SECURITY DYNAMICS TECHNOLOGIES INC /DE/
8-A12G, 1999-07-23
COMPUTER PERIPHERAL EQUIPMENT, NEC
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<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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

                                    FORM 8-A

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

                      SECURITY DYNAMICS TECHNOLOGIES, INC.

             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)



             Delaware                                    04-2916506
     -----------------------                           -------------
     (State of incorporation                           (IRS Employer
         or organization)                            Identification No.)

             36 Crosby Drive
             Bedford, MA                                   01730
- -----------------------------------------                ----------
(Address of principal executive officers)                (Zip Code)

<TABLE>
<S>                                                  <C>
If this form relates to the registration             If this form relates to the registration
of a class of securities pursuant to                 of a class of securities pursuant to
Section 12(b) of the Exchange Act and                Section 12(g) of the Exchange Act and
is effective pursuant to General                     is effective pursuant to General
Instruction A.(c), please check the                  Instruction A.(d), please check the
following box: [   ]                                 following box: [ X ]
</TABLE>

     Securities to be registered pursuant to Section 12(b) of the Act: None


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


                          Common Stock Purchase Rights
- --------------------------------------------------------------------------------
                                (Title of Class)



<PAGE>   2




Item 1.  DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED.

         On July 20, 1999, the Board of Directors of Security Dynamics
Technologies, Inc. (the "Company"), declared a dividend of one Right for each
outstanding share of the Company's common stock, $.01 par value per share
("Common Stock"), to stockholders of record at the close of business on July 30,
1999 (the "Record Date"). Each Right entitles the registered holder to purchase
from the Company one share of Common Stock, at a Purchase Price of $125.00 in
cash, subject to adjustment. The description and terms of the Rights are set
forth in a Rights Agreement dated as of July 20, 1999 (the "Rights Agreement")
between the Company and State Street Bank and Trust Company, 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. The Rights will separate from the Common Stock and a
Distribution Date will occur upon the earlier of (i) ten business days (or such
later date as may be determined by the Board of Directors of the Company)
following the later of (a) the first date of a public announcement that a person
or group of affiliated or associated persons (an "Acquiring Person") has
acquired, or obtained the right to acquire, beneficial ownership of 15% or more
of the outstanding shares of Common Stock or (b) the first date on which an
executive officer of the Company has actual knowledge that an Acquiring Person
has become such (the "Stock Acquisition Date"), or (ii) ten business days (or
such later date as may be determined by the Board of Directors of the Company)
following the commencement of a tender offer or exchange offer that would result
in a person or group beneficially owning 15% or more of such outstanding shares
of Common Stock. Until the Distribution Date (or earlier redemption or
expiration of the rights), (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, even without such notation, will also constitute the transfer of
the Rights associated with the Common Stock represented by such certificate.

         The Rights are not exercisable until the Distribution Date and will
expire upon the close of business on July 20, 2009 (the "Final Expiration Date")
unless earlier redeemed or exchanged as described below. As soon as practicable
after the Distribution Date, separate 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,
and except for shares of Common Stock issued upon exercise, conversion or
exchange of then outstanding options, convertible or exchangeable securities or
other contingent obligations to issue shares, only shares of Common Stock issued
prior to the Distribution Date will be issued with Rights.

                                        2

<PAGE>   3



         In the event that any Person becomes an Acquiring Person, then promptly
following the first occurrence of such event, each holder of a Right (except as
provided below and in Section 7(e) of the Rights Agreement) shall thereafter
have the right to receive, upon exercise, that number of shares of Common Stock
of the Company (or, in certain circumstances, cash, property or other securities
of the Company) which equals the exercise price of the Right divided by 50% of
the current market price (as defined in the Rights Agreement) per share of
Common Stock at the date of the occurrence of such event. However, Rights are
not exercisable following such event until such time as the Rights are no longer
redeemable by the Company as described below. Notwithstanding any of the
foregoing, following the occurrence of such event, 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. The event
summarized in this paragraph is referred to as a "Section 11(a)(ii) Event."

         In the event that, at any time after any Person becomes an Acquiring
Person, (i) the Company is consolidated with, or merged with and into, another
entity and the Company is not the surviving entity of such consolidation or
merger or if the Company is the surviving entity, but shares of its outstanding
Common Stock are changed or exchanged for stock or securities (of any other
person) or cash or any other property, or (ii) 50% or more of the Company's
assets or earning power is sold or transferred, each holder of a Right (except
Rights which previously have been voided as set forth above) shall thereafter
have the right to receive, upon exercise, that number of shares of common stock
of the acquiring company which equals the exercise price of the Right divided by
50% of the current market price of such common stock at the date of the
occurrence of the event. The events summarized in this paragraph are referred to
as "Section 13 Events." A Section 11(a)(ii) Event and Section 13 Events are
collectively referred to as "Triggering Events."

         At any time after the occurrence of a Section 11(a)(ii) Event, subject
to certain conditions, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such Acquiring Person which have become
void), in whole or in part, at an exchange ratio of one share of Common Stock
per Right (subject to adjustment).

         The Purchase Price payable, and the number of shares of Common Stock or
other securities or property issuable, upon exercise of the Rights are subject
to adjustment from time to time to prevent dilution (i) in the event of a stock
dividend on, or a subdivision, combination or reclassification of, the Common
Stock, (ii) if holders of the Common Stock are granted certain rights or
warrants to subscribe for Common Stock or convertible securities at less than
the then-current market price of the Common Stock, or (iii) upon the
distribution to holders of the Common Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends paid out of earnings or
retained earnings) or of subscription rights or warrants (other than those
referred to above). The number of Rights associated with each share of Common
Stock is also subject to adjustment in the event of a stock split of the Common
Stock or a stock

                                        3

<PAGE>   4



dividend on the Common Stock payable in Common Stock or subdivisions,
consolidations or combinations of the Common Stock occurring, in any such case,
prior to the Distribution Date.

         With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. No fractional shares of Common Stock will be issued and, in lieu thereof,
an adjustment in cash will be made based on the market price of the Common Stock
on the last trading date prior to the date of exercise.

         At any time prior to the earlier of (i) the tenth Business Day (or such
later date as may be determined by the Board of Directors of the Company) after
the Stock Acquisition Date, or (ii) the Final Expiration Date, the Company may
redeem the Rights in whole, but not in part, at a price of $.001 per Right (the
"Redemption Price"), payable in cash or stock. Immediately upon the action of
the Board of Directors ordering redemption of the Rights, the Rights will
terminate and the only right of the holders of Rights will be to receive the
Redemption Price. The Rights may also be redeemable following certain other
circumstances specified in the Rights Agreement.

         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 as set forth above.

         Subject to certain exceptions, any of the provisions of the Rights
Agreement may be amended by the Board of Directors of the Company prior to such
time as the Rights are no longer redeemable.

         As of July 20, 1999, there were 42,242,461 shares of Common Stock
outstanding, reserves for the issuance of approximately 15,000,000 shares and
1,039 treasury shares. Stockholders will receive one Right for each outstanding
share of Common Stock held by them as of July 30, 1999. As long as the Rights
are attached to the Common Stock, one additional Right (as such number may be
adjusted pursuant to the provisions of the Rights Agreement) shall be deemed to
be delivered for each share of Common Stock issued or delivered by the Company
in the future. Sixty million (60,000,000) shares of Common Stock are initially
reserved for issuance upon exercise of the Rights.

         The Rights have certain anti-takeover effects. The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
without conditioning the offer on a substantial number of Rights being acquired.
The Rights, however, should not prevent a takeover bid by a prospective offeror
willing to make an

                                        4

<PAGE>   5



offer at a fair price and otherwise in the best interests of the Company and its
stockholders or willing to negotiate with the Board of Directors. The Rights
also should not interfere with any merger or other business combination approved
by the Board of Directors of the Company.

         The Rights Agreement between the Company and the Rights Agent
specifying the terms of the Rights, which includes as Exhibit A the Form of
Rights Certificate and as Exhibit B the Summary of Rights to Purchase Common
Stock, is attached hereto as Exhibit 1 and is incorporated herein by reference.
The foregoing description of the Rights does not purport to be complete and is
qualified in its entirety by reference to such Exhibits.

Item 2.  EXHIBITS.

Exhibit
Number            Description
- ------            -----------

  1         Rights Agreement dated as of July 20, 1999 between Security Dynamics
            Technologies, Inc. and State Street Bank and Trust Company, which
            includes as Exhibit A the Form of Rights Certificate, and as Exhibit
            B the Summary of Rights to Purchase Common Stock. Pursuant to the
            Rights Agreement, Rights Certificates will not be mailed until after
            the Distribution Date (as that term is defined in the Rights
            Agreement).


                                        5

<PAGE>   6



                                    SIGNATURE


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


Date: July 23, 1999                   SECURITY DYNAMICS TECHNOLOGIES, INC.



                                      By:      /s/ Arthur W. Coviello, Jr.
                                         ---------------------------------------
                                      Name:   Arthur W. Coviello, Jr.
                                      Title:  President



                                        6

<PAGE>   7


                                  EXHIBIT INDEX


Exhibit
Number                                Description
- ------                                -----------

  1         Rights Agreement dated as of July 20, 1999 between Security Dynamics
            Technologies, Inc. and State Street Bank and Trust Company, which
            includes as Exhibit A the Form of Rights Certificate, and as Exhibit
            B the Summary of Rights to Purchase Common Stock.




                                        7


<PAGE>   1



                                                                       EXHIBIT 1




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



                      SECURITY DYNAMICS TECHNOLOGIES, INC.

                                       and

                       STATE STREET BANK AND TRUST COMPANY

                                  Rights Agent

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



                                Rights Agreement

                            Dated as of July 20, 1999



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



<PAGE>   2



                                RIGHTS AGREEMENT


         RIGHTS AGREEMENT, dated as of July 20, 1999 (the "Agreement"), between
Security Dynamics Technologies, Inc., a Delaware corporation (the "Company"),
and State Street Bank and Trust Company, a Massachusetts trust company, as
Rights Agent (the "Rights Agent").

                                   WITNESSETH
                                   ----------

         WHEREAS, on July 20, 1999 the Board of Directors of the Company (the
"Board") authorized and declared a dividend distribution of one Right for each
share of Common Stock (as hereinafter defined) of the Company outstanding at the
close of business on July 30, 1999 (the "Record Date"), and authorized the
issuance of one Right (as such number may hereinafter be adjusted pursuant to
the provisions of Sections 11(i) or 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 earlier of the Distribution Date
or the Expiration Date, each Right initially representing the right to purchase
one share of Common Stock of the Company upon the terms and subject to the
conditions hereinafter set forth (the "Rights");

         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 Affiliates and Associates of such Person, shall be the
Beneficial Owner of 15% or more of the shares of Common Stock then outstanding,
but shall not include (i) the Company, (ii) any Subsidiary of the Company, (iii)
any employee benefit plan of the Company or of any Subsidiary of the Company, or
(iv) any Person organized, appointed or established by the Company for or
pursuant to the terms of any such plan. Notwithstanding the foregoing, (x) if
the Board determines in good faith that a Person who would otherwise be an
"Acquiring Person," as defined pursuant to the foregoing provisions of this
paragraph (a), has become such inadvertently, and such Person divests as
promptly as practicable a sufficient number of shares of Common Stock so that
such Person would no longer be an "Acquiring Person," as defined pursuant to the
foregoing provisions of this paragraph (a), then such Person shall not be deemed
to be an "Acquiring Person" for any purposes of this Agreement unless and until
such Person shall again become an "Acquiring Person" and (y) any such Person who
becomes the Beneficial Owner of fifteen percent (15%) or more of the shares of
the Common Stock then outstanding as a result of a reduction in the number of
shares of Common Stock then outstanding due to the repurchase of shares of
Common Stock by the Company shall not be deemed to be an "Acquiring Person" for
any purposes of this Agreement unless and until such Person, after becoming
aware that such Person has become the



<PAGE>   3



Beneficial Owner of fifteen percent (15%) or more of the shares of Common Stock
then outstanding, acquires beneficial ownership of any additional shares of
Common Stock representing one percent (1%) or more of the shares of Common Stock
then outstanding.

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

                  (c) "Affiliate" and "Associate" shall have the respective
meanings ascribed to such terms in Rule 12b-2 of the General Rules and
Regulations under the Securities Exchange Act of 1934, as amended, and in effect
on the date of this Agreement (the "Exchange Act").

                  (d) 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, beneficially owns or 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 (other than customary agreements with and between
         underwriters and selling group members with respect to a bona fide
         public offering of securities), whether or not in writing, or upon the
         exercise of conversion rights, exchange rights, other 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, or (B)
         securities issuable upon exercise of Rights at any time prior to the
         occurrence of a Triggering Event, 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 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, or any
         comparable or successor rule), including pursuant to any agreement,
         arrangement or understanding (other than customary agreements with and
         between underwriters and selling group members with respect to a bona
         fide public offering of securities), 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

                                       -2-

<PAGE>   4



         proxy or consent given in response to a public proxy or consent
         solicitation made pursuant to, and in accordance with, the applicable
         provisions of the General Rules and Regulations under the Exchange Act,
         and (B) is not then 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 (other than customary
         agreements with and between underwriters and selling group members with
         respect to a bona fide public offering of securities) whether or not in
         writing, for the purpose of acquiring, holding, voting (except pursuant
         to a revocable proxy or consent as described in the proviso to
         subparagraph (ii) of this paragraph (d)) or disposing of any voting
         securities of the Company.

         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.

                  (e) "Business Day" shall mean any day other than a Saturday,
Sunday or a day on which banking institutions in The Commonwealth of
Massachusetts are authorized or obligated by law or executive order to close.

                  (f) "Close of business" on any given date shall mean 5:00
p.m., Boston time, on such date; provided, however, that if such date is not a
Business Day it shall mean 5:00 p.m., Boston time, on the next succeeding
Business Day.

                  (g) "Common Stock" shall mean the common stock, $.01 par
value, 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.

                  (h) "Common stock equivalents" shall have the meaning set
forth in Section 11(a)(iii) hereof.

                  (i) "Current market price" shall have the meaning set forth in
Section 11(d)(i) hereof.


                                       -3-

<PAGE>   5



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

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

                  (l) "Exchange Act" shall have the meaning set forth in Section
1(c) hereof.

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

                  (n) "Final Expiration Date" shall mean the close of business
on July 20, 2009.

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

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

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

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

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

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

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

                  (v) "Rights Certificates" shall have the meaning set forth in
Section 3(a) hereof.

                  (w) "Section 11(a)(ii) Event" shall mean an acquisition of
Common Stock described in the first sentence of Section 11(a)(ii) hereof.

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

                                       -4-

<PAGE>   6



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

                  (z) "Spread" shall have the meaning set forth in Section
11(a)(iii) hereof.

                  (aa) "Stock Acquisition Date" shall mean the later of (i) the
first date of public announcement (which, for purposes of this definition, shall
include, without limitation, a report filed 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 first date on which an executive officer of the Company
has actual knowledge that an Acquiring Person has become such.

                  (bb) "Subsidiary" shall mean, with reference to any Person,
(i) 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
and (ii) any other entity of which a majority of the voting power of the equity
securities or a majority of the equity interest is beneficially owned, directly
or indirectly, by such Person.

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

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

                  (ee) "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 and the holders of the Rights (who,
in accordance with Section 3 hereof, shall prior to the Distribution Date also
be the holders of the Common Stock) 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 (10) days' prior 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.

                  (a) Until the earlier of (i) the close of business on the
tenth Business Day (or such later date as may be determined by the Board) after
the Stock Acquisition Date (or, if the tenth Business Day after the Stock
Acquisition Date occurs before the Record Date, the close of business on the
Record Date), or (ii) the close of business on the tenth

                                       -5-

<PAGE>   7



Business Day (or such later date as may be determined by the Board) 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 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 be the Beneficial Owner of 15% or more of the shares of Common Stock then
outstanding (the earlier of (i) and (ii) being herein referred to as the
"Distribution Date"), (x) the Rights will be evidenced 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 underlying shares of
Common Stock (including a transfer to the Company). As soon as practicable after
the Distribution Date, the Rights Agent will send by first-class, insured,
postage prepaid mail, to each record holder of 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 rights certificates, in substantially the
form of EXHIBIT A 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 Sections 11(i) or 11(p) hereof, at the time of
distribution of the Right 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.

                  (b) As promptly as practicable following the Record Date, the
Company will send a copy of a Summary of Rights to Purchase Common Stock, in
substantially the form attached hereto as EXHIBIT B, by first-class, postage
prepaid mail, to each record holder of the 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. With respect to certificates for the Common Stock outstanding as
of the close of business on the Record Date, until the Distribution Date, the
Rights will be evidenced by such certificates for the Common Stock and the
registered holders of the Common Stock shall also be the registered holders of
the associated Rights.

                  (c) Rights shall be issued (i) in respect of all shares of
Common Stock that are issued (either as an original issuance or from the
Company's treasury) after the Record Date but prior to the earlier of the
Distribution Date or the Expiration Date and (ii) in connection with the
issuance or sale of Common Stock following the Distribution Date and prior to
the Expiration Date upon the exercise of stock options, or upon the exercise,
conversion or exchange of securities, granted or issued by the Company prior to
the Distribution Date. Certificates representing such shares of Common Stock

                                       -6-

<PAGE>   8



(including, without limitation, certificates issued upon transfer or exchange 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 Security
     Dynamics Technologies, Inc. (the "Company") and State Street Bank and Trust
     Company (the "Rights Agent") dated as of July 20, 1999, as the same may be
     amended, restated or renewed from time to time (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 any Affiliate
     or Associates 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.

                  (d) Until the earlier of the Distribution Date or the
Expiration Date, the transfer of any certificates representing shares of Common
Stock in respect of which Rights have been issued shall also constitute the
transfer of the Rights associated with such shares of Common Stock. In the event
that the Company purchases or acquires any shares of Common Stock after the
Record Date but prior to the Distribution Date, any Rights associated with such
shares of Common Stock shall be deemed cancelled and retired so that the Company
shall not be entitled to exercise any Rights associated with the shares of
Common Stock which are no longer outstanding.

         Section 4. FORM OF RIGHTS CERTIFICATES.

                  (a) The Rights Certificates (and the forms of election to
purchase, certification and assignment to be printed on the reverse thereof)
shall each be substantially in the form set forth in EXHIBIT A hereto and may
have such marks of identification or designation and such legends, summaries or
endorsements printed thereon as the Company may deem appropriate and as are not
inconsistent with the

                                       -7-

<PAGE>   9



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 or over-the-counter market on which the
Rights may from time to time be listed, or to conform to usage. Subject to the
provisions of Section 11 and Section 22 hereof, the Rights Certificates,
whenever distributed, shall entitle the holders thereof to purchase such number
of shares of Common Stock as shall be set forth therein at the price set forth
therein (such exercise price per 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,
Section 11(i), Section 11(p) or Section 22 hereof that represents Rights
beneficially owned by persons known to be: (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 the Acquiring Person or to
any Person with whom such Acquiring Person has any continuing agreement,
arrangement or understanding (whether or not in writing) regarding the
transferred Rights or (B) a transfer which the Board has determined is part of a
plan, arrangement or understanding (whether or not in writing) that has as a
primary purpose or effect avoidance of Section 7(e) hereof, and 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 such Agreement.

         Section 5. COUNTERSIGNATURE AND REGISTRATION.

                  (a) The Rights Certificates shall be executed on behalf of the
Company by its Chief Executive Officer, its President, any Executive Vice
President, any Senior Vice President or any Vice President and by its Treasurer
or any Assistant Treasurer, 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 manually
countersigned by the Rights Agent and shall not be valid

                                       -8-

<PAGE>   10



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, the Rights Agent shall
keep or cause to be kept, at its office 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, the Certificate number 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 have become void pursuant to Section 7(e) hereof or
that have been exchanged pursuant to Section 24 hereof) may be transferred,
split up, combined or exchanged for another Rights Certificate or Certificates,
entitling the registered holder to purchase a like number of shares of Common
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 entitled 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,
with the form of assignment and certificate appropriately executed, at the
office of the Rights Agent designated for such purpose. Neither the Rights Agent
nor the Company shall be obligated to take any action whatsoever with respect to
the transfer of any such surrendered Rights Certificate until the registered
holder shall have completed and 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
shall reasonably request. Thereupon the Rights Agent shall, subject to Section
4(b), Section 7(e) and Section 14 hereof,

                                       -9-

<PAGE>   11



countersign and deliver to the Person entitled thereto a Rights Certificate or
Rights Certificates, as the case may be, as so requested. The Company may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer, split up, combination or
exchange of Rights Certificates.

                  (b) 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 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, 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)(iii) and Section 23
hereof) in whole or in part at any time after the Distribution Date upon
surrender of the Rights Certificate, with the form of election to purchase and
the certificate on the reverse side thereof duly executed, to the Rights Agent
at the office of the Rights Agent designated for such purpose, together with
payment of the aggregate Purchase Price with respect to the total number of
shares of Common Stock (or other shares, securities, cash or other assets, as
the case may be) as to which such surrendered Rights are then exercisable, at or
prior to the earliest of (i) the Final Expiration Date, (ii) the time at which
the Rights are redeemed as provided in Section 23 hereof (the "Redemption Date")
or (iii) the time at which such Rights are exchanged as provided in Section 24
hereof (the earliest of (i), (ii) and (iii) being herein referred to as the
"Expiration Date").

                  (b) The Purchase Price for each share of Common Stock pursuant
to the exercise of a Right shall initially be $125.00 and shall be subject to
adjustment from time to time as provided in Sections 11 and 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 share of Common 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 transfer tax, the Rights Agent shall, subject
to Section 20(k) hereof, thereupon promptly (i) (A) requisition from any
transfer agent of the shares of Common Stock (or make available, if the Rights

                                      -10-

<PAGE>   12



Agent is the transfer agent for such shares) certificates for the total number
of shares of Common Stock to be purchased and the Company hereby authorizes its
transfer agent to comply with such requests, or (B) if the Company shall have
elected to deposit the total number of shares of Common Stock issuable upon
exercise of the Rights hereunder with a depositary agent, requisition from the
depositary agent depositary receipts representing such number of shares of
Common Stock as are to be purchased (in which case certificates for the shares
of Common Stock represented by such receipts shall be deposited by the transfer
agent with the depositary agent) and the Company hereby directs the depositary
agent to comply with such requests, (ii) requisition from the Company the amount
of cash, if any, to be paid in lieu of fractional shares of Common Stock 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) may be made in cash or by certified bank
check or money order payable to the order of the Company. In the event that the
Company is obligated to issue other securities of the Company, pay cash and/or
distribute other property pursuant to Section 11(a) hereof, the Company shall
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
appropriate.

                  (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.

                  (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 (whether or not in writing) regarding the transferred Rights or
(B) a transfer which the Board has determined is part of a plan, arrangement or
understanding (whether or not in writing) that has as a primary purpose or
effect avoidance of this Section 7(e), shall become null and void without any
further action and no holder of

                                      -11-

<PAGE>   13



such Rights shall have any rights whatsoever with respect to such Rights,
whether under any provision of this Agreement or otherwise. The Company shall
use all reasonable efforts to insure that the provisions of this Section 7(e)
and Section 4(b) hereof are complied with, but shall have no liability to any
holder of Rights Certificates or other Person as a result of its failure to make
any determinations with respect to an Acquiring Person or its Affiliates,
Associates or transferees hereunder.

                  (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 transfer or exercise as set forth in this Section 7 unless such
registered holder shall have (i) completed and signed the certificate following
the form of assignment or election to purchase set forth on the reverse side of
the Rights Certificate surrendered for such assignment or exercise, and (ii)
provided such additional evidence of the identity of the Beneficial Owner (or
former Beneficial Owner) or Affiliates or Associates thereof as the Company
shall reasonably request.

         Section 8. CANCELLATION AND DESTRUCTION OF RIGHTS CERTIFICATES. All
Rights Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered to the Rights Agent, shall be cancelled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
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, or shall, at the written request
of the Company, destroy such cancelled Rights Certificates, and in such case
shall deliver a certificate of destruction thereof to the Company.

         Section 9. RESERVATION AND AVAILABILITY OF CAPITAL STOCK.

                  (a) Subject to the provisions of Section 11(f), the Company
covenants and agrees that it will cause to be reserved and kept available out of
its authorized and unissued shares of Common Stock or out of its authorized and
issued shares of Common Stock held in its treasury (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
of Common Stock and/or other securities held in its treasury, as the case may
be), the number of shares of Common Stock (and, following the occurrence of a
Triggering Event, Common Stock and/or other securities, as the case may be)
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.


                                      -12-

<PAGE>   14



                  (b) So long as the shares of Common Stock (and, following the
occurrence of a Triggering Event, Common Stock and/or other securities, as the
case may be) issuable and deliverable upon the exercise of the Rights may be
listed on any national securities exchange or automated quotation system, 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 so listed
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, or as soon as is required by law following the
Distribution Date, as the case may be, a registration statement under the Act,
with respect to the Common Stock or other 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 shares of Common Stock or
other securities, and (B) the Expiration Date. 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 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.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction unless the requisite registration
or qualification in such jurisdiction shall have been effected or obtained.

                  (d) The Company covenants and agrees that it will take all
such action as may be necessary to ensure that all shares of Common Stock (and,
following the occurrence of a Triggering Event, Common Stock and/or other
securities, as the case may be) 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.

                  (e) The Company further covenants and agrees that it will pay
when due and payable any and all federal and state transfer taxes and charges
that may be payable in respect of the issuance or delivery of the Rights
Certificates and of any certificates for shares of Common Stock (or other
securities, as the case may be) upon the exercise of Rights. The Company shall
not, however, be required (i) to pay any

                                      -13-

<PAGE>   15



transfer tax that may be payable in respect of any transfer or delivery of
Rights Certificates to a Person other than, or the issuance or delivery shares
of Common Stock (or other securities, as the case may be) in respect of a name
other than that of, the registered holder of the Rights Certificate evidencing
Rights surrendered for exercise or (ii) to issue or deliver any certificates for
shares of Common Stock (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 shall have been paid (any such tax being payable by the holder of such
Rights Certificate at the time of surrender) or until it has been established to
the Company's satisfaction that no such tax is due.

         Section 10. COMMON STOCK RECORD DATE. Each Person in whose name any
certificate for shares of Common Stock (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 shares of Common Stock (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 transfer
taxes) was made; provided, however, that if the date of such surrender and
payment is a date upon which the Common Stock (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 on, and such certificate shall be
dated, the next succeeding Business Day on which the Common Stock (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, as such, shall not be entitled to any rights of a stockholder of
the Company with respect to securities for which the Rights shall be
exercisable, including, without limitation, the right to vote, to receive
dividends or other distributions or to exercise any preemptive rights, and shall
not be entitled to receive any notice of any proceedings of the Company, except
as provided herein.

         Section 11. ADJUSTMENT OF PURCHASE PRICE, NUMBER AND KIND OF SHARES OR
NUMBER OF RIGHTS. The Purchase Price, the number and kind of 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 Common Stock
         payable in shares of Common Stock, (B) subdivide the outstanding Common
         Stock, (C) combine the outstanding Common Stock into a smaller number
         of shares, or (D) issue any shares of its capital stock in a
         reclassification of the Common 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 date for such
         dividend or of the effective date of such subdivision, combination or
         reclassification, and the number and kind of shares

                                      -14-

<PAGE>   16



         of Common 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 Common 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 Common Stock transfer books of the Company were open, he
         would have owned upon such exercise and been entitled to receive by
         virtue of such dividend, subdivision, combination or reclassification;
         provided, however, that if the record date for any such dividend,
         subdivision, combination or reclassification shall occur prior to the
         Distribution Date, the Company shall make an appropriate adjustment to
         the Purchase Price (taking into account any additional Rights which may
         be issued as a result of such dividend, subdivision, combination or
         reclassification), in lieu of adjusting (as described above) the number
         of shares of Common Stock (or other capital stock, as the case may be)
         issuable upon exercise of the Rights and, in accordance with Section
         3(c), but subject to Sections 11(i) and 11(p), each additional share of
         Common Stock issued in connection with such dividend, subdivision or
         reclassification shall have associated with it one Right, so that
         immediately after such event each share of Common Stock (or other
         capital stock) will have exactly one Right associated with it. If an
         event occurs that 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) Subject to Section 24 of this Agreement, in the event
         that any Person, alone or together with its Affiliates or Associates,
         becomes an Acquiring Person, then, promptly following the first
         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 (subject to the last
         sentence of Section 23(a)), upon exercise thereof at the then current
         Purchase Price in accordance with the terms of this Agreement, such
         number of shares of Common Stock of the Company that equals the result
         obtained by (x) multiplying the then current Purchase Price by the then
         number of shares of Common 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
         that are authorized by the Company's Certificate of Incorporation but
         not outstanding or reserved for issuance for purposes other than upon
         exercise of the Rights are not sufficient to permit the exercise in
         full of the Rights in accordance with the

                                      -15-

<PAGE>   17



         foregoing subparagraph (ii) of this Section 11(a), the Company shall:
         (A) determine the excess of (1) the value of the Adjustment Shares
         issuable upon the exercise of a Right (the "Current Value") over (2)
         the Purchase Price (such excess, the "Spread"), and (B) with respect to
         each Right, make adequate provision to substitute for the Adjustment
         Shares, upon payment of the applicable Purchase Price, (1) cash, (2) a
         reduction in the Purchase Price, (3) other equity securities of the
         Company (including, without limitation, shares, or units of shares, of
         preferred stock which the Board has deemed to have the same value as
         shares of Common Stock (such shares of preferred stock, "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, 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, 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"), 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.
         If the Board shall determine 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 stockholder approval for the
         authorization of such additional shares (such period, as it may be
         extended, the "Substitution Period"). To the extent that the Company
         determines that some action need be taken pursuant to the first and/or
         second sentences of this Section 11(a)(iii), the Company (x) shall
         provide, subject to Section 7(e) hereof, that such action shall apply
         uniformly to all outstanding Rights, and (y) may suspend the
         exercisability of the Rights until the expiration of the Substitution
         Period in order to seek any 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. For purposes of this Section
         11(a)(iii), the value of the Common Stock shall be the current market
         price (as determined pursuant to Section 11(d) hereof) per share of the
         Common Stock on the Section 11(a)(ii) Trigger Date and the value of any
         "common stock equivalent" shall be deemed to have the same value as the
         Common Stock on such date.


                                      -16-

<PAGE>   18



                  (b) In case the Company shall fix a record date for the
issuance of rights, options or warrants to all holders of Common Stock entitling
them to subscribe for or purchase (for a period expiring within forty-five (45)
calendar days after such record date) Common Stock (or shares having the same
rights, privileges and preferences as the shares of Common Stock ("equivalent
common stock")) or securities convertible into Common Stock or equivalent common
stock at a price per share of Common Stock or per share of equivalent common
stock (or having a conversion price per share, if a security convertible into
Common Stock or equivalent common stock) less than the current market price (as
determined pursuant to Section 11(d) hereof) per share of Common 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 Common Stock outstanding on such record date, plus the number of shares of
Common Stock which the aggregate offering price of the total number of shares of
Common Stock and/or equivalent common 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 Common Stock outstanding on such record
date, plus the number of additional shares of Common Stock and/or equivalent
common 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 conclusive for all
purposes. Shares of Common Stock owned by or held for the account of the 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, options 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 Common 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 Common Stock, but including
any dividend payable in stock other than Common Stock) or 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 Common 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 and shall be conclusive for

                                      -17-

<PAGE>   19



all purposes) 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 Common Stock and the denominator of which shall be such current market
price (as determined pursuant to Section 11(d) hereof) per share of Common Stock
on such record date. 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) 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 (as such term is hereinafter defined) immediately prior
to 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 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 prior to the expiration of the requisite thirty (30) Trading Day or ten (10)
Trading Day period, as set forth above, after the ex-dividend date for such
dividend or distribution, or the record date for such subdivision, combination
or reclassification, 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 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 with respect to securities listed or admitted to
trading on the principal national securities exchange on which the shares of
Common Stock are listed or admitted to trading or, if the shares of Common Stock
are not listed or admitted to trading on any national securities exchange, the
last quoted price or, if not so quoted, the average of the high bid and the low
asked prices in the over-the-counter market, as reported by The Nasdaq Stock
Market, Inc. ("Nasdaq") or such other system then in use, or, if on any such
date the shares of Common Stock are not quoted by any such organization, the
average of the closing bid and asked prices as furnished by a professional
market maker making a market in the 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 Nasdaq or any 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

                                      -18-

<PAGE>   20



Nasdaq or 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.

                  (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 security, 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 securities other than Common Stock,
thereafter the number of such other securities so receivable upon exercise of
any Right and the Purchase Price thereof shall be subject to adjustment from
time to time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Common 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 Common Stock shall apply on like terms
to any such other securities; provided, however, that the Company shall not be
liable for its inability to reserve and keep available for issuance upon
exercise of the Rights pursuant to Section 11(a)(ii) a number of shares of
Common Stock greater than the number then authorized by the Company's
Certificate of Incorporation but not outstanding or reserved for other purposes.

                  (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 shares of Common 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 Sections 11(i) or 11(p), 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
shares of Common Stock (calculated to the nearest ten-thousandth) obtained by
(i) multiplying (x) the number of shares covered by a Right immediately prior to
this adjustment, by (y) the Purchase Price in effect

                                      -19-

<PAGE>   21



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 shares of Common 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 shares of Common 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 ten-thousandth) obtained by dividing the
Purchase Price in effect immediately prior to adjustment of the Purchase Price
by the Purchase Price in effect immediately after adjustment of the Purchase
Price. The Company shall make a public announcement of its election to adjust
the number of Rights, indicating the record date for the adjustment, and, if
known at the time, the amount of the adjustment to be made. This record date may
be the date on which the Purchase Price is adjusted or any day thereafter, but,
if the Rights Certificates have been issued, shall be at least ten (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 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 shares of Common Stock issuable upon the exercise of the
Rights, the Rights Certificates theretofore and thereafter issued may continue
to express the Purchase Price per share and the number of shares 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 par value, if any, of the shares of
Common 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

                                      -20-

<PAGE>   22



and legally issue shares of fully paid and nonassessable Common Stock at such
adjusted Purchase Price.

                  (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuance to the holder of any Right exercised after such record date
the number of shares of Common Stock and other capital stock or securities of
the Company, if any, issuable upon such exercise over and above the shares of
Common 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 of Common Stock and other capital stock or
securities upon the occurrence of the event requiring such adjustment.

                  (m) Anything in this Section 11 to the contrary
notwithstanding, the Company shall be entitled to make such reductions in the
Purchase Price, in addition to those adjustments expressly required by this
Section 11, as and to the extent that in their good faith judgment the Board
shall determine to be advisable in order that any (i) consolidation or
subdivision of the Common Stock, (ii) issuance wholly for cash of any shares of
Common Stock at less than the current market price, (iii) issuance wholly for
cash of shares of Common Stock or securities which by their terms are
convertible into or exchangeable for shares of Common 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 Common 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 that 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 or earning power
aggregating more than 50% of the assets or earning power of the Company and its
Subsidiaries (taken as a whole) to any other Person or Persons (other than the
Company and/or any of its Subsidiaries in one or more transactions each of which
complies with Section 11(o) 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 that 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. The Company shall not
consummate any such consolidation, merger, sale or transfer unless prior thereto
the

                                      -21-

<PAGE>   23



Company and such other Person shall have executed and delivered to the Rights
Agent a supplemental agreement evidencing compliance with this Section 11(n).

                  (o) The Company covenants and agrees that, after the
Distribution Date, it will not, except as permitted by Section 23, Section 24 or
Section 27 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) Notwithstanding anything in this Agreement to the
contrary, prior to the Distribution Date, the Company may, in lieu of making any
adjustment to the Purchase Price, the number of shares of Common Stock eligible
for purchase on exercise of each Right or the number of Rights outstanding,
which adjustment would otherwise be required by Sections 11(a)(i), 11(b), 11(c),
11(h) or 11(i), make such other equitable adjustment or adjustments thereto as
the Board (whose determination shall be conclusive) deems appropriate in the
circumstances and not inconsistent with the objectives of the Board in adopting
this Agreement and such Sections.

         Section 12. CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF SHARES.
Whenever an adjustment is made as provided in Section 11 or Section 13 hereof,
the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief statement of the facts accounting for such adjustment,
(b) promptly file with the Rights Agent, and with each transfer agent for the
Common Stock, a copy of such certificate, and (c) mail a brief summary thereof
to each holder of a Rights Certificate (or, if prior to the Distribution Date,
to each holder of a certificate representing shares of Common Stock) in
accordance with Section 26 hereof. The Rights Agent shall be fully protected in
relying on any such certificate and on any adjustment therein contained and
shall not be deemed to have knowledge of any adjustment unless and until it
shall have received such certificate.

         Section 13. CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR
EARNING POWER.

                  (a) In the event that, at any time after a Person has become
an Acquiring Person, (x) the Company shall consolidate with, or merge with and
into, any other Person (other than a Subsidiary of the Company in a transaction
that 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 a Subsidiary of the Company in a transaction that 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

                                      -22-

<PAGE>   24



transactions, assets or earning power aggregating more than 50% of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to any
Person or Persons (other than the Company or 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, 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 shares of Common
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 Purchase Price in
effect immediately prior to the first occurrence of a Section 11(a)(ii) Event by
the number of shares of Common Stock for which a Right was exercisable
immediately prior to such first occurrence), and (2) 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 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, subject to clause (v) below, 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 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

                                      -23-

<PAGE>   25



         portion of the assets or earning power transferred pursuant to such
         transaction or transactions;

provided, however, that in any such case, (1) if the Common Stock of such Person
is not at such time and has not been continuously over the preceding twelve (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;
(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; and (3)
in case such Person is owned, directly or indirectly, by a joint venture formed
by two or more Persons that are not owned, directly or indirectly, by the same
Person, the rules set forth in (1) and (2) above shall apply to each of the
chains of ownership having an interest in such joint venture as if such party
were a "Subsidiary" of both or all of such joint ventures and the Principal
Parties in each such chain shall bear the obligations set forth in this Section
13 in the same ratio as their direct or indirect interests in such Person bear
to the total of such interests.

                  (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;

                           (ii) use its best efforts to qualify or register the
         Rights and the securities purchasable upon exercise of the Rights under
         the blue sky laws of such jurisdictions as may be necessary or
         appropriate; and

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


                                      -24-

<PAGE>   26



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

         Section 14. FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

                  (a) The Company shall not be required to issue fractions of
Rights, except prior to the Distribution Date as provided in Section 11(i) or
(p) hereof, or to distribute Rights Certificates that evidence fractional
Rights. In lieu of such fractional Rights, there shall be paid 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 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 with respect to securities listed or admitted to
trading on the principal national securities exchange on which the Rights are
listed or admitted to trading, or if the Rights are not listed or admitted to
trading on any national securities exchange, the last quoted price or, if not so
quoted, the average of the high bid and the low asked prices in the
over-the-counter market, as reported by Nasdaq or such other system then in use
or, if on any such date the Rights are not quoted by any such organization, the
average of the closing bid and asked prices as furnished by a professional
market maker making a market in the Rights selected by the Board. If on any such
date no such market maker is making a market in the Rights, the fair value of
the Rights on such date as determined in good faith by the Board shall be used.

                  (b) The Company shall not be required to issue fractions of
shares of Common Stock upon exercise of the Rights or to distribute certificates
that evidence fractional shares of Common Stock. In lieu of fractional shares of
Common Stock, the Company shall 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 a whole share
of Common Stock. For purposes of this Section 14(b), 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 Section 11(d) hereof) for the Trading Day
immediately prior to the date of such exercise.

                  (c) 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.

                                      -25-

<PAGE>   27



         Section 15. RIGHTS OF ACTION. All rights of action in respect of this
Agreement, except the rights of action expressly given to the Rights Agent in
Section 18 hereof, 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 duly completed and fully executed;

                  (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

                                      -26-

<PAGE>   28



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 prevent the issuance
of any such order, decree or ruling and to have any such order, decree or ruling
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 Common 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 reasonable
compensation 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 administration and
execution 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 or expense, incurred without gross
negligence, bad faith or willful misconduct on the part of the Rights Agent, for
anything done or omitted by the Rights Agent in connection with the acceptance
and administration of this Agreement, including the costs and expenses of
defending against any claim of liability in the premises.

                  (b) The Rights Agent shall be protected and shall incur no
liability for or in respect of any action taken, suffered or omitted by it in
connection with its administration of this Agreement in reliance upon any Rights
Certificate or certificate for Common Stock or for other securities of the
Company, instrument of assignment or transfer, power of attorney, endorsement,
affidavit, letter, notice, direction, consent, certificate, statement, or other
paper or document believed by it to be genuine and to be signed, executed and,
where necessary, verified or acknowledged, by the proper Person or Persons, or
otherwise upon the advice of counsel as set forth in Section 20 hereof.



                                      -27-

<PAGE>   29



         Section 19. MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.

                  (a) Any corporation into which the Rights Agent or any
successor Rights Agent may be merged or with which it may be consolidated, or
any corporation resulting from any merger or consolidation to which the Rights
Agent or any successor Rights Agent shall be a party, or any corporation
succeeding to the corporate trust or stock transfer 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; provided, however, that such
corporation 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 so countersigned; and in
case at that time any of the Rights Certificates shall not have been
countersigned, the Rights Agent may countersign such Rights Certificates either
in its prior name or in its changed name; and in all such cases such Rights
Certificates shall have the full force provided in the Rights Certificates and
in this Agreement.

         Section 20. DUTIES OF RIGHTS AGENT. The Rights Agent undertakes the
duties and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Rights Certificates,
by their acceptance thereof, shall be bound:

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

                  (b) Whenever in the performance of its duties under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including, without limitation, the identity of any Acquiring Person and
the determination of "current market price") be proved or established by the
Company prior to taking or suffering any action hereunder, such fact or matter
(unless other evidence in respect

                                      -28-

<PAGE>   30



thereof be herein specifically prescribed) may be deemed to be conclusively
proved and established by a certificate signed by the Chief Executive Officer,
the President, any Executive Vice President, any Senior Vice 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
or suffered in good faith by it under the provisions of this Agreement in
reliance upon such certificate.

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

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

                  (e) The Rights Agent shall not be under any responsibility 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 adjustment required under the provisions of
Section 11, Section 13 or Section 24 hereof or responsible for the manner,
method or amount of any such adjustment or the ascertaining of the existence of
facts that would require any such adjustment (except with respect to the
exercise of Rights evidenced by Rights Certificates after receipt of a
certificate describing any such adjustment, delivered pursuant to Section 12);
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
other securities to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any shares of Common Stock or other securities
will, when so issued, be validly authorized and issued, fully paid and
nonassessable.

                  (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 Chief Executive Officer, the President, any Executive Vice President, any
Senior Vice President, any Vice President, the Secretary, any Assistant
Secretary, the Treasurer or any Assistant

                                      -29-

<PAGE>   31



Treasurer of the Company, and to apply to such officers for advice or
instructions in connection with its duties, and it shall not be liable for any
action taken or suffered to be taken by it in good faith in accordance with
instructions of any such officer. 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 with respect to its duties or obligations under this Rights Agreement and
the date on and/or after which such action shall be taken or omitted and the
Rights Agent shall not be liable for any action taken or omitted in accordance
with a proposal included in any such application on or after the date specified
therein (which date shall not be less than five Business Days after the date any
such officer actually receives such application, unless any such officer shall
have consented in writing to an earlier date) unless, prior to taking or
omitting any such action, the Rights Agent has received written instructions in
response to such application specifying the action to be taken or omitted.

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

                  (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; provided, however, reasonable care was
exercised 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 there shall be reasonable grounds for believing that repayment of such
funds or adequate indemnification against such risk or liability is not
reasonably assured to it.

                  (k) If, with respect to any Rights Certificate surrendered to
the Rights Agent for exercise or transfer, the certificate attached to the form
of assignment or form of election to purchase, as the case may be, has not been
completed, the Company and the Rights Agent will deem the beneficial owner of
the rights evidenced by such Rights Certificate to be an Acquiring Person or an
Affiliate or Associate thereof and such assignment or election to purchase will
not be honored.


                                      -30-

<PAGE>   32



         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, by registered or certified mail, and to the
holders of the Rights Certificates by first-class mail. 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, by registered or certified
mail, and to the holders of the Rights Certificates by first-class mail. If the
Rights Agent shall resign or be removed or shall otherwise become incapable of
acting, the Company shall appoint a successor to the Rights Agent. If the
Company shall fail to make such appointment within a period of thirty (30) 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), then 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) a corporation organized and
doing business under the laws of the United States (or of any state of the
United States) in good standing, which is authorized under such laws to exercise
corporate trust or stock transfer powers and is subject to supervision or
examination by federal or state authority 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 corporation 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 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 form
as may be approved by its Board to reflect any adjustment or change in the
Purchase Price and the number or kind or class of shares or other securities or
property purchasable under the Rights Certificates made in accordance with the
provisions of this Agreement. In addition, in connection with the issuance or
sale of shares of Common Stock following the Distribution Date and prior to the
redemption or expiration of the Rights, the Company

                                      -31-

<PAGE>   33



(a) shall, with respect to shares of Common Stock so issued or sold pursuant to
the exercise of stock options or under any employee plan or arrangement, or upon
the exercise, conversion or exchange of securities issued by the Company prior
to the Distribution Date, and (b) may, in any other case, if deemed necessary or
appropriate by the Board, issue Rights Certificates representing the appropriate
number of Rights in connection with such issuance or sale; provided, however,
that (i) no such Rights Certificate shall be issued if, and to the extent that,
the Company shall be advised by counsel that such issuance would create a
significant risk of material adverse tax consequences to the Company or the
Person to whom such Rights Certificate would be issued, and (ii) no such Rights
Certificate shall be issued if, and to the extent that, appropriate adjustment
shall otherwise have been made in lieu of the issuance thereof.

         Section 23. REDEMPTION AND TERMINATION.

                  (a) The Board may, at its option, at any time prior to the
earlier of (i) the close of business on the tenth Business Day (or such later
date as may be determined by the Board pursuant to clause (i) of the first
sentence of Section 3(a) with respect to the Distribution Date) following the
Stock Acquisition Date (or, if the Stock Acquisition Date shall have occurred
prior to the Record Date, the close of business on the tenth Business Day
following the Record Date) or (ii) the Final Expiration Date, redeem all but not
less than all the then outstanding Rights at a redemption price of $.001 per
Right, as such amount may be appropriately adjusted to reflect any stock split,
stock dividend or similar transaction occurring after the date hereof (such
redemption price being hereinafter referred to as the "Redemption Price"). The
redemption of the Rights by the Board may be made effective at such time, on
such basis and with such conditions as the Board in its sole discretion may
establish. 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, or any combination of any of the foregoing, deemed
appropriate by the Board. Notwithstanding anything contained in this Agreement
to the contrary, the Rights shall not be exercisable after the first occurrence
of a Section 11(a)(ii) Event until such time as the Company's right of
redemption hereunder has expired.

                  (b) Immediately upon the action of the Board ordering the
redemption of the Rights, evidence of which shall have been filed with the
Rights Agent and without any further action and without any notice, the right to
exercise the Rights shall 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. Any notice which is mailed in the
manner herein

                                      -32-

<PAGE>   34



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.

                  (c) In the event of a redemption of the Rights in accordance
with this Agreement, the Company may, at its option, discharge all of its
obligations with respect to the Rights by (i) issuing a press release announcing
the manner of redemption of the Rights in accordance with this Agreement and
(ii) mailing payment of the Redemption Price to the registered holders of the
Rights at their last addresses as they appear on the registry books of the
Rights Agent or, prior to the Distribution Date, on the registry books of the
Transfer Agent of the Common Shares, and upon such action, all outstanding
Rights and Right Certificates shall be null and void without any further action
by the Company.

         Section 24. EXCHANGE.

                  (a) The Board may, at its option, at any time after a Section
11(a)(ii) Event, exchange all or part of the then outstanding and exercisable
Rights (which (i) shall not include Rights that have become void pursuant to the
provisions of Section 7(e) hereof, and (ii) shall include, without limitation,
any Rights issued after the Distribution Date) for shares of 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 Affiliates and Associates of such
Person, becomes the Beneficial Owner of 50% or more of the shares of 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, evidence
of which shall have been filed with the Rights Agent, and without any further
action and without any notice, the right to exercise such Rights shall terminate
and the only right thereafter of a holder of such Rights shall be to receive
that number of 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 of any such exchange; provided, however, that the failure to give,
or any defect in, such notice shall not affect the validity of such exchange.
The Company promptly shall mail a notice of any such exchange to all of the
holders of such Rights at their last addresses as they appear upon the registry
books of the Rights Agent. Any notice which is mailed in the manner herein
provided shall be deemed given, whether or not the holder receives the notice.
Each such notice of exchange shall state the method by which the exchange of
shares of Common Stock for

                                      -33-

<PAGE>   35



Rights will be effected and, in the event of any partial exchange, the number of
Rights which will be exchanged. Any partial exchange shall be effected pro rata
based on the number of Rights (other than Rights which have become void pursuant
to the provisions of Section 7(e) hereof) held by each holder of Rights.

                  (c) In the event that 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.

                  (d) 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 Right 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 (d), the current
market value of a whole share of Common Stock shall be the closing price per
share of Common Stock (as determined pursuant to the second sentence of Section
11(d) 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 Common Stock or to make any other distribution to the holders of
Common 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 Common
Stock rights or warrants to subscribe for or to purchase any additional shares
of Common Stock or shares of stock of any class or any other securities, rights
or options, or (iii) to effect any reclassification of its Common Stock (other
than a reclassification involving only the subdivision of outstanding shares of
Common 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 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 each holder of a
Rights Certificate, to the extent feasible and 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

                                      -34-

<PAGE>   36



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 Common 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 Common 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 Common Stock, whichever shall be the earlier.

                  (b) In case a Section 11(a)(ii) Event shall occur, then, in
any such case, (i) the Company shall as soon as practicable thereafter give to
each holder of a Rights Certificate, to the extent feasible and in accordance
with Section 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
Common Stock shall be deemed thereafter to refer also 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 with
the Rights Agent) as follows:

                       Security Dynamics Technologies, Inc.
                       36 Crosby Drive
                       Bedford, MA 01730
                       Attention: Chief Executive Officer

                       with a copy to:

                       Hale and Dorr LLP
                       60 State Street
                       Boston, MA 02109
                       Attention: Hal J. Leibowitz

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 with the Company) as follows:

                       State Street Bank and Trust Company
                       c/o EquiServe Limited Partnership
                       150 Royall Street
                       Canton, MA 02021
                       Attention: Client Administration

                                      -35-

<PAGE>   37



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 prepaid, addressed to such holder at the address of
such holder as shown on the registry books of the Company.

         Section 27. SUPPLEMENTS AND AMENDMENTS. Except as provided in the
penultimate sentence 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
penultimate sentence 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 in order (i) to cure any ambiguity or (ii) to
correct or supplement any provision contained herein which may be defective or
inconsistent with any other provisions herein, provided that no such supplement
or amendment shall adversely affect the interests of the holders of Rights as
such (other than an Acquiring Person or an Affiliate or Associate of an
Acquiring Person). Upon the delivery of a certificate from an appropriate
officer of the Company which states that the proposed supplement or amendment is
in compliance with the terms of this Section 27, the Rights Agent shall execute
such supplement or amendment. Notwithstanding anything contained in this
Agreement to the contrary, no supplement or amendment shall be made which
changes the Redemption Price. Prior to the Distribution Date, the interests of
the holders of Rights shall be deemed coincident with the interests of the
holders of Common Stock.

         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. ACTIONS BY THE BOARD OF DIRECTORS, ETC. 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 this Agreement).
All such actions, calculations, interpretations and determinations (including,
for purposes of clause (y) below, all omissions with respect to the foregoing)
which are done or made by the Board 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 to any liability to
the holders of the Rights.


                                      -36-

<PAGE>   38



         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, void or unenforceable
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 and shall not expire until the close of business on the tenth day
following the date of such determination by the Board.

         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 Commonwealth of Massachusetts and for all purposes shall be governed
by and construed in accordance with the laws of the Commonwealth of
Massachusetts applicable to contracts made and to be performed entirely within
the Commonwealth of Massachusetts.

         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.


                                    * * * * *

                                      -37-

<PAGE>   39



                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed and their respective corporate seals to be
hereunto affixed and attested, all as of the day and year first above written.


Attest:                                  SECURITY DYNAMICS TECHNOLOGIES, INC.



By: /s/ Margaret K. Seif                 By: /s/ Charles R. Stuckey, Jr.
   -------------------------------          -------------------------------
Name: Margaret K. Seif                   Name: Charles R. Stuckey, Jr.
Title: VP, General Counsel and           Title: CEO
       Secretary

Attest:                                  STATE STREET BANK AND TRUST COMPANY



By: /s/ Patricia A. Lee                  By: /s/ Stephen Cesso
   -------------------------------          -------------------------------
Name: Patricia A. Lee                    Name: Stephen Cesso
Title: Assistant Vice President          Title: Vice President and
       and Associate Counsel                    Associate Counsel




                                      -38-

<PAGE>   40



                                                                       EXHIBIT A

                          [Form of Rights Certificate]

Certificate No. R-                                                 ______ Rights

NOT EXERCISABLE AFTER JULY 20, 2009 OR EARLIER IF REDEEMED OR EXCHANGED BY THE
COMPANY. THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.001 PER RIGHT AND TO EXCHANGE
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)


                      SECURITY DYNAMICS TECHNOLOGIES, INC.
                               Rights Certificate

         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 July 20, 1999 (the "Rights Agreement"), between Security
Dynamics Technologies, Inc., a Delaware corporation (the "Company"), and State
Street Bank and Trust Company (the "Rights Agent"), to purchase from the Company
after the Distribution Date (as such term is defined in the Rights Agreement)
and at any time prior to 5:00 p.m. (Boston time) on July 20, 2009 at the office
of the Rights Agent designated for such purpose, or its successors as Rights
Agent, one fully paid, non-assessable share of Common Stock (the "Common Stock")
of the Company, $.01 par value per share, at a purchase price of $125.00 in cash
per share (the "Purchase Price"), upon presentation and surrender of this Rights
Certificate with the Form of Election to Purchase and related Certificate duly
executed. The number of Rights evidenced by this Rights Certificate (and the
number of shares of Common Stock which may be purchased upon exercise hereof)
set forth above, and the Purchase Price set forth above, are the number and
Purchase Price as of the close of business on July 20, 1999, based on the Common
Stock as constituted at such


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



<PAGE>   41



date. Capitalized terms used herein and not otherwise defined herein shall have
the meanings ascribed to such terms in the Rights Agreement.

         Upon the occurrence of a Section 11(a)(ii) Event, if the Rights
evidenced by this Rights 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 who becomes a transferee after the Acquiring
Person becomes an Acquiring Person, or (iii) under certain circumstances
specified in the Rights Agreement, a transferee of a person who, concurrently
with or 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 Common Stock or other securities which may be purchased
upon the exercise of the Rights evidenced by this Rights Certificate are subject
to modification and adjustment upon the happening of certain events, including
Section 11(a)(ii) Events.

         This Rights 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 Rights 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 offices of the
Company and are available upon written request to the Company.

         This Rights Certificate, with or without other Rights Certificates,
upon surrender at the office of the Rights Agent designated for such purpose,
with the Form of Election and Certificate set forth on the reverse side duly
executed, may be exchanged for another Rights Certificate or Rights Certificates
of like tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of shares of Common Stock as the Rights evidenced by the Rights
Certificate or Rights Certificates surrendered shall have entitled such holder
to purchase. If this Rights Certificate shall be exercised in part, the holder
shall be entitled to receive upon surrender hereof another Rights Certificate or
Rights Certificates for the number of whole Rights not exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate may be redeemed by the Company at its option at a redemption
price of $.001 per Right.


                                       -2-

<PAGE>   42



         Subject to the provisions of the Rights Agreement, the Company may, at
its option, at any time after a Section 11(a)(ii) Event, exchange all or part of
the Rights evidenced by this Certificate for shares of the Company's Common
Stock.

         No fractional shares of Common Stock will be issued upon the exercise
of any Right or Rights evidenced hereby, but in lieu thereof a cash payment will
be made, as provided in the Rights Agreement.

         No holder of this Rights Certificate, as such, shall be entitled to
vote or receive dividends or be deemed for any purpose the holder of shares of
Common 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 or withhold consent to 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:                                  SECURITY DYNAMICS TECHNOLOGIES, INC.


___________________________              By:___________________________
Secretary                                Name:
                                         Title:

COUNTERSIGNED:

STATE STREET BANK AND TRUST COMPANY


By:___________________________
  Authorized Signature


                                       -3-

<PAGE>   43



                  [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 that the Rights evidenced by this
Rights Certificate are not beneficially owned by, or being assigned to, an
Acquiring Person or an Affiliate or Associate thereof (as such terms are defined
pursuant to the Rights Agreement).

Dated: ______________


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



<PAGE>   44



                                     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.



                                       -2-

<PAGE>   45



                          FORM OF ELECTION TO PURCHASE

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


To:   State Street Bank and Trust Company

         The undersigned hereby irrevocably elects to exercise ___________
Rights represented by this Rights Certificate to purchase the shares of Common
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:




                                       -3-

<PAGE>   46




                                   Certificate

         The undersigned hereby certifies by checking the appropriate boxes
that:

         (1) the Rights evidenced by this Rights Certificate [   ] are [   ] are
not being exercised by or on behalf of a Person who is or was an Acquiring
Person or an Affiliate or Associate thereof (as such terms are defined pursuant
to the Rights Agreement);

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


Dated: _______________

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

Signature Guaranteed:



                                     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.








                                       -4-

<PAGE>   47



                                                                       EXHIBIT B

                              SUMMARY OF RIGHTS TO
                              PURCHASE COMMON STOCK

         On July 20, 1999, the Board of Directors of Security Dynamics
Technologies, Inc. (the "Company"), declared a dividend of one Right for each
outstanding share of the Company's common stock, $.01 par value per share
("Common Stock"), to stockholders of record at the close of business on July 30,
1999 (the "Record Date"). Each Right entitles the registered holder to purchase
from the Company one share of Common Stock, at a Purchase Price of $125.00 in
cash, subject to adjustment. The description and terms of the Rights are set
forth in a Rights Agreement dated as of July 20, 1999 (the "Rights Agreement")
between the Company and State Street Bank and Trust Company, 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. The Rights will separate from the Common Stock and a
Distribution Date will occur upon the earlier of (i) ten business days (or such
later date as may be determined by the Board of Directors of the Company)
following the later of (a) the first date of a public announcement that a person
or group of affiliated or associated persons (an "Acquiring Person") has
acquired, or obtained the right to acquire, beneficial ownership of 15% or more
of the outstanding shares of Common Stock or (b) the first date on which an
executive officer of the Company has actual knowledge that an Acquiring Person
has become such (the "Stock Acquisition Date"), or (ii) ten business days (or
such later date as may be determined by the Board of Directors of the Company)
following the commencement of a tender offer or exchange offer that would result
in a person or group beneficially owning 15% or more of such outstanding shares
of Common Stock. Until the Distribution Date (or earlier redemption or
expiration of the rights), (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, even without such notation, will also constitute the transfer of
the Rights associated with the Common Stock represented by such certificate.

         The Rights are not exercisable until the Distribution Date and will
expire upon the close of business on July 20, 2009 (the "Final Expiration Date")
unless earlier redeemed or exchanged as described below. As soon as practicable
after the Distribution Date, separate 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,
and except for shares of Common Stock issued upon exercise, conversion or
exchange of then outstanding options, convertible or exchangeable securities or
other contingent obligations to issue shares, only shares of Common Stock issued
prior to the Distribution Date will be issued with Rights.



<PAGE>   48



         In the event that any Person becomes an Acquiring Person, then promptly
following the first occurrence of such event, each holder of a Right (except as
provided below and in Section 7(e) of the Rights Agreement) shall thereafter
have the right to receive, upon exercise, that number of shares of Common Stock
of the Company (or, in certain circumstances, cash, property or other securities
of the Company) which equals the exercise price of the Right divided by 50% of
the current market price (as defined in the Rights Agreement) per share of
Common Stock at the date of the occurrence of such event. However, Rights are
not exercisable following such event until such time as the Rights are no longer
redeemable by the Company as described below. Notwithstanding any of the
foregoing, following the occurrence of such event, 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. The event
summarized in this paragraph is referred to as a "Section 11(a)(ii) Event."

         In the event that, at any time after any Person becomes an Acquiring
Person, (i) the Company is consolidated with, or merged with and into, another
entity and the Company is not the surviving entity of such consolidation or
merger or if the Company is the surviving entity, but shares of its outstanding
Common Stock are changed or exchanged for stock or securities (of any other
person) or cash or any other property, or (ii) 50% or more of the Company's
assets or earning power is sold or transferred, each holder of a Right (except
Rights which previously have been voided as set forth above) shall thereafter
have the right to receive, upon exercise, that number of shares of common stock
of the acquiring company which equals the exercise price of the Right divided by
50% of the current market price of such common stock at the date of the
occurrence of the event. The events summarized in this paragraph are referred to
as "Section 13 Events." A Section 11(a)(ii) Event and Section 13 Events are
collectively referred to as "Triggering Events."

         At any time after the occurrence of a Section 11(a)(ii) Event, subject
to certain conditions, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such Acquiring Person which have become
void), in whole or in part, at an exchange ratio of one share of Common Stock
per Right (subject to adjustment).

         The Purchase Price payable, and the number of shares of Common Stock or
other securities or property issuable, upon exercise of the Rights are subject
to adjustment from time to time to prevent dilution (i) in the event of a stock
dividend on, or a subdivision, combination or reclassification of, the Common
Stock, (ii) if holders of the Common Stock are granted certain rights or
warrants to subscribe for Common Stock or convertible securities at less than
the then-current market price of the Common Stock, or (iii) upon the
distribution to holders of the Common Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends paid out of earnings or
retained earnings) or of subscription rights or warrants (other than those
referred to above). The number of Rights associated with each share of Common
Stock is also subject to adjustment in the event of a stock split of the Common
Stock or a stock

                                       -2-

<PAGE>   49


dividend on the Common Stock payable in Common Stock or subdivisions,
consolidations or combinations of the Common Stock occurring, in any such case,
prior to the Distribution Date.

         With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price. No fractional shares of Common Stock will be issued and, in lieu thereof,
an adjustment in cash will be made based on the market price of the Common Stock
on the last trading date prior to the date of exercise.

         At any time prior to the earlier of (i) the tenth Business Day (or such
later date as may be determined by the Board of Directors of the Company) after
the Stock Acquisition Date, or (ii) the Final Expiration Date, the Company may
redeem the Rights in whole, but not in part, at a price of $.001 per Right (the
"Redemption Price"), payable in cash or stock. Immediately upon the action of
the Board of Directors ordering redemption of the Rights, the Rights will
terminate and the only right of the holders of Rights will be to receive the
Redemption Price. The Rights may also be redeemable following certain other
circumstances specified in the Rights Agreement.

         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 as set forth above.

         Subject to certain exceptions, any of the provisions of the Rights
Agreement may be amended by the Board of Directors of the Company prior to such
time as the Rights are no longer redeemable.

         A copy of the Rights Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to the Company's Current Report on Form 8-K
dated July 20, 1999. A copy of the Rights Agreement is available free of charge
from the Company. 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.





                                       -3-




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