PIM
IDYA icon

Platinum Investment Management’s IDEAYA Biosciences IDYA Stock Holding History

Platinum Investment Management’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
Q2 		$5.17M Buy
138,708
+47,071
+51% +$1.44M 1.27% 22
2026
Q1 		$3.05M Sell
91,637
-28,967
-24% -$972K 0.77% 49
2025
Q4 		$4.17M Sell
120,604
-46,313
-28% -$1.48M 0.96% 40
2025
Q3 		$4.54M Hold
166,917
– – 0.29% 40
2025
Q2 		$3.51M Buy
166,917
+14,204
+9% +$273K 0.23% 44
2025
Q1 		$2.5M Hold
152,713
– – 0.14% 48
2024
Q4 		$3.92M Buy
152,713
+7,996
+6% +$226K 0.23% 44
2024
Q3 		$4.58M Hold
144,717
– – 0.21% 40
2024
Q2 		$5.08M Sell
144,717
-17,837
-11% -$706K 0.21% 36
2024
Q1 		$7.13M Sell
162,554
-499,789
-75% -$21.5M 0.29% 33
2023
Q4 		$23.6M Sell
662,343
-104,339
-14% -$3.11M 0.96% 23
2023
Q3 		$20.7M Sell
766,682
-47,988
-6% -$1.22M 0.81% 24
2023
Q2 		$19.1M Sell
814,670
-20,851
-2% -$429K 0.66% 32
2023
Q1 		$11.5M Buy
835,521
+4,984
+0.6% +$83K 0.4% 41
2022
Q4 		$15.1M Sell
830,537
-180,930
-18% -$3.04M 0.58% 32
2022
Q3 		$15.1M Buy
1,011,467
+88,423
+10% +$1.15M 0.63% 30
2022
Q2 		$12.7M Sell
923,044
-29,517
-3% -$328K 0.48% 33
2022
Q1 		$10.7M Buy
952,561
+71,476
+8% +$1.05M 0.33% 43
2021
Q4 		$20.8M Sell
881,085
-270,913
-24% -$6.29M 0.58% 33
2021
Q3 		$29.4M Buy
1,151,998
+923,277
+404% +$21.6M 0.83% 25
2021
Q2 		$4.8M Buy
228,721
+35,598
+18% +$731K 0.11% 64
2021
Q1 		$4.54M Hold
193,123
– – 0.1% 58
2020
Q4 		$2.7M Hold
193,123
– – 0.06% 78
2020
Q3 		$2.43M Buy
+193,123
New +$2.39M 0.06% 75

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
JT
Jupiter Topco New York $245B AUM
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
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
DM
Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return

Platinum Investment Management's IDYA Position: Q2 2026 in Review

Platinum Investment Management increased its IDEAYA Biosciences (IDYA) stake by 51% in Q2 2026, buying an estimated $1.44M and bringing the position to 138,708 shares worth $5.17M. The position accounts for 1.27% of the portfolio, ranked #22.

Platinum Investment Management first reported a position in IDYA in Q3 2020 and has held it in 24 quarters since. The position peaked at $29.4M in Q3 2021. 286 funds tracked by Wall St. Rank hold IDYA as of Q2 2026.

  • Platinum Investment Management held 138,708 shares of IDEAYA Biosciences worth $5.17M as of Q2 2026.
  • Platinum Investment Management bought 47,071 IDEAYA Biosciences shares in Q2 2026, an estimated $1.44M.
  • IDEAYA Biosciences made up 1.27% of Platinum Investment Management's portfolio in Q2 2026, its #22 holding.
  • Platinum Investment Management first reported a position in IDEAYA Biosciences in Q3 2020 and has held it in 24 quarters since.
  • Platinum Investment Management's IDEAYA Biosciences position peaked at $29.4M in Q3 2021.
  • 286 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q2 2026.

Based on Platinum Investment Management's 13F filing for Q2 2026, filed 13 Aug 2026.