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                                                                    EXHIBIT 10.3

                                  AMENDMENT TO
                           1996 EQUITY INCENTIVE PLAN
                                       OF
                        MILLENNIUM PHARMACEUTICALS, INC.


      The 1996 Equity Incentive Plan (the "Plan") be and hereby is amended as
follows:

      1.    The number 2,100,000 in the second line of Section 4 of the Plan
            shall be deleted and the number 4,100,000 shall be inserted in lieu
            thereof.


                           Approved by the Board of Directors on March 13, 1997
                           Approved by the Stockholders on May 21, 1997
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                        MILLENNIUM PHARMACEUTICALS, INC.

                           1996 EQUITY INCENTIVE PLAN


1.       Purpose.

         The purpose of this plan (the "Plan") is to secure for Millennium
Pharmaceuticals, Inc. (the "Company") and its shareholders the benefits arising
from capital stock ownership by employees, officers and directors of, and
consultants or advisors to, the Company and its parent and subsidiary
corporations who are expected to contribute to the Company's future growth and
success. Except where the context otherwise requires, the term "Company" shall
include the parent and all present and future subsidiaries of the Company as
defined in Sections 424(e) and 424(f) of the Internal Revenue Code of 1986, as
amended or replaced from time to time (the "Code").

2.       Type of Options and Awards; Administration.

         (a) Types of Options and Awards. Options granted pursuant to the Plan
shall be authorized by action of the Board of Directors of the Company (or a
Committee designated by the Board of Directors) and may be either incentive
stock options ("Incentive Stock Options") meeting the requirements of Section
422 of the Code or non-statutory options which are not intended to meet the
requirements of Section 422 of the Code. Awards granted pursuant to the Plan
shall be authorized by action of the Board of Directors of the Company (or a
Committee designated by the Board of Directors) and shall meet the requirements
of Section 13 of the Plan.

         (b) Administration. The Plan will be administered by the Board of
Directors of the Company, whose construction and interpretation of the terms and
provisions of the Plan shall be final and conclusive. The Board of Directors may
in its sole discretion (i) grant options to purchase shares of the Company's
Common Stock (as defined in Section 4 of the Plan), and issue shares upon
exercise of such options as provided in the Plan and (ii) make awards for the
purchase of shares of Common Stock pursuant to Section 13 of the Plan. The Board
shall have authority, subject to the express provisions of the Plan, to construe
the respective option agreements, awards and the Plan, to prescribe, amend and
rescind rules and regulations relating to the Plan, to determine the terms and
provisions of the respective option agreements and awards, which need not be
identical, and to make all other determinations in the judgment of the Board of
Directors necessary or desirable for the administration of the Plan. The Board
of Directors may correct any defect or supply any omission or reconcile any
inconsistency in the Plan or in any option agreement or award in the manner and
to the extent it shall deem expedient to carry the Plan into effect and it shall
be the sole and final judge of such expediency. No director or person acting
pursuant to authority delegated by the Board of Directors shall be liable for
any action or determination made in good faith.
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The Board of Directors may, to the full extent permitted by or consistent with
applicable laws or regulations (including, without limitation, applicable state
law and Rule 16b-3 promulgated under the Securities Exchange Act of 1934 (the
"Exchange Act"), or any successor rule ("Rule 16b-3")), delegate any or all of
its powers under the Plan to a committee (the "Committee") appointed by the
Board of Directors, and if the Committee is so appointed all references to the
Board of Directors in the Plan shall mean and relate to such Committee to the
extent authority is so delegated to such Committee.

         (c) Applicability of Rule 16b-3. Those provisions of the Plan which
make express reference to Rule 16b-3 shall apply only to such persons as are
required to file reports under Section 16(a) of the Exchange Act (a "Reporting
Person").

3.       Eligibility.

         (a) General. Options and awards may be granted or made to persons who
are, at the time of grant, employees, officers or directors (so long as such
officers and directors are also employees) of, or consultants or advisors to,
the Company; provided, that the class of individuals to whom Incentive Stock
Options may be granted shall be limited to all employees of the Company; and
provided further that non-employee directors of the Company are not eligible to
receive options or awards of restricted stock under the Plan. A person who has
been granted an option or award may, if he or she is otherwise eligible, be
granted additional options or awards if the Board of Directors shall so
determine. Subject to adjustment as provided in Section 16 below, the maximum
number of shares with respect to which options or restricted stock awards may be
granted to any person under the Plan shall not exceed 300,000 shares of Common
Stock during any calendar year during the term of the Plan. For the purpose of
calculating such maximum number, (a) an option or award shall continue to be
treated as outstanding notwithstanding its repricing, cancellation or expiration
and (b) the repricing of an outstanding option or award or the issuance of a new
option or award in substitution for a cancelled option or award shall be deemed
to constitute the grant of a new additional option or award, as the case may be,
separate from the original grant that is repriced or cancelled.

         (b) Grant of Options to Directors and Officers. The selection of a
director or an officer (as the terms "director" and "officer" are defined for
purposes of Rule 16b-3) as a participant, the timing of the option grant or
award, the exercise price of the option or the sale price of the award and the
number of shares for which an option or award may be granted to such director or
officer shall be determined either (i) by the Board of Directors, of which all
members shall be "disinterested persons" (as hereinafter defined), or (ii) by a
committee of two or more directors having full authority to act in the matter,
of which all members shall be "disinterested persons." For the purposes of the
Plan, a director shall be deemed to be "disinterested" only if such person
qualifies as a "disinterested person" within the meaning of Rule 16b-3, as such
term is interpreted from time to time.
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4.       Stock Subject to Plan.

         Subject to adjustment as provided in Section 16 below, the total number
of shares which may be issued and sold under the Plan is 2,100,000 shares of
Common Stock, $.001 par value per share ("Common Stock"). If an option granted
under the Plan shall expire or terminate for any reason without having been
exercised in full, the unpurchased shares subject to such option shall again be
available for subsequent option grants or awards under the Plan.

5.       Forms of Option Agreements.

         As a condition to the grant of an option under the Plan, each recipient
of an option shall execute an option agreement in such form not inconsistent
with the Plan as may be approved by the Board of Directors. Such option
agreements may differ among recipients.

6.       Purchase Price Upon Exercise of Options.

         (a) General. The purchase price per share of Common Stock deliverable
upon the exercise of an option shall be determined by the Board of Directors,
provided, however, that in the case of an Incentive Stock Option, the exercise
price shall not be less than 100% of the fair market value of such stock, as
determined by the Board of Directors, at the time of grant of such option, or
less than 110% of such fair market value in the case of options described in
Section 11(b).

         (b) Payment of Purchase Price. Options granted under the Plan may
provide for the payment of the exercise price by delivery of cash or a check to
the order of the Company in an amount equal to the exercise price of such
options, or, to the extent provided in the applicable option agreement, (i) by
delivery to the Company of shares of Common Stock of the Company already owned
by the optionee having a fair market value equal in amount to the exercise price
of the options being exercised, (ii) by any other means (including without
limitation by delivery of a promissory note of the optionee payable on such
terms as are specified by the Board of Directors) which the Board of Directors
determines are consistent with the purpose of the Plan and with applicable laws
and regulations (including, without limitation, the provisions of Rule 16b-3 and
Regulation T promulgated by the Federal Reserve Board) or (iii) by any
combination of such methods of payment. The fair market value of any shares of
the Company's Common Stock or other non-cash consideration which may be
delivered upon exercise of an option shall be determined in such manner as may
be prescribed by the Board of Directors.

7.       Option Period.

         Each option and all rights thereunder shall expire on such date as
shall be set forth in the applicable option agreement, except that such date, in
the case of an Incentive Stock Option, shall in no case be later than ten years
after the date on
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which the option is granted.

8.       Exercise of Options.

         Each option granted under the Plan shall be exercisable either in full
or in installments at such time or times and during such period as shall be set
forth in the agreement evidencing such option, subject to the provisions of the
Plan.

9.       Nontransferability of Options.

         Incentive Stock Options, and all options granted to Reporting Persons,
shall not be assignable or transferable by the person to whom it is granted,
either voluntarily or by operation of law, except by will or the laws of descent
and distribution, and, during the life of the optionee, shall be exercisable
only by the optionee; provided, however, that non-statutory options granted to
Reporting Persons may be transferred pursuant to a qualified domestic relations
order (as defined in Rule 16b-3).

10.      Effect of Termination of Employment or Other Relationship.

         The Board of Directors shall determine the period of time during which
an optionee may exercise an option following (i) the termination of the
optionee's employment or other relationship with the Company or (ii) the death
or disability of the optionee. Such periods shall be set forth in the agreement
evidencing such option.

11.      Incentive Stock Options.

         Options granted under the Plan which are intended to be Incentive Stock
Options shall be subject to the following additional terms and conditions:

         (a) Express Designation. All Incentive Stock Options granted under the
Plan shall, at the time of grant, be specifically designated as such in the
option agreement covering such Incentive Stock Options.

         (b) 10% Shareholder. If any employee to whom an Incentive Stock Option
is to be granted under the Plan is, at the time of the grant of such option, the
owner of stock possessing more than 10% of the total combined voting power of
all classes of stock of the Company (after taking into account the attribution
of stock ownership rules of Section 424(d) of the Code), then the following
special provisions shall be applicable to the Incentive Stock Option granted to
such individual:

                   (i) The purchase price per share of the Common Stock subject
         to such Incentive Stock Option shall not be less than 110% of the fair
         market value of one share of Common Stock at the time of grant; and
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                  (ii) The option exercise period shall not exceed five years
         from the date of grant.

         (c) Dollar Limitation. For so long as the Code shall so provide,
options granted to any employee under the Plan (and any other incentive stock
option plans of the Company) which are intended to constitute Incentive Stock
Options shall not constitute Incentive Stock Options to the extent that such
options, in the aggregate, become exercisable for the first time in any one
calendar year for shares of Common Stock with an aggregate fair market value
(determined as of the respective date or dates of grant) of more than $100,000.

         (d) Termination of Employment, Death or Disability. No Incentive Stock
Option may be exercised unless, at the time of such exercise, the optionee is,
and has been continuously since the date of grant of his or her option, employed
by the Company, except that:

                   (i) an Incentive Stock Option may be exercised within the
         period of three months after the date the optionee ceases to be an
         employee of the Company (or within such lesser period as may be
         specified in the applicable option agreement), provided, that the
         agreement with respect to such option may designate a longer exercise
         period and that the exercise after such three-month period shall be
         treated as the exercise of a non-statutory option under the Plan;

                  (ii) if the optionee dies while in the employ of the Company,
         or within three months after the optionee ceases to be such an
         employee, the Incentive Stock Option may be exercised, by the person to
         whom it is transferred by will or the laws of descent and distribution,
         within the period of one year after the date of death (or within such
         lesser period as may be specified in the applicable option agreement);
         and

                 (iii) if the optionee becomes disabled (within the meaning of
         Section 22(e)(3) of the Code or any successor provision thereto) while
         in the employ of the Company, the Incentive Stock Option may be
         exercised within the period of one year after the date the optionee
         ceases to be such an employee because of such disability (or within
         such lesser period as may be specified in the applicable option
         agreement).

For all purposes of the Plan and any option or award granted hereunder,
"employment" shall be defined in accordance with the provisions of Section
1.421-7(h) of the Income Tax Regulations (or any successor regulations).
Notwithstanding the foregoing provisions, no stock option may be exercised after
its expiration date.

12.      Additional Provisions.

         (a) Additional Option Provisions. The Board of Directors may, in its
sole
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discretion, include additional provisions in any option granted under the Plan,
including without limitation restrictions on transfer, repurchase rights,
commitments to pay cash bonuses, to make, arrange for or guaranty loans or to
transfer other property to optionees upon exercise of options, or such other
provisions as shall be determined by the Board of Directors; provided that such
additional provisions shall not be inconsistent with any other term or condition
of the Plan.

         (b) Acceleration, Extension, Etc. The Board of Directors may, in its
sole discretion, (i) accelerate the date or dates on which all or any particular
option or options granted under the Plan may be exercised or (ii) extend the
dates during which all or any particular option or options granted under the
Plan may be exercised; provided, however, that no such extension shall be
permitted if it would cause the Plan to fail to comply with Section 422 of the
Code or with Rule 16b-3.

13.      Awards.

         A restricted stock award (an "award") shall consist of the sale and
issuance by the Company of shares of Common Stock, and the purchase by the
recipient of such shares, subject to the terms, conditions and restrictions
described in the document evidencing the award and in this Section 13 and
elsewhere in the Plan.

         (a) Execution of Restricted Stock Award Agreement. As a condition to an
award under the Plan, each recipient of an award shall execute an agreement in
such form, which may differ among recipients, as shall be specified by the Board
of Directors at the time of such award.

         (b) Price. The Board of Directors shall determine the price at which
shares of Common Stock shall be sold to recipients of awards under the Plan. The
Board of Directors may, in its discretion, issue shares pursuant to awards
without the payment of any cash purchase price by the recipients or issue shares
pursuant to awards at a purchase price below the then fair market value of the
Common Stock. If a purchase price is required to be paid, it shall be paid in
cash or by check payable to the order of the Company at the time that the award
is accepted by the recipient, or by such other means as may be approved by the
Board of Directors.

         (c) Number of Shares. The award shall specify the number of shares of
Common Stock granted thereunder.

         (d) Restrictions on Transfer. In addition to such other terms,
conditions and restrictions upon awards as shall be imposed by the Board of
Directors, all shares issued pursuant to an award shall be subject to the
following restrictions:

                  (1) All shares of Common Stock subject to an award (including
         any shares issued pursuant to paragraph (e) of this Section) shall be
         subject to certain restrictions on disposition and obligations of
         resale to the Company as provided in subparagraph (2) below for the
         period specified in the document
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         evidencing the award, and shall not be sold, assigned, transferred,
         pledged, hypothecated or otherwise disposed of until such restrictions
         lapse. The period during which such restrictions are applicable is
         referred to as the "Restricted Period."

                  (2) In the event that a recipient's employment with the
         Company (or consultancy or advisory relationship, as the case may be)
         is terminated within the Restricted Period, whether such termination is
         voluntary or involuntary, with or without cause, or because of the
         death or disability of the recipient, the Company shall have the right
         and option for a period of three months following such termination to
         buy for cash that number of the shares of Common Stock purchased under
         the award as to which the restrictions on transfer and the forfeiture
         provisions contained in the award have not then lapsed, at a price
         equal to the price per share originally paid by the recipient. If such
         termination occurs within the last three months of the applicable
         restrictions, the restrictions and repurchase rights of the Company
         shall continue to apply until the expiration of the Company's three
         month option period.

                  (3) Notwithstanding subparagraphs (1) and (2) above, the Board
         of Directors may, in its discretion, either at the time that an award
         is made or at any time thereafter, waive its right to repurchase shares
         of Common Stock upon the occurrence of any of the events described in
         this paragraph (d) or remove or modify any part or all of the
         restrictions. In addition, the Board of Directors may, in its
         discretion, impose upon the recipient of an award at the time of such
         award such other restrictions on any shares of Common Stock issued
         pursuant to such award as the Board of Directors may deem advisable.

         (e) Additional Shares. Any shares received by a recipient of an award
as a stock dividend on, or as a result of stock splits, combinations, exchanges
of shares, reorganizations, mergers, consolidations or otherwise with respect
to, shares of Common Stock received pursuant to such award shall have the same
status and shall bear the same restrictions, all on a proportionate basis, as
the shares initially purchased pursuant to such award.

         (f) Transfers in Breach of Award. If any transfer of shares purchased
pursuant to an award is made or attempted contrary to the terms of the Plan and
of such award, the Board of Directors shall have the right to purchase for the
account of the Company those shares from the owner thereof or his or her
transferee at any time before or after the transfer at the price paid for such
shares by the person to whom they were awarded under the Plan. In addition to
any other legal or equitable remedies which it may have, the Company may enforce
its rights by specific performance to the extent permitted by law. The Company
may refuse for any purpose to recognize as a shareholder of the Company any
transferee who receives any shares contrary to the provisions of the Plan and
the applicable award or any recipient of an award who breaches his or her
obligation to resell shares as required
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by the provisions of the Plan and the applicable award, and the Company may
retain and/or recover all dividends on such shares which were paid or payable
subsequent to the date on which the prohibited transfer or breach was made or
attempted.

         (g) Additional Award Provisions. The Board of Directors may, in its
sole discretion, include additional provisions in any award granted under the
Plan, including without limitation commitments to pay cash bonuses, make,
arrange for or guarantee loans or transfer other property to recipients upon the
grant of awards, or such other provisions as shall be determined by the Board of
Directors.

14.      General Restrictions.

         (a) Investment Representations. The Company may require any person to
whom an option or award is granted, as a condition of exercising such option or
purchasing the shares subject to the award, to give written assurances in
substance and form satisfactory to the Company to the effect that such person is
acquiring the Common Stock subject to the option or award for his or her own
account for investment and not with any present intention of selling or
otherwise distributing the same, and to such other effects as the Company deems
necessary or appropriate in order to comply with federal and applicable state
securities laws.

         (b) Compliance With Securities Laws. Each option and award shall be
subject to the requirement that if, at any time, counsel to the Company shall
determine that the listing, registration or qualification of the shares subject
to such option or award upon any securities exchange or under any state or
federal law, or the consent or approval of any governmental or regulatory body,
or that the disclosure of non-public information or the satisfaction of any
other condition is necessary as a condition of, or in connection with, the
issuance or purchase of shares thereunder, such option or award may not be
exercised, in whole or in part, unless such listing, registration,
qualification, consent or approval, or satisfaction of such condition shall have
been effected or obtained on conditions acceptable to the Board of Directors.
Nothing herein shall be deemed to require the Company to apply for or to obtain
such listing, registration or qualification, or to satisfy such condition.

15.      Rights as a Shareholder.

         The holder of an option or recipient of an award shall have no rights
as a shareholder with respect to any shares covered by the option or award
(including, without limitation, any rights to receive dividends or non-cash
distributions with respect to such shares) until the date of issue of a stock
certificate to him or her for such shares. No adjustment shall be made for
dividends or other rights for which the record date is prior to the date such
stock certificate is issued.

16.      Adjustment Provisions for Recapitalizations and Related Transactions.

         (a) General. If, through or as a result of any merger, consolidation,
sale of
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all or substantially all of the assets of the Company, reorganization,
recapitalization, reclassification, stock dividend, stock split, reverse stock
split or other similar transaction, (i) the outstanding shares of Common Stock
are increased or decreased or are exchanged for a different number or kind of
shares or other securities of the Company, or (ii) additional shares or new or
different shares or other securities of the Company or other non-cash assets are
distributed with respect to such shares of Common Stock or other securities, an
appropriate and proportionate adjustment shall be made in (x) the maximum number
and kind of shares reserved for issuance under the Plan, (y) the number and kind
of shares or other securities subject to then outstanding options under the
Plan, and (z) the price for each share subject to any then outstanding options
under the Plan or repurchase rights of the Company, without changing the
aggregate purchase price as to which such options remain exercisable, provided
that no adjustment shall be made pursuant to this Section 16 if such adjustment
would cause the Plan to fail to comply with Section 422 of the Code or with Rule
16b-3.

         (b) Board Authority to Make Adjustments. Any adjustments under this
Section 16 will be made by the Board of Directors, whose determination as to
what adjustments, if any, will be made and the extent thereof will be final,
binding and conclusive. No fractional shares will be issued under the Plan on
account of any such adjustments.

17.      Merger, Consolidation, Asset Sale, Liquidation, etc.

         (a) General. In the event of a consolidation or merger in which
outstanding shares of Common Stock are exchanged for securities, cash or other
property of any other corporation or business entity or in the event of a
liquidation of the Company or sale of all or substantially all of the assets of
the Company, the Board of Directors of the Company, or the board of directors of
any corporation assuming the obligations of the Company, may, in its discretion,
take any one or more of the following actions, as to outstanding options and
awards: (i) provide that such options shall be assumed, or equivalent options
shall be substituted, by the acquiring or succeeding corporation (or an
affiliate thereof), provided that any such options substituted for Incentive
Stock Options shall meet the requirements of Section 424(a) of the Code, (ii)
upon written notice to the optionees, provide that all unexercised options will
terminate immediately prior to the consummation of such transaction unless
exercised by the optionee within a specified period following the date of such
notice, (iii) in the event of a merger under the terms of which holders of the
Common Stock of the Company will receive upon consummation thereof a cash
payment for each share surrendered in the merger (the "Merger Price"), make or
provide for a cash payment to the optionees equal to the difference between (A)
the Merger Price times the number of shares of Common Stock subject to such
outstanding options (to the extent then exercisable at prices not in excess of
the Merger Price) and (B) the aggregate exercise price of all such outstanding
options in exchange for the termination of such options, and (iv) provide that
all or any outstanding options shall become exercisable in full, any
restrictions on exercising outstanding options issued
<PAGE>   11
pursuant to the Plan prior to any given date shall terminate and any
restrictions on and rights of the Company to repurchase shares covered by
outstanding awards issued pursuant to the Plan shall terminate.

         (b) Substitute Options. The Company may grant options under the Plan in
substitution for options held by employees of another corporation who become
employees of the Company, or a subsidiary of the Company, as the result of a
merger or consolidation of the employing corporation with the Company or a
subsidiary of the Company, or as a result of the acquisition by the Company, or
one of its subsidiaries, of property or stock of the employing corporation. The
Company may direct that substitute options be granted on such terms and
conditions as the Board of Directors considers appropriate in the circumstances.

18.      No Special Employment Rights.

         Nothing contained in the Plan or in any option or award shall confer
upon any recipient of an award or optionee any right with respect to the
continuation of his or her employment by the Company or interfere in any way
with the right of the Company at any time to terminate such employment or to
increase or decrease the compensation of the optionee.

19.      Other Employee Benefits.

         Except as to plans which by their terms include such amounts as
compensation, neither the amount of any compensation deemed to be received by an
employee as a result of the exercise of an option or the sale of shares received
upon such exercise nor the value of an award granted to an employee will
constitute compensation with respect to which any other employee benefits of
such employee are determined, including, without limitation, benefits under any
bonus, pension, profit-sharing, life insurance or salary continuation plan,
except as otherwise specifically determined by the Board of Directors.

20.      Amendment of the Plan.

         (a) The Board of Directors may at any time, and from time to time,
modify or amend the Plan in any respect, except that if at any time the approval
of the shareholders of the Company is required as to such modification or
amendment under Section 422 of the Code or any successor provision with respect
to Incentive Stock Options or under Rule 16b-3 with respect to options held by
or awards made to Reporting Persons, the Board of Directors may not effect such
modification or amendment without such approval.

         (b) The termination or any modification or amendment of the Plan shall
not, without the consent of an optionee or recipient of an award, affect his or
her rights under an option or award previously granted to him or her. With the
consent of the optionee or recipient of the award affected, the Board of
Directors may amend
<PAGE>   12
outstanding option agreements or awards in a manner not inconsistent with the
Plan. The Board of Directors shall have the right to amend or modify (i) the
terms and provisions of the Plan and of any outstanding Incentive Stock Options
granted under the Plan to the extent necessary to qualify any or all such
options for such favorable federal income tax treatment (including deferral of
taxation upon exercise) as may be afforded incentive stock options under Section
422 of the Code and (ii) the terms and provisions of the Plan and of any
outstanding option or award to the extent necessary to ensure the qualification
of the Plan under Rule 16b-3 or any successor rule.

21.      Withholding.

         (a) The Company shall have the right to deduct from payments of any
kind otherwise due to the optionee or recipient of an award any federal, state
or local taxes of any kind required by law to be withheld with respect to any
shares issued upon exercise of options under the Plan or the purchase of shares
subject to the award. Subject to the prior approval of the Company, which may be
withheld by the Company in its sole discretion, the optionee or recipient of an
award may elect to satisfy such obligations, in whole or in part, (i) by causing
the Company to withhold shares of Common Stock otherwise issuable pursuant to
the exercise of an option or the purchase of shares subject to an award or (ii)
by delivering to the Company shares of Common Stock already owned by the
optionee or award recipient. The shares so delivered or withheld shall have a
fair market value equal to such withholding obligation. The fair market value of
the shares used to satisfy such withholding obligation shall be determined by
the Company as of the date that the amount of tax to be withheld is to be
determined. An optionee or award recipient who has made an election pursuant to
this Section 21(a) may only satisfy his or her withholding obligation with
shares of Common Stock which are not subject to any repurchase, forfeiture,
unfulfilled vesting or other similar requirements.

         (b) Notwithstanding the foregoing, in the case of a Reporting Person,
no election to use shares for the payment of withholding taxes shall be
effective unless made in compliance with any applicable requirements of Rule
16b-3.

         (c) If the recipient of an award under the Plan elects, in accordance
with Section 83(b) of the Code, to recognize ordinary income in the year of
acquisition of any shares awarded under the Plan, the Company will require at
the time of such election an additional payment for withholding tax purposes
based on the difference, if any, between the purchase price of such shares and
the fair market value of such shares as of the date immediately preceding the
date of the award.

22.      Cancellation and New Grant of Options, Etc.

         The Board of Directors shall have the authority to effect, at any time
and from time to time, with the consent of the affected optionees, (i) the
cancellation of any or all outstanding options under the Plan and the grant in
substitution therefor of new
<PAGE>   13
options under the Plan covering the same or different numbers of shares of
Common Stock and having an option exercise price per share which may be lower or
higher than the exercise price per share of the cancelled options or (ii) the
amendment of the terms of any and all outstanding options under the Plan to
provide an option exercise price per share which is higher or lower than the
then-current exercise price per share of such outstanding options.

23.      Effective Date and Duration of the Plan.

         (a) Effective Date. The Plan shall become effective when adopted by the
Board of Directors, but no Incentive Stock Option granted under the Plan shall
become exercisable unless and until the Plan shall have been approved by the
Company's shareholders. If such shareholder approval is not obtained within
twelve months after the date of the Board's adoption of the Plan, no options
previously granted under the Plan shall be deemed to be Incentive Stock Options
and no Incentive Stock Options shall be granted thereafter. Amendments to the
Plan not requiring shareholder approval shall become effective when adopted by
the Board of Directors; amendments requiring shareholder approval (as provided
in Section 20) shall become effective when adopted by the Board of Directors,
but no Incentive Stock Option issued after the date of such amendment shall
become exercisable (to the extent that such amendment to the Plan was required
to enable the Company to grant such Incentive Stock Option to a particular
optionee) unless and until such amendment shall have been approved by the
Company's shareholders. If such shareholder approval is not obtained within
twelve months of the Board's adoption of such amendment, any Incentive Stock
Options granted on or after the date of such amendment shall terminate to the
extent that such amendment to the Plan was required to enable the Company to
grant such option to a particular optionee. Subject to this limitation, options
and awards may be granted under the Plan at any time after the effective date
and before the date fixed for termination of the Plan.

         (b) Termination. Unless sooner terminated in accordance with Section
17, the Plan shall terminate, with respect to Incentive Stock Options, upon the
earlier of (i) the close of business on the day next preceding the tenth
anniversary of the date of its adoption by the Board of Directors, or (ii) the
date on which all shares available for issuance under the Plan shall have been
issued pursuant to the exercise or cancellation of options or the final vesting
of awards granted under the Plan. Unless sooner terminated in accordance with
Section 17, the Plan shall terminate with respect to options which are not
Incentive Stock Options and awards on the date specified in (ii) above. If the
date of termination is determined under (i) above, then options outstanding on
such date shall continue to have force and effect in accordance with the
provisions of the instruments evidencing such options.

24.      Provision for Foreign Participants.

         The Board of Directors may, without amending the Plan, modify awards or
options granted to participants who are foreign nationals or employed outside
the
<PAGE>   14
United States to recognize differences in laws, rules, regulations or customs of
such foreign jurisdictions with respect to tax, securities, currency, employee
benefit or other matters.


                                            Adopted by the Board of Directors on
                                            March 14, 1996