SEC Form 4 · accession 0001909734-26-000009
Whitehawk Therapeutics, Inc. · WHWK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
A later amendment supersedes this filing — read the amendment. The figures below are kept as originally reported (version chain, not an overwrite).
Reporting owner
Margaret Dugan
Officer — Chief Medical Officer
Period of report
Sep 15, 2026
Accepted (ET)
Sep 15, 2026 · 7:06 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001422142
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F1 | $4.09 | Sep 15, 2026 | A | 81,250 | A | — | Sep 15, 2036 | Common Stock | 81,250 | 81,250 | D |
| Restricted Stock UnitsF2,F3 | — | Sep 15, 2026 | A | 81,250 | A | — | — | Common Stock | 81,250 | 81,250 | D |
Explanation of responses
- F1Subject 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.
- F2Each restricted stock unit ("RSU") represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. Common Stock.
- F3Subject 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 award shall vest on the one-year anniversary of the Vesting Commencement Date, and twenty five percent (25%) of the shares subject to the award shall vest on each of the next three Vesting Commencement Date anniversaries thereafter. "Vesting Commencement Date" shall mean September 15, 2026.