Mariner
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Mariner’s IDEAYA Biosciences IDYA Stock Holding History

Mariner’s Portfolio IDYA Stock Details IDYA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-10,772
Closed -$372K – 3684
2025
Q4 		$372K Buy
10,772
+1,218
+13% +$38.8K ﹤0.01% 2668
2025
Q3 		$260K Buy
+9,554
New +$231K ﹤0.01% 2946
2025
Q2 		– Sell
-11,727
Closed -$192K – 3568
2025
Q1 		$192K Buy
11,727
+1,952
+20% +$41.6K ﹤0.01% 3024
2024
Q4 		$251K Buy
9,775
+869
+10% +$24.6K ﹤0.01% 2794
2024
Q3 		$282K Sell
8,906
-96
-1% -$3.64K ﹤0.01% 2627
2024
Q2 		$316K Buy
9,002
+1,275
+17% +$50.5K ﹤0.01% 2411
2024
Q1 		$339K Buy
+7,727
New +$332K ﹤0.01% 2334
2022
Q4 		– Sell
-12,356
Closed -$184K – 2783
2022
Q3 		$184K Buy
+12,356
New +$160K ﹤0.01% 2083

Other funds holding IDYA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
LGM
Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return

Mariner's IDYA Position: Q1 2026 in Review

Mariner sold out of IDEAYA Biosciences (IDYA) in Q1 2026, closing a stake of 10,772 shares — an estimated $372K sold.

Mariner first reported a position in IDYA in Q3 2022 and held it in 8 quarters. The position peaked at $372K in Q4 2025. 254 funds tracked by Wall St. Rank hold IDYA as of Q1 2026.

  • Mariner reported no remaining IDEAYA Biosciences position as of Q1 2026 after selling out during the quarter.
  • Mariner sold 10,772 IDEAYA Biosciences shares in Q1 2026, an estimated $372K.
  • Mariner first reported a position in IDEAYA Biosciences in Q3 2022 and held it in 8 quarters.
  • Mariner's IDEAYA Biosciences position peaked at $372K in Q4 2025.
  • 254 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.