SEC Form 4 · accession 0001610717-26-000264
IDEAYA Biosciences, Inc. · IDYA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Jeffrey Stein
Director
Period of report
Jun 16, 2026
Accepted (ET)
Jun 18, 2026 · 4:33 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001676725
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 | $30.57 | Jun 16, 2026 | A | 20,000 | A | — | Jun 16, 2036 | Common Stock | 20,000 | 20,000 | D |
Explanation of responses
- F1100% of the shares subject to the option shall vest in full on the earlier of (i) the first anniversary of the date of grant and (ii) immediately prior to the Annual Meeting following the date of grant, subject to the Reporting Person continuing in service on the Board through such vesting date.