Document:

exv10w7

 

Exhibit 10.7

XenoPort, Inc.

2005 Equity Incentive Plan

Adopted: January 4, 2005

Approved By Stockholders:
January 19, 2005

Termination Date:
January 3, 2015

1. General.

     (a) Eligible Stock Award Recipients. The persons eligible to receive Stock Awards are
Employees, Directors and Consultants.

     (b) Available Stock Awards. The Plan provides for the grant of the following Stock Awards:
(i) Incentive Stock Options, (ii) Nonstatutory Stock Options, (iii) Stock Purchase Awards, (iv)
Stock Bonus Awards, (v) Stock Appreciation Rights, (vi) Stock Unit Awards, and (vii) Other Stock
Awards.

     (c) General Purpose. The Company, by means of the Plan, seeks to secure and retain the
services of the group of persons eligible to receive Stock Awards as set forth in Section 1(a), to
provide incentives for such persons to exert maximum efforts for the success of the Company and any
Affiliate and to provide a means by which such eligible recipients may be given an opportunity to
benefit from increases in value of the Common Stock through the granting of Stock Awards.

2. Definitions.

     As used in the Plan, the following definitions shall apply to the capitalized terms indicated
below:

     (a) “Affiliate” means (i) any corporation (other than the Company) in an unbroken chain of
corporations ending with the Company, provided each corporation in the unbroken chain (other than
the Company) 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, and (ii) any corporation (other than the Company) in an unbroken chain of corporations
beginning with the Company, provided each 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. The Board shall have the authority to determine (i) the time or times at which the
ownership tests are applied, and (ii) whether “Affiliate” includes entities other than corporations
within the foregoing definition.

     (b) “Board” means the Board of Directors of the Company.

     (c) “Capitalization Adjustment” has the meaning ascribed to that term in Section 11(a).

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     (d) “Cause” means, with respect to a Participant, the occurrence of any of the following: (i)
such Participant’s commission of any felony or any crime involving fraud, dishonesty or moral
turpitude under the laws of the United States or any state thereof; (ii) such Participant’s
attempted commission of, or participation in, a fraud or act of dishonesty against the Company;
(iii) such Participant’s intentional, material violation of any material contract or agreement
between the Participant and the Company or any statutory duty owed to the Company; (iv) such
Participant’s unauthorized use or disclosure of the Company’s confidential information or trade
secrets; (v) such Participant’s gross misconduct; (vi) such Participant’s repeated, unexcused
absences from the Participant’s regularly assigned workplace where such absences materially
interfere with the performance of the Participant’s duties; (vii) the Participant’s repeated or
habitual drug or alcohol use that materially interferes with the performance of the Participant’s
duties; (viii) the Participant’s gross insubordination; (ix) the Participant’s intentional,
material violation of any written Company policy; or (x) the Participant’s poor or inadequate
performance of the Participant’s duties. The determination that a termination is for Cause shall
be made by the Company in its sole discretion; provided, however, that no determination under
clauses (vi), (vii), (viii), (ix) or (x) shall be made unless the Participant has been given a
written warning from the Company that the continuation of the Participant’s conduct shall
constitute Cause and such conduct continues after a reasonable period of time to cure such conduct
following the receipt by the Participant of such written warning. Any determination by the Company
that the Continuous Service of a Participant was terminated by reason of dismissal without Cause
for the purposes of outstanding Stock Awards held by such Participant shall have no effect upon any
determination of the rights or obligations of the Company or such Participant for any other
purpose.

     (e) “Change in Control” means the occurrence, in a single transaction or in a series of
related transactions, of any one or more of the following events:

          (i) any Exchange Act Person becomes the Owner, directly or indirectly, of securities of the
Company representing more than fifty percent (50%) of the combined voting power of the Company’s
then outstanding securities other than by virtue of a merger, consolidation or similar transaction.
Notwithstanding the foregoing, a Change in Control shall not be deemed to occur (A) on account of
the acquisition of securities of the Company by an investor, any affiliate thereof or any other
Exchange Act Person from the Company in a transaction or series of related transactions the primary
purpose of which is to obtain financing for the Company through the issuance of equity securities
or (B) solely because the level of Ownership held by any Exchange Act Person (the “Subject Person”)
exceeds the designated percentage threshold of the outstanding voting securities as a result of a
repurchase or other acquisition of voting securities by the Company reducing the number of shares
outstanding, provided that if a Change in Control would occur (but for the operation of this
sentence) as a result of the acquisition of voting securities by the Company, and after such share
acquisition, the Subject Person becomes the Owner of any additional voting securities that,
assuming the repurchase or other acquisition had not occurred, increases the percentage of the then
outstanding voting securities Owned by the Subject Person over the designated percentage threshold,
then a Change in Control shall be deemed to occur;

          (ii) there is consummated a merger, consolidation or similar transaction involving (directly
or indirectly) the Company and, immediately after the consummation of such

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merger, consolidation or similar transaction, the stockholders of the Company immediately
prior thereto do not Own, directly or indirectly, either (A) outstanding voting securities
representing more than fifty percent (50%) of the combined outstanding voting power of the
surviving Entity in such merger, consolidation or similar transaction or (B) more than fifty
percent (50%) of the combined outstanding voting power of the parent of the surviving Entity in
such merger, consolidation or similar transaction, in each case in substantially the same
proportions as their Ownership of the outstanding voting securities of the Company immediately
prior to such transaction;

          (iii) the stockholders of the Company approve or the Board approves a plan of complete
dissolution or liquidation of the Company, or a complete dissolution or liquidation of the Company
shall otherwise occur;

          (iv) there is consummated a sale, lease, exclusive license or other disposition of all or
substantially all of the consolidated assets of the Company and its Subsidiaries, other than a
sale, lease, license or other disposition of all or substantially all of the consolidated assets of
the Company and its Subsidiaries to an Entity, more than fifty percent (50%) of the combined voting
power of the voting securities of which are Owned by stockholders of the Company in substantially
the same proportions as their Ownership of the outstanding voting securities of the Company
immediately prior to such sale, lease, license or other disposition; or

          (v) individuals who, on the date this Plan is adopted by the Board, are members of the Board
(the “Incumbent Board”) cease for any reason to constitute at least a majority of the members of
the Board; provided, however, that if the appointment or election (or nomination for election) of
any new Board member was approved or recommended by a majority vote of the members of the Incumbent
Board then still in office, such new member shall, for purposes of this Plan, be considered as a
member of the Incumbent Board.

     The term Change in Control shall not include a sale of assets, merger or other transaction
effected principally for the purpose of changing the domicile of the Company.

     Notwithstanding the foregoing or any other provision of this Plan, the definition of Change in
Control (or any analogous term) in an individual written agreement between the Company or any
Affiliate and the Participant shall supersede the foregoing definition with respect to Stock Awards
subject to such agreement; provided, however, that if no definition of Change in Control or any
analogous term is set forth in such an individual written agreement, the foregoing definition shall
apply.

     (f) “Code” means the Internal Revenue Code of 1986, as amended.

     (g) “Committee” means a committee of one (1) or more members of the Board to whom authority
has been delegated by the Board in accordance with Section 3(c).

     (h) “Common Stock” means the common stock of the Company.

     (i) “Company” means XenoPort, Inc., a Delaware corporation.

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     (j) “Consultant” means any person, including an advisor, who is (i) engaged by the Company or
an Affiliate to render consulting or advisory services and is compensated for such services, or
(ii) serving as a member of the Board of Directors of an Affiliate and is compensated for such
services. However, service solely as a Director, or payment of a fee for such service, shall not
cause a Director to be considered a “Consultant” for purposes of the Plan.

     (k) “Continuous Service” means that the Participant’s service with the Company or an
Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A
change in the capacity in which the Participant renders service to the Company or an Affiliate as
an Employee, Consultant or Director or a change in the entity for which the Participant renders
such service, provided that there is no interruption or termination of the Participant’s service
with the Company or an Affiliate, shall not terminate a Participant’s Continuous Service. For
example, a change in status from an employee of the Company to a consultant to an Affiliate or to a
Director shall not constitute an interruption of Continuous Service. To the extent permitted by
law, the Board or the chief executive officer of the Company, in that party’s sole discretion, may
determine whether Continuous Service shall be considered interrupted in the case of any leave of
absence approved by that party, including sick leave, military leave or any other personal leave.
Notwithstanding the foregoing, a leave of absence shall be treated as Continuous Service for
purposes of vesting in a Stock Award only to such extent as may be provided in the Company’s leave
of absence policy or in the written terms of the Participant’s leave of absence.

     (l) “Corporate Transaction” means the occurrence, in a single transaction or in a series of
related transactions, of any one or more of the following events:

          (i) a sale or other disposition of all or substantially all, as determined by the Board in its
sole discretion, of the consolidated assets of the Company and its Subsidiaries;

          (ii) a sale or other disposition of at least ninety percent (90%) of the outstanding
securities of the Company;

          (iii) the consummation of a merger, consolidation or similar transaction following which the
Company is not the surviving corporation; or

          (iv) the consummation of a merger, consolidation or similar transaction following which the
Company is the surviving corporation but the shares of Common Stock outstanding immediately
preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of
the merger, consolidation or similar transaction into other property, whether in the form of
securities, cash or otherwise.

     (m) “Covered Employee” means the chief executive officer and the four (4) other highest
compensated officers of the Company for whom total compensation is required to be reported to
stockholders under the Exchange Act, as determined for purposes of Section 162(m) of the Code.

     (n) “Director” means a member of the Board.

     (o) “Disability” means the permanent and total disability of a person within the meaning of
Section 22(e)(3) of the Code.

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     (p) “Employee” means any person employed by the Company or an Affiliate. However, service
solely as a Director, or payment of a fee for such services, shall not cause a Director to be
considered an “Employee” for purposes of the Plan.

     (q) “Entity” means a corporation, partnership or other entity.

     (r) “Exchange Act” means the Securities Exchange Act of 1934, as amended.

     (s) “Exchange Act Person” means any natural person, Entity or “group” (within the meaning of
Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” shall not include
(i) the Company or any Subsidiary of the Company, (ii) any employee benefit plan of the Company or
any Subsidiary of the Company or any trustee or other fiduciary holding securities under an
employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter
temporarily holding securities pursuant to an offering of such securities, (iv) an Entity Owned,
directly or indirectly, by the stockholders of the Company in substantially the same proportions as
their Ownership of stock of the Company; or (v) any natural person, Entity or “group” (within the
meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the effective date of the Plan
as set forth in Section 14, is the Owner, directly or indirectly, of securities of the Company
representing more than fifty percent (50%) of the combined voting power of the Company’s then
outstanding securities.

     (t) “Fair Market Value” means, as of any date, the value of the Common Stock determined as
follows:

          (i) If the Common Stock is listed on any established stock exchange or traded on the Nasdaq
National Market or the Nasdaq SmallCap Market, the Fair Market Value of a share of Common Stock
shall be the closing sales price for such stock (or the closing bid, if no sales were reported) as
quoted on such exchange or market (or the exchange or market with the greatest volume of trading in
the Common Stock) on the date in question, as reported in The Wall Street Journal or such other
source as the Board deems reliable. Unless otherwise provided by the Board, if there is no closing
sales price (or closing bid if no sales were reported) for the Common Stock on the date in
question, then the Fair Market Value shall be the closing selling price (or closing bid if no sales
were reported) on the last preceding date for which such quotation exists.

          (ii) In the absence of such markets for the Common Stock, the Fair Market Value shall be
determined by the Board in good faith.

     (u) “Incentive Stock Option” means an Option intended to qualify as an incentive stock option
within the meaning of Section 422 of the Code and the regulations promulgated thereunder.

     (v) “IPO Date” means the date of the underwriting agreement between the Company and the
underwriter(s) managing the initial public offering of the Common Stock, pursuant to which the
Common Stock is priced for the initial public offering.

     (w) “Non-Employee Director” means a Director who either (i) is not a current employee or
officer of the Company or an Affiliate, does not receive compensation, either

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directly or indirectly, from the Company or an Affiliate for services rendered as a consultant
or in any capacity other than as a Director (except for an amount as to which disclosure would not
be required under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act
(“Regulation S-K”)), does not possess an interest in any other transaction for which disclosure
would be required under Item 404(a) of Regulation S-K, and is not engaged in a business
relationship for which disclosure would be required pursuant to Item 404(b) of Regulation S-K; or
(ii) is otherwise considered a “non-employee director” for purposes of Rule 16b-3.

     (x) “Nonstatutory Stock Option” means an Option not intended to qualify as an Incentive Stock
Option.

     (y) “Officer” means a person who is an officer of the Company within the meaning of Section 16
of the Exchange Act and the rules and regulations promulgated thereunder.

     (z) “Option” means an Incentive Stock Option or a Nonstatutory Stock Option to purchase shares
of Common Stock granted pursuant to the Plan.

     (aa) “Option Agreement” means a written agreement between the Company and an Optionholder
evidencing the terms and conditions of an individual Option grant. Each Option Agreement shall be
subject to the terms and conditions of the Plan.

     (bb) “Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if
applicable, such other person who holds an outstanding Option.

     (cc) “Other Stock Award” means an award based in whole or in part by reference to the Common
Stock which is granted pursuant to the terms and conditions of Section 7(e).

     (dd) “Other Stock Award Agreement” means a written agreement between the Company and a holder
of an Other Stock Award evidencing the terms and conditions of an Other Stock Award grant. Each
Other Stock Award Agreement shall be subject to the terms and conditions of the Plan.

     (ee) “Outside Director” means a Director who either (i) is not a current employee of the
Company or an “affiliated corporation” (within the meaning of Treasury Regulations promulgated
under Section 162(m) of the Code), is not a former employee of the Company or an “affiliated
corporation” who receives compensation for prior services (other than benefits under a
tax-qualified retirement plan) during the taxable year, has not been an officer of the Company or
an “affiliated corporation,” and does not receive remuneration from the Company or an “affiliated
corporation,” either directly or indirectly, in any capacity other than as a Director, or (ii) is
otherwise considered an “outside director” for purposes of Section 162(m) of the Code.

     (ff) “Own,” “Owned,” “Owner,” “Ownership” A person or Entity shall be deemed to “Own,” to
have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or
Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or
otherwise, has or shares voting power, which includes the power to vote or to direct the voting,
with respect to such securities.

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     (gg) “Participant” means a person to whom a Stock Award is granted pursuant to the Plan or, if
applicable, such other person who holds an outstanding Stock Award.

     (hh) “Plan” means this XenoPort, Inc. 2005 Equity Incentive Plan.

     (ii) “Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act or any successor to Rule
16b-3, as in effect from time to time.

     (jj) “Securities Act” means the Securities Act of 1933, as amended.

     (kk) “Stock Appreciation Right” means a right to receive the appreciation on Common Stock that
is granted pursuant to the terms and conditions of Section 7(d).

     (ll) “Stock Appreciation Right Agreement” means a written agreement between the Company and a
holder of a Stock Appreciation Right evidencing the terms and conditions of a Stock Appreciation
Right grant. Each Stock Appreciation Right Agreement shall be subject to the terms and conditions
of the Plan.

     (mm) “Stock Award” means any right granted under the Plan, including an Option, a Stock
Purchase Award, Stock Bonus Award, a Stock Appreciation Right, a Stock Unit Award, or any Other
Stock Award.

     (nn) “Stock Award Agreement” means a written agreement between the Company and a Participant
evidencing the terms and conditions of a Stock Award grant. Each Stock Award Agreement shall be
subject to the terms and conditions of the Plan.

     (oo) “Stock Bonus Award” means an award of shares of Common Stock which is granted pursuant to
the terms and conditions of Section 7(b).

     (pp) “Stock Bonus Award Agreement” means a written agreement between the Company and a holder
of a Stock Bonus Award evidencing the terms and conditions of a Stock Bonus Award grant. Each
Stock Bonus Award Agreement shall be subject to the terms and conditions of the Plan.

     (qq) “Stock Purchase Award” means an award of shares of Common Stock which is granted pursuant
to the terms and conditions of Section 7(a).

     (rr) “Stock Purchase Award Agreement” means a written agreement between the Company and a
holder of a Stock Purchase Award evidencing the terms and conditions of a Stock Purchase Award
grant. Each Stock Purchase Award Agreement shall be subject to the terms and conditions of the
Plan.

     (ss) “Stock Unit Award” means a right to receive shares of Common Stock which is granted
pursuant to the terms and conditions of Section 7(c).

     (tt) “Stock Unit Award Agreement” means a written agreement between the Company and a holder
of a Stock Unit Award evidencing the terms and conditions of a Stock

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Unit Award grant. Each Stock Unit Award Agreement shall be subject to the terms and
conditions of the Plan.

     (uu) “Subsidiary” means, with respect to the Company, (i) any corporation of which more than
fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a
majority of the board of directors of such corporation (irrespective of whether, at the time, stock
of any other class or classes of such corporation shall have or might have voting power by reason
of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company,
and (ii) any partnership in which the Company has a direct or indirect interest (whether in the
form of voting or participation in profits or capital contribution) of more than fifty percent
(50%).

     (vv) “Ten Percent Stockholder” means a person who Owns (or is deemed to Own pursuant to
Section 424(d) of the Code) stock possessing more than ten percent (10%) of the total combined
voting power of all classes of stock of the Company or any Affiliate.

3. Administration.

     (a) Administration by Board. The Board shall administer the Plan unless and until the Board
delegates administration of the Plan to a Committee, as provided in Section 3(c).

     (b) Powers of Board. The Board shall have the power, subject to, and within the limitations
of, the express provisions of the Plan:

          (i) To determine from time to time (1) which of the persons eligible under the Plan shall be
granted Stock Awards; (2) when and how each Stock Award shall be granted; (3) what type or
combination of types of Stock Award shall be granted; (4) the provisions of each Stock Award
granted (which need not be identical), including the time or times when a person shall be permitted
to receive Common Stock pursuant to a Stock Award; and (5) the number of shares of Common Stock
with respect to which a Stock Award shall be granted to each such person.

          (ii) To construe and interpret the Plan and Stock Awards granted under it, and to establish,
amend and revoke rules and regulations for its administration. The Board, in the exercise of this
power, may correct any defect, omission or inconsistency in the Plan or in any Stock Award
Agreement, in a manner and to the extent it shall deem necessary or expedient to make the Plan
fully effective.

          (iii) To effect, at any time and from time to time, with the consent of any adversely affected
Optionholder, (1) the reduction of the exercise price of any outstanding Option under the Plan; (2)
the cancellation of any outstanding Option under the Plan and the grant in substitution therefor of
(a) a new Option under the Plan or another equity plan of the Company covering the same or a
different number of shares of Common Stock, (b) a Stock Purchase Award, (c) a Stock Bonus Award,
(d) a Stock Appreciation Right, (e) a Stock Unit Award, (f) an Other Stock Award, (g) cash, and/or
(h) other valuable consideration (as determined by the Board, in its sole discretion); or (3) any
other action that is treated as a repricing under generally accepted accounting principles.

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          (iv) To amend the Plan or a Stock Award as provided in Section 12.

          (v) To terminate or suspend the Plan as provided in Section 13.

          (vi) Generally, to exercise such powers and to perform such acts as the Board deems necessary
or expedient to promote the best interests of the Company and that are not in conflict with the
provisions of the Plan.

          (vii) To adopt such procedures and sub-plans as are necessary or appropriate to permit
participation in the Plan by Employees who are foreign nationals or employed outside the United
States.

     (c) Delegation to Committee.

          (i) General. The Board may delegate some or all of the administration of the Plan to a
Committee or Committees. If administration is delegated to a Committee, the Committee shall have,
in connection with the administration of the Plan, the powers theretofore possessed by the Board
that have been delegated to the Committee, including the power to delegate to a subcommittee any of
the administrative powers the Committee is authorized to exercise (and references in this Plan to
the Board shall thereafter be to the Committee or subcommittee), subject, however, to such
resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time
by the Board. The Board may retain the authority to concurrently administer the Plan with the
Committee and may, at any time, revest in the Board some or all of the powers previously delegated.

          (ii) Section 162(m) and Rule 16b-3 Compliance. In the sole discretion of the Board, the
Committee may consist solely of two or more Outside Directors, in accordance with Section 162(m) of
the Code, and/or solely of two or more Non-Employee Directors, in accordance with Rule 16b-3. In
addition, the Board or the Committee, in its sole discretion, may (1) delegate to a committee of
one or more members of the Board who need not be Outside Directors the authority to grant Stock
Awards to eligible persons who are either (a) not then Covered Employees and are not expected to be
Covered Employees at the time of recognition of income resulting from such Stock Award, or (b) not
persons with respect to whom the Company wishes to comply with Section 162(m) of the Code, and/or
(2) delegate to a committee of one or more members of the Board who need not be Non-Employee
Directors the authority to grant Stock Awards to eligible persons who are not then subject to
Section 16 of the Exchange Act.

     (d) Delegation to an Officer. The Board may delegate to one or more Officers of the Company
the authority to do one or both of the following (i) designate Officers and Employees of the
Company or any of its Subsidiaries to be recipients of Stock Awards and the terms thereof, and (ii)
determine the number of shares of Common Stock to be subject to such Stock Awards granted to such
Officers and Employees of the Company; provided, however, that the Board resolutions regarding such
delegation shall specify the total number of shares of Common Stock that may be subject to the
Stock Awards granted by such Officer and that such Officer may not grant a Stock Award to himself
or herself. Notwithstanding anything to the contrary in this Section 3(d), the Board may not
delegate to an Officer authority to determine the Fair Market Value of the Common Stock pursuant to
Section 2(t)(ii) above.

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     (e) Effect of Board’s Decision. All determinations, interpretations and constructions made by
the Board in good faith shall not be subject to review by any person and shall be final, binding
and conclusive on all persons.

4. Shares Subject to the Plan.

     (a) Share Reserve. Subject to the provisions of Section 11(a) relating to Capitalization
Adjustments, the number of shares of Common Stock that may be issued pursuant to Stock Awards shall
not exceed, in the aggregate, two million (2,000,000) shares of Common Stock; provided, however,
that such share reserve shall be increased from time to time by the number of shares of Common
Stock that (i) are issuable pursuant to stock awards outstanding under the Company’s 1999 Stock
Plan (the “1999 Plan”) as of the IPO Date, and (ii) but for the termination of the 1999 Plan as of
the IPO Date, would otherwise have reverted to the share reserve of the 1999 Plan. In addition,
the number of shares of Common Stock available for issuance under the Plan shall automatically
increase on January 1st of each year commencing in 2006 and ending on (and including) January 1,
2015, in an amount equal to the lesser of (i) two and a half percent (2.5%) of the total number of
shares of Common Stock outstanding on December 31st of the preceding calendar year, or (ii) two
million (2,000,000) shares of Common Stock. Notwithstanding the foregoing, the Board may act prior
to the first day of any calendar year, to provide that there shall be no increase in the share
reserve for such calendar year or that the number of shares by which the share reserve for such
calendar year is increased shall be a number of shares that is equal to or less than the number of
shares of Common Stock that would otherwise be determined pursuant to the preceding sentence. In
the event the Board does not act to establish the size of the share reserve increase for a calendar
year pursuant to the preceding sentence, the Board shall be deemed to have provided for no increase
in the share reserve for such year.

     (b) Reversion of Shares to the Share Reserve. If any Stock Award shall for any reason expire
or otherwise terminate, in whole or in part, without having been exercised in full, if any shares
of Common Stock issued to a Participant pursuant to a Stock Award are forfeited to or repurchased
by the Company, including, but not limited to, any repurchase or forfeiture caused by the failure
to meet a contingency or condition required for the vesting of such shares, or if any shares of
Common Stock are cancelled in accordance with the cancellation and regrant provisions of Section
3(b)(iii), then the shares of Common Stock not issued under such Stock Award, or forfeited to or
repurchased by the Company, shall revert to and again become available for issuance under the Plan.
If any shares subject to a Stock Award are not delivered to a Participant because such shares are
withheld for the payment of taxes or the Stock Award is exercised through a reduction of shares
subject to the Stock Award (i.e., “net exercised”), the number of shares that are not delivered to
the Participant shall remain available for issuance under the Plan. If the exercise price of any
Stock Award is satisfied by tendering shares of Common Stock held by the Participant (either by
actual delivery or attestation), then the number of shares so tendered shall remain available for
issuance under the Plan. Notwithstanding anything to the contrary in this Section 4(b), subject to
the provisions of Section 11(a) relating to Capitalization Adjustments the aggregate maximum number
of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options
shall be two million (2,000,000) shares of Common Stock plus the amount of any increase in the
number of shares that may be available for issuance pursuant to Stock Awards pursuant to Section
4(a).

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     (c) Source of Shares. The shares of Common Stock subject to the Plan may be unissued shares
or reacquired shares, bought on the market or otherwise.

5. Eligibility.

     (a) Eligibility for Specific Stock Awards. Incentive Stock Options may be granted only to
Employees. Stock Awards other than Incentive Stock Options may be granted to Employees, Directors
and Consultants.

     (b) Ten Percent Stockholders. A Ten Percent Stockholder shall not be granted an Incentive
Stock Option unless the exercise price of such Option is at least one hundred ten percent (110%) of
the Fair Market Value of the Common Stock on the date of grant and the Option is not exercisable
after the expiration of five (5) years from the date on which it was granted.

     (c) Limitation on Annual Grants. Subject to the provisions of Section 11(a) relating to
Capitalization Adjustments, at such time as the Company may be subject to the applicable provisions
of Section 162(m) of the Code, no Employee shall be eligible to be granted Stock Awards whose value
is determined by reference to an increase over an exercise or strike price of at least one hundred
percent (100%) of the Fair Market Value of the Common Stock on the date the Stock Award is granted
covering more than one million (1,000,000) shares of Common Stock during any calendar year.

     (d) Consultants. A Consultant shall not be eligible for the grant of a Stock Award if, at the
time of grant, a Form S-8 Registration Statement under the Securities Act (“Form S-8”) is not
available to register either the offer or the sale of the Company’s securities to such Consultant
because of the nature of the services that the Consultant is providing to the Company, because the
Consultant is not a natural person, or because of any other rule governing the use of Form S-8.

6. Option Provisions.

     Each Option shall be in such form and shall contain such terms and conditions as the Board
shall deem appropriate. All Options shall be separately designated Incentive Stock Options or
Nonstatutory Stock Options at the time of grant, and, if certificates are issued, a separate
certificate or certificates shall be issued for shares of Common Stock purchased on exercise of
each type of Option. The provisions of separate Options need not be identical; provided, however,
that each Option Agreement shall include (through incorporation of provisions hereof by reference
in the Option or otherwise) the substance of each of the following provisions:

     (a) Term. The Board shall determine the term of an Option; provided, however, that subject
to the provisions of Section 5(b) regarding Ten Percent Stockholders, no Incentive Stock Option
shall be exercisable after the expiration of ten (10) years from the date on which it was granted.

     (b) Exercise Price of an Incentive Stock Option. Subject to the provisions of Section 5(b)
regarding Ten Percent Stockholders, the exercise price of each Incentive Stock

11.

 

Option shall be not less than one hundred percent (100%) of the Fair Market Value of the
Common Stock subject to the Option on the date the Option is granted. Notwithstanding the
foregoing, an Incentive Stock Option may be granted with an exercise price lower than that set
forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution
for another option in a manner consistent with the provisions of Section 424(a) of the Code.

     (c) Exercise Price of a Nonstatutory Stock Option. The exercise price of each Nonstatutory
Stock Option shall be not less than eighty-five percent (85%) of the Fair Market Value of the
Common Stock subject to the Option on the date the Option is granted. Notwithstanding the
foregoing, a Nonstatutory Stock Option may be granted with an exercise price lower than that set
forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution
for another option in a manner consistent with the provisions of Section 424(a) of the Code.

     (d) Consideration. The purchase price of Common Stock acquired pursuant to the exercise of an
Option shall be paid, to the extent permitted by applicable law and as determined by the Board in
its sole discretion, by any combination of the methods of payment set forth below. The Board shall
have the authority to grant Options that do not permit all of the following methods of payment (or
otherwise restrict the ability to use certain methods) and to grant Options that require the
consent of the Company to utilize a particular method of payment. The methods of payment permitted
by this Section 6(d) are:

          (i) by cash or check;

          (ii) pursuant to a program developed under Regulation T as promulgated by the Federal Reserve
Board that, prior to the issuance of Common Stock, results in either the receipt of cash (or check)
by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to
the Company from the sales proceeds; or

          (iii) by delivery to the Company (either by actual delivery or attestation) of shares of
Common Stock;

          (iv) by a “net exercise” arrangement pursuant to which the Company will reduce the number of
shares of Common Stock issued upon exercise by the largest whole number of shares with a Fair
Market Value that does not exceed the aggregate exercise price; provided, however, the Company
shall accept a cash payment from the Participant to the extent of any remaining balance of the
aggregate exercise price not satisfied by such holding back of whole shares; provided, however,
shares of Common Stock will no longer be outstanding under an Option and will not be exercisable
thereafter to the extent that (i) shares are used to pay the exercise price pursuant to the “net
exercise,” (ii) shares are delivered to the Participant as a result of such exercise, and (iii)
shares are withheld to satisfy tax withholding obligations;

          (v) according to a deferred payment or similar arrangement with the Optionholder (provided
that the Common Stock’s “par value” shall not be made by deferred payment at any time that the
Company is incorporated in Delaware); provided, however, that interest shall compound at least
annually and shall be charged at the minimum rate of interest

12.

 

necessary to avoid (i) the imputation of interest income to the Company and compensation
income to the Optionholder under any applicable provisions of the Code, and (ii) the treatment of
the Option as a variable award for financial accounting purposes; or

          (vi) in any other form of legal consideration that may be acceptable to the Board.

     (e) Transferability of Options. The Board may, in its sole discretion, impose such
limitations on the transferability of Options as the Board shall determine. In the absence of such
a determination by the Board to the contrary, the following restrictions on the transferability of
Options shall apply:

          (i) Restrictions on Transfer. An Option shall not be transferable except by will or by the
laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder
only by the Optionholder.

          (ii) Domestic Relations Orders. Notwithstanding the foregoing, an Option may be transferred
pursuant to a domestic relations order.

          (iii) Beneficiary Designation. Notwithstanding the foregoing, the Optionholder may, by
delivering written notice to the Company, in a form provided by or otherwise satisfactory to the
Company, designate a third party who, in the event of the death of the Optionholder, shall
thereafter be entitled to exercise the Option.

     (f) Vesting Generally. The total number of shares of Common Stock subject to an Option may
vest and therefore become exercisable in periodic installments that may or may not be equal. The
Option may be subject to such other terms and conditions on the time or times when it may or may
not be exercised (which may be based on performance or other criteria) as the Board may deem
appropriate. The vesting provisions of individual Options may vary. The provisions of this
Section 6(f) are subject to any Option provisions governing the minimum number of shares of Common
Stock as to which an Option may be exercised.

     (g) Termination of Continuous Service. In the event that an Optionholder’s Continuous Service
terminates (other than upon the Optionholder’s death or Disability), the Optionholder may exercise
his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of
the date of termination of Continuous Service) but only within such period of time ending on the
earlier of (i) the expiration of the term of the Option as set forth in the Option Agreement, or
(ii) the date three (3) months following the termination of the Optionholder’s Continuous Service
(or such longer or shorter period specified in the Option Agreement). If, after termination of
Continuous Service, the Optionholder does not exercise his or her Option within the time specified
herein or in the Option Agreement (as applicable), the Option shall terminate.

     (h) Extension of Termination Date. An Optionholder’s Option Agreement may provide that if the
exercise of the Option following the termination of the Optionholder’s Continuous Service (other
than upon the Optionholder’s death or Disability or upon a Change in Control) would be prohibited
at any time solely because the issuance of shares of Common Stock would violate the registration
requirements under the Securities Act, then the Option shall

13.

 

terminate on the earlier of (i) the expiration of the term of the Option as set forth in the
Option Agreement, or (ii) the expiration of a period of three (3) months after the termination of
the Optionholder’s Continuous Service during which the exercise of the Option would not be in
violation of such registration requirements.

     (i) Disability of Optionholder. In the event that an Optionholder’s Continuous Service
terminates as a result of the Optionholder’s Disability, the Optionholder may exercise his or her
Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of
termination of Continuous Service), but only within such period of time ending on the earlier of
(i) the expiration of the term of the Option as set forth in the Option Agreement, or (ii) the date
twelve (12) months following such termination of Continuous Service (or such longer or shorter
period specified in the Option Agreement). If, after termination of Continuous Service, the
Optionholder does not exercise his or her Option within the time specified herein or in the Option
Agreement (as applicable), the Option shall terminate.

     (j) Death of Optionholder. In the event that (i) an Optionholder’s Continuous Service
terminates as a result of the Optionholder’s death, or (ii) the Optionholder dies within the period
(if any) specified in the Option Agreement after the termination of the Optionholder’s Continuous
Service for a reason other than death, then the Option may be exercised (to the extent the
Optionholder was entitled to exercise such Option as of the date of death) by the Optionholder’s
estate, by a person who acquired the right to exercise the Option by bequest or inheritance or by a
person designated to exercise the option upon the Optionholder’s death, but only within the period
ending on the earlier of (i) the expiration of the term of such Option as set forth in the Option
Agreement, or (ii) the date eighteen (18) months following the date of death (or such longer or
shorter period specified in the Option Agreement). If, after the Optionholder’s death, the Option
is not exercised within the time specified herein or in the Option Agreement (as applicable), the
Option shall terminate.

     (k) Termination on or after a Change in Control. In the event that an Optionholder’s
Continuous Service terminates as of, or within twelve (12) months following a Change in Control,
the Optionholder may exercise his or her Option (to the extent that the Optionholder was entitled
to exercise such Option as of the date of termination of Continuous Service) within such period of
time ending on the earlier of (i) the date twelve (12) months following the effective date of the
Change in Control (or such longer or shorter period specified in the Option Agreement), or (ii) the
expiration of the term of the Option as set forth in the Option Agreement. If, after termination
of Continuous Service, the Optionholder does not exercise his or her Option within the time
specified herein or in the Option Agreement (as applicable), the Option shall terminate.

     (l) Early Exercise. The Option may include a provision whereby the Optionholder may elect at
any time before the Optionholder’s Continuous Service terminates to exercise the Option as to any
part or all of the shares of Common Stock subject to the Option prior to the full vesting of the
Option. Any unvested shares of Common Stock so purchased may be subject to a repurchase option in
favor of the Company or to any other restriction the Board determines to be appropriate. The
Company shall not be required to exercise its repurchase option until at least six (6) months (or
such longer or shorter period of time necessary to avoid a charge to earnings

14.

 

for financial accounting purposes) have elapsed following exercise of the Option unless the
Board otherwise specifically provides in the Option.

7. Provisions of Stock Awards other than Options.

     (a) Stock Purchase Awards. Each Stock Purchase Award Agreement shall be in such form and
shall contain such terms and conditions as the Board shall deem appropriate. At the Board’s
election, shares of Common Stock may be (i) held in book entry form subject to the Company’s
instructions until any restrictions relating to the Stock Purchase Award lapse; or (ii) evidenced
by a certificate, which certificate shall be held in such form and manner as determined by the
Board. The terms and conditions of Stock Purchase Award Agreements may change from time to time,
and the terms and conditions of separate Stock Purchase Award Agreements need not be identical,
provided, however, that each Stock Purchase Award Agreement shall include (through incorporation of
the provisions hereof by reference in the agreement or otherwise) the substance of each of the
following provisions:

          (i) Purchase Price. At the time of the grant of a Stock Purchase Award, the Board will
determine the price to be paid by the Participant for each share subject to the Stock Purchase
Award. To the extent required by applicable law, the price to be paid by the Participant for each
share of the Stock Purchase Award will not be less than the par value of a share of Common Stock.

          (ii) Consideration. At the time of the grant of a Stock Purchase Award, the Board will
determine the consideration permissible for the payment of the purchase price of the Stock Purchase
Award. The purchase price of Common Stock acquired pursuant to the Stock Purchase Award shall be
paid either: (i) in cash or by check at the time of purchase, (ii) at the discretion of the Board,
according to a deferred payment or other similar arrangement with the Participant, (iii) by past or
future services rendered to the Company, or (iv) in any other form of legal consideration that may
be acceptable to the Board in its sole discretion and permissible under applicable law.

          (iii) Vesting. Shares of Common Stock acquired under a Stock Purchase Award may be subject to
a share repurchase right or option in favor of the Company in accordance with a vesting schedule to
be determined by the Board.

          (iv) Termination of Participant’s Continuous Service. In the event that a Participant’s
Continuous Service terminates, the Company shall have the right, but not the obligation, to
repurchase or otherwise reacquire, any or all of the shares of Common Stock held by the Participant
that have not vested as of the date of termination under the terms of the Stock Purchase Award
Agreement. At the Board’s election, the price paid for all shares of Common Stock so repurchased
or reacquired by the Company may be at the lesser of: (i) the Fair Market Value on the relevant
date, or (ii) the Participant’s original cost for such shares. The Company shall not be required
to exercise its repurchase or reacquisition option until at least six (6) months (or such longer or
shorter period of time necessary to avoid a charge to earnings for financial accounting purposes)
have elapsed following the Participant’s purchase of the shares of stock acquired pursuant to the
Stock Purchase Award unless otherwise determined by the Board or provided in the Stock Purchase
Award Agreement.

15.

 

          (v) Transferability. Rights to purchase or receive shares of Common Stock granted under a
Stock Purchase Award shall be transferable by the Participant only upon such terms and conditions
as are set forth in the Stock Purchase Award Agreement, as the Board shall determine in its sole
discretion, and so long as Common Stock awarded under the Stock Purchase Award remains subject to
the terms of the Stock Purchase Award Agreement.

     (b) Stock Bonus Awards. Each Stock Bonus Award Agreement shall be in such form and shall
contain such terms and conditions as the Board shall deem appropriate. At the Board’s election,
shares of Common Stock may be (i) held in book entry form subject to the Company’s instructions
until any restrictions relating to the Stock Bonus Award lapse; or (ii) evidenced by a certificate,
which certificate shall be held in such form and manner as determined by the Board. The terms and
conditions of Stock Bonus Award Agreements may change from time to time, and the terms and
conditions of separate Stock Bonus Award Agreements need not be identical, provided, however, that
each Stock Bonus Award Agreement shall include (through incorporation of provisions hereof by
reference in the agreement or otherwise) the substance of each of the following provisions:

          (i) Consideration. A Stock Bonus Award may be awarded in consideration for (i) past or future
services rendered to the Company or an Affiliate, or (ii) any other form of legal consideration
that may be acceptable to the Board in its sole discretion and permissible under applicable law.

          (ii) Vesting. Shares of Common Stock awarded under the Stock Bonus Award Agreement may be
subject to forfeiture to the Company in accordance with a vesting schedule to be determined by the
Board.

          (iii) Termination of Participant’s Continuous Service. In the event a Participant’s
Continuous Service terminates, the Company may receive via a forfeiture condition, any or all of
the shares of Common Stock held by the Participant which have not vested as of the date of
termination of Continuous Service under the terms of the Stock Bonus Award Agreement.

          (iv) Transferability. Rights to acquire shares of Common Stock under the Stock Bonus Award
Agreement shall be transferable by the Participant only upon such terms and conditions as are set
forth in the Stock Bonus Award Agreement, as the Board shall determine in its sole discretion, so
long as Common Stock awarded under the Stock Bonus Award Agreement remains subject to the terms of
the Stock Bonus Award Agreement.

     (c) Stock Unit Awards. Each Stock Unit Award Agreement shall be in such form and shall
contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of
Stock Unit Award Agreements may change from time to time, and the terms and conditions of separate
Stock Unit Award Agreements need not be identical, provided, however, that each Stock Unit Award
Agreement shall include (through incorporation of the provisions hereof by reference in the
agreement or otherwise) the substance of each of the following provisions:

16.

 

          (i) Consideration. At the time of grant of a Stock Unit Award, the Board will determine the
consideration, if any, to be paid by the Participant upon delivery of each share of Common Stock
subject to the Stock Unit Award. The consideration to be paid (if any) by the Participant for each
share of Common Stock subject to a Stock Unit Award may be paid in any form of legal consideration
that may be acceptable to the Board in its sole discretion and permissible under applicable law.

          (ii) Vesting. At the time of the grant of a Stock Unit Award, the Board may impose such
restrictions or conditions to the vesting of the Stock Unit Award as it, in its sole discretion,
deems appropriate.

          (iii) Payment. A Stock Unit Award may be settled by the delivery of shares of Common Stock,
their cash equivalent, any combination thereof or in any other form of consideration, as determined
by the Board and contained in the Stock Unit Award Agreement.

          (iv) Additional Restrictions. At the time of the grant of a Stock Unit Award, the Board, as
it deems appropriate, may impose such restrictions or conditions that delay the delivery of the
shares of Common Stock (or their cash equivalent) subject to a Stock Unit Award after the vesting
of such Stock Unit Award.

          (v) Dividend Equivalents. Dividend equivalents may be credited in respect of shares of Common
Stock covered by a Stock Unit Award, as determined by the Board and contained in the Stock Unit
Award Agreement. At the sole discretion of the Board, such dividend equivalents may be converted
into additional shares of Common Stock covered by the Stock Unit Award in such manner as determined
by the Board. Any additional shares covered by the Stock Unit Award credited by reason of such
dividend equivalents will be subject to all the terms and conditions of the underlying Stock Unit
Award Agreement to which they relate.

          (vi) Termination of Participant’s Continuous Service. Except as otherwise provided in the
applicable Stock Unit Award Agreement, such portion of the Stock Unit Award that has not vested
will be forfeited upon the Participant’s termination of Continuous Service.

     (d) Stock Appreciation Rights. Each Stock Appreciation Right Agreement shall be in such form
and shall contain such terms and conditions as the Board shall deem appropriate. The terms and
conditions of Stock Appreciation Right Agreements may change from time to time, and the terms and
conditions of separate Stock Appreciation Right Agreements need not be identical; provided,
however, that each Stock Appreciation Right Agreement shall include (through incorporation of the
provisions hereof by reference in the agreement or otherwise) the substance of each of the
following provisions:

          (i) Strike Price and Calculation of Appreciation. Each Stock Appreciation Right will be
denominated in shares of Common Stock equivalents. The appreciation distribution payable on the
exercise of a Stock Appreciation Right will be not greater than an amount equal to the excess of
(i) the aggregate Fair Market Value (on the date of the exercise of the Stock Appreciation Right)
of a number of shares of Common Stock equal to the number of share of Common Stock equivalents in
which the Participant is vested under such Stock Appreciation Right, and with respect to which the
Participant is exercising the Stock

17.

 

Appreciation Right on such date, over (ii) an amount (the strike price) that will be
determined by the Board at the time of grant of the Stock Appreciation Right.

          (ii) Vesting. At the time of the grant of a Stock Appreciation Right, the Board may impose
such restrictions or conditions to the vesting of such Stock Appreciation Right as it, in its sole
discretion, deems appropriate.

          (iii) Exercise. To exercise any outstanding Stock Appreciation Right, the Participant must
provide written notice of exercise to the Company in compliance with the provisions of the Stock
Appreciation Right Agreement evidencing such Stock Appreciation Right.

          (iv) Payment. The appreciation distribution in respect to a Stock Appreciation Right may be
paid in Common Stock, in cash, in any combination of the two or in any other form of consideration,
as determined by the Board and contained in the Stock Appreciation Right Agreement evidencing such
Stock Appreciation Right.

          (v) Termination of Continuous Service. In the event that a Participant’s Continuous Service
terminates, the Participant may exercise his or her Stock Appreciation Right (to the extent that
the Participant was entitled to exercise such Stock Appreciation Right as of the date of
termination) but only within such period of time ending on the earlier of (i) the date three (3)
months following the termination of the Participant’s Continuous Service (or such longer or shorter
period specified in the Stock Appreciation Right Agreement), or (ii) the expiration of the term of
the Stock Appreciation Right as set forth in the Stock Appreciation Right Agreement. If, after
termination, the Participant does not exercise his or her Stock Appreciation Right within the time
specified herein or in the Stock Appreciation Right Agreement (as applicable), the Stock
Appreciation Right shall terminate.

     (e) Other Stock Awards. Other forms of Stock Awards valued in whole or in part by reference
to, or otherwise based on, Common Stock may be granted either alone or in addition to Stock Awards
provided for under Section 6 and the preceding provisions of this Section 7. Subject to the
provisions of the Plan, the Board shall have sole and complete authority to determine the persons
to whom and the time or times at which such Other Stock Awards will be granted, the number of
shares of Common Stock (or the cash equivalent thereof) to be granted pursuant to such Other Stock
Awards and all other terms and conditions of such Other Stock Awards.

8. Covenants of the Company.

     (a) Availability of Shares. During the terms of the Stock Awards, the Company shall keep
available at all times the number of shares of Common Stock required to satisfy such Stock Awards.

     (b) Securities Law Compliance. The Company shall seek to obtain from each regulatory
commission or agency having jurisdiction over the Plan such authority as may be required to grant
Stock Awards and to issue and sell shares of Common Stock upon exercise of the Stock Awards;
provided, however, that this undertaking shall not require the Company to register under the
Securities Act the Plan, any Stock Award or any Common Stock issued or

18.

 

issuable pursuant to any such Stock Award. If, after reasonable efforts, the Company is
unable to obtain from any such regulatory commission or agency the authority that counsel for the
Company deems necessary for the lawful issuance and sale of Common Stock under the Plan, the
Company shall be relieved from any liability for failure to issue and sell Common Stock upon
exercise of such Stock Awards unless and until such authority is obtained.

9. Use of Proceeds from Sales of Common Stock.

     Proceeds from the sale of Common Stock pursuant to Stock Awards shall constitute general funds
of the Company.

10. Miscellaneous.

     (a) Acceleration of Exercisability and Vesting. The Board shall have the power to accelerate
the time at which a Stock Award may first be exercised or the time during which a Stock Award or
any part thereof will vest in accordance with the Plan, notwithstanding the provisions in the Stock
Award stating the time at which it may first be exercised or the time during which it will vest.

     (b) Stockholder Rights. No Participant shall be deemed to be the holder of, or to have any of
the rights of a holder with respect to, any shares of Common Stock subject to such Stock Award
unless and until such Participant has satisfied all requirements for exercise of the Stock Award
pursuant to its terms.

     (c) No Employment or Other Service Rights. Nothing in the Plan, any Stock Award Agreement or
other instrument executed thereunder or any Stock Award granted pursuant thereto shall confer upon
any Participant any right to continue to serve the Company or an Affiliate in the capacity in
effect at the time the Stock Award was granted or shall affect the right of the Company or an
Affiliate to terminate (i) the employment of an Employee with or without notice and with or without
cause, (ii) the service of a Consultant pursuant to the terms of such Consultant’s agreement with
the Company or an Affiliate, or (iii) the service of a Director pursuant to the Bylaws of the
Company or an Affiliate, and any applicable provisions of the corporate law of the state in which
the Company or the Affiliate is incorporated, as the case may be.

     (d) Incentive Stock Option $100,000 Limitation. To the extent that the aggregate Fair Market
Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock
Options are exercisable for the first time by any Optionholder during any calendar year (under all
plans of the Company and any Affiliates) exceeds one hundred thousand dollars ($100,000), the
Options or portions thereof that exceed such limit (according to the order in which they were
granted) shall be treated as Nonstatutory Stock Options, notwithstanding any contrary provision of
the applicable Option Agreement(s).

     (e) Investment Assurances. The Company may require a Participant, as a condition of
exercising or acquiring Common Stock under any Stock Award, (i) to give written assurances
satisfactory to the Company as to the Participant’s knowledge and experience in financial and
business matters and/or to employ a purchaser representative reasonably satisfactory to the Company
who is knowledgeable and experienced in financial and business matters and that he or

19.

 

she is capable of evaluating, alone or together with the purchaser representative, the merits
and risks of exercising the Stock Award; and (ii) to give written assurances satisfactory to the
Company stating that the Participant is acquiring Common Stock subject to the Stock Award for the
Participant’s own account and not with any present intention of selling or otherwise distributing
the Common Stock. The foregoing requirements, and any assurances given pursuant to such
requirements, shall be inoperative if (i) the issuance of the shares upon the exercise or
acquisition of Common Stock under the Stock Award has been registered under a then currently
effective registration statement under the Securities Act, or (ii) as to any particular
requirement, a determination is made by counsel for the Company that such requirement need not be
met in the circumstances under the then applicable securities laws. The Company may, upon advice
of counsel to the Company, place legends on stock certificates issued under the Plan as such
counsel deems necessary or appropriate in order to comply with applicable securities laws,
including, but not limited to, legends restricting the transfer of the Common Stock.

     (f) Withholding Obligations. To the extent provided by the terms of a Stock Award Agreement,
the Company may, in its sole discretion, satisfy any federal, state or local tax withholding
obligation relating to a Stock Award by any of the following means (in addition to the Company’s
right to withhold from any compensation paid to the Participant by the Company) or by a combination
of such means: (i) causing the Participant to tender a cash payment; (ii) withholding shares of
Common Stock from the shares of Common Stock issued or otherwise issuable to the Participant in
connection with the Stock Award; or (iii) by such other method as may be set forth in the Stock
Award Agreement.

     (g) Electronic Delivery. Any reference herein to a “written” agreement or document shall
include any agreement or document delivered electronically or posted on the Company’s intranet.

11. Adjustments upon Changes in Common Stock; Corporate Transactions.

     (a) Capitalization Adjustments. If any change is made in, or other events occur with respect
to, the Common Stock subject to the Plan or subject to any Stock Award after the effective date of
the Plan set forth in Section 14 without the receipt of consideration by the Company (through
merger, consolidation, reorganization, recapitalization, reincorporation, stock dividend, dividend
in property other than cash, stock split, liquidating dividend, combination of shares, exchange of
shares, change in corporate structure or other transaction not involving the receipt of
consideration by the Company (each a “Capitalization Adjustment”)), the Plan shall be appropriately
adjusted in the class(es) and maximum number of securities subject to the Plan or Incentive Stock
Options pursuant to Sections 4(a) and 4(b), the class(es) and number of securities subject to each
outstanding stock award under the 1999 Plan that are added from time to time to the share reserve
under the Plan pursuant to Section 4(a), the maximum number of securities that may be awarded to
any person pursuant to Section 5(c), and the outstanding Stock Awards will be appropriately
adjusted in the class(es) and number of securities and price per share of stock subject to such
outstanding Stock Awards. The Board shall make such adjustments, and its determination shall be
final, binding and conclusive. (Notwithstanding the foregoing, the conversion of any convertible
securities of the Company shall not be treated as a transaction “without receipt of consideration”
by the Company.)

20.

 

     (b) Dissolution or Liquidation. In the event of a dissolution or liquidation of the Company,
all outstanding Stock Awards (other than Stock Awards consisting of vested and outstanding shares
of Common Stock not subject to the Company’s right of repurchase) shall terminate immediately prior
to the completion of such dissolution or liquidation, and the shares of Common Stock subject to the
Company’s repurchase option may be repurchased by the Company notwithstanding the fact that the
holder of such Stock Award is providing Continuous Service, provided, however, that the Board may,
in its sole discretion, cause some or all Stock Awards to become fully vested, exercisable and/or
no longer subject to repurchase or forfeiture (to the extent such Stock Awards have not previously
expired or terminated) before the dissolution or liquidation is completed but contingent on its
completion.

     (c) Corporate Transaction. The following provisions shall apply to Stock Awards in the event
of a Corporate Transaction unless otherwise provided in a written agreement between the Company or
any Affiliate and the holder of the Stock Award:

          (i) Stock Awards May Be Assumed. In the event of a Corporate Transaction, any surviving
corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company)
may assume or continue any or all Stock Awards outstanding under the Plan or may substitute similar
stock awards for Stock Awards outstanding under the Plan (including but not limited to, awards to
acquire the same consideration paid to the stockholders of the Company pursuant to the Corporate
Transaction), and any reacquisition or repurchase rights held by the Company in respect of Common
Stock issued pursuant to Stock Awards may be assigned by the Company to the successor of the
Company (or the successor’s parent company, if any), in connection with such Corporate Transaction.
A surviving corporation or acquiring corporation may choose to assume or continue only a portion
of a Stock Award or substitute a similar stock award for only a portion of a Stock Award. The
terms of any assumption, continuation or substitution shall be set by the Board in accordance with
the provisions of Section 3.

          (ii) Stock Awards Held by Participants and Recent Participants. In the event of a Corporate
Transaction in which the surviving corporation or acquiring corporation (or its parent company)
does not assume or continue such outstanding Stock Awards or substitute similar stock awards for
such outstanding Stock Awards, then with respect to Stock Awards that have not been assumed,
continued or substituted and that are held by Participants whose Continuous Service has not
terminated more than three (3) months prior to the effective time of the Corporate Transaction
(referred to as the “Participants and Recent Participants”), the vesting of such Stock Awards (and,
if applicable, the time at which such Stock Awards may be exercised) shall (contingent upon the
effectiveness of the Corporate Transaction) be accelerated in full to a date prior to the effective
time of such Corporate Transaction as the Board shall determine (or, if the Board shall not
determine such a date, to the date that is five (5) days prior to the effective time of the
Corporate Transaction), and such Stock Awards shall terminate if not exercised (if applicable) at
or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase
rights held by the Company with respect to such Stock Awards shall lapse (contingent upon the
effectiveness of the Corporate Transaction).

          (iii) Stock Awards Held by Other Former Participants. In the event of a Corporate Transaction
in which the surviving corporation or acquiring corporation (or its parent

21.

 

company) does not assume or continue such outstanding Stock Awards or substitute similar stock
awards for such outstanding Stock Awards, then with respect to Stock Awards that have not been
assumed, continued or substituted and that are held by persons other than Participants and Recent
Participants, the vesting of such Stock Awards (and, if applicable, the time at which such Stock
Award may be exercised) shall not be accelerated and such Stock Awards (other than a Stock Award
consisting of vested and outstanding shares of Common Stock not subject to the Company’s right of
repurchase) shall terminate if not exercised (if applicable) prior to the effective time of the
Corporate Transaction; provided, however, that any reacquisition or repurchase rights held by the
Company with respect to such Stock Awards shall not terminate and may continue to be exercised
notwithstanding the Corporate Transaction.

          (iv) Payment for Stock Awards in Lieu of Exercise. Notwithstanding the foregoing, in the
event a Stock Award will terminate if not exercised prior to the effective time of a Corporate
Transaction, the Board may provide, in its sole discretion, that the holder of such Stock Award may
not exercise such Stock Award but will receive a payment, in such form as may be determined by the
Board, equal in value to the excess, if any, of (i) the value of the property the holder of the
Stock Award would have received upon the exercise of the Stock Award, over (ii) any exercise price
payable by such holder in connection with such exercise.

     (d) Change in Control. A Stock Award may be subject to additional acceleration of vesting and
exercisability upon or after a Change in Control as may be provided in the Stock Award Agreement
for such Stock Award or as may be provided in any other written agreement between the Company or
any Affiliate and the Participant, but in the absence of such provision, no such acceleration shall
occur.

12. Amendment of the Plan and Stock Awards.

     (a) Amendment of Plan. Subject to the limitations, if any, of applicable law, the Board at
any time, and from time to time, may amend the Plan. However, except as provided in Section 11(a)
relating to Capitalization Adjustments, no amendment shall be effective unless approved by the
stockholders of the Company to the extent stockholder approval is necessary to satisfy applicable
law.

     (b) Stockholder Approval. The Board, in its sole discretion, may submit any other amendment
to the Plan for stockholder approval, including, but not limited to, amendments to the Plan
intended to satisfy the requirements of Section 162(m) of the Code and the regulations thereunder
regarding the exclusion of performance-based compensation from the limit on corporate deductibility
of compensation paid to Covered Employees.

     (c) Contemplated Amendments. It is expressly contemplated that the Board may amend the Plan
in any respect the Board deems necessary or advisable to provide eligible Employees with the
maximum benefits provided or to be provided under the provisions of the Code and the regulations
promulgated thereunder relating to Incentive Stock Options and/or to bring the Plan and/or
Incentive Stock Options granted under it into compliance therewith.

     (d) No Impairment of Rights. Rights under any Stock Award granted before amendment of the
Plan shall not be impaired by any amendment of the Plan unless (i) the

22.

 

Company requests the consent of the affected Participant, and (ii) such Participant consents
in writing.

     (e) Amendment of Stock Awards. The Board, at any time and from time to time, may amend the
terms of any one or more Stock Awards, including, but not limited to, amendments to provide terms
more favorable than previously provided in the Stock Award Agreement, subject to any specified
limits in the Plan that are not subject to Board discretion; provided, however, that the rights
under any Stock Award shall not be impaired by any such amendment unless (i) the Company requests
the consent of the affected Participant, and (ii) such Participant consents in writing.

13. Termination or Suspension of the Plan.

     (a) Plan Term. The Board may suspend or terminate the Plan at any time. Unless sooner
terminated, the Plan shall terminate on the day before the tenth (10th) anniversary of the date the
Plan is adopted by the Board or approved by the stockholders of the Company, whichever is earlier.
No Stock Awards may be granted under the Plan while the Plan is suspended or after it is
terminated.

     (b) No Impairment of Rights. Suspension or termination of the Plan shall not impair rights
and obligations under any Stock Award granted while the Plan is in effect except with the written
consent of the affected Participant.

14. Effectiveness of Plan.

     No Stock Award shall be exercised (or, in the case of a Stock Purchase Award, Stock Bonus
Award, Stock Unit Award, or Other Stock Award shall be granted) unless and until (i) the Plan has
been approved by the stockholders of the Company, which approval shall be within twelve (12) months
before or after the date the Plan is adopted by the Board and (ii) the IPO Date has occurred.

15. Choice of Law.

     The law of the State of Delaware shall govern all questions concerning the construction,
validity and interpretation of this Plan, without regard to such state’s conflict of laws rules.

23.exv10w8

 

Exhibit 10.8

XenoPort, Inc.

2005 Equity Incentive Plan

Option Agreement

(Incentive Stock Option or Nonstatutory Stock Option)

     Pursuant to your Stock Option Grant Notice (“Grant Notice”) and this Option Agreement,
XenoPort, Inc. (the “Company”) has granted you an option under its 2005 Equity Incentive Plan (the
“Plan”) to purchase the number of shares of the Company’s Common Stock indicated in your Grant
Notice at the exercise price indicated in your Grant Notice. Defined terms not explicitly defined
in this Option Agreement but defined in the Plan shall have the same definitions as in the Plan.

     The details of your option are as follows:

     1. Vesting. Subject to the limitations contained herein, your option will vest as
provided in your Grant Notice, provided that vesting will cease upon the termination of your
Continuous Service.

     2. Number of Shares and Exercise Price. The number of shares of Common Stock subject
to your option and your exercise price per share referenced in your Grant Notice may be adjusted
from time to time for Capitalization Adjustments.

     3. Method of Payment. Payment of the exercise price is due in full upon exercise of
all or any part of your option. You may elect to make payment of the exercise price in cash or by
check or in any other manner permitted by your Grant Notice, which may include one or more of the
following:

          (a) In the Company’s sole discretion at the time your option is exercised and provided that at
the time of exercise the Common Stock is publicly traded and quoted regularly in The Wall Street
Journal, pursuant to a program developed under Regulation T as promulgated by the Federal Reserve
Board that, prior to the issuance of Common Stock, results in either the receipt of cash (or check)
by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to
the Company from the sales proceeds.

          (b) In the Company’s sole discretion at the time your option is exercised and provided that at
the time of exercise the Common Stock is publicly traded and quoted regularly in The Wall Street
Journal, by delivery to the Company (either by actual delivery or attestation) of already-owned
shares of Common Stock either that you have held for the period required to avoid a charge to the
Company’s reported earnings (generally six (6) months) or that you did not acquire, directly or
indirectly from the Company, that are owned free and clear of any liens, claims, encumbrances or
security interests, and that are valued at Fair Market Value on the date of exercise. “Delivery”
for these purposes, in the sole discretion of the Company at the time you exercise your option,
shall include delivery to the Company of your attestation of ownership of such shares of Common
Stock in a form approved by the Company. Notwithstanding the foregoing, you may not exercise your
option by tender to the Company of Common Stock to the

1 .

 

extent such tender would violate the provisions of any law, regulation or agreement
restricting the redemption of the Company’s stock.

     4. Whole Shares. You may exercise your option only for whole shares of Common Stock.

     5. Securities Law Compliance. Notwithstanding anything to the contrary contained
herein, you may not exercise your option unless the shares of Common Stock issuable upon such
exercise are then registered under the Securities Act or, if such shares of Common Stock are not
then so registered, the Company has determined that such exercise and issuance would be exempt from
the registration requirements of the Securities Act. The exercise of your option also must comply
with other applicable laws and regulations governing your option, and you may not exercise your
option if the Company determines that such exercise would not be in material compliance with such
laws and regulations.

     6. Term. You may not exercise your option before the commencement or after the
expiration of its term. The term of your option commences on the Date of Grant and expires upon
the earliest of the following:

          (a) three (3) months after the termination of your Continuous Service for any reason other
than your Disability or death, provided that if during any part of such three (3) month period your
option is not exercisable solely because of the condition set forth in Section 5, your option shall
not expire until the earlier of the Expiration Date or until it shall have been exercisable for an
aggregate period of three (3) months after the termination of your Continuous Service;

          (b) twelve (12) months after the termination of your Continuous Service due to your
Disability;

          (c) eighteen (18) months after your death if you die either during your Continuous Service or
within three (3) months after your Continuous Service terminates;

          (d) twelve (12) months following the effective date of a Change in Control if your Continuous
Service terminates as of or within twelve (12) months following such Change in Control;

          (e) the Expiration Date indicated in your Grant Notice; or

          (f) the day before the tenth (10th) anniversary of the Date of Grant.

     If your option is an Incentive Stock Option, note that to obtain the federal income tax
advantages associated with an Incentive Stock Option, the Code requires that at all times beginning
on the date of grant of your option and ending on the day three (3) months before the date of your
option’s exercise, you must be an employee of the Company or an Affiliate, except in the event of
your death or your permanent and total disability, as defined in Section 22(e) of the Code. (The
definition of disability in Section 22(e) of the Code is different from the definition of the
Disability under the Plan). The Company has provided for extended exercisability of your option
under certain circumstances for your benefit but cannot guarantee

2 .

 

that your option will necessarily be treated as an Incentive Stock Option if you continue to
provide services to the Company or an Affiliate as a Consultant or Director after your employment
terminates or if you otherwise exercise your option more than three (3) months after the date your
employment with the Company or an Affiliate terminates.

     7. Exercise.

          (a) You may exercise the vested portion of your option (and the unvested portion of your
option if your Grant Notice so permits) during its term by delivering a Notice of Exercise (in a
form designated by the Company) together with the exercise price to the Secretary of the Company,
or to such other person as the Company may designate, during regular business hours, together with
such additional documents as the Company may then require.

          (b) By exercising your option you agree that, as a condition to any exercise of your option,
the Company may require you to enter into an arrangement providing for the payment by you to the
Company of any tax withholding obligation of the Company arising by reason of (i) the exercise of
your option, (ii) the lapse of any substantial risk of forfeiture to which the shares of Common
Stock are subject at the time of exercise, or (iii) the disposition of shares of Common Stock
acquired upon such exercise.

          (c) If your option is an Incentive Stock Option, by exercising your option you agree that you
will notify the Company in writing within fifteen (15) days after the date of any disposition of
any of the shares of the Common Stock issued upon exercise of your option that occurs within two
(2) years after the date of your option grant or within one (1) year after such shares of Common
Stock are transferred upon exercise of your option.

     8. Transferability. Your option is not transferable, except by will or by the laws
of descent and distribution, and is exercisable during your life only by you. Notwithstanding the
foregoing, by delivering written notice to the Company, in a form satisfactory to the Company, you
may designate a third party who, in the event of your death, shall thereafter be entitled to
exercise your option. In addition, you may transfer your option to a trust if you are considered
to be the sole beneficial owner (determined under Section 671 of the Code and applicable state law)
while the option is held in the trust, provided that you and the trustee enter into transfer and
other agreements required by the Company.

     9. Change In Control. 

          (a) If your Continuous Service terminates within twelve (12) months following the effective
date of a Change in Control due to (i) an involuntary termination (excluding death or Disability)
without Cause, or (ii) a voluntary termination for Good Reason, the vesting and exercisability of
your option shall be accelerated in full.

          (b) “Cause” shall have the meaning set forth in the Plan.

          (c) “Good Reason” means that one or more of the following are undertaken by the Company
without your express written consent: (i) the assignment to you of any duties or responsibilities
that results in a material diminution in your function as in effect immediately prior to the
effective date of the Change in Control; provided, however, that neither a change in

3 .

 

your title or reporting relationships nor the Common Stock ceasing to be listed on any
established stock exchange or traded on the Nasdaq National Market or the Nasdaq SmallCap Market
shall provide the basis for a voluntary termination with Good Reason; (ii) a material reduction by
the Company in your annual base salary, as in effect on the effective date of the Change in Control
or as increased thereafter; provided, however, that Good Reason shall not be deemed to have
occurred in the event of a reduction in your annual base salary that is pursuant to a salary
reduction program affecting substantially all of the employees of the Company and that does not
adversely affect you to a greater extent than other similarly situated employees; (iii) any failure
by the Company to continue in effect any material benefit plan or program, including incentive
plans or plans with respect to the receipt of securities of the Company, in which you were
participating immediately prior to the effective date of the Change in Control (hereinafter
referred to as “Benefit Plans”), or the taking of any action by the Company that would materially
adversely affect your participation in or materially reduce your benefits under the Benefit Plans
or deprive you of any material fringe benefit that you enjoyed immediately prior to the effective
date of the Change in Control; provided, however, that Good Reason shall not be deemed to have
occurred if the Company provides for your participation in benefit plans and programs that, taken
as a whole, are comparable to the Benefit Plans; (iv) a relocation of your business office to a
location more than fifty (50) miles from the location at which you performed your duties as of the
effective date of the Change in Control, except for required travel by you on the Company’s
business to an extent substantially consistent with your business travel obligations prior to the
effective date of the Change in Control; or (v) a material breach by the Company of any provision
of the Plan or the Option Agreement or any other material agreement between you and the Company
concerning the terms and conditions of your employment.

          (d) If any payment or benefit you would receive pursuant to a Change in Control from the
Company or otherwise (“Payment”) would (i) constitute a “parachute payment” within the meaning of
Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by
Section 4999 of the Code (the “Excise Tax”), then such Payment shall be equal to the Reduced
Amount. The “Reduced Amount” shall be either (x) the largest portion of the Payment that would
result in no portion of the Payment being subject to the Excise Tax, or (y) the largest portion, up
to and including the total, of the Payment, whichever amount, after taking into account all
applicable federal, state and local employment taxes, income taxes, and the Excise Tax (all
computed at the highest applicable marginal rate), results in your receipt, on an after-tax basis,
of the greater amount of the Payment notwithstanding that all or some portion of the Payment may be
subject to the Excise Tax. If a reduction in payments or benefits constituting “parachute payments”
is necessary so that the Payment equals the Reduced Amount, reduction shall occur in the following
order unless you elect in writing a different order (provided, however, that such election shall be
subject to Company approval if made on or after the effective date of the event that triggers the
Payment): reduction of cash payments; cancellation of accelerated vesting of Stock Awards;
reduction of employee benefits. In the event that acceleration of vesting of Stock Award
compensation is to be reduced, such acceleration of vesting shall be cancelled in the reverse order
of the date of grant of your Stock Awards (i.e., earliest granted Stock Award cancelled last)
unless you elect in writing a different order for cancellation.

          (e) The accounting firm engaged by the Company for general tax purposes as of the day prior to
the effective date of the Change in Control shall perform the foregoing

4 .

 

calculations. If the accounting firm so engaged by the Company is serving as accountant or
auditor for the individual, entity or group effecting the Change in Control, the Company shall
appoint a nationally recognized accounting firm to make the determinations required hereunder. The
Company shall bear all expenses with respect to the determinations by such accounting firm required
to be made hereunder.

          (f) The accounting firm engaged to make the determinations hereunder shall provide its
calculations, together with detailed supporting documentation, to you and the Company within
fifteen (15) calendar days after the date on which your right to a Payment is triggered (if
requested at that time by you or the Company) or such other time as requested by you or the
Company. If the accounting firm determines that no Excise Tax is payable with respect to a
Payment, either before or after the application of the Reduced Amount, it shall furnish you and the
Company with an opinion reasonably acceptable to you that no Excise Tax will be imposed with
respect to such Payment. Any good faith determinations of the accounting firm made hereunder shall
be final, binding and conclusive upon you and the Company.

     10. Option not a Service Contract. Your option is not an employment or service
contract, and nothing in your option shall be deemed to create in any way whatsoever any obligation
on your part to continue in the employ of the Company or an Affiliate, or of the Company or an
Affiliate to continue your employment. In addition, nothing in your option shall obligate the
Company or an Affiliate, their respective stockholders, Boards of Directors, Officers or Employees
to continue any relationship that you might have as a Director or Consultant for the Company or an
Affiliate.

     11. Withholding Obligations.

          (a) At the time you exercise your option, in whole or in part, or at any time thereafter as
requested by the Company, you hereby authorize withholding from payroll and any other amounts
payable to you, and otherwise agree to make adequate provision for (including by means of a
“cashless exercise” pursuant to a program developed under Regulation T as promulgated by the
Federal Reserve Board to the extent permitted by the Company), any sums required to satisfy the
federal, state, local and foreign tax withholding obligations of the Company or an Affiliate, if
any, which arise in connection with the exercise of your option.

          (b) Upon your request and subject to approval by the Company, in its sole discretion, and
compliance with any applicable legal conditions or restrictions, the Company may withhold from
fully vested shares of Common Stock otherwise issuable to you upon the exercise of your option a
number of whole shares of Common Stock having a Fair Market Value, determined by the Company as of
the date of exercise, not in excess of the minimum amount of tax required to be withheld by law (or
such lower amount as may be necessary to avoid variable award accounting). If the date of
determination of any tax withholding obligation is deferred to a date later than the date of
exercise of your option, share withholding pursuant to the preceding sentence shall not be
permitted unless you make a proper and timely election under Section 83(b) of the Code, covering
the aggregate number of shares of Common Stock acquired upon such exercise with respect to which
such determination is otherwise deferred, to accelerate the determination of such tax withholding
obligation to the date of exercise of your option. Notwithstanding the filing of such election,
shares of Common Stock shall be withheld solely

5 .

 

from fully vested shares of Common Stock determined as of the date of exercise of your option
that are otherwise issuable to you upon such exercise. Any adverse consequences to you arising in
connection with such share withholding procedure shall be your sole responsibility.

          (c) You may not exercise your option unless the tax withholding obligations of the Company
and/or any Affiliate are satisfied. Accordingly, you may not be able to exercise your option when
desired even though your option is vested, and the Company shall have no obligation to issue a
certificate for such shares of Common Stock or release such shares of Common Stock from any escrow
provided for herein unless such obligations are satisfied.

     12. Notices. Any notices provided for in your option or the Plan shall be given in
writing and shall be deemed effectively given upon receipt or, in the case of notices delivered by
mail by the Company to you, five (5) days after deposit in the United States mail, postage prepaid,
addressed to you at the last address you provided to the Company.

     13. Governing Plan Document. Your option is subject to all the provisions of the
Plan, the provisions of which are hereby made a part of your option, and is further subject to all
interpretations, amendments, rules and regulations, which may from time to time be promulgated and
adopted pursuant to the Plan. In the event of any conflict between the provisions of your option
and those of the Plan, the provisions of the Plan shall control.

6 .

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