IDYA in the 13F filings
Ideaya Biosciences Inc · CUSIP 45166A102
- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 3 Aug 2026
- Managers listing it
- 23
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 2 listed it in both
- Shares listed
- 34,798,644
- combined, among listed positions
- Reported value
- $1.3bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 16 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +5,256,926.
Managers listing IDYA in Q2 2026
23 of 23 holders
Largest increases and reductions, by shares
Increases
- AllianceBernstein LPexisting position · 1,627,521 shares now+1,526,735
- Janus Henderson Group Ltdexisting position · 8,579,881 shares now+1,314,628
- Fidelity (FMR LLC)existing position · 14,109,431 shares now+937,328
- Arrowstreet Capital LPnew position · 891,608 shares now+891,608
- T. Rowe Price Associates Incexisting position · 2,207,451 shares now+891,582
Reductions
- Citadel Advisors LLCexisting position · 300,438 shares now-378,962
- Millennium Management LLCexisting position · 10,500 shares now-218,480
- Two Sigma Investments LPexisting position · 41,205 shares now-77,911
- Squarepoint Ops LLCexisting position · 25,218 shares now-74,060
- Susquehanna International Group LLPexisting position · 30,148 shares now-16,561
New positions and exits
New (5)
Exited (4)
- Point72 Asset Management LPwas $11m
- Neuberger Berman Group LLCwas $4.0m
- Jane Street Group LLCwas $2.9m
- Hudson Bay Capital Management LPwas $100k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q2 2020 | 1 | $14m | n.a. | n.a. |
| Q3 2020 | 1 | $15m | n.a. | n.a. |
| Q4 2020 | 1 | $16m | n.a. | n.a. |
| Q1 2021 | 3 | $31m | n.a. | n.a. |
| Q2 2021 | 3 | $26m | n.a. | n.a. |
| Q3 2021 | 3 | $37m | n.a. | n.a. |
| Q4 2021 | 3 | $50m | n.a. | n.a. |
| Q1 2022 | 1 | $21m | n.a. | n.a. |
| Q2 2022 | 1 | $21m | n.a. | n.a. |
| Q2 2023 | 3 | $60m | n.a. | n.a. |
| Q3 2023 | 4 | $118m | n.a. | n.a. |
| Q4 2023 | 5 | $275m | 5 | 0 |
| Q1 2024 | 10 | $1.0bn | 8 | 1 |
| Q2 2024 | 8 | $479m | 6 | 3 |
| Q3 2024 | 6 | $309m | 5 | 1 |
| Q4 2024 | 5 | $245m | 3 | 2 |
| Q1 2025 | 3 | $159m | 2 | 1 |
| Q2 2025 | 3 | $374m | 2 | 1 |
| Q3 2025 | 4 | $458m | 2 | 1 |
| Q4 2025 | 3 | $495m | 14 | 13 |
| Q1 2026 | 2 | $414m | 11 | 14 |
| Q2 2026 | 3 | $533m | 16 | 10 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
IDYA and LLY →IDYA and JNJ →IDYA and VRTX →Choose a stock to compare with IDYA →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own IDYA, latest filings →Back to the 13F Explorer →