IDEAYA Biosciences
IDYA
282 hedge funds and large institutions have $3.8B invested in IDEAYA Biosciences in 2026 Q2 according to their latest regulatory filings, with 66 funds opening new positions, 91 increasing their positions, 88 reducing their positions, and 33 closing their positions.
100% more first-time investments, than exits
New positions opened: 66 | Existing positions closed: 33
67% more funds holding in top 10
Funds holding in top 10: 3 → 5 (+2)
43% more call options, than puts
Call options by funds: $15.8M | Put options by funds: $11.1M
20% more capital invested
Capital invested by funds: $3.16B → $3.8B (+$641M)
11% more funds holding
Funds holding: 253 → 282 (+29)
8.37% more ownership
Funds ownership: 107.83% → 116.2% (+8.4%)
3% more repeat investments, than reductions
Existing positions increased: 91 | Existing positions reduced: 88
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AllianceBernstein
Nashville,
Tennessee
|
+$46.7M |
| 2 |
DM
Deerfield Management
New York
|
+$36.3M |
| 3 |
BBA
Baker Bros. Advisors
New York
|
+$32.6M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$28.7M |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$27.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$47.6M |
| 2 |
Fiera Capital (Canada)
Montreal,
Quebec, Canada
|
-$33.1M |
| 3 |
FTM
First Turn Management
Del Mar,
California
|
-$29.1M |
| 4 |
Ensign Peak Advisors
Salt Lake City,
Utah
|
-$19.4M |
| 5 |
LGM
Logos Global Management
San Francisco,
California
|
-$13.8M |
IDYA Hedge Fund Activity: Q2 2026 in Review
282 of the 8,279 institutional investors tracked by Wall St. Rank reported a position in IDEAYA Biosciences (IDYA) for Q2 2026, worth a combined $3.8B — up 20% from $3.16B a quarter earlier.
Buyers outnumbered sellers: 66 funds opened new IDYA positions and 33 closed out — a net gain of 33 holders — while 91 added to existing stakes and 88 trimmed.
The largest buyer was AllianceBernstein, adding an estimated $46.7M. The largest seller was Federated Hermes, cutting an estimated $47.6M.
- 282 institutional investors held IDEAYA Biosciences (IDYA) as of Q2 2026, up from 253 in Q1 2026.
- Funds reported $3.8B of IDEAYA Biosciences stock for Q2 2026, up 20% quarter-over-quarter.
- 66 funds opened new IDEAYA Biosciences positions in Q2 2026 and 33 closed out, a net change of +33 holders.
- The largest IDEAYA Biosciences buyer in Q2 2026 was AllianceBernstein, an estimated $46.7M added.
- The largest IDEAYA Biosciences seller in Q2 2026 was Federated Hermes, an estimated $47.6M sold.
Based on aggregated 13F filings for Q2 2026.