IDEAYA Biosciences
Develops biomarker-selected cancer drugs across small molecules and antibody-drug conjugates.
$40.11
After-hours close−0.02 (−0.05%)
At close$40.13(−3.93%)
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Breakdown13F · Form 4
Institutions 111.92%Insiders 0.09%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 95.08M · Float 87.08M · 91.6% free float
Institutions13F, as of Jun 30, 2026
292 holders · 106.41M shares · 67 new positions · 159 increased · 90 reduced · 36 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 14.11M | 14.84% | +937.3K | Aug 13, 2026 |
| BlackRock, Inc. | 8.89M | 9.35% | +451.1K | Aug 7, 2026 |
| Jupiter Topco LLC | 8.58M | 9.02% | +8.58Mnew | Aug 14, 2026 |
| Capital Research Global Investors | 5.34M | 5.62% | +181.2K | Aug 12, 2026 |
| Baker Bros. Advisors LP | 5.01M | 5.27% | +1.06M | Aug 14, 2026 |
| State Street Corp | 4.55M | 4.78% | +767.7K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 4.13M | 4.35% | +400.2K | Aug 13, 2026 |
| Logos Global Management LP | 3.00M | 3.16% | −450.0K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Janus Henderson Group PLC | 8.30% | 7.27M | 13G | May 15, 2026 ↗ |
| BlackRock, Inc. | 8.10% | 7.13M | 13G | Apr 17, 2025 ↗ |
| Capital Research Global Investors | 6.00% | 5.28M | 13G | Feb 12, 2026 ↗ |
| Baker Bros. Advisors LP | 5.20% | 5.01M | 13G | Aug 14, 2026 ↗ |
| Vanguard Capital Management | 5.08% | 4.83M | 13G | Jul 31, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Jeffrey Stein | director | 54.3K | 0.06% | Mar 2, 2026 |
| Briseno Andres Ruiz | officer: Chief Accounting Officer | 26.5K | 0.03% | Jul 9, 2026 |
| Douglas B. Snyder | officer: SVP, General Counsel | 2.1K | 0.00% | Feb 2, 2026 |
4 ten-percent owners hold 2.36M shares by Form 4, outside the officers-and-directors figure above · 8 people have not refiled in the last 18 months (2.68M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jul 7, 2026 | Briseno Andres Ruizofficer: Chief Accounting Officer | Sale | 9,550 | $40.01 | 26,466 |
| Mar 2, 2026 | Jeffrey Steindirector | Purchase | 50,000 | $32.96 | 54,281 |
CongressHouse and Senate disclosures
Not reported.