IDEAYA Biosciences, Inc. (IDYA) Insider Trading -- Recent Executive & Director Transactions
4 insiders reported 10 Form 4 transactions for IDEAYA Biosciences, Inc. (IDYA) over the past 18 months (most recent 2026-10-08). Recent activity: Hata Yujiro S (President and CEO) Buy 26,338 shares, Hata Yujiro S (President and CEO) Sell 25,538 shares, Hata Yujiro S (President and CEO) Sell 800 shares, Ruiz Briseno Andres (Chief Accounting Officer) Buy 9,550 shares, Ruiz Briseno Andres (Chief Accounting Officer) Sell 9,550 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-08 | Hata Yujiro S | President and CEO | Buy | 26,338 | $113,517 |
| 2026-10-08 | Hata Yujiro S | President and CEO | Sell | 25,538 | $954,787 |
| 2026-10-08 | Hata Yujiro S | President and CEO | Sell | 800 | $30,610 |
| 2026-07-09 | Ruiz Briseno Andres | Chief Accounting Officer | Buy | 9,550 | $122,813 |
| 2026-07-09 | Ruiz Briseno Andres | Chief Accounting Officer | Sell | 9,550 | $382,131 |
| 2026-03-02 | Stein Jeffrey | Director | Buy | 50,000 | $1.6M |
| 2026-02-02 | Snyder Douglas B. | SVP, General Counsel | Buy | 1,039 | $17,569 |
| 2026-02-02 | Snyder Douglas B. | SVP, General Counsel | Buy | 1,041 | $17,603 |
| 2026-02-02 | Ruiz Briseno Andres | Title: SVP, Head of Finance and Investor Relations | Buy | 682 | $15,863 |
| 2026-02-02 | Ruiz Briseno Andres | Title: SVP, Head of Finance and Investor Relations | Buy | 1,253 | $21,188 |
Source: SEC Form 4 filings · as of 2026-10-08