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IDEAYA Biosciences

253 hedge funds and large institutions have $3.16B invested in IDEAYA Biosciences in 2026 Q1 according to their latest regulatory filings, with 45 funds opening new positions, 87 increasing their positions, 75 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

41% more first-time investments, than exits

New positions opened: 45 | Existing positions closed: 32

20% more call options, than puts

Call options by funds: $46.7M | Put options by funds: $39M

16% more repeat investments, than reductions

Existing positions increased: 87 | Existing positions reduced: 75

3% more funds holding

Funds holding: 246253 (+7)

0% more funds holding in top 10

Funds holding in top 10: 33 (0)

5% less capital invested

Capital invested by funds: $3.32B → $3.16B (-$159M)

1.58% less ownership

Funds ownership: 109.41%107.83% (-1.6%)

Holders
253
Holders Change
+7
Holders Change %
+2.85%
% of All Funds
3.11%
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
45
Increased
87
Reduced
75
Closed
32
Calls
$46.7M
Puts
$39M
Net Calls
+$7.65M
Net Calls Change
-$22.8M
Name Holding Trade Value Shares
Change
Change in
Stake
AllianceBernstein
76
AllianceBernstein
Tennessee
$3.48M +$97.3K +2,900 +3%
Squarepoint
77
Squarepoint
New York
$3.31M +$3.33M +99,278 New
California State Teachers Retirement System (CalSTRS)
78
California State Teachers Retirement System (CalSTRS)
California
$3.22M +$695K +20,710 +27%
PIM
79
Platinum Investment Management
Australia
$3.05M -$972K -28,967 -24%
Citigroup
80
Citigroup
New York
$2.96M -$1.28M -38,187 -30%
Jane Street
81
Jane Street
New York
$2.94M +$2.96M +88,133 New
Rafferty Asset Management
82
Rafferty Asset Management
New York
$2.89M -$1.33M -39,678 -31%
SFCM
83
Seven Fleet Capital Management
California
$2.87M +$2.89M +86,283 New
SEI Investments
84
SEI Investments
Pennsylvania
$2.82M +$539K +16,053 +23%
KCA
85
KVP Capital Advisors
California
$2.66M +$2.67M +79,700 New
Manulife (Manufacturers Life Insurance)
86
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$2.43M +$101K +2,997 +4%
AA
87
ALPS Advisors
Colorado
$2.38M -$10.1K -302 -0.4%
Legal & General Group
88
Legal & General Group
United Kingdom
$2.35M -$449K -13,373 -16%
Mitsubishi UFJ Asset Management
89
Mitsubishi UFJ Asset Management
Japan
$2.2M +$2.04M +60,875 +1,173%
AssetMark Inc
90
AssetMark Inc
California
$2.19M -$212K -6,305 -9%
Schroder Investment Management Group
91
Schroder Investment Management Group
United Kingdom
$2.07M -$3.53M -105,334 -61%
MML Investors Services
92
MML Investors Services
Massachusetts
$1.96M -$838K -24,989 -30%
AC
93
AlphaCore Capital
California
$1.91M +$1.7M +50,649 +750%
XT
94
XTX Topco
Cayman Islands
$1.89M -$320K -9,553 -14%
Lido Advisors
95
Lido Advisors
California
$1.85M -$67 -2 -0%
YIH
96
Y-Intercept (HK)
Hong Kong
$1.82M -$886K -26,415 -33%
VAM
97
Vanguard Asset Management
$1.75M +$1.76M +52,440 New
DekaBank Deutsche Girozentrale
98
DekaBank Deutsche Girozentrale
Germany
$1.68M
BCI
99
Brinker Capital Investments
Pennsylvania
$1.64M -$303K -9,037 -15%
ACP
100
Acuta Capital Partners
California
$1.61M +$1.62M +48,234 New

IDYA Hedge Fund Activity: Q1 2026 in Review

253 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in IDEAYA Biosciences (IDYA) for Q1 2026, worth a combined $3.16B — down 4.8% from $3.32B a quarter earlier.

Buyers outnumbered sellers: 45 funds opened new IDYA positions and 32 closed out — a net gain of 13 holders — while 87 added to existing stakes and 75 trimmed.

The largest buyer was Morgan Stanley, adding an estimated $20.4M. The largest seller was Point72 Asset Management, cutting an estimated $50.9M.

  • 253 institutional investors held IDEAYA Biosciences (IDYA) as of Q1 2026, up from 246 in Q4 2025.
  • Funds reported $3.16B of IDEAYA Biosciences stock for Q1 2026, down 4.8% quarter-over-quarter.
  • 45 funds opened new IDEAYA Biosciences positions in Q1 2026 and 32 closed out, a net change of +13 holders.
  • The largest IDEAYA Biosciences buyer in Q1 2026 was Morgan Stanley, an estimated $20.4M added.
  • The largest IDEAYA Biosciences seller in Q1 2026 was Point72 Asset Management, an estimated $50.9M sold.

Based on aggregated 13F filings for Q1 2026.