ONYX PHARMACEUTICALS, INC.
2005 EQUITY INCENTIVE PLAN
(INCENTIVE STOCK OPTION OR NONSTATUTORY STOCK OPTION)
Pursuant to your Option Grant Notice (“ Grant Notice ”) and this Option Agreement, Onyx
Pharmaceuticals, 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. EXERCISE RESTRICTION FOR NON-EXEMPT EMPLOYEES. In the event that you are an Employee
eligible for overtime compensation under the Fair Labor Standards Act of 1938, as amended ( i.e. , a “ Non-
Exempt Employee ”), you may not exercise your option until you have completed at least six (6) months of
Continuous Service measured from the Date of Grant specified in your Grant Notice, notwithstanding any other
provision of your option.
4. 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