We are live on ! Find out more
IDYA icon

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.

New
Increased
Maintained
Reduced
Closed

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

Holders
282
Holders Change
+29
Holders Change %
+11.46%
% of All Funds
3.41%
Holding in Top 10
5
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+66.67%
% of All Funds
0.06%
New
66
Increased
91
Reduced
88
Closed
33
Calls
$15.8M
Puts
$11.1M
Net Calls
+$4.74M
Net Calls Change
-$2.91M

Top Buyers

Rank Fund Capital Flow
1
AllianceBernstein
AllianceBernstein
Tennessee
+$46.7M
2
DM
Deerfield Management
New York
+$36.3M
3
BBA
Baker Bros. Advisors
New York
+$32.6M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$28.7M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$27.3M

Top Sellers

Rank Fund Capital Flow
1
Federated Hermes
Federated Hermes
Pennsylvania
-$47.6M
2
Fiera Capital (Canada)
Fiera Capital (Canada)
Quebec, Canada
-$33.1M
3
FTM
First Turn Management
California
-$29.1M
4
Ensign Peak Advisors
Ensign Peak Advisors
Utah
-$19.4M
5
LGM
Logos Global Management
California
-$13.8M
Name Holding Trade Value Shares
Change 		Change in
Stake
EGM
301
Engineers Gate Manager
New York
– -$272K -8,150 Closed
BC
302
Bridgefront Capital
Texas
– -$212K -6,363 Closed
Hudson Bay Capital Management
303
Hudson Bay Capital Management
Connecticut
– -$100K -3,010 Closed
ASN
304
Advisory Services Network
Georgia
– -$62.6K -1,880 Closed
QCG
305
Quadrant Capital Group
Ohio
– -$52.1K -1,563 Closed
MCM
306
MAI Capital Management
Ohio
– -$44.6K -1,338 Closed
CIAM
307
Caitong International Asset Management
Hong Kong
– -$32K -960 Closed
AP
308
Antipodes Partners
Australia
– -$30.6K -917 Closed
MAM
309
Meeder Asset Management
Ohio
– -$8.36K -251 Closed
EB
310
Eastern Bank
Massachusetts
– -$6.4K -192 Closed
GSEP
311
Golden State Equity Partners
California
– -$3.43K -103 Closed
RFP
312
Root Financial Partners
California
– -$1.17K -35 Closed
VWM
313
Vermillion Wealth Management
Minnesota
– -$200 -6 Closed
NWM
314
Navigoe Wealth Management
California
– +$31 +1 New
9 10 11 12
13

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.