X0609 4/A 2026-09-15 2026-09-15 0001422142 Whitehawk Therapeutics, Inc. WHWK 0001821353 Dornan David false C/O WHITEHAWK THERAPEUTICS, INC. 2 HEADQUARTERS PLAZA, EAST BUILDING, 11T MORRISTOWN NJ 07960 false true false false Chief Scientific Officer 0 Stock Option (right to buy) 4.09 2026-09-15 4 A 0 85887 0 A 2036-09-15 Common Stock 85887 85887 D Restricted Stock Units 2026-09-15 4 A 0 85887 0 A Common Stock 85887 85887 D Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through each applicable date, twenty five percent (25%) of the shares subject to the option shall vest on the one-year anniversary of the Vesting Commencement Date and 1/48th of the total shares subject to the option shall vest every month thereafter such that all shares subject to the option shall be fully vested on the four-year anniversary of the Vesting Commencement Date. "Vesting Commencement Date" shall mean September 15, 2026. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. Common Stock. The original Form 4 filed by the Reporting Person erroneously reflected an incorrect vesting schedule. Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through the applicable date, one hundred percent (100%) of the shares subject to the award shall vest on the one-year anniversary of the Vesting Commencement Date. "Vesting Commencement Date" shall mean September 15, 2026. /s/ Stephen Rodin, as Attorney-in-Fact 2026-09-18