SMITH MICRO SOFTWARE INC
S-8, EX-99.1, 2000-06-26
PREPACKAGED SOFTWARE
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                                                                    EXHIBIT 99.1



                           SMITH MICRO SOFTWARE, INC.
                      1995 STOCK OPTION/STOCK ISSUANCE PLAN
                (AS AMENDED AND RESTATED THROUGH MARCH 31, 2000)

                                  ARTICLE ONE

                                     GENERAL


        I. PURPOSE OF THE PLAN

           A. This 1995 Stock Option/Stock Issuance Plan (the "Plan") is
intended to promote the interests of Smith Micro Software, Inc., a Delaware
corporation (the "Corporation"), by providing eligible individuals with the
opportunity to acquire a proprietary interest, or otherwise increase their
proprietary interest, in the Corporation as an incentive for them to remain in
the service of the Corporation (or its parent or subsidiary corporations).

           B. The Discretionary Option Grant and Stock Issuance Programs of the
Plan became effective immediately upon the adoption of the Plan by the
Corporation's Board of Directors. Such date is hereby designated the "Plan
Effective Date." The Automatic Option Grant Program, however, became effective
on the date of execution of the underwriting agreement in connection with the
initial public offering of the Common Stock. Such date is hereby designated as
the "Automatic Option Grant Program Effective Date."

        II. DEFINITIONS

            A. For purposes of the Plan, the following definitions shall be in
effect:

            BOARD: the Corporation's Board of Directors.

            CHANGE IN CONTROL: a change in ownership or control of the
Corporation effected through either of the following transactions:

                (i) the acquisition directly or indirectly by any person or
        related group of persons (other than the Corporation or a person that
        directly or indirectly controls, is controlled by, or is under common
        control with, the Corporation) of beneficial ownership (within the
        meaning of Rule 13d-3 of the 1934 Act) of securities possessing more
        than fifty percent (50%) of the total combined voting power of the
        Corporation's outstanding securities pursuant to a tender or exchange
        offer made directly to the Corporation's stockholders which the Board
        does not recommend such stockholders to accept; or

                (ii) a change in the composition of the Board over a period of
        thirty-six (36) consecutive months or less such that a majority of the
        Board members ceases, by reason of one or more contested elections for
        Board membership, to be comprised of individuals who either (A) have
        been Board members continuously since the beginning of such period or
        (B) have been elected or nominated for election as Board members during
        such period by at least



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        a majority of the Board members described in clause (A) who were still
        in office at the time such election or nomination was approved by the
        Board.

            CODE: the Internal Revenue Code of 1986, as amended.

            COMMON STOCK: shares of the Corporation's common stock.

            CORPORATE TRANSACTION: any of the following stockholder-approved
transactions to which the Corporation is a party:

                (i) a merger or consolidation in which securities possessing
        more than fifty percent (50%) of the total combined voting power of the
        Corporation's outstanding securities are transferred to a person or
        persons different from the persons holding those securities immediately
        prior to such transaction, or

                (ii) the sale, transfer or other disposition of all or
        substantially all of the Corporation's assets in complete liquidation or
        dissolution of the Corporation.

            DISABILITY: the inability of an individual to engage in any
substantial gainful activity by reason of any medically determinable physical or
mental impairment which is expected to result in death or has lasted or can be
expected to last for a continuous period of not less than twelve (12) months.
However, for purposes of the Automatic Option Grant Program, Disability shall
mean the inability of the non-employee Board member to perform his or her usual
duties as a Board member by reason of any medically determinable physical or
mental impairment expected to result in death or to be of continuous duration of
twelve (12) months or more.

            EMPLOYEE: an individual who performs services while in the employ of
the Corporation or one or more parent or subsidiary corporations, subject to the
control and direction of the employer entity not only as to the work to be
performed but also as to the manner and method of performance.

            EXERCISE DATE: the date on which the Corporation shall have received
written notice of the option exercise.

            FAIR MARKET VALUE: the Fair Market Value per share of Common Stock
determined in accordance with the following provisions:

            - If the Common Stock is not at the time listed or admitted to
trading on any national securities exchange but is traded on the Nasdaq National
Market, then the Fair Market Value shall be the closing selling price per share
on the date in question, as such price is reported by the National Association
of Securities Dealers on the Nasdaq National Market. If there is no reported
closing selling price for the Common Stock on the date in question, then the
closing selling price on the last preceding date for which such quotation exists
shall be determinative of Fair Market Value.




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<PAGE>   3

            - If the Common Stock is at the time listed or admitted to trading
on any national securities exchange, then the Fair Market Value shall be the
closing selling price per share on the date in question on the exchange
determined by the Plan Administrator to be the primary market for the Common
Stock, as such price is officially quoted in the composite tape of transactions
on such exchange. If there is no reported sale of Common Stock on such exchange
on the date in question, then the Fair Market Value shall be the closing selling
price on the exchange on the last preceding date for which such quotation
exists.

            - If the Common Stock is on the date in question neither listed nor
admitted to trading on any national securities exchange nor traded on the Nasdaq
National Market, then the Fair Market Value of the Common Stock on such date
shall be determined by the Plan Administrator after taking into account such
factors as the Plan Administrator shall deem appropriate.

            INCENTIVE OPTION: a stock option which satisfies the requirements of
Code Section 422.

            INVOLUNTARY TERMINATION: the termination of the Service of any
individual which occurs by reason of:

                (i) such individual's involuntary dismissal or discharge by the
        Corporation for reasons other than Misconduct, or

                (ii) such individual's voluntary resignation following (A) a
        change in his or her position with the Corporation which materially
        reduces his or her level of responsibility, (B) a reduction in his or
        her level of compensation (including base salary, fringe benefits and
        any non-discretionary and objective-standard incentive payment or bonus
        award) by more than fifteen percent (15%) or (C) a relocation of such
        individual's place of employment by more than fifty (50) miles, provided
        and only if such change, reduction or relocation is effected by the
        Corporation without the individual's consent.

            MISCONDUCT: the commission of any act of fraud, embezzlement or
dishonesty by the Optionee or Participant, any unauthorized use or disclosure by
such person of confidential information or trade secrets of the Corporation (or
any parent or subsidiary), or any other intentional misconduct by such person
adversely affecting the business or affairs of the Corporation (or any parent or
subsidiary) in a material manner. The foregoing definition shall not be deemed
to be inclusive of all the acts or omissions which the Corporation (or any
parent or subsidiary) may consider as grounds for the dismissal or discharge of
any Optionee, Participant or other person in the Service of the Corporation (or
any parent or subsidiary).

            1934 ACT: the Securities Exchange Act of 1934, as amended from time
to time.

            NON-STATUTORY OPTION: a stock option not intended to meet the
requirements of Code Section 422.

            OPTIONEE: a person to whom an option is granted under the
Discretionary Option Grant or Automatic Option Grant Program.




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            PARTICIPANT: a person who is issued Common Stock under the Stock
Issuance Program.

            PLAN ADMINISTRATOR: the particular entity, whether the Primary
Committee, the Board or the Secondary Committee, which is authorized to
administer the Discretionary Option Grant and Stock Issuance Programs with
respect to one or more classes of eligible persons, to the extent such entity is
carrying out its administrative functions under those programs with respect to
the persons under its jurisdiction.

            PRIMARY COMMITTEE: the committee of two (2) or more non-employee
Board members appointed by the Board to administer the Discretionary Option
Grant and Stock Issuance Programs with respect to Section 16 Insiders.

            SECONDARY COMMITTEE: a committee of one (1) or more Board members
appointed by the Board to administer the Discretionary Option Grant and Stock
Issuance Programs with respect to eligible persons other than Section 16
Insiders.

            SECTION 12(g) REGISTRATION DATE: the date on which the initial
registration of the Common Stock under Section 12(g) of the 1934 Act became
effective.

            SECTION 16 INSIDER: an officer or director of the Corporation
subject to the short-swing profit liabilities of Section 16 of the 1934 Act.

            SERVICE: the performance of services on a periodic basis for the
Corporation (or any parent or subsidiary corporation) in the capacity of an
Employee, a non-employee member of the board of directors or an independent
consultant or advisor, except to the extent otherwise specifically provided in
the applicable stock option or stock issuance agreement.

            10% STOCKHOLDER: the owner of stock (as determined under Code
Section 424(d)) possessing more than ten percent (10%) of the total combined
voting power of all classes of stock of the Corporation or any parent or
subsidiary corporation.

            B. The following provisions shall be applicable in determining the
parent and subsidiary corporations of the Corporation:

                Any corporation (other than the Corporation) in an unbroken
        chain of corporations ending with the Corporation shall be considered to
        be a parent of the Corporation, provided each such corporation in the
        unbroken chain (other than the Corporation) owns, at the time of the
        determination, stock possessing fifty percent (50%) or more of the total
        combined voting power of all classes of stock in one of the other
        corporations in such chain.

                Each corporation (other than the Corporation) in an unbroken
        chain of corporations beginning with the Corporation shall be considered
        to be a subsidiary of the Corporation, provided each such corporation
        (other than the last corporation) in the unbroken chain owns, at the
        time of the determination, stock possessing fifty percent (50%) or more
        of the total combined voting power of all classes of stock in one of the
        other corporations in such chain.




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        III. STRUCTURE OF THE PLAN

             A. Stock Programs. The Plan shall be divided into three (3)
separate components: the Discretionary Option Grant Program specified in Article
Two, the Stock Issuance Program specified in Article Three and the Automatic
Option Grant Program specified in Article Four. Under the Discretionary Option
Grant Program, eligible individuals may, at the discretion of the Plan
Administrator, be granted options to purchase shares of Common Stock in
accordance with the provisions of Article Two. Under the Stock Issuance Program,
eligible individuals may be issued shares of Common Stock directly, either
through the immediate purchase of such shares at a price not less than one
hundred percent (100%) of the Fair Market Value of the shares at the time of
issuance or as a bonus for services rendered the Corporation or the
Corporation's attainment of financial objectives. Under the Automatic Option
Grant Program, each individual serving as a non-employee Board member on the
Automatic Option Grant Program Effective Date and each individual who first
joins the Board as a non-employee director at any time after such Effective Date
shall at periodic intervals receive option grants to purchase shares of Common
Stock in accordance with the provisions of Article Four, with the first such
grants to be made on the Automatic Option Grant Program Effective Date.

             B. General Provisions. Unless the context clearly indicates
otherwise, the provisions of Articles One and Five shall apply to the
Discretionary Option Grant Program, the Automatic Option Grant Program and the
Stock Issuance Program and shall accordingly govern the interests of all
individuals under the Plan.

        IV.  ADMINISTRATION OF THE PLAN

             A. The Board shall have the authority to administer the
Discretionary Option Grant and Stock Issuance Programs with respect to Section
16 Insiders but may delegate such authority in whole or in part to the Primary
Committee.

             B. Members of the Primary Committee shall serve for such period of
time as the Board may determine and may be removed by the Board at any time. The
Board may also at any time terminate the functions of any Secondary Committee
and reassume all powers and authority previously delegated to such committee.

             C. Each Plan Administrator shall, within the scope of its
administrative functions under the Plan, have full power and authority (subject
to the provisions of the Plan) to establish rules and regulations for the proper
administration of the Discretionary Option Grant and Stock Issuance Programs and
to make such determinations under, and issue such interpretations of, the
provisions of such programs and any outstanding options or stock issuances
thereunder as it may deem necessary or advisable. Decisions of the Plan
Administrator shall be final and binding on all parties who have an interest in
the Discretionary Option Grant and Stock Issuance Programs or any option or
share issuance thereunder.

             D. Service on the Primary Committee or the Secondary Committee
shall constitute service as a Board member, and members of each such committee
shall accordingly be entitled to full indemnification and reimbursement as Board
members for their service on such committee. No member of the Primary Committee
or the Secondary Committee shall be liable




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for any act or omission made in good faith with respect to the Plan or any
option grants or stock issuances under the Plan.

            E. Administration of the Automatic Option Grant Program shall be
self-executing in accordance with the express terms and conditions of Article
Four, and the Plan Administrator shall exercise no discretionary functions with
respect to option grants made pursuant to that program.

        V.  OPTION GRANTS AND STOCK ISSUANCES

            A. The persons eligible to participate in the Discretionary Option
Grant Program under Article Two and the Stock Issuance Program under Article
Three shall be limited to the following:

                (i) officers and other key employees of the Corporation (or its
        parent or subsidiary corporations) who render services which contribute
        to the management, growth and financial success of the Corporation (or
        its parent or subsidiary corporations);

                (ii) non-employee members of the Board; and

                (iii) those consultants or other independent advisors who
        provide valuable services to the Corporation (or its parent or
        subsidiary corporations).

            B. Only non-employee Board members shall be eligible to receive
automatic option grants pursuant to Article Four.

            C. The Plan Administrator shall have full authority to determine,
(i) with respect to the option grants made under the Discretionary Option Grant
Program, which eligible individuals are to receive option grants, the time or
times when such options are to be granted, the number of shares to be covered by
each such grant, the status of the granted option as either an Incentive Option
or a Non-Statutory Option, the time or times at which each granted option is to
become exercisable and the maximum term for which the option may remain
outstanding and (ii), with respect to stock issuances under the Stock Issuance
Program, the number of shares to be issued to each Participant, the vesting
schedule (if any) to be applicable to the issued shares and the consideration
for which such shares are to be issued.

        VI. STOCK SUBJECT TO THE PLAN

            A. Shares of Common Stock shall be available for issuance under the
Plan and shall be drawn from either the Corporation's authorized but unissued
shares of Common Stock or from reacquired shares of Common Stock, including
shares repurchased by the Corporation on the open market. The maximum number of
shares of Common Stock which may be issued over the term of the Plan shall not
exceed 2,750,000 shares, subject to adjustment from time to time in accordance
with the provisions of this Section VI.




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            B. In no event shall the aggregate number of shares of Common Stock
for which any one individual participating in the Plan may be granted stock
options and direct stock issuances exceed 400,000 shares per calendar year.

            C. Should one or more outstanding options under this Plan expire or
terminate for any reason prior to exercise in full (including any option
cancelled in accordance with the cancellation-regrant provisions of Section IV
of Article Two of the Plan), then the shares subject to the portion of each
option not so exercised shall be available for subsequent option grants under
the Plan. Unvested shares issued under the Plan and subsequently repurchased by
the Corporation pursuant to its repurchase rights under the Plan, shall be added
back to the number of shares of Common Stock available for subsequent issuance
under the Plan. In addition, should the exercise price of an outstanding option
under the Plan be paid with shares of Common Stock or should shares of Common
Stock otherwise issuable under the Plan be withheld by the Corporation in
satisfaction of the withholding taxes incurred in connection with the exercise
of an outstanding option under the Plan or the vesting of a direct share
issuance made under the Plan, then the number of shares of Common Stock
available for issuance under the Plan shall be reduced by the gross number of
shares for which the option is exercised or which vest under the share issuance,
and not by the net number of shares of Common Stock actually issued to the
holder of such option or share issuance.

            D. Should any change be made to the Common Stock issuable under the
Plan by reason of any stock split, stock dividend, recapitalization, combination
of shares, exchange of shares or other change affecting the outstanding Common
Stock as a class without the Corporation's receipt of consideration, then
appropriate adjustments shall be made to (i) the maximum number and/or class of
securities issuable under the Plan, (ii) the maximum number and/or class of
securities for which any one individual participating in the Plan may be granted
stock options and direct stock issuances in the aggregate per calendar year,
(iii) the number and/or class of securities for which automatic option grants
are to be subsequently made per eligible non-employee Board member under the
Automatic Option Grant Program and (iv) the number and/or class of securities
and price per share in effect under each option outstanding under either the
Discretionary Option Grant or Automatic Option Grant Program. Such adjustments
to the outstanding options are to be effected in a manner which shall preclude
the enlargement or dilution of rights and benefits under such options. The
adjustments determined by the Plan Administrator shall be final, binding and
conclusive.




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                                  ARTICLE TWO

                       DISCRETIONARY OPTION GRANT PROGRAM


        I. TERMS AND CONDITIONS OF OPTIONS

           Options granted pursuant to the Discretionary Option Grant Program
shall be authorized by action of the Plan Administrator and may, at the Plan
Administrator's discretion, be either Incentive Options or Non-Statutory
Options. Individuals who are not Employees of the Corporation or its parent or
subsidiary corporations may only be granted Non-Statutory Options. Each granted
option shall be evidenced by one or more instruments in the form approved by the
Plan Administrator; provided, however, that each such instrument shall comply
with the terms and conditions specified below. Each instrument evidencing an
Incentive Option shall, in addition, be subject to the applicable provisions of
Section II of this Article Two.

           A. Exercise Price.

                1. The exercise price per share shall be fixed by the Plan
Administrator in accordance with the following provisions:

                (i) The exercise price per share of Common Stock subject to an
        Incentive Option shall in no event be less than one hundred percent
        (100%) of the Fair Market Value of such Common Stock on the grant date.

                (ii) The exercise price per share of Common Stock subject to a
        Non-Statutory Option shall in no event be less than eighty-five percent
        (85%) of the Fair Market Value of such Common Stock on the grant date.

                2. The exercise price shall become immediately due upon exercise
of the option and shall, subject to the provisions of Section I of Article Five,
be payable in cash or check made payable to the Corporation. Should the
Corporation's outstanding Common Stock be registered under Section 12(g) of the
1934 Act at the time the option is exercised, then the exercise price may also
be paid as follows:

                (i) in shares of Common Stock held by the Optionee for the
        requisite period necessary to avoid a charge to the Corporation's
        earnings for financial reporting purposes and valued at Fair Market
        Value on the Exercise Date, or

                (ii) to the extent the option is exercised for vested shares,
        through a special sale and remittance procedure pursuant to which the
        Optionee shall concurrently provide irrevocable written instructions (a)
        to a Corporation-designated brokerage firm to effect the immediate sale
        of the purchased shares and remit to the Corporation, out of the sale
        proceeds available on the settlement date, sufficient funds to cover the
        aggregate exercise price payable for the




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        purchased shares plus all applicable Federal, state and local income and
        employment taxes required to be withheld by the Corporation by reason of
        such purchase and (b) to the Corporation to deliver the certificates for
        the purchased shares directly to such brokerage firm in order to
        complete the sale transaction.

                3. Except to the extent such sale and remittance procedure is
utilized, payment of the exercise price for the purchased shares must be made on
the Exercise Date.

           B. Term and Exercise of Options. Each option granted under this
Discretionary Option Grant Program shall be exercisable at such time or times
and during such period as is determined by the Plan Administrator and set forth
in the instrument evidencing the grant. No such option, however, shall have a
maximum term in excess of ten (10) years from the grant date.

           During the lifetime of the Optionee, Incentive Options shall be
exercisable only by the Optionee and shall not be assignable or transferable by
the Optionee other than by will or by the laws of descent and distribution
following the Optionee's death. However, a Non-Statutory Option may be assigned
in whole or in part during the Optionee's lifetime to one or more members of the
Optionee's immediate family or to a trust established exclusively for one or
more such family members. The assigned option may only be exercised by the
person or persons who acquire a proprietary interest in the option pursuant to
the assignment. The terms applicable to the assigned option (or portion thereof)
shall be the same as those in effect for the option immediately prior to such
assignment and shall be set forth in such documents issued to the assignee as
the Plan Administrator may deem appropriate.

           C. Termination of Service.

                1. Except to the extent otherwise provided pursuant to
subsection C.2 below, the following provisions shall govern the exercise period
applicable to any options held by the Optionee at the time of cessation of
Service or death:

                (i) Should the Optionee cease to remain in Service for any
        reason other than death or Disability, then the period during which each
        outstanding option held by such Optionee is to remain exercisable shall
        be limited to the three (3)-month period following the date of such
        cessation of Service.

                (ii) Should such Service terminate by reason of Disability, then
        the period during which each outstanding option held by the Optionee is
        to remain exercisable shall be limited to the twelve (12)-month period
        following the date of such cessation of Service.

                (iii) Should the Optionee die while holding one or more
        outstanding options, then the period during which each such option is to
        remain exercisable shall be limited to the twelve (12)-month period
        following the date of the Optionee's death. During such limited period,
        the option may be exercised by the personal representative of the
        Optionee's estate or by the person or persons to whom the option is
        transferred pursuant to the Optionee's will or in accordance with the
        laws of descent and distribution.




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                (iv) Should the Optionee's Service be terminated for Misconduct,
        then all outstanding options held by the Optionee shall terminate
        immediately and cease to be outstanding.

                (v) Under no circumstances, however, shall any such option be
        exercisable after the specified expiration date of the option term.

                (vi) During the applicable post-Service exercise period, the
        option may not be exercised in the aggregate for more than the number of
        vested shares for which the option is exercisable on the date of the
        Optionee's cessation of Service. Upon the expiration of the applicable
        exercise period or (if earlier) upon the expiration of the option term,
        the option shall terminate and cease to be exercisable for any vested
        shares for which the option has not been exercised. However, the option
        shall, immediately upon the Optionee's cessation of Service for any
        reason, terminate and cease to be outstanding with respect to any option
        shares for which the option is not at that time exercisable or in which
        the Optionee is not otherwise at that time vested.

                2. The Plan Administrator shall have complete discretion,
exercisable either at the time the option is granted or at any time while the
option remains outstanding,

                - to extend the period of time for which the option is to remain
exercisable following the Optionee's cessation of Service or death from the
limited period in effect under subsection C.1 of this Article Two to such
greater period of time as the Plan Administrator shall deem appropriate;
provided, that in no event shall such option be exercisable after the specified
expiration date of the option term; and/or

                - to permit one or more options held by the Optionee under this
Article Two to be exercised, during the limited post-Service exercise period
applicable under this paragraph C., not only with respect to the number of
vested shares of Common Stock for which each such option is exercisable at the
time of the Optionee's cessation of Service but also with respect to one or more
subsequent installments in which the Optionee would otherwise have vested had
such cessation of Service not occurred.

           D. Stockholder Rights. An Optionee shall have no stockholder rights
with respect to any shares covered by the option until such individual shall
have exercised the option, paid the exercise price and become the holder of
record of the purchased shares.

           E. Unvested Shares. The Plan Administrator shall have the discretion
to authorize the issuance of unvested shares of Common Stock under this
Discretionary Option Grant Program. Should the Optionee cease Service while
holding such unvested shares, the Corporation shall have the right to
repurchase, at the exercise price paid per share, all or (at the discretion of
the Corporation and with the consent of the Optionee) any of those unvested
shares. The terms and conditions upon which such repurchase right shall be
exercisable (including the period and procedure for exercise and the appropriate
vesting schedule for the purchased shares) shall be established by the Plan
Administrator and set forth in the agreement evidencing such repurchase right.




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<PAGE>   11

            F. First Refusal Rights. Until such time as the Corporation's
outstanding shares of Common Stock are first registered under Section 12(g) of
the 1934 Act, the Corporation shall have the right of first refusal with respect
to any proposed sale or other disposition by the Optionee (or any successor in
interest by reason of purchase, gift or other transfer) of any shares of Common
Stock issued under this Discretionary Option Grant Program. Such right of first
refusal shall be exercisable in accordance with the terms and conditions
established by the Plan Administrator and set forth in the agreement evidencing
such right.

         II. INCENTIVE OPTIONS

             Incentive Options may only be granted to individuals who are
Employees, and the terms and conditions specified below shall be applicable to
all Incentive Options granted under the Plan. Except as modified by the
provisions of this Section II, all the provisions of Articles One, Two and Five
shall be applicable to Incentive Options. Any Options specifically designated as
Non-Statutory shall not be subject to such terms and conditions.

             A. Dollar Limitation. The aggregate Fair Market Value (determined
as of the respective date or dates of grant) of the Common Stock for which one
or more options granted to any Employee under this Plan (or any other option
plan of the Corporation or its parent or subsidiary corporations) may for the
first time become exercisable as incentive stock options under the Federal tax
laws during any one calendar year shall not exceed the sum of One Hundred
Thousand Dollars ($100,000). To the extent the Employee holds two (2) or more
such options which become exercisable for the first time in the same calendar
year, the foregoing limitation on the exercisability of such options as
incentive stock options under the Federal tax laws shall be applied on the basis
of the order in which such options are granted. Should the number of shares of
Common Stock for which any Incentive Option first becomes exercisable in any
calendar year exceed the applicable One Hundred Thousand Dollar ($100,000)
limitation, then that option may nevertheless be exercised in that calendar year
for the excess number of shares as a Non-Statutory Option under the Federal tax
laws.

             B. 10% Stockholder. If any individual to whom an Incentive Option
is granted is a 10% Stockholder, then the exercise price per share shall not be
less than one hundred ten percent (110%) of the Fair Market Value per share of
Common Stock on the grant date, and the option term shall not exceed five (5)
years measured from the grant date.

        III. CORPORATE TRANSACTION/CHANGE IN CONTROL

             A. In the event of any Corporate Transaction, each outstanding
option shall automatically accelerate so that each such option shall,
immediately prior to the effective date of the Corporate Transaction, become
fully exercisable with respect to the total number of shares of Common Stock at
the time subject to such option and may be exercised for any or all of those
shares as fully-vested shares of Common Stock. However, an outstanding option
shall not so accelerate if and to the extent: (i) such option is, in connection
with the Corporate Transaction, either to be assumed by the successor
corporation (or parent thereof) or to be replaced with a comparable option to
purchase shares of the capital stock of the successor corporation (or parent
thereof), (ii) such option is to be replaced with a cash incentive program of
the successor corporation which preserves the spread existing on the unvested
option shares at the time of the




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Corporate Transaction and provides for subsequent payout in accordance with the
same vesting schedule applicable to such option or (iii) the acceleration of
such option is subject to other limitations imposed by the Plan Administrator at
the time of the option grant. The determination of option comparability under
clause (i) above shall be made by the Plan Administrator, and its determination
shall be final, binding and conclusive.

             B. All outstanding repurchase rights shall also terminate
automatically, and the shares of Common Stock subject to those terminated rights
shall immediately vest in full, in the event of any Corporate Transaction,
except to the extent: (i) those repurchase rights are to be assigned to the
successor corporation (or parent thereof) in connection with such Corporate
Transaction or (ii) such accelerated vesting is precluded by other limitations
imposed by the Plan Administrator at the time the repurchase right is issued.

             C. Immediately following the consummation of the Corporate
Transaction, all outstanding options shall terminate and cease to be
outstanding, except to the extent assumed by the successor corporation (or
parent thereof).

             D. Each option which is assumed in connection with a Corporate
Transaction shall be appropriately adjusted, immediately after such Corporate
Transaction, to apply to the number and class of securities which would have
been issuable to the Optionee in consummation of such Corporate Transaction had
the option been exercised immediately prior to such Corporate Transaction.
Appropriate adjustments to reflect such Corporate Transaction shall also be made
to (i) the exercise price payable per share under each outstanding option,
provided the aggregate exercise price payable for such securities shall remain
the same, (ii) the maximum number and/or class of securities available for
issuance under the remaining term of the Plan and (iii) the maximum number
and/or class of securities for which any one person may be granted stock options
and direct stock issuances under the Plan per calendar year.

             E. The Plan Administrator shall have full power and authority to
grant options under the Discretionary Option Grant Program which will
automatically accelerate in the event the Optionee's Service subsequently
terminates by reason of an Involuntary Termination within a designated period
(not to exceed eighteen (18) months) following the effective date of any
Corporate Transaction in which those options are assumed or replaced and do not
otherwise accelerate. Any options so accelerated shall remain exercisable for
fully-vested shares until the earlier of (i) the expiration of the option term
or (ii) the expiration of the one (1)-year period measured from the effective
date of the Involuntary Termination. In addition, the Plan Administrator may
provide that one or more of the Corporation's outstanding repurchase rights with
respect to shares held by the Optionee at the time of such Involuntary
Termination shall immediately terminate, and the shares subject to those
terminated repurchase rights shall accordingly vest in full.

             F. The Plan Administrator shall have full power and authority to
grant options under the Discretionary Option Grant Program which will
automatically accelerate in the event the Optionee's Service subsequently
terminates by reason of an Involuntary Termination within a designated period
(not to exceed eighteen (18) months) following the effective date of any Change
in Control. Each option so accelerated shall remain exercisable for fully-vested
shares until the earlier of (i) the expiration of the option term or (ii) the
expiration of the one (1)-year




                                       12
<PAGE>   13

period measured from the effective date of the Involuntary Termination. In
addition, the Plan Administrator may provide that one or more of the
Corporation's outstanding repurchase rights with respect to shares held by the
Optionee at the time of such Involuntary Termination shall immediately
terminate, and the shares subject to those terminated repurchase rights shall
accordingly vest in full.

             G. The portion of any Incentive Option accelerated in connection
with a Corporate Transaction or Change in Control shall remain exercisable as an
Incentive Option only to the extent the applicable One Hundred Thousand Dollar
limitation is not exceeded. To the extent such dollar limitation is exceeded,
the accelerated portion of such option shall be exercisable as a Non-Statutory
Option under the Federal tax laws.

             H. The outstanding options shall in no way affect the right of the
Corporation to adjust, reclassify, reorganize or otherwise change its capital or
business structure or to merge, consolidate, dissolve, liquidate or sell or
transfer all or any part of its business or assets.

         IV. CANCELLATION AND REGRANT OF OPTIONS

             The Plan Administrator shall have the authority to effect, at any
time and from time to time, with the consent of the affected Optionees, the
cancellation of any or all outstanding options under this Article Two and to
grant in substitution new options under the Plan covering the same or different
numbers of shares of Common Stock but with an exercise price per share not less
than (i) one hundred percent (100%) of the Fair Market Value per share of Common
Stock on the new grant date in the case of a grant of an Incentive Option, (ii)
one hundred ten percent (110%) of such Fair Market Value in the case of a grant
to a 10% Stockholder or (iii) eighty-five percent (85%) of such Fair Market
Value in the case of all other grants.




                                       13
<PAGE>   14

                                 ARTICLE THREE

                             STOCK ISSUANCE PROGRAM


        I. TERMS AND CONDITIONS OF STOCK ISSUANCES

           Shares of Common Stock may be issued under the Stock Issuance Program
directly without any intervening option grants. Each such stock issuance shall
be evidenced by a Stock Issuance Agreement which complies with the terms
specified below.

           A. The shares shall be issued for such valid consideration under the
Delaware General Corporation Law as the Plan Administrator may deem appropriate,
but the value of such consideration as determined by the Plan Administrator
shall not be less than one hundred percent (100%) of the Fair Market Value of
the issued shares of Common Stock on the issuance date.

           B. The Plan Administrator shall have full power and authority to
issue shares of Common Stock under the Stock Issuance Program as a bonus for
past services rendered to the Corporation (or any parent or subsidiary). All
such bonus shares shall be fully and immediately vested upon issuance.

           C. All other shares of Common Stock authorized for issuance under the
Stock Issuance Program by the Plan Administrator shall have a minimum vesting
schedule determined in accordance with the following requirements:

                (i) For any shares which are to vest solely by reason of Service
        to be performed by the Participant, the Plan Administrator shall impose
        a minimum Service period of at least two (2) years measured from the
        issue date of such shares.

                (ii) For any shares which are to vest upon the Participant's
        completion of a designated Service requirement and the Corporation's
        attainment of one or more prescribed performance milestones, the Plan
        Administrator shall impose a minimum Service period of at least one (1)
        year measured from the issue date of such shares.

           D. Any new, substituted or additional securities or other property
(including money paid other than as a regular cash dividend) which the
Participant may have the right to receive with respect to the Participant's
unvested shares of Common Stock by reason of any stock dividend, stock split,
recapitalization, combination of shares, exchange of shares or other change
affecting the outstanding Common Stock as a class without the Corporation's
receipt of consideration shall be issued subject to (i) the same vesting
requirements applicable to the Participant's unvested shares of Common Stock and
(ii) such escrow arrangements as the Plan Administrator shall deem appropriate.

           E. The Participant shall have full stockholder rights with respect to
any shares of Common Stock issued to the Participant under the Stock Issuance
Program, whether or not the




                                       14
<PAGE>   15

Participant's interest in those shares is vested. Accordingly, the Participant
shall have the right to vote such shares and to receive any regular cash
dividends paid on such shares.

            F. Should the Participant cease to remain in Service while holding
one or more unvested shares of Common Stock issued under the Stock Issuance
Program or should the performance objectives not be attained with respect to one
or more such unvested shares of Common Stock, then those shares shall be
immediately surrendered to the Corporation for cancellation, and the Participant
shall have no further stockholder rights with respect to those shares. To the
extent the surrendered shares were previously issued to the Participant for
consideration paid in cash or cash equivalent (including the Participant's
purchase-money indebtedness), the Corporation shall repay to the Participant the
cash consideration paid for the surrendered shares and shall cancel the unpaid
principal balance of any outstanding purchase-money note of the Participant
attributable to such surrendered shares.

            G. The Plan Administrator shall have full power and authority,
exercisable upon a Participant's termination of Service, to waive the surrender
and cancellation of any or all unvested shares of Common Stock (or other assets
attributable thereto) at the time held by that Participant, if the Plan
Administrator determines such waiver to be an appropriate severance benefit for
the Participant.

        II. CORPORATE TRANSACTION/CHANGE IN CONTROL

            A. All of the Corporation's outstanding repurchase/cancellation
rights under the Stock Issuance Program shall terminate automatically, and all
the shares of Common Stock subject to those terminated rights shall immediately
vest in full, in the event of any Corporate Transaction, except to the extent
(i) those rights are assigned to the successor corporation (or parent thereof)
in connection with such Corporate Transaction or (ii) such accelerated vesting
is precluded by other limitations imposed in the Stock Issuance Agreement.

            B. The Plan Administrator shall have the discretionary authority to
structure one or more of the Corporation's repurchase/cancellation rights under
the Stock Issuance Program in such manner that those rights shall automatically
terminate, and all the shares of Common Stock subject to those terminated rights
shall immediately vest in full, in the event the Participant's Service should
subsequently terminate by reason of an Involuntary Termination within eighteen
(18) months following the effective date of any Corporate Transaction in which
those rights are assigned to the successor corporation (or parent thereof).

            C. The Plan Administrator shall have the discretionary authority to
structure one or more of the Corporation's repurchase/cancellation rights under
the Stock Issuance Program in such manner that those rights shall automatically
terminate, and all the shares of Common Stock subject to those terminated rights
shall immediately vest in full, in the event the Participant's Service should
subsequently terminate by reason of an Involuntary Termination within eighteen
(18) months following the effective date of any Change in Control.




                                       15
<PAGE>   16

       III. SHARE ESCROW/LEGENDS

            Unvested shares may, in the Plan Administrator's discretion, be held
in escrow by the Corporation until the Participant's interest in such shares
vests or may be issued directly to the Participant with restrictive legends on
the certificates evidencing those unvested shares.





                                       16
<PAGE>   17

                                  ARTICLE FOUR

                         AUTOMATIC OPTION GRANT PROGRAM


         I. ELIGIBILITY

            The individuals eligible to receive automatic option grants pursuant
to the provisions of this Article Four program shall be limited to those
individuals who are serving as non-employee Board members on the Automatic
Option Grant Program Effective Date or who are first elected or appointed as
non-employee Board members on or after such Effective Date, whether through
appointment by the Board or election by the Corporation's stockholders.

        II. TERMS AND CONDITIONS OF AUTOMATIC OPTION GRANTS

            A. Grant Dates. Option grants shall be made under this Article Four
on the dates specified below:

                1. Initial Grant. Each individual serving as a non-employee
Board member on the Automatic Option Grant Program Effective Date and each
individual who is first elected or appointed as a non-employee Board member
after such Effective Date shall automatically be granted, on the Automatic
Option Grant Program Effective Date or on the date of such initial election or
appointment (as the case may be), a Non-Statutory Option to purchase 10,000
shares of Common Stock upon the terms and conditions of this Article Four. In no
event, however, shall a non-employee Board member be eligible to receive such an
initial option grant if such individual has at any time been in the prior employ
of the Corporation (or any parent or subsidiary corporation).

                2. Annual Grant. On the date of each Annual Stockholders
Meeting, beginning with the first Annual Meeting held after the Section 12(g)
Registration Date, each individual who will continue to serve as a non-employee
Board member shall automatically be granted, whether or not such individual is
standing for re-election as a Board member at that Annual Meeting, a
Non-Statutory Option to purchase an additional 2,500 shares of Common Stock upon
the terms and conditions of this Article Four, provided he or she has served as
a non-employee Board member for at least six (6) months prior to the date of
such Annual Meeting. Non-employee Board members who have previously been in the
employ of the Corporation (or any parent or subsidiary) shall be eligible to
receive such annual option grants over their continued period of Board service
through one or more Annual Stockholders Meetings.

                3. No Limitation. There shall be no limit on the number of
shares for which any one non-employee Board member may be granted stock options
under this Article Four over his or her period of Board service.

            B. Exercise Price. The exercise price per share of Common Stock
subject to each automatic option grant made under this Article Four shall be
equal to one hundred percent (100%) of the Fair Market Value per share of Common
Stock on the automatic grant date.




                                       17
<PAGE>   18

            C. Payment. The exercise price shall be payable in one of the
alternative forms specified below:

                (i) full payment in cash or check drawn to the Corporation's
        order;

                (ii) full payment in shares of Common Stock held for the
        requisite period necessary to avoid a charge to the Corporation's
        earnings for financial reporting purposes and valued at Fair Market
        Value on the Exercise Date (as such term is defined below);

                (iii) full payment in a combination of shares of Common Stock
        held for the requisite period necessary to avoid a charge to the
        Corporation's earnings for financial reporting purposes and valued at
        Fair Market Value on the Exercise Date and cash or check drawn to the
        Corporation's order; or

                (iv) to the extent the option is exercised for vested shares,
        full payment through a sale and remittance procedure pursuant to which
        the Optionee shall provide irrevocable written instructions to (I) a
        Corporation-designated brokerage firm to effect the immediate sale of
        the purchased shares and remit to the Corporation, out of the sale
        proceeds available on the settlement date, sufficient funds to cover the
        aggregate exercise price payable for the purchased shares and (II) the
        Corporation to deliver the certificates for the purchased shares
        directly to such brokerage firm in order to complete the sale
        transaction.

            Except to the extent the sale and remittance procedure specified
above is used for the exercise of the option for vested shares, payment of the
exercise price for the purchased shares must accompany the exercise notice.

            D. Option Term. Each automatic grant under this Article Four shall
have a maximum term of ten (10) years measured from the automatic grant date.

            E. Exercisability/Vesting. Each automatic grant shall be immediately
exercisable for any or all of the option shares. However, any shares purchased
under the option shall be subject to repurchase by the Corporation, at the
exercise price paid per share, upon the Optionee's cessation of Board service
prior to vesting in those shares in accordance with the applicable schedule
below:

                Initial Grant. Each initial 10,000-share automatic grant shall
vest, and the Corporation's repurchase right shall lapse, in a series of four
(4) equal and successive annual installments over the Optionee's period of
continued service as a Board member, with the first such installment to vest
upon Optionee's completion of one (1) year of Board service measured from the
automatic grant date.

                Annual Grant. Each additional 2,500-share automatic grant shall
vest, and the Corporation's repurchase right shall lapse, upon the Optionee's
completion of one (1) year of Board service measured from the automatic grant
date.




                                       18
<PAGE>   19

            F. Limited Transferability. During the lifetime of the Optionee,
each automatic option grant may be assigned in whole or in part to one or more
members of the Optionee's immediate family or to a trust established exclusively
for one or more such family members. The assigned portion may only be exercised
by the person or persons who acquire a proprietary interest in the option
pursuant to the assignment. The terms applicable to the assigned option (or
portion thereof) shall be the same as those in effect for the option immediately
prior to such assignment and shall be set forth in such documents issued to the
assignee as the Plan Administrator may deem appropriate.

            G. Effect of Termination of Board Membership. The following
provisions shall govern the exercise of any outstanding options held by the
Optionee under this Article Four at the time the Optionee ceases to serve as a
Board member:

                (i) The Optionee (or, in the event of Optionee's death, the
        personal representative of the Optionee's estate or the person or
        persons to whom the option is transferred pursuant to the Optionee's
        will or in accordance with the laws of descent and distribution) shall
        have a twelve (12)-month period following the date of such cessation of
        Board service in which to exercise each such option. However, each
        option shall, immediately upon the Optionee's cessation of Board
        service, terminate and cease to remain outstanding with respect to any
        option shares in which the Optionee is not vested on the date of such
        cessation of Board service.

                (ii) During the twelve (12)-month exercise period, the option
        may not be exercised in the aggregate for more than the number of vested
        shares for which the option is exercisable at the time of the Optionee's
        cessation of Board service. However, should the Optionee cease to serve
        as a Board member by reason of death or Permanent Disability, then all
        shares at the time subject to the option shall immediately vest so that
        such option may, during the twelve (12)-month exercise period following
        such cessation of Board service, be exercised for all or any portion of
        such shares as fully-vested shares.

                (iii) In no event shall the option remain exercisable after the
        expiration of the option term.

             H. Stockholder Rights. The holder of an automatic option grant
under this Article Three shall have none of the rights of a stockholder with
respect to any shares subject to such option until such individual shall have
exercised the option, paid the exercise price and become the holder of record of
the purchased shares.

             I. Remaining Terms. The remaining terms and conditions of each
automatic option grant shall be the same as the terms for option grants made
under the Discretionary Option Grant Program.

        III. CORPORATE TRANSACTION/CHANGE IN CONTROL

             A. In the event of any Corporate Transaction, the shares of Common
Stock at the time subject to each outstanding option under this Article Four but
not otherwise vested shall




                                       19
<PAGE>   20

automatically vest in full so that each such option shall, immediately prior to
the specified effective date for the Corporate Transaction, become fully
exercisable for all of the shares of Common Stock at the time subject to that
option and may be exercised for all or any portion of those shares as fully
vested shares of Common Stock. Immediately following the consummation of the
Corporate Transaction, all automatic option grants under this Article Four shall
terminate and cease to be outstanding, except to the extent assumed by the
successor corporation or parent thereof.

             B. Each outstanding option under this Article Four which is assumed
in connection with a Corporate Transaction outstanding shall be appropriately
adjusted, immediately after such Corporate Transaction, to apply and pertain to
the number and class of securities which would have been issuable to the
Optionee in the consummation of such Corporate Transaction, had the option been
exercised immediately prior to such Corporate Transaction. Appropriate
adjustments shall also be made to (i) the class and number of securities
available for issuance under the Plan following the consummation of such
Corporate Transaction, and (ii) the exercise price payable per share, provided
the aggregate exercise price payable for such securities shall remain the same.

             C. In connection with any Change in Control of the Corporation, the
shares of Common Stock at the time subject to each outstanding option under this
Article Four but not otherwise vested shall automatically vest in full so that
each such option shall, immediately prior to the specified effective date for
the Change in Control, become fully exercisable for all of the shares of Common
Stock at the time subject to that option and may be exercised for all or any
portion of those shares as fully vested shares of Common Stock. Each such option
shall remain so exercisable for all the option shares following the Change in
Control, until the expiration or sooner termination of the option term.

             D. The automatic option grants outstanding under this Article Four
shall in no way affect the right of the Corporation to adjust, reclassify,
reorganize or otherwise change its capital or business structure or to merge,
consolidate, dissolve, liquidate or sell or transfer all or any part of its
business or assets.




                                       20
<PAGE>   21

                                  ARTICLE FIVE

                                  MISCELLANEOUS


         I. LOANS OR INSTALLMENT PAYMENTS

            A. The Plan Administrator may, in its discretion, assist any
Optionee or Participant (including an Optionee or Participant who is an officer
of the Corporation) in the exercise of one or more options granted to such
Optionee under the Discretionary Option Grant Program or the purchase of one or
more shares issued to such Participant under the Stock Issuance Program,
including the satisfaction of any Federal, state and local income and employment
tax obligations arising therefrom, by (i) authorizing the extension of a loan
from the Corporation to such Optionee or Participant or (ii) permitting the
Optionee or Participant to pay the exercise price or purchase price for the
purchased Common Stock in installments over a period of years. The terms of any
loan or installment method of payment (including the interest rate and terms of
repayment) shall be upon such terms as the Plan Administrator specifies in the
applicable option or issuance agreement or otherwise deems appropriate at the
time such exercise price or purchase price becomes due and payable. Loans or
installment payments may be authorized with or without security or collateral.
In all events, the maximum credit available to the Optionee or Participant may
not exceed the option or purchase price of the acquired shares (less the par
value of such shares) plus any Federal, state and local income and employment
tax liability incurred by the Optionee or Participant in connection with the
acquisition of such shares.

            B. The Plan Administrator may, in its absolute discretion, determine
that one or more loans extended under this financial assistance program shall be
subject to forgiveness in whole or in part upon such terms and conditions as the
Plan Administrator may deem appropriate.

        II. AMENDMENT OF THE PLAN AND AWARDS

            A. The Board has complete and exclusive power and authority to amend
or modify the Plan (or any component thereof) in any or all respects whatsoever.
However, no such amendment or modification shall adversely affect rights and
obligations with respect to options at the time outstanding under the Plan, nor
adversely affect the rights of any Participant with respect to Common Stock
issued under the Stock Issuance Program prior to such action, unless the
Optionee or Participant consents to such amendment. In addition, certain
amendments to the Plan may require stockholder approval pursuant to applicable
laws or regulations.

            B. (i) Options to purchase shares of Common Stock may be granted
under the Discretionary Option Grant Program and (ii) shares of Common Stock may
be issued under the Stock Issuance Program, which are in both instances in
excess of the number of shares then available for issuance under the Plan,
provided any excess shares actually issued under the Discretionary Option Grant
Program or the Stock Issuance Program are held in escrow until stockholder
approval is obtained for a sufficient increase in the number of shares available
for issuance under the Plan. If such stockholder approval is not obtained within
twelve (12) months after the date the first such excess option grants or excess
share issuances are made, then (I) any




                                       21
<PAGE>   22

unexercised excess options shall terminate and cease to be exercisable and (II)
the Corporation shall promptly refund the purchase price paid for any excess
shares actually issued under the Plan and held in escrow, together with interest
(at the applicable Short Term Federal Rate) for the period the shares were held
in escrow.

       III. TAX WITHHOLDING

            A. The Corporation's obligation to deliver shares of Common Stock
upon the exercise of stock options for such shares or the vesting of such shares
under the Plan shall be subject to the satisfaction of all applicable Federal,
state and local income tax and employment tax withholding requirements.

            B. The Plan Administrator may, in its discretion and in accordance
with the provisions of this Section III of this Article Five and such
supplemental rules as the Plan Administrator may from time to time adopt
(including the applicable safe-harbor provisions of Rule 16b-3 of the Securities
and Exchange Commission), provide any or all holders of Non-Statutory Options
(other than the automatic grants made pursuant to Article Four of the Plan) or
unvested shares under the Plan with the right to use shares of Common Stock in
satisfaction of all or part of the Federal, state and local income and
employment tax liabilities incurred by such holders in connection with the
exercise of their options or the vesting of their shares (the "Taxes"). Such
right may be provided to any such holder in either or both of the following
formats:

                - The holder of the Non-Statutory Option or unvested shares may
be provided with the election to have the Corporation withhold, from the shares
of Common Stock otherwise issuable upon the exercise of such Non-Statutory
Option or the vesting of such shares, a portion of those shares with an
aggregate Fair Market Value equal to the percentage of the applicable Taxes (not
to exceed one hundred percent (100%)) designated by the holder.

                - The Plan Administrator may, in its discretion, provide the
holder of the Non-Statutory Option or the unvested shares with the election to
deliver to the Corporation, at the time the Non-Statutory Option is exercised or
the shares vest, one or more shares of Common Stock previously acquired by such
individual (other than in connection with the option exercise or share vesting
triggering the Taxes) with an aggregate Fair Market Value equal to the
percentage of the Taxes incurred in connection with such option exercise or
share vesting (not to exceed one hundred percent (100%)) designated by the
holder.

        IV. EFFECTIVE DATE AND TERM OF PLAN

            A. The Plan was initially adopted by the Board on May 25, 1995, the
Plan Effective Date, and was subsequently approved by the Corporation's
stockholders on July 10, 1995.

            B. On March 27, 1998, the Board amended the Plan to (i) increase the
maximum number of shares of Common Stock authorized for issuance over the term
of the Plan from 1,000,000 to 1,750,000 shares and (ii) render all Board members
eligible to receive option grants under the Discretionary Option Grant Program
and direct stock issuances under the Stock Issuance Program in effect under the
Plan, (iii) allow unvested shares issued under the Plan and




                                       22
<PAGE>   23

subsequently repurchased by the Corporation at the option exercise or direct
issue price paid per share to be reissued under the Plan, (iv) remove certain
restrictions on the eligibility of non-employee Board members to serve as Plan
Administrator and (v) effect a series of additional changes to the provisions of
the Plan (including the stockholder approval requirements) in order to take
advantage of amendments effected in 1996 to Rule 16b-3 of the Securities and
Exchange Commission which exempts certain officer and director transactions
under the Plan from the short-swing liability provisions of the federal
securities laws. The stockholders approved such changes to the Plan at the May
14, 1998 Annual Meeting. The Automatic Option Grant Program of this Plan shall
in no event become effective, and no grants shall be made under such program,
until the Automatic Option Grant Program Effective Date.

            C. On March 31, 2000, the Board amended the Plan to increase the
maximum number of shares of Common Stock authorized for issuance over the term
of the Plan from 1,750,000 to 2,750,000 shares and to increase the limitation on
the number of shares of Common Stock which may be granted to any one individual
as stock options or direct stock issuances from 250,000 to 400,000 shares per
calendar year. The stockholders approved such changes to the Plan at the May 30,
2000 Annual Meeting.

            D. The Plan shall terminate upon the earlier of (i) May 24, 2005 or
(ii) the date on which all shares available for issuance under the Plan shall
have been issued pursuant to the exercise of the options granted under the Plan
or the issuance of shares (whether vested or unvested) under the Stock Issuance
Program. If the date of termination is determined under clause (i) above, then
all option grants and unvested share issuances outstanding on such date shall
thereafter continue to have force and effect in accordance with the provisions
of the instruments evidencing such grants or issuance.

         V. REGULATORY APPROVALS

            The implementation of the Plan, the granting of any option under the
Plan, the issuance of any shares under the Stock Issuance Program, and the
issuance of Common Stock upon the exercise of the option grants made hereunder
shall be subject to the Corporation's procurement of all approvals and permits
required by regulatory authorities having jurisdiction over the Plan, the
options granted under it, and the Common Stock issued pursuant to it.

        VI. USE OF PROCEEDS

            Any cash proceeds received by the Corporation from the sale of
shares pursuant to option grants or share issuances under the Plan shall be used
for general corporate purposes.

       VII. NO EMPLOYMENT/SERVICE RIGHTS

            Neither the action of the Corporation in establishing the Plan, nor
any action taken by the Plan Administrator hereunder, nor any provision of the
Plan shall be construed so as to grant any individual the right to remain in the
employ or service of the Corporation (or any parent or subsidiary corporation)
for any period of specific duration, and the Corporation (or any parent or
subsidiary corporation retaining the services of such individual) may terminate
such individual's employment or service at any time and for any reason, with or
without cause.




                                       23
<PAGE>   24

      VIII. MISCELLANEOUS PROVISIONS

            A. Except as otherwise expressly provided under the Plan, the right
to acquire Common Stock or other assets under the Plan may not be assigned,
encumbered or otherwise transferred by any Optionee or Participant.

            B. The provisions of the Plan relating to the exercise of options
and the vesting of shares shall be governed by the laws of the State of
California as such laws are applied to contracts entered into and performed in
such State.

            C. The provisions of the Plan shall inure to the benefit of, and be
binding upon, the Corporation and its successors or assigns, whether by
Corporate Transaction or otherwise, and the Participants and Optionees, the
legal representatives of their respective estates, their respective heirs or
legatees and their permitted assignees.




                                       24




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