IDEAYA Biosciences, Inc. 4

Director Jeffrey Stein received an option award for 20,000 shares of IDEAYA Biosciences, Inc. common stock at an exercise price of $30.57 per share.

On June 16, 2026, Jeffrey Stein received a grant of stock options from IDEAYA Biosciences, Inc. covering 20,000 shares of common stock at an exercise price of $30.57 per share, with all shares scheduled to vest in full on the earlier of the first anniversary of the grant date or immediately prior to the next annual shareholder meeting, contingent on his continued board service. These options, which expire in 2036, represent a routine equity compensation award for a director rather than an open‑market purchase or sale, and increase his derivative exposure to IDEAYA’s stock by the option notional value of approximately $611,400. Following this grant, his direct beneficial ownership includes 20,000 shares of common stock tied to this option award, although the filing does not provide sufficient price data to estimate the total market value of his overall equity holdings.

Filing Facts

CIK

1676725

Ticker

IDYA

Form

4

Source Type

sec

Accession

0001610717-26-000264

Alert Tier

5