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                                                                    EXHIBIT 10.2

                        DYNAVAX TECHNOLOGIES CORPORATION

                           1997 EQUITY INCENTIVE PLAN

                            ADOPTED JANUARY 22, 1997

                          AMENDED ON DECEMBER 17, 1998

                           AMENDED ON JANUARY 20, 2000

                             AMENDED ON MAY 10, 2000

1. PURPOSES.

      (a) The purpose of the Plan is to provide a means by which selected
Employees and Directors of and Consultants to the Company, and its Affiliates,
may be given an opportunity to benefit from increases in value of the stock of
the Company through the granting of (i) Incentive Stock Options, (ii)
Nonstatutory Stock Options, (iii) stock bonuses, and (iv) rights to purchase
restricted stock.

      (b) The Company, by means of the Plan, seeks to retain the services of
persons who are now Employees or Directors of or Consultants to the Company or
its Affiliates, to secure and retain the services of new Employees, Directors
and Consultants, and to provide incentives for such persons to exert maximum
efforts for the success of the Company and its Affiliates.

      (c) The Company intends that the Stock Awards issued under the Plan shall,
in the discretion of the Board or any Committee to which responsibility for
administration of the Plan has been delegated pursuant to subsection 3(c), be
either (i) Options granted pursuant to Section 6, including Incentive Stock
Options and Nonstatutory Stock Options, or (ii) stock bonuses or rights to
purchase restricted stock granted pursuant to Section 7. All Options shall be
separately designated Incentive Stock Options or Nonstatutory Stock Options at
the time of grant, and in such form as issued pursuant to Section 6, and a
separate certificate or certificates will be issued for shares purchased on
exercise of each type of Option. Further the Company intends that Stock Awards
issued under the Plan shall comply with the provisions of Rule 701 promulgated
by the Securities and Exchange Commission under the Securities Act and are also
intended to be exempt from the securities qualification requirements of the
California Corporations Code pursuant to Section 25102(o) of that code.

2. DEFINITIONS.

      (a) "AFFILIATE" means any parent corporation or subsidiary corporation,
whether now or hereafter existing, as those terms are defined in Sections 424(e)
and respectively, of the Code.
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      (b) "BOARD" means the Board of Directors of the Company.

      (c) "CAUSE" means, with respect to the termination by the Company or an
Affiliate of an individual's Continuous Status as an Employee, Director or
Consultant, that such termination is for "Cause" as such term is expressly
defined in a then-effective written agreement between the individual and the
Company or such Affiliate, or in the absence of such then-effective written
agreement and definition, is based on, in the determination of the
Administrator, the individual's: (i) refusal or failure to act in accordance
with any specific, lawful direction or order of the Company or an Affiliate;
(ii) unfitness or unavailability for service or unsatisfactory performance
(other than as a result of disability); (iii) performance of any act or failure
to perform any act in bad faith and to the detriment of the Company or an
Affiliate; (iv) dishonesty, intentional misconduct or material breach of any
agreement with the Company or an Affiliate; or (v) commission of a crime
involving dishonesty, breach of trust, or physical or emotional harm to any
person. At least 30 days prior to the termination of the individual's Continuous
Status as an Employee, Director or Consultant pursuant to (i) or (ii) above, the
Company shall provide the individual with notice of the Company's or such
Affiliate's intent to terminate, the reason therefor, and an opportunity for the
individual to cure such defects in his or her service to the Company's or such
Affiliate's satisfaction. During this 30 day (or longer) period, no Stock Award
issued to the individual under the Plan may be exercised or purchased.

      (d) "CODE" means the Internal Revenue Code of 1986, as amended.

      (e) "COMMITTEE" means a Committee appointed by the Board in accordance
with subsection 3(c) of the Plan.

      (f) "COMPANY" means Dynavax Technologies Corporation, a California
corporation.

      (g) "CONSULTANT" means any person, including an advisor, engaged by the
Company or an Affiliate to render consulting services and who is compensated for
such services, provided that the term "Consultant" shall not include Directors
who are paid only a director's fee by the Company or who are not compensated by
the Company for their services as Directors.

      (h) "CONTINUOUS STATUS AS AN EMPLOYEE, DIRECTOR OR CONSULTANT" means that
the service of an individual to the Company, whether as an Employee, Director or
Consultant, is not interrupted or terminated. The Board or the chief executive
officer of the Company may determine, in that party's sole discretion, whether
Continuous Status as an Employee, Director or Consultant shall be considered
interrupted in the case of: (i) any leave of absence approved by the Board or
the chief executive officer of the Company, including sick leave, military
leave, or any other personal leave; or (ii) transfers between the Company,
Affiliates or their successors.
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      (i) "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 shareholders under the Exchange Act, as determined
for purposes of Section 162(m) of the Code.

      (j) "DIRECTOR" means a member of the Board.

      (k) "EMPLOYEE" means any person, including Officers and Directors,
employed by the Company or any Affiliate of the Company. Neither service as a
Director nor payment of a director's fee by the Company shall be sufficient to
constitute "employment" by the Company.

      (l) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended.

      (m) "FAIR MARKET VALUE" means, as of any date, the value of the common
stock of the Company determined as follows and in each case in a manner
consistent with Section 260.140.50 of Title 10 of the California Code of
Regulations:

            (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 Company's common stock) on the last market trading day prior to
the day of determination, as reported in The Wall Street Journal or such other
source as the Board deems reliable.

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

      (n) "GOOD REASON" means the occurrence after a Corporate Transaction (as
defined in Section 12(b)) of any of the following events or conditions unless
consented to by an individual:

            (i) a change in the individual's status, title, position or
responsibilities which represents an adverse change from the individual's
status, title, position or responsibilities as in effect at any time within six
(6) months preceding the date of a Corporate Transaction or at any time
thereafter or (B) the assignment to the individual of any duties or
responsibilities which are inconsistent with the individual's status, title,
position or responsibilities as in effect at any time within six (6) months
preceding the date of a Corporate Transaction or at any time thereafter;

            (ii) reduction in the individual's base salary to a level below that
in effect at any time within six (6) months preceding the date of a Corporate
Transaction or at any time thereafter; or

            (iii) requiring the individual to be based at any place outside a
forty-mile radius from the individual's job location prior to the Corporate
Transaction except
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for reasonably required travel on business which is not materially greater than
such travel requirements prior to the Corporate Transaction.

      (o) "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.

      (p) "LISTING DATE" means the first date upon which any security of the
Company is listed (or approved for listing) upon notice of issuance on any
securities exchange, or designated (or approved for designation) upon notice of
issuance as a national market security on an interdealer quotation system if
such securities exchange or interdealer quotation system has been certified in
accordance with the provisions of Section 25 1 00(o) of the California Corporate
Securities Law of 1968.

      (q) "NON-EMPLOYEE DIRECTOR" means a Director who either (i) is not a
current Employee or Officer of the Company or its parent or subsidiary, does not
receive compensation (directly or indirectly) from the Company or its parent or
subsidiary 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 as to
which disclosure would be required under Item 404(a) of Regulation S-K, and is
not engaged in a business relationship as to which disclosure would be required
under Item 404(b) of Regulation S-K; or (ii) is otherwise considered a
"non-employee director" for purposes of Rule 16b-3.

      (r) "NONSTATUTORY STOCK OPTION" means an Option not intended to qualify as
an Incentive Stock Option.

      (s) "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.

      (t) "OPTION" means a stock option granted pursuant to the Plan.

      (u) "OPTION AGREEMENT" means a written agreement between the Company and
an Optionee evidencing the terms and conditions of an individual Option grant.
Each Option Agreement shall be subject to the terms and conditions of the Plan.

      (v) "OPTIONEE" means a person to whom an Option is granted pursuant to the
Plan or, if applicable, such other person who holds an outstanding Option.

      (w) "OUTSIDE DIRECTOR" means a Director who either (i) is not a current
employee of the Company or an "affiliated corporation" (within the meaning of
the Treasury regulations promulgated under Section 162(m) of the Code), is not a
former employee of the Company or an "affiliated corporation" receiving
compensation for prior services (other than benefits under a tax qualified
pension plan), was not an officer of the
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Company or an "affiliated corporation" at any time, and is not currently
receiving direct or indirect remuneration from the Company or an "affiliated
corporation" for services 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.

      (x) "PLAN" means this 1997 Equity Incentive Plan.

      (y) "RULE 10-3" means Rule 16b-3 of the Exchange Act or any successor to
Rule 16b-3, as in effect with respect to the Company at the time discretion is
being exercised regarding the Plan.

      (z) "SECURITIES ACT" means the Securities Act of 1933, as amended.

      (aa) "STOCK AWARD" means any right granted under the Plan, including any
Option, any stock bonus and any right to purchase restricted stock.

      (bb) "STOCK AWARD AGREEMENT" means a written agreement between the Company
and a holder of a Stock Award evidencing the terms and conditions of an
individual Stock Award grant. Each Stock Award Agreement shall be subject to the
terms and conditions of the Plan.

3. ADMINISTRATION.

      (a) The Plan shall be administered by the Board unless and until the Board
delegates administration to a Committee, as provided in subsection 3(c).

      (b) 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 which of the persons eligible
under the Plan shall be granted Stock Awards; when and how each Stock Award
shall be granted; whether a Stock Award will be an Incentive Stock Option, a
Nonstatutory Stock Option, a stock bonus, a right to purchase restricted stock,
or a combination of the foregoing; 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 stock pursuant to a Stock Award; and the number of
shares 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 amend the Plan or a Stock Award as provided in Section 13.
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            (iv) 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 which are not in conflict with the provisions of the Plan.

      (c) The Board may delegate administration of the Plan to a committee of
the Board composed of not fewer than two (2) members (the "Committee"), all of
the members of which Committee may be, in the discretion of the Board,
Non-Employee Directors and/or Outside Directors. 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, including the power
to delegate to a subcommittee of two (2) or more Outside Directors 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 such a
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 abolish the Committee at any time and revest in the Board the
administration of the Plan. Additionally, prior to the Listing Date, and
notwithstanding anything to the contrary contained herein, the Board may
delegate administration of the Plan to any person or persons and the term
"Committee" shall apply to any person or persons to whom such authority has been
delegated. Notwithstanding anything in this Section 3 to the contrary, the Board
or the Committee may delegate to a committee of one or more members of the Board
the authority to grant Stock Awards to eligible persons who (1) are not then
subject to Section 16 of the Exchange Act and/or (2) are either (i) 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 (ii) not persons with
respect to whom the Company wishes to comply with Section 162(m) of the Code.

4. SHARES SUBJECT TO THE PLAN.

      (a) Subject to the provisions of Section 12 relating to adjustments upon
changes in stock, the stock that may be issued pursuant to Stock Awards shall
not exceed in the aggregate three million four hundred forty three thousand six
hundred thirty (3,443,630) shares of the Company's common stock. If any Stock
Award shall for any reason expire or otherwise terminate, in whole or in part,
without having been exercised in full, the stock not acquired under such Stock
Award shall revert to and again become available for issuance under the Plan.

      (b) The stock subject to the Plan may be unissued shares or reacquired
shares, bought on the market or otherwise.

5. ELIGIBILITY.

      (a) Incentive Stock Options may be granted only to Employees. Stock Awards
other than Incentive Stock Options may be granted only to Employees, Directors
or Consultants.
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      (b) No person shall be eligible for the grant of an Option or an award to
purchase restricted stock if, at the time of grant, such person 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 of any of its Affiliates unless the exercise price of such Option
is at least one hundred ten percent (110%) of the Fair Market Value of such
stock at the date of grant and the Option is not exercisable after the
expiration of five (5) years from the date of grant, or in the case of a
restricted stock purchase award, the purchase price is at least one hundred
percent (100%) of the Fair Market Value of such stock at the date of grant.

      (c) Subject to the provisions of Section 12 relating to adjustments upon
changes in stock, no person shall be eligible to be granted Options covering
more than seven hundred thousand (700,000) shares of the Company's common stock
in any calendar year. This subsection 5(c) shall not apply prior to the Listing
Date and, following the Listing Date, shall not apply until (i) the earliest
of-. (A) the first material, modification of the Plan (including any increase to
the number of shares reserved for issuance under the Plan in accordance with
Section 4); (B) the issuance of all of the shares of common stock reserved for
issuance under the Plan; (C) the expiration of the Plan; or (D) the first
meeting of shareholders at which directors are to be elected that occurs after
the close of the third calendar year following the calendar year in which
occurred the first registration of an equity security under section 12 of the
Exchange Act; or (ii) such other date required by Section 162(m) of the Code and
the rules and regulations promulgated thereunder.

6. OPTION PROVISIONS.

      Each Option shall be in such form and shall contain such terms and
conditions as the Board shall deem appropriate. The provisions of separate
Options need not be identical, but each Option shall include (through
incorporation of provisions hereof by reference in the Option or otherwise) the
substance of each of the following provisions:

      (a) TERM. No Option shall be exercisable after the expiration of ten (10)
years from the date it was granted.

      (b) PRICE. The exercise price of each Incentive Stock Option shall be not
less than one hundred percent (100%) of the Fair Market Value of the stock
subject to the Option on the date the Option is granted; the exercise price of
each Nonstatutory Stock Option shall be not less than eighty-five percent (85%)
of the Fair Market Value of the stock subject to the Option on the date the
Option is granted. Notwithstanding the foregoing, an Option (whether an
Incentive Stock Option or 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 satisfying the provisions of Section 424(a) of the Code.

      (c) CONSIDERATION. The purchase price of stock acquired pursuant to an
Option shall be paid, to the extent permitted by applicable statutes and
regulations, either (i) in
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cash at the time the Option is exercised, or (ii) at the discretion of the Board
or the Committee, at the time of the grant of the Option, (A) by delivery to the
Company of other common stock of the Company, (B) according to a deferred
payment or other arrangement (which may include, without limiting the generality
of the foregoing, the use of other common stock of the Company) with the person
to whom the Option is granted or to whom the Option is transferred pursuant to
subsection 6(d), or (C) in any other form of legal consideration that may be
acceptable to the Board.

      In the case of any deferred payment arrangement, interest shall be
compounded at least annually and shall be charged at the minimum rate of
interest necessary to avoid the treatment as interest, under any applicable
provisions of the Code, of any amounts other than amounts stated to be interest
under the deferred payment arrangement.

      (d) TRANSFERABILITY. 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 person to whom the Option is granted only by such person. The
person to whom the Option is granted may, by delivering written notice to the
Company, in a form satisfactory to the Company, designate a third party who, in
the event of the death of the Optionee, shall thereafter be entitled to exercise
the Option.

      (e) VESTING. The total number of shares of stock subject to an Option may,
but need not, be allotted in periodic installments (which may, but need not, be
equal). The Option Agreement may provide that from time to time during each of
such installment periods, the Option may become exercisable ("vest") with
respect to some or all of the shares allotted to that period, and may be
exercised with respect to some or all of the shares allotted to such period
and/or any prior period as to which the Option became vested but was not fully
exercised. The Option may be subject to such other terms and conditions on the
time or times when it may 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 but in each case will provide for vesting of at
least twenty percent (20%) per year of the total number of shares subject to the
Option; provided, however, that an Option granted to an officer, director or
consultant (within the meaning of Section 260.140.41 of Title 10 of the
California Code of Regulations) may become fully exercisable, subject to
reasonable conditions such as continued employment, at any time or during any
period established by the Company or of any of its Affiliates. The provisions of
this subsection 6(e) are subject to any Option provisions governing the minimum
number of shares as to which an Option may be exercised.

      (f) TERMINATION OF EMPLOYMENT OR RELATIONSHIP AS A DIRECTOR OR CONSULTANT.
In the event an Optionee's Continuous Status as an Employee, Director or
Consultant terminates (other than upon the Optionee's death or disability), the
Optionee may exercise his or her Option (to the extent that the Optionee was
entitled to exercise it 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 Optionee's Continuous Status as an Employee, Director or
Consultant (or such longer or shorter period, which shall not be less than
thirty (30) days, unless such termination is for cause, specified in the Option
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Agreement), or (ii) the expiration of the term of the Option as set forth in the
Option Agreement. If, at the date of termination, the Optionee is not entitled
to exercise his or her entire Option, the shares covered by the unexercisable
portion of the Option shall revert to and again become available for issuance
under the Plan. If, after termination, the Optionee does not exercise his or her
Option within the time specified in the Option Agreement, the Option shall
terminate, and the shares covered by such Option shall revert to and again
become available for issuance under the Plan.

      An Optionee's Option Agreement may also provide that if the exercise of
the Option following the termination of the Optionee's Continuous Status as an
Employee, Director, or Consultant (other than upon the Optionee's death or
disability) would result in liability under Section 16(b) of the Exchange Act,
then the Option shall terminate on the earlier of (i) the expiration of the term
of the Option set forth in the Option Agreement, or (ii) the tenth (10th) day
after the last date on which such exercise would result in such liability under
Section 16(b) of the Exchange Act. Finally, an Optionee's Option Agreement may
also provide that if the exercise of the Option following the termination of the
Optionee's Continuous Status as an Employee, Director or Consultant (other than
upon the Optionee's death or disability) would be prohibited at any time solely
because the issuance of shares would violate the registration requirements under
the Securities Act, then the Option shall terminate on the earlier of (1) the
expiration of the ten-n of the Option set forth in the first paragraph of this
subsection 6(t), or (ii) the expiration of a period of three (3) months after
the termination of the Optionee's Continuous Status as an Employee, Director or
Consultant during which the exercise of the Option would not be in violation of
such registration requirements.

      (g) DISABILITY OF OPTIONEE. In the event an Optionee's Continuous Status
as an Employee, Director or Consultant terminates as a result of the Optionee's
disability, the Optionee may exercise his or her Option (to the extent that the
Optionee was entitled to exercise it as of the date of termination), but only
within such period of time ending on the earlier of (i) the date twelve (12)
months following such termination (or such longer or shorter period, which in no
event shall be less than six (6) months, specified in the Option Agreement), or
(ii) the expiration of the term of the Option as set forth in the Option
Agreement. If, at the date of termination, the Optionee is not entitled to
exercise his or her entire Option, the shares covered by the unexercisable
portion of the Option shall revert to and again become available for issuance
under the Plan. If, after termination, the Optionee does not exercise his or her
Option within the time specified herein, the Option shall terminate, and the
shares covered by such Option shall revert to and again become available for
issuance under the Plan.

      (h) DEATH OF OPTIONEE. In the event of the death of an Optionee during, or
within a period specified in the Option Agreement after the termination of, the
Optionee's Continuous Status as an Employee, Director or Consultant, the Option
may be exercised (to the extent the Optionee was entitled to exercise the Option
as of the date of death) by the Optionee'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 Optionee's death pursuant to subsection 6(d),
but only within the period ending on the
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earlier of (i) the date eighteen (18) months following the date of death (or
such longer or shorter period, which in no event shall be less than six (6)
months, specified in the Option Agreement), or (ii) the expiration of the term
of such Option as set forth in the Option Agreement. If, at the time of death,
the Optionee was not entitled to exercise his or her entire Option, the shares
covered by the unexercisable portion of the Option shall revert to and again
become available for issuance under the Plan. If, after death, the Option is not
exercised within the time specified herein, the Option shall terminate, and the
shares covered by such Option shall revert to and again become available for
issuance under the Plan.

      (i) EARLY EXERCISE. The Option may, but need not, include a provision
whereby the Optionee may elect at any time while an Employee, Director or
Consultant to exercise the Option as to any part or all of the shares subject to
the Option prior to the full vesting of the Option. Any unvested shares so
purchased shall be subject to a repurchase right in favor of the Company, with
the repurchase price to be equal to the original purchase price of the stock, or
to any other restriction the Board determines to be appropriate; provided,
however, that (i) the right to repurchase at the original purchase price shall
lapse at a minimum rate of twenty percent (20%) per year over five (5) years
from the date the Option was granted, and (ii) such right shall be exercisable
only within (A) the ninety (90) day period following the termination of
employment or the relationship as a Director or Consultant, or (B) such longer
period as may be agreed to by the Company and the Optionee (for example, for
purposes of satisfying the requirements of Section 1202(c)(3) of the Code
(regarding "qualified small business stock")), and (iii) such right shall be
exercisable only for cash or cancellation of purchase money indebtedness for the
shares. Should the right of repurchase be assigned by the Company, the assignee
shall pay the Company cash equal to the difference between the original purchase
price and the stock's Fair Market Value if the original purchase price is less
than the stock's Fair Market Value. Notwithstanding the foregoing, shares
received on exercise of an Option by an officer, director or consultant (within
the meaning of Section 260.140.41 of Title 10 of the California Code of
Regulations) may be subject to additional or greater restrictions.

      (j) RIGHT OF REPURCHASE. The Option may, but need not, include a provision
whereby the Company may elect, prior to the Listing Date, or prior to the
occurrence of an event constituting a "Change in Control" as defined in
subsection 12(b) of the Plan, to repurchase all or any part of the vested shares
exercised pursuant to the Option; provided, however, that (i) such repurchase
right shall be exercisable only within (A) the ninety (90) day period following
the termination of employment or the relationship as a Director or Consultant
(or in the case of post-termination exercise of the Option the ninety (90) day
period following such post-termination exercise), or (B) such longer period as
may be agreed to by the Company and the Optionee (for example, for purposes of
satisfying the requirements of Section 1202(c)(3) of the Code (regarding
"qualified small business stock")), (ii) such repurchase right shall be
exercisable for less than all of the vested shares only with the Optionee's
consent, and (iii) such right shall be exercisable only for cash or cancellation
of purchase money indebtedness for the shares at a repurchase price equal to the
greater of (A) the stock's Fair Market Value at the time of such termination or
(B) the original purchase price paid for such shares by the Optionee.
Notwithstanding
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the foregoing, shares received on exercise of an Option by an officer, director
or consultant (within the meaning of Section 260.140.41 of Title 10 of the
California Code of Regulations) may be subject to additional or greater
restrictions specified in the Option Agreement.

      (k) RIGHT OF FIRST REFUSAL. The Option may, but need not, include a
provision whereby the Company may elect, prior to the Listing Date, to exercise
a right of first refusal following receipt of notice from the Optionee of the
intent to transfer all or any part of the shares exercised pursuant to the
Option.

      (l) RE-LOAD OPTIONS. Without in any way limiting the authority of the
Board or Committee to make or not to make grants of Options hereunder, the Board
or Committee shall have the authority (but not an obligation) to include as part
of any Option Agreement a provision entitling the Optionee to a further Option
(a "Re-Load Option") in the event the Optionee exercises the Option evidenced by
the Option agreement, in whole or in part, by surrendering other shares of
Common Stock in accordance with this Plan and the terms and conditions of the
Option Agreement. Any such Re-Load Option (i) shall be for a number of shares
equal to the number of shares surrendered as part or all of the exercise price
of such Option; (ii) shall have an expiration date which is the same as the
expiration date of the Option the exercise of which gave rise to such Re-Load
Option; and (iii) shall have an exercise price which is equal to one hundred
percent (100%) of the Fair Market Value of the Common Stock subject to the
Re-Load Option on the date of exercise of the original Option. Notwithstanding
the foregoing, a Re-Load Option which is granted to a 10% shareholder (as
described in subsection 5(b)), shall have an exercise price which is equal to
one hundred ten percent (110%) of the Fair Market Value of the stock subject to
the Re-Load Option on the date of exercise of the original Option and shall have
a term which is no longer than five (5) years.

      Any such Re-Load Option may be an Incentive Stock Option or a Nonstatutory
Stock Option, as the Board or Committee may designate at the time of the grant
of the original Option; provided, however, that the designation of any Re-Load
Option as an Incentive Stock Option shall be subject to the one hundred thousand
dollar ($100,000) annual limitation on exercisability of Incentive Stock Options
described in subsection 12(e) of the Plan and in Section 422(d) of the Code.
There shall be no Re-Load Options on a Re-Load Option. Any such Re-Load Option
shall be subject to the availability of sufficient shares under subsection 4(a)
and the limits on the grants of Options under subsection 5(c) and shall be
subject to such other terms and conditions as the Board or Committee may
determine which are not inconsistent with the express provisions of the Plan
regarding the terms of Options.

7. TERMS OF STOCK BONUSES AND PURCHASES OF RESTRICTED STOCK.

      Each stock bonus or restricted stock purchase agreement shall be in such
form and shall contain such terms and conditions as the Board or the Committee
shall deem appropriate. The terms and conditions of stock bonus or restricted
stock purchase agreements may change from time to time, and the terms and
conditions of separate
<PAGE>
agreements need not be identical, but each stock bonus or restricted stock
purchase agreement shall include (through incorporation of provisions hereof by
reference in the agreement or otherwise) the substance of each of the following
provisions as appropriate:

      (a) PURCHASE PRICE. The purchase price under each restricted stock
purchase agreement shall be such amount as the Board or Committee shall
determine and designate in such Stock Award Agreement, but in no event shall the
purchase price be less than eighty-five percent (85%) of the stock's Fair Market
Value on the date such award is made. Notwithstanding the foregoing, the Board
or the Committee may determine that eligible participants in the Plan may be
awarded stock. pursuant to a stock bonus agreement in consideration for past
services actually rendered to the Company or for its benefit.

      (b) TRANSFERABILITY. Rights under a stock bonus or restricted stock
purchase agreement shall be transferable by the grantee only upon such terms and
conditions as are set forth in the applicable Stock Award Agreement, as the
Board or the Committee shall determine in its discretion, so long as stock
awarded under such Stock Award Agreement remains subject to the terms of the
agreement.

      (c) CONSIDERATION. The purchase price of stock acquired pursuant to a
stock purchase agreement shall be paid either: (i) in cash at the time of
purchase; (ii) at the discretion of the Board or the Committee, according to a
deferred payment or other arrangement with the person to whom the stock is sold;
or (iii) in any other form of legal consideration that may be acceptable to the
Board or the Committee in its discretion. Notwithstanding the foregoing, the
Board or the Committee to which administration of the Plan has been delegated
may award stock pursuant to a stock bonus agreement in consideration for past
services actually rendered to the Company or for its benefit.

      (d) VESTING. Shares of stock sold or awarded under the Plan may, but need
not, be subject to a repurchase option in favor of the Company in accordance
with a vesting schedule to be determined by the Board or the Committee. The
applicable agreement shall provide (i) that the right to repurchase at the
original purchase price (or, in the case of a stock bonus, Fair Market Value on
the grant date) shall lapse at a minimum rate of twenty percent (20%) per year
over five (5) years from the date the Stock Award was granted (except that a
Stock Award granted to an officer, director or consultant (within the meaning of
Section 260.140.41 of Title 10 of the California Code of Regulations) may become
fully vested, subject to reasonable conditions such as continued employment, at
any time or during any period established by the Company or of any of its
Affiliates), and (ii) such right shall be exercisable only (A) within the ninety
(90) day period following the termination of employment or the relationship as a
Director or Consultant, or (B) such longer period as may be agreed to by the
Company and the holder of the Stock Award (for example, for purposes of
satisfying the requirements of Section 1202(c)(3) of the Code (regarding
"qualified small business stock")), and (iii) such right shall be exercisable
only for cash or cancellation of purchase money indebtedness for the shares.
Should the right of repurchase be assigned by the Company, the assignee shall
pay the Company cash equal to the difference between the original purchase price
and the stock's
<PAGE>
Fair Market Value if the original purchase price is less than the stock's Fair
Market Value.

      (e) TERMINATION OF EMPLOYMENT OR RELATIONSHIP AS A DIRECTOR OR CONSULTANT.
In the event a Participant's Continuous Status as an Employee, Director or
Consultant terminates, the Company may repurchase or otherwise reacquire,
subject to the limitations described in subsection 7(d), any or all of the
shares of stock held by that person which have not vested as of the date of
termination under the terms of the stock bonus or restricted stock purchase
agreement between the Company and such person.

      (f) RIGHT OF REPURCHASE. The stock bonus or restricted stock purchase
agreement may, but need not, include a provision whereby the Company may elect,
prior to the Listing Date, or prior to the occurrence of an event constituting a
"Change in Control" as defined in subsection 12(b) of the Plan, to repurchase
all or any part of the vested shares received pursuant to the stock bonus or
restricted stock purchase agreement; provided, however, that (i) such repurchase
right shall be exercisable only within (A) the ninety (90) day period following
the termination of employment or the relationship as a Director or Consultant,
or (B) such longer period as may be agreed to by the Company and the grantee
(for example, for purposes of satisfying the requirements of Section 1202(c)(3)
of the Code (regarding "qualified small business stock")), (ii) such repurchase
right shall be exercisable for less than all of the vested shares only with the
grantee's consent, and (iii) such right shall be exercisable only for cash or
cancellation of purchase money indebtedness for the shares at a repurchase price
equal to the greater of (A) the stock's Fair Market Value at the time of such
termination or (B) the original purchase price paid for such shares by the
grantee (or in the case of a stock bonus, Fair Market Value on the grant date).

8. CANCELLATION AND RE-GRANT OF OPTIONS.

      (a) The Board or the Committee shall have the authority to effect, at any
time and from time to time, (i) the repricing of any outstanding Options under
the Plan and/or (ii) with the consent of the affected holders of Options, the
cancellation of any outstanding Options under the Plan and the grant in
substitution therefor of new Options under the Plan covering the same or
different numbers of shares of stock, but having an exercise price per share not
less than eighty-five percent (85%) of the Fair Market Value (one hundred
percent (100%) of the Fair Market Value in the case of an Incentive Stock
Option) or, in the case of a 10% shareholder (as described in subsection 5(b)),
not less than one hundred ten percent (110%) of the Fair Market Value) per share
of stock on the new grant date. Notwithstanding the foregoing, the Board or the
Committee may grant an Option with an exercise price lower than that set forth
above if such Option is granted as part of a transaction to which section 424(a)
of the Code applies.

      (b) Shares subject to an Option canceled under this Section 8 shall
continue to be counted against the maximum award of Options permitted to be
granted pursuant to subsection 5(c) of the Plan. The repricing of an Option
under this Section 8, resulting in a reduction of the exercise price, shall be
deemed to be a cancellation of the original Option
<PAGE>
and the grant of a substitute Option; in the event of such repricing, both the
original and the substituted Options shall be counted against the maximum awards
of Options permitted to be granted pursuant to subsection 5(c) of the Plan. The
provisions of this subsection 8(b) shall be applicable only to the extent
required by Section 162(m) of the Code.

9. COVENANTS OF THE COMPANY.

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

      (b) The Company shall seek to obtain from each regulatory commission or
agency having jurisdiction over the Plan such authority as may be required to
issue and sell shares of stock upon exercise of the Stock Award; provided,
however, that this undertaking shall not require the Company to register under
the Securities Act either the Plan, any Stock Award or any stock issued or
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 which counsel for the Company deems necessary for the lawful issuance
and sale of stock under the Plan, the Company shall be relieved from any
liability for failure to issue and sell stock upon exercise of such Stock Awards
unless and until such authority is obtained.

10. USE OF PROCEEDS FROM STOCK.

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

11. MISCELLANEOUS.

      (a) Subject to any applicable provisions of the California Corporate
Securities Law of 1968 and related regulations relied upon as a condition of
issuing securities pursuant to the Plan, 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 pursuant to subsection
6(e) or 7(d), 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) Neither an Employee, Director or Consultant nor any person to whom a
Stock Award is transferred under subsection 6(d) or 7(b) shall be deemed to be
the holder of, or to have any of the rights of a holder with respect to, any
shares subject to such Stock Award unless and until such person has satisfied
all requirements for exercise of the Stock Award pursuant to its terms.

      (c) Throughout the term of any Stock Award, the Company shall deliver to
the holder of such Stock Award, not later than one hundred twenty (120) days
after the close of each of the Company's fiscal years during the term of such
Stock Award, a balance sheet and an income statement. This subsection shall not
apply (i) after the Listing Date,
<PAGE>
or (11) when issuance is limited to key employees whose duties in connection
with the Company assure them access to equivalent information. The Company shall
comply with other information delivery requirements as applicable, including,
but not limited to, Rule 428 of the Securities Act.

      (d) Nothing in the Plan or any instrument executed or Stock Award granted
pursuant thereto shall confer upon any Employee, Director, Consultant or other
holder of Stock Awards any right to continue in the employ of the Company or any
Affiliate (or to continue acting as a Director or Consultant) or shall affect
the right of the Company or any Affiliate to terminate the employment of any
Employee with or without cause the right of the Company's Board of Directors
and/or the Company's shareholders to remove any Director as provided in the
Company's By-Laws and the provisions of the California Corporations Code, or the
right to terminate the relationship of any Consultant subject to the terms of
such Consultant's agreement with the Company or Affiliate.

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

      (f) The Company may require any person to whom a Stock Award is granted,
or any person to whom a Stock Award is transferred pursuant to subsection 6(d)
or 7(b), as a condition of exercising or acquiring stock under any Stock Award,
(1) to give written assurances satisfactory to the Company as to such person'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 such
person is capable of evaluating, alone or together with the purchaser
representative, the merits and risks of exercising the Stock Award; and (2) to
give written assurances satisfactory to the Company stating that such person is
acquiring the stock subject to the Stock Award for such person's own account and
not with any present intention of selling or otherwise distributing the 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 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 stock.

      (g) To the extent provided by the terms of a Stock Award Agreement, the
person to whom a Stock Award is granted may satisfy any federal, state or local
tax withholding obligation relating to the exercise or acquisition of stock
under a Stock Award by any of
<PAGE>
the following means or by a combination of such means: (1) tendering a cash
payment; (2) authorizing the Company to withhold shares from the shares of the
common stock otherwise issuable to the participant as a result of the exercise
or acquisition of stock under the Stock Award; or (3) delivering to the Company
owned and unencumbered shares of the common stock of the Company.

12. ADJUSTMENTS UPON CHANGES IN STOCK.

      (a) If any change is made in the stock subject to the Plan, or subject to
any Stock Award (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), the Plan will be appropriately
adjusted in the type(s) and maximum number of securities subject to the Plan
pursuant to subsection 4(a) and the maximum number of securities subject to
award to any person during any calendar year pursuant to subsection 5(c), and
the outstanding Stock Awards will be appropriately adjusted in the type(s) and
number of securities and price per share of stock subject to such outstanding
Stock Awards. Such adjustments shall be made by the Board or the Committee, the
determination of which shall be final, binding and conclusive. (The conversion
of any convertible securities of the Company shall not be treated as a
"transaction not involving the receipt of consideration by the Company".)

      (b) In the event of: (1) a dissolution, liquidation or sale of all or
substantially all of the assets of the Company; (2) a merger or consolidation in
which the Company is not the surviving corporation; or (3) a reverse merger in
which the Company is the surviving corporation but the shares of the Company's
common stock outstanding immediately preceding the merger are converted by
virtue of the merger into other property, whether in the form of securities,
cash or otherwise (each event, a "Corporate Transaction"); then: (i) any
surviving corporation or acquiring corporation shall assume any Stock Awards
outstanding under the Plan or shall substitute similar stock awards (including
an award to acquire the same consideration paid to the stockholders in the
transaction described in this subsection 13(b)) for those outstanding under the
Plan, or (ii) in the event any surviving corporation or acquiring corporation
refuses to assume such Stock Awards or to substitute similar stock awards for
those outstanding under the Plan, (A) with respect to Stock Awards held by
persons then performing services as Employees, Directors or Consultants and
subject to any applicable provisions of the California Corporate Securities Law
of 1968 and related regulations relied upon as a condition of issuing securities
pursuant to the Plan, the vesting of such Stock Awards (and, if applicable, the
time during which such Stock Awards may be exercised) shall be accelerated prior
to such event and the Stock Awards terminated if not exercised (if applicable)
after such acceleration and at or prior to such event, and (B) with respect to
any other Stock Awards outstanding under the Plan, such Stock Awards shall be
terminated if not exercised (if applicable) prior to such event. To the extent
that any surviving corporation or successor acquiring corporation assumes any
Stock Awards outstanding under the Plan or substitutes similar stock awards for
those outstanding under the Plan, then such Stock
<PAGE>
Award (if assumed) or replacement stock award (if replaced) automatically shall
become fully vested and exercisable and be released from any restrictions on
transfer (other than transfer restrictions applicable to Options) and repurchase
or forfeiture rights, immediately upon termination of such individual's
Continuous Status as an Employee, Director or Consultant (substituting the
successor employer corporation for "Company" or "Affiliate" for the definition
of "Continuous Status as an Employee, Director or Consultant") if such
Continuous Status as an Employee, Director or Consultant is terminated by the
successor company without Cause or voluntarily by the Optionee with Good Reason
within two (2) years of the Corporate Transaction.

13. AMENDMENT OF THE PLAN AND STOCK AWARDS.

      (a) The Board at any time, and from time to time, may amend the Plan.
However, except as provided in Section 12 relating to adjustments upon changes
in stock, no amendment shall be effective unless approved by the shareholders of
the Company within twelve (12) months before or after the adoption of the
amendment, where the amendment will:

            (1) Increase the number of shares reserved for Stock Awards under
the Plan;

            (2) Modify the requirements as to eligibility for participation in
the Plan (to the extent such modification requires shareholder approval in order
for the Plan to satisfy the requirements of Section 422 of the Code); or

            (3) Modify the Plan in any other way if such modification requires
shareholder approval in order for the Plan to satisfy the requirements of
Section 422 of the Code or to comply with the requirements of Rule 16b-3.

      (b) The Board may in its sole discretion submit any other amendment to the
Plan for shareholder 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 promulgated thereunder regarding the exclusion of performance-based
compensation from the limit on corporate deductibility of compensation paid to
certain executive officers.

      (c) 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) Rights and obligations under any Stock Award granted before amendment
of the Plan shall not be impaired by any amendment of the Plan unless (i) the
Company requests the consent of the person to whom the Stock Award was granted
and (ii) such person consents in writing.
<PAGE>
      (e) The Board at any time, and from time to time, may amend the terms of
any one or more Stock Award; provided, however, that the rights and obligations
under any Stock Award shall not be impaired by any such amendment unless (i) the
Company requests the consent of the person to whom the Stock Award was granted
and (ii) such person consents in writing.

14. TERMINATION OR SUSPENSION OF THE PLAN.

      (a) The Board may suspend or terminate the Plan at any time. Unless sooner
terminated, the Plan shall terminate ten (10) years from the date the Plan is
adopted by the Board or approved by the shareholders 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) Rights and obligations under any Stock Award granted while the Plan is
in effect shall not be impaired by suspension or termination of the Plan, except
with the written consent of the person to whom the Stock Award was granted.

15. EFFECTIVE DATE OF PLAN.

      The Plan shall become effective as determined by the Board, but no Options
granted under the Plan shall be exercised and no shares of the Company's common
stock subject to other Stock Awards shall be sold, disposed, or otherwise
transferred unless and until the Plan has been approved by the shareholders of
the Company, which approval shall be within twelve (12) months before or after
the date the Plan is adopted by the Board.