate and to the
Rights Agent, to the extent feasible and in accordance with Section 26 hereof, 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) hereof,
and (ii) all references in the preceding paragraph to Preferred Stock shall be
deemed thereafter to refer to Common Stock and/or, if appropriate, other
securities.

        Section 26. Notices. Notices or demands authorized by this Agreement to
be given or made by the Rights Agent or by the holder of any Rights Certificate
to or on the Company shall be sufficiently given or made if sent by first-class
mail, postage prepaid, addressed (until another address is filed in writing by
the Company with the Rights Agent) or by fascimile or other generally accepted
means of electronic transmission as follows:

                     Instinet Group Incorporated
                     Three Times Square
                     10th Floor
                     New York, New York 10036
                     Attention: General Counsel
                     Telecopy No.:  (646) 223-9017

                     with a copy to:

                     Alan L. Beller
                     Cleary, Gottlieb, Steen & Hamilton
                     One Liberty Plaza
                     New York, NY  10006
                     Telecopy No.:  (212) 225-3999

Subject to the provisions of Section 21, any notice or demand authorized by this
Agreement to be given or made by the Company or by the holder of any Rights
Certificate to or on the Rights Agent shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address is
filed in writing by the Rights Agent with the Company) as follows:

                     [Mellon Investor Services LLC
                     44 Wall Street Street, 6th Floor
                     New York, NY 10005
                     Attention: Vice President
                     Telecopy No.:  (212) 225-3999

                     with a copy to:

                     Mellon Investor Services LLC
                     85 Challenger Road
                     Ridgefield Park, NJ 07660
                     Attention: General Counsel
                     Telecopy No.:  (201) 296-4004]

                                       34
<PAGE>   38
        Notices or demands authorized 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 Common Stock) shall be sufficiently given or made if sent by
first-class mail, postage pre-paid, addressed to such holder at the address of
such holder as shown on the registry books of the Company.

        Section 27. Supplements and Amendments. Subject to the Corporate
Agreement dated as of ______, 2001 and except as provided in the other
provisions of this Section 27, for so long as the Rights are then redeemable,
the Company may in its sole and absolute discretion, and the Rights Agent shall
if the Company so directs, supplement or amend any provision of this Agreement
in any respect without the approval of any holders of the Rights. At any time
when the Rights are no longer redeemable, except as provided in the other
provisions of this Section 27, the Company may, and the Rights Agent shall, if
the Company so directs, supplement or amend this Agreement without the approval
of any holders of Rights; provided that no such supplement or amendment may (a)
adversely affect the interests of the holders of the Rights as such (other than
an Acquiring Person and its Affiliates and Associates), (b) cause the Rights
again to be redeemable or (c) cause the Agreement again to become amendable
other than in accordance with this sentence. Notwithstanding anything contained
in this Agreement to the contrary, (i) no supplement or amendment shall be made
which changes the Redemption Price and (ii) no supplement or amendment that
changes the rights of any Exempted Entity contained in Sections 1(a); 1(k) and
1(t) of this Agreement and related provisions thereto (other than the addition
of other Persons as Exempted Entities) will be effective against such Exempted
Entity without its prior written consent, which consent shall not be
unreasonably withheld. Upon the delivery of a certificate from an appropriate
officer of the Company which states that the supplement or amendment is in
compliance with the terms of this Section 27, and provided that such supplement
or amendment does not change or affect the rights, duties, liabilities or
obligations of the Rights Agent, the Rights Agent shall execute such supplement
or amendment, provided that any supplement or amendment that does not change or
affect the rights, duties, liabilities or obligations of the Rights Agent shall
become effective immediately upon execution by the Company, whether or not also
executed by the Rights Agent.

        Section 28. 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 29. Determinations and Actions by the Board, etc. For all
purposes of this Agreement, any calculation of the number of shares of Common
Stock outstanding at any particular time, including for purposes of determining
the particular percentage of such outstanding shares of 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 General Rules and Regulations under the
Exchange Act. The Board shall have the exclusive power and authority to
administer this Agreement and to exercise all rights and powers specifically
granted to the Board or to the Company, or as may be necessary or advisable in
the administration of this Agreement, including, without limitation, the right
and power to (i) interpret the provisions of this Agreement, and (ii) make all
determinations deemed necessary or advisable for the administration of this
Agreement (including a determination to redeem or not redeem the Rights or to
amend the Agreement). All such actions, calculations, interpretations and
determinations

                                       35
<PAGE>   39
(including, for purposes of clause (y) below, all omissions with respect to the
foregoing) which are done or made by the Board 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, or any of the
directors on the Board to any liability to the holders of the Rights. The Rights
Agent shall always be entitled to assume that the Company's Board acted in good
faith and shall be fully protected and incur no liability in reliance thereon.

        Section 30. 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 the Common Stock) any legal or
equitable right, remedy or claim under this Agreement; but 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 the Common Stock).

        Section 31. 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 the Board determines
in its good faith judgment that severing the invalid language from this
Agreement would adversely affect the purpose or effect of this Agreement, the
right of redemption set forth in Section 23 hereof shall be reinstated (with
prompt notice to the Rights Agent) and shall not expire until the Close of
Business on the tenth Business Day following the date of such determination by
the Board. Without limiting the foregoing, if any provision requiring a specific
group of Directors of the Company to act is held to by any court of competent
jurisdiction or other authority to be invalid, void or unenforceable, such
determination shall then be made by the Board in accordance with applicable law
and the Company's Certificate of Incorporation and By-laws.

        Section 32. Governing Law. This Agreement, each Right and each Rights
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts made
and to be performed entirely within such State; provided, however, that all
provisions regarding the rights, duties and obligations of the Rights Agent
shall be governed by and construed in accordance with the laws of the State of
New York applicable to contracts made and to be performed entirely within such
state.

        Section 33. Counterparts. This Agreement may be executed in any number
of counterparts and each of such counterparts shall for all purposes be deemed
to be an original, and all such counterparts shall together constitute but one
and the same instrument.

        Section 34. Descriptive Headings. Descriptive headings of the several
sections of this Agreement are inserted for convenience only and shall not
control or affect the meaning or construction of any of the provisions hereof.

                                       36
<PAGE>   40
           IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed, all as of the day and year first above written.

                                 INSTINET GROUP INCORPORATED

                                 By
                                 -----------------------------------------------
                                 Name:
                                 Title:

                                 [MELLON INVESTOR SERVICES LLC]

                                 By
                                 -----------------------------------------------
                                 Name:
                                 Title:

                                       37
<PAGE>   41

                                                                       EXHIBIT A

                     [Form of Certification of Designation]

                                     FORM OF
         CERTIFICATE OF DESIGNATIONS PREFERENCES AND RIGHTS OF SERIES A
                      JUNIOR PARTICIPATING PREFERRED STOCK
                                       OF

                           INSTINET GROUP INCORPORATED

             Pursuant to Section 151 of the General Corporation Law
                            of the State of Delaware

            Section 1. Designation and Amount. The shares of such series shall
be designated as "Series A Junior Participating Preferred Stock" and the number
of shares constituting such series shall be 1,000,000. Such number of shares
may be increased or decreased by resolution of the Board of Directors; provided,
that no decrease shall reduce the number of shares of Series A Junior
Participating Preferred Stock to a number of shares then outstanding plus the
number of shares reserved for issuance upon the exercise of outstanding options,
rights or warrants or upon the conversion of any outstanding securities issued
by the Corporation convertible into Series A Junior Participating Preferred
Stock.

            Section 2. Dividends and Distributions.

            (A) Subject to the prior and superior rights of the holders of any
shares of any series of Preferred Stock ranking prior and superior to the shares
of Series A Junior Participating Preferred Stock with respect to dividends, the
holders of shares of Series A Junior Participating Preferred Stock shall be
entitled to receive, when, as and if declared by the Board of Directors out of
funds legally available for the purpose, quarterly dividends payable in cash on
the fifteenth day of March, June, September and December in each year (each such
date being referred to herein as a "Quarterly Dividend Payment Date"),
commencing on the first Quarterly Dividend Payment Date after the first issuance
of a share or fraction of a share of Series A Junior Participating Preferred
Stock, in an amount per share (rounded to the nearest cent) equal to the greater
of (a) $0.01 or (b) subject to the provision for adjustment hereinafter set
forth, 100 times the aggregate per share amount of all cash dividends, and 100
times the aggregate per share amount (payable in kind) of all non-cash dividends
or other distributions

<PAGE>   42

other than a dividend payable in shares of Common Stock, par value $0.01 per
share, of the Corporation (the "Common stock"), or a subdivision of the
outstanding shares of Common Stock (by reclassification or otherwise), declared
on 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 any share or fraction of a share of Series A Junior
Participating Preferred Stock. In the event the Corporation shall at any time
(i) declare any dividend on Common Stock payable in shares of Common Stock, (ii)
subdivide the outstanding Common Stock, or (iii) combine the outstanding Common
Stock into a smaller number of shares, then in each such case the amount to
which holders of shares of Series A Junior Participating Preferred Stock were
entitled immediately prior to such event under clause (b) of the preceding
sentence shall be adjusted by multiplying such amount by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is 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 the
Series A Junior Participating Preferred Stock as provided in Paragraph (A) above
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock); provided 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 $0.01 per share on the
Series A Junior Participating Preferred Stock shall nevertheless be payable on
such subsequent Quarterly Dividend Payment Date.

            (C) Dividends shall begin to accrue and be cumulative on outstanding
shares of Series A Junior Participating Preferred Stock from the Quarterly
Dividend Payment Date next preceding the date of issue of such shares of Series
A Junior Participating Preferred Stock, unless the date of issue of such shares
is prior to the record date for the first Quarterly Dividend Payment Date, in
which case dividends on such shares shall begin to accrue from the date of issue
of such shares, or unless the date of issue is a Quarterly Dividend Payment Date
or is a date after the record date for the determination of holders of shares of
Series A Junior Participating 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 the shares of Series A Junior Participating
Preferred Stock in an amount less than the total amount of such dividends at the
time accrued and payable on such shares shall be allocated pro rata on a
share-by-share basis among all such shares at the time outstanding. The Board of
Directors may fix a record date for the determination of holders of shares of
Series A Junior Participating Preferred Stock entitled to receive payment of a
dividend or distribution declared thereon, which record date shall be no more
than 60 days prior to the date fixed for the payment thereof.

            Section 3. Voting Rights. The holders of shares of Series A Junior
Participating Preferred Stock shall have the following voting rights:

            (A) Subject to the provision for adjustment hereinafter set forth,
each share of Series A Junior Participating Preferred Stock shall entitle the
holder thereof to 100 votes on all

<PAGE>   43

matters submitted to a vote of the stockholders of the Corporation. In the event
the Corporation shall at any time (i) declare any dividend on Common Stock
payable in shares of Common Stock, (ii) subdivide the outstanding Common Stock,
or (iii) combine the outstanding Common Stock into a smaller number of shares,
then in each such case the number of votes per share to which holders of shares
of Series A Junior Participating Preferred Stock were entitled immediately prior
to such event shall be adjusted by multiplying such number by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is 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
shares of Series A Junior Participating 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 Series A Junior
Participating Preferred Stock shall be in arrears in an amount equal to six (6)
quarterly dividends thereon, the occurrence of such contingency shall mark the
beginning of a period (herein called a "default period") which shall extend
until such time when all accrued and unpaid dividends for all previous quarterly
dividend periods and for the current quarterly dividend period on all shares of
Series A Junior Participating Preferred Stock then outstanding shall have been
declared and paid or set apart for payment. During each default period, all
holders of Preferred Stock (including holders of the Series A Junior
Participating Preferred Stock) with dividends in arrears in an amount equal to
six (6) quarterly dividends thereon, voting as a class, irrespective of series,
shall have the right to elect two (2) directors.

            (ii) During any default period, such voting right of the holders of
      Series A Junior Participating 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 right nor the
      right of the holders of any other series of Preferred Stock, if any, to
      increase, in certain cases, the authorized number of directors shall be
      exercised unless the holders of ten percent (10%) in number of shares of
      Preferred Stock outstanding shall be present 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 Preferred Stock of such voting right. At any
      meeting at which the holders of Preferred Stock shall exercise such voting
      right initially during an existing default period, they shall have the
      right, voting as a class, to elect directors to fill such vacancies, if
      any, in the Board of Directors as may then exist up to two (2) directors
      or, if such right is exercised at an annual meeting, to elect two (2)
      directors. If the number which may be so elected at any special meeting
      does not amount to the required number, the holders of the 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 the Preferred Stock shall have exercised their right
      to elect directors in any default period and during the continuance of
      such period, the number of directors shall not be increased or decreased
      except by vote of the holders of Preferred Stock as herein provided or
      pursuant to the rights of any equity securities ranking senior to or pari
      passu with the Series A Junior Participating Preferred Stock.

<PAGE>   44

            (iii) Unless the holders of 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 stock
      holders owning in the aggregate not less than ten percent (10%) of the
      total number of shares of Preferred Stock outstanding, irrespective of
      series, may request, the calling of a special meeting of the holders of
      Preferred Stock, which meeting shall thereupon be called by the President,
      a Vice-President or the Secretary of the Corporation. Notice of such
      meeting and of any annual meeting at which holders of Preferred Stock are
      entitled to vote pursuant to this Paragraph (C)(iii) shall be given to
      each holder of record of 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 than 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 ten percent (10%) of
      the total number of shares of Preferred Stock outstanding. Notwithstanding
      the provisions of this Paragraph (C)(iii), no such special meeting shall
      be called during the period within 60 days immediately preceding the date
      fixed for the next annual meeting of the stockholders.

            (iv) In any default period, the holders of Common Stock, and other
      classes of stock of the Corporation if applicable, shall continue to be
      entitled to elect the whole number of directors until the holders of
      Preferred Stock shall have exercised their right to elect two (2)
      directors voting as a class, after the exercise of which right (x) the
      directors so elected by the holders of 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
      thereto fore elected by the holders of the class of 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
      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
      Preferred Stock as a class to elect directors shall cease, (y) the term of
      any directors elected by the holders of Preferred Stock as a class shall
      terminate, and (z) the number of directors shall be such number as may be
      provided for in the amended and restated certificate of incorporation 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 amended and
      restated certificate of incorporation 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.

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

<PAGE>   45

            Section 4. Certain Restrictions.

            (A) Whenever quarterly dividends or other dividends or distributions
payable on the Series A Junior Participating 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 shares of Series A Junior
Participating Preferred Stock outstanding 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
      stock ranking junior (either as to dividends or upon liquidation,
      dissolution or winding up) to the Series A Junior Participating Preferred
      Stock;

            (ii) declare or pay dividends on or make any other distributions on
      any shares of stock ranking on a parity (either as to dividends or upon
      liquidation, dissolution or winding up) with the Series A Junior
      Participating Preferred Stock, except dividends paid ratably on the Series
      A Junior Participating Preferred Stock and all such parity stock on which
      dividends are payable or in arrears in proportion to the total amounts to
      which the holders of all such shares are then entitled;

            (iii) redeem or purchase or otherwise acquire for consideration
      shares of any stock ranking on a parity (either as to dividends or upon
      liquidation, dissolution or winding up) with the Series A Junior
      Participating Preferred Stock, provided that the Corporation may at any
      time redeem, purchase or otherwise acquire shares of any such parity stock
      in exchange for shares of any stock of the Corporation ranking junior
      (either as to dividends or upon dissolution, liquidation or winding up) to
      the Series A Junior Participating Preferred Stock; or

            (iv) purchase or otherwise acquire for consideration any shares of
      Series A Junior Participating Preferred Stock, [or any shares of stock
      ranking on a parity with the Series A Junior Participating 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 shares upon such terms as the Board of Directors, after consideration
      of the respective annual dividend rates and other relative rights and
      preferences of the respective series and classes, shall determine in good
      faith will result in fair and equitable treatment among the respective
      series or classes.

            (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 shares of Series A Junior
Participating 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 shares shall upon their cancellation become
authorized but unissued shares of Preferred Stock and may be reissued

<PAGE>   46

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
liquidation (voluntary or otherwise), dissolution or winding up of the
Corporation, no distribution shall be made to the holders of shares of stock
ranking junior (either as to dividends or upon liquidation, dissolution or
winding up) to the Series A Junior Participating Preferred Stock unless, prior
thereto, the holders of shares of Series A Junior Participating Preferred Stock
shall have received an amount equal to 1.00 per share of Series A
Participating Preferred Stock, plus an amount equal to accrued and unpaid
dividends and distributions thereon, whether or not declared, to the date of
such payment (the "Series A Liquidation Preference"). Following the payment of
the full amount of the Series A Liquidation Preference, no additional
distributions shall be made to the holders of shares of Series A Junior
Participating Preferred Stock unless, prior thereto, the holders of shares of
Common Stock shall have received an amount per share (the "Common Adjustment")
equal to the quotient obtained by dividing (i) the Series A Liquidation
Preference by (ii) 100 (as appropriately adjusted as set forth in subparagraph
(C) below to reflect such events as stock splits, stock dividends and
recapitalizations with respect to the Common Stock) (such number in clause (ii),
the "Adjustment Number"). Following the payment of the full amount of the Series
A Liquidation Preference and the Common Adjustment in respect of all outstanding
shares of Series A Junior Participating Preferred Stock and Common Stock,
respectively, holders of Series A Junior Participating Preferred Stock and
holders of shares of Common Stock shall receive their ratable and proportionate
share of the remaining assets to be distributed in the ratio of the Adjustment
Number to 1 with respect to such Preferred Stock and Common Stock, on a per
share basis, respectively.

            (B) In the event, however, that there are not sufficient assets
available to permit payment in full of the Series A Liquidation Preference and
the liquidation preferences of all other series of preferred stock, if any,
which rank on a parity with the Series A Junior Participating Preferred Stock,
then such remaining assets shall be distributed ratably to the holders of such
parity shares in proportion to their respective liquidation preferences. In the
event, however, that there are not sufficient assets available to permit payment
in full of the Common Adjustment, then such remaining assets shall be
distributed ratably to the holders of Common Stock.

            (C) In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare any dividend on Common Stock payable in shares of
Common Stock, (ii) subdivide the outstanding Common Stock, or (iii) combine the
outstanding Common Stock into a smaller number of shares, then in each such case
the Adjustment Number in effect immediately prior to such event shall be
adjusted by multiplying such Adjustment Number by a fraction the numerator of
which is the number of shares of Common Stock outstanding immediately after such
event and the denominator of which is 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 changed into other stock or
securities, cash and/or any other property,

<PAGE>   47

then in any such case the shares of Series A Junior Participating Preferred
Stock shall at the same time be similarly exchanged or changed in an amount per
share (subject to the provision for adjustment hereinafter set forth) equal to
100 times 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 changed or exchanged. In the event the Corporation
shall at any time after the Rights Declaration Date (i) declare any dividend on
Common Stock payable in shares of Common Stock, (ii) subdivide the outstanding
Common Stock, or (iii) combine the outstanding Common Stock into a smaller
number of shares, then in each such case the amount set forth in the preceding
sentence with respect to the exchange or change of shares of Series A Junior
Participating Preferred Stock shall be adjusted by multiplying such amount by a
fraction the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

            Section 8. No Redemption. The shares of Series A Junior
Participating Preferred Stock shall not be redeemable.

            Section 9. Ranking. The Series A Junior Participating Preferred
Stock shall rank junior to all other series of the Corporation's Preferred Stock
as to the payment of dividends and the distribution of assets, unless the terms
of any such series shall provide other wise.

            Section 10. Amendment. At any time when any shares of Series A
Junior Participating Preferred Stock are outstanding, neither the Amended and
Restated Certificate of Incorporation of the Corporation nor this Certificate of
Designation shall be amended in any manner which would materially alter or
change the powers, preferences or special rights of the Series A Junior
Participating Preferred Stock so as to affect them adversely without the
affirmative vote of the holders of [a majority two-thirds] or more of the
outstanding shares of Series A Junior Participating Preferred Stock, voting
separately as a class.

            Section 11. Fractional Shares. Series A Junior Participating
Preferred Stock may be issued in fractions of a share which 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 A Junior Participating Preferred Stock.

            IN WITNESS WHEREOF, we have executed and subscribed this Certificate
and do affirm the foregoing as true under the penalties of perjury this _____day
of ________, 2001.

                                                Chairman of the Board:

<PAGE>   48

                                                                       Exhibit B

                          [FORM OF RIGHTS CERTIFICATE]

Certificate                                              No. R-________ Rights

NOT EXERCISABLE AFTER [__________], 2011 [UNLESS EXTENDED PRIOR THERETO BY THE
BOARD OF DIRECTORS] OR EARLIER IF REDEEMED OR EXCHANGED BY THE COMPANY. THE
RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE COMPANY, AT $.01 PER
RIGHT ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN
CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING PERSON (AS SUCH TERM IS
DEFINED IN THE RIGHTS AGREEMENT) AND 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). 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.](1)

                                Right Certificate

                           INSTINET GROUP INCORPORATED

            This certifies that, ______________ or registered assigns, is the
registered owner of the number of Rights set forth above, each of which entitles
the owner thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of __________, 2001 (the "Rights Agreement"), between
Instinet Group Incorporated, a Delaware corporation (the "Company"), and Mellon
Investor Services, [a New Jersey limited liability company banking corporation]
(the "Rights Agent"), to purchase from the Company at any time after the
Distribution Date (as such term is defined in the Right Agreement) and prior to
5:00 P.M. (New York time) on [________], 2011 [(unless such date is extended
prior thereto by the Board of Directors)] at the office or offices of the Rights
Agent designated for such purpose, or its successors as Rights Agent, one
one-hundredth of a fully paid, non-assessable share of Series A Junior
Participating Preferred Stock (the "Preferred Stock") of the Company, at a
purchase price of $_____ per one one-hundredth of a share (the "Purchase
Price"), upon presentation and surrender of this Right Certificate with the Form
of Election to Purchase and related Certificate duly executed. The number of
Rights evidenced by this Right Certificate (and the number of shares which may
be purchased upon exercise thereof) set forth above, and the Purchase Price per
share set forth above, are the number and Purchase Price as of ___________,
2001, based on the Preferred Stock as constituted at such date. The Company
reserves the right to require prior to the occurrence of a Triggering Event (as
such term is defined in the Rights Agreement) that a

--------

(1) The portion of the legend in brackets shall be inserted only if applicable
and shall replace the preceding sentence.

<PAGE>   49

number of Rights be exercised so that only whole shares of Preferred Stock will
be issued. Upon the occurrence of a Section 11(a)(ii) Event (as such term is
defined in the Right Agreement), if the Rights evidenced by this Right
Certificate are beneficially owned by (i) an Acquiring Person or an Affiliate or
Associate of any such Acquiring Person (as such terms are defined in the Rights
Agreement), (ii) a transferee of any such Acquiring Person, Associate or
Affiliate, or (iii) under certain circumstances specified in the Rights
Agreement, a transferee of a person who, after such transfer, became an
Acquiring Person, or an Affiliate or Associate of an Acquiring Person, such
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.

            As provided in the Rights Agreement, the Purchase Price and the
number and kind of shares of Preferred Stock or other securities, which may be
purchased upon the exercise of the Rights evidenced by this Right Certificate
are subject to modification and adjustment upon the happening of certain events,
including Triggering Events.

            This Right Certificate is subject to all of the terms, provisions
and conditions of the Rights Agreement, which terms, provisions 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 Right Certificates, which
limitations of rights include the temporary suspension of the exercisability of
such Rights under the specific circumstances set forth in the Rights Agreement.
Copies of the Rights Agreement are on file at the principal office of the Rights
Agent and are also available upon written request to the Company.

            This Right Certificate, with or without other Right Certificates,
upon surrender at the principal office or offices of the Rights Agent designated
for such purpose, may be exchanged for another Right Certificate or Right
Certificates of like tenor and date evidencing Rights entitling the holder to
purchase a like aggregate number of one one-hundredths of a share of Preferred
Stock as the Rights evidenced by the Right Certificate or Right Certificates
surrendered shall have entitled such holder to purchase. If this Right
Certificate shall be exercised in part, the holder shall be entitled to receive
upon surrender hereof another Right Certificate or Right 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 at its option at a
redemption price of $.01 per Right or may be exchanged, in whole or in part, for
shares of the Common Stock, or shares of preferred stock of the Company having
essentially the same value or economic rights as such shares. Immediately upon
the action of the Board of Directors of the Company authorizing any such
exchange, and without any further action or any notice, the Rights (other than
Rights which are not subject to such exchange) will terminate and the Rights
will only enable holders to receive the shares issuable upon such exchange.

            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-hundredth of a share of Preferred Stock, which
may, at the election of the Company, be evidenced by depositary receipts), but
in lieu thereof a cash payment will be made, as provided

<PAGE>   50

in the Rights Agreement. The Company, at its election, may require that a number
of Rights be exercised so that only whole shares of Preferred Stock would be
issued.

            No holder of this Rights Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of shares of Preferred
Stock or of any other securities of the Company 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 stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give consent to or withhold consent from any corporate
action, or, to receive notice of meetings or other actions affecting
stockholders (except as provided in the Rights Agreement), or to receive
dividends or subscription rights, or otherwise, until the Right or 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 ___________, ____

ATTEST:                                   INSTINET GROUP
                                          INCORPORATED

_____________________________             By_________________________________
Secretary                                    Title:

Countersigned:

[MELLON INVESTOR SERVICES LLC]

By____________________________
  Authorized Signature

<PAGE>   51

                  [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:  __________________, _____

                                          ___________________________________
                                          Signature

Signature Guaranteed:

                                   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);

            (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:  _______________, _____                  ______________________________
                                                Signature
Signature Guaranteed:

<PAGE>   52

                                     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.

<PAGE>   53

                          FORM OF ELECTION TO PURCHASE

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

To:   INSTINET GROUP INCORPORATED

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

Please insert social security
or other identifying number

_______________________________________________________________________________
                         (Please print name and address)

_______________________________________________________________________________

            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 insert social security
or other identifying number

_______________________________________________________________________________
                         (Please print name and address)

_______________________________________________________________________________
_______________________________________________________________________________

Dated:  _______________, _____                  ______________________________
                                                Signature

Signature Guaranteed:

                                   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);

<PAGE>   54

            (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:  _______________, _____                  ______________________________
                                                Signature
Signature Guaranteed:

<PAGE>   55

                                     NOTICE

            The signature to the foregoing Election to Purchase 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.

<PAGE>   56

                                                                       Exhibit C

                          SUMMARY OF RIGHTS TO PURCHASE
                                 PREFERRED STOCK

            On ______, 2001, the Board of Directors of Instinet Group
Incorporated (the "Company") declared a dividend distribution of one Right for
each outstanding share of Company Common Stock to stockholders of record at the
close of business on ________, 2001 (the "Record Date"). Each Right entitles the
registered holder to purchase from the Company a unit consisting of one
[one-hundredth] of a share (a "Unit") of Series A Junior Participating Preferred
Stock, par value [$0.01] per share (the "Series A Preferred Stock") at a
Purchase Price of $60 per Unit, subject to adjustment. The description and
terms of the Rights are set forth in a Rights Agreement (the "Rights Agreement")
between the Company and Mellon Investor Services, as Rights Agent.

Initially, the Rights will be attached to all Common Stock certificates
representing shares then outstanding, and no separate Rights Certificates will
be distributed. Subject to certain exceptions specified in the Rights Agreement,
the Rights will separate from the Common Stock and a Distribution Date will
occur upon the earlier of (i) 10 days following a public announcement that a
person or group of affiliated or associated persons (an "Acquiring Person") has
acquired beneficial ownership of 15% or more of the outstanding shares of Common
Stock other than as a result of repurchases of stock by the Company or certain
inadvertent actions by institutional or certain other stockholders or (ii) 10
business days (or such later date as may be determined by action of the Board
prior to such time as any Person becomes an Acquiring Person the Board shall
determine) following the commencement of a tender offer or exchange offer that
would result in a person or group becoming an Acquiring Person. Until the
Distribution Date, (i) the Rights will be evidenced by the Common Stock
certificates and will be transferred with and only with such Common Stock
certificates, (ii) new Common Stock certificates issued after the Record Date
will contain a notation incorporating the Rights Agreement by reference and
(iii) the surrender for transfer of any certificates for Common Stock
outstanding will also constitute the transfer of the Rights associated with the
Common Stock represented by such certificate. Pursuant to the Rights Agreement,
the Company reserves the right to require prior to the occurrence of a
Triggering Event (as defined below) that, upon any exercise of Rights, a number
of Rights be exercised so that only whole shares of Preferred Stock will be
issued. The rights agreement excludes Reuters Group PLC, a United Kingdom public
limited company and its majority-owned subsidiaries, as well as transferees of
at least 15% of our then outstanding common stock from Reuters and its
majority-owned subsidiaries and certain transferees of transferees, from being
considered acquiring persons until Reuters (or those specified transferees)
first cease to beneficially own 15% or more of our common stock then
outstanding. The rights plan also generally exempts persons who may be deemed to
beneficially own shares of Instinet due to their ownership of shares of Reuters
or its majority-owned subsidiaries, as well as certain persons who may be deemed
to beneficially own shares of Instinet due to their ownership of shares of
transferees of at least 15% of our then outstanding common stock from Reuters
and its majority-owned subsidiaries and certain transferees of transferees.

<PAGE>   57

            The Rights are not exercisable until the Distribution Date and will
expire at 5:00 P.M. (New York time) on May [_______], 2011, unless such date is
extended or the Rights are earlier redeemed or exchanged by the Company as
described below.

            As soon as practicable after the Distribution Date, Rights
Certificates will be mailed to holders of record of the Common Stock as of the
close of business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights. Except as otherwise determined by
the Board of Directors, only shares of Common Stock issued prior to the
Distribution Date will be issued with Rights.

            In the event that a Person becomes an Acquiring Person, except
pursuant to an offer for all outstanding shares of Common Stock which the
independent directors determine to be fair and not inadequate to and to
otherwise be in the best interests of the Company and its stockholders, after
receiving advice from one or more investment banking firms (a "Qualified
Offer"), each holder of a Right will thereafter have the right to receive, upon
exercise, Common Stock (or, in certain circumstances, cash, property or other
securities of the Company) having a value equal to two times the exercise price
of the Right. Notwithstanding any of the foregoing, following the occurrence of
the event 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.

            For example, at an exercise price of $60 per Right, each Right not
owned by an Acquiring Person (or by certain related parties) following an event
set forth in the preceding paragraph would entitle its holder to purchase $120
worth of Common Stock (or other consideration, as noted above) for $60. Assuming
that the Common Stock had a per share value of $12.50 at such time, the holder
of each valid Right would be entitled to purchase 9.6 shares of Common Stock
(without taking into account payment of cash in lieu of fractional shares for
$60.

            In the event that, at any time following the time that a Person
became an Acquiring Person, (i) the Company engages in a merger or other
business combination transaction in which the Company is not the surviving
corporation (other than with an entity which acquired the shares pursuant to a
Qualified Offer), (ii) the Company engages in a merger or other business
combination transaction in which the Company is the surviving corporation and
the Common Stock of the Company is changed or exchanged, or (iii) 50% or more of
the Company's assets, cash flow or earning power is sold or transferred, each
holder of a Right (other than any such transactions with certain exempt persons)
(except Rights which have previously been voided as set forth above) shall
thereafter have the right to receive, upon exercise, common stock of the
acquiring company having a value equal to two times the exercise price of the
Right.

            At any time after a person becomes an Acquiring Person and prior to
the acquisition by a person or group of a majority of the outstanding Common
Stock, the Board may exchange the Rights (other than Rights owned by such person
or group which have become void), in whole or in part, at an exchange ratio of
one share of Common Stock, or one one-hundredth of a share of Preferred Stock
(or of a share of a class or series of the Company's preferred stock having
equivalent rights, preferences and privileges), per Right (subject to
adjustment).

<PAGE>   58

            At any time until a Person becomes an Acquiring Person, the Company
may redeem the Rights in whole, but not in part, at a price of $.01 per Right
(payable in cash, Common Stock or other consideration deemed appropriate by the
Board of Directors). Immediately upon the time of the effectiveness of the
redemption of the Rights (or such earlier time as may be determined by the Board
of Directors in the action ordering redemption of the Rights), the Rights will
terminate and the only right of the holders of Rights will be to receive the
$.01 redemption price. 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 Common Stock (or other consideration) of
the Company or for common stock of the acquiring company or in the event of the
redemption of the Rights as set forth above.

            The terms of the Rights may be amended by the Board of Directors of
the Company without the consent of the holders of the Rights, except that from
and after such time as any person becomes an Acquiring Person no such amendment
may adversely affect the interests of the holders of the Rights (other than the
Acquiring Person and its Affiliates and Associates).

            A copy of the Rights Agreement has been filed with the Securities
and Exchange Commission as an Exhibit to a Registration Statement on Form 8-K
dated _________, 2001.

            A copy of the Rights Agreement is available free of charge from the
Rights Agent. This summary description of the Rights does not purport to be
complete and is qualified in its entirety by reference to the Rights Agreement,
which is incorporated herein by reference.

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