🕵️ Ideaya Biosciences, Inc. ($IDYA)
SEC insider & ownership activity, last 12 months · CIK 1676725 · every row links its SEC filing
Over the last 12 months insiders sold $382K against $1.6M of open-market buying. Stein Jeffrey bought $1.6M in discretionary trades (Mar). Janus Henderson Group PLC added 7.3% → 8.3%; Blackrock, Inc. trimmed 9.7% → 8.1%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $1.6M (1 lots) · 1 seller, $382K (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Stein Jeffrey | 1 | $1.6M | 0 | – | Mar 2, 2026 |
| Ruiz Briseno Andres | 0 | – | 1 | $382K | Jul 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Janus Henderson Group PLC | 8.3% | 13G | May 15, 2026 | filing ↗ | |
| Blackrock, Inc. | 8.1% | 13G | Apr 17, 2025 | filing ↗ | |
| Capital Research Global Investors | 6.0% | 13G | Feb 12, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Andres Ruiz Briseno | $382K | Jul 7, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 16, 2026 | filing ↗ |
| Other events (8.01) | Jun 16, 2026 | filing ↗ |
| Other events (8.01) | Jun 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 8, 2026 | filing ↗ |
| Other events (8.01) | Jun 3, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 1, 2026 | filing ↗ |
| Other events (8.01) | Jun 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 1, 2026 | filing ↗ |
| Other events (8.01) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Other events (8.01) | Apr 13, 2026 | filing ↗ |
| Other events (8.01) | Apr 8, 2026 | filing ↗ |
| Earnings (2.02) | Feb 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 17, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Jan 11, 2026 | filing ↗ |
| Agreement terminated (1.02) | Dec 9, 2025 | filing ↗ |
| Other events (8.01) | Dec 4, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Other events (8.01) | Oct 17, 2025 | filing ↗ |
| Other events (8.01) | Sep 7, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 29, 2025 | filing ↗ |
| Earnings (2.02) | Aug 5, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 5, 2025 | filing ↗ |