Simplex Trading
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Simplex Trading’s IDEAYA Biosciences IDYA Stock Holding History

Simplex Trading’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 		$89.4K Sell
2,400
-27,800
-92% -$851K ﹤0.01% 5694
2026
Q1 		$1.01M Sell
30,200
-4,900
-14% -$164K ﹤0.01% 2493
2025
Q4 		$1.21M Buy
35,100
+32,400
+1,200% +$1.03M ﹤0.01% 2444
2025
Q3 		$73K Buy
2,700
+2,600
+2,600% +$62.9K ﹤0.01% 6077
2025
Q2 		$2K Buy
+100
New +$1.92K ﹤0.01% 8137
2024
Q4 		– Sell
-1,400
Closed -$44K – 9013
2024
Q3 		$44K Buy
1,400
+400
+40% +$15.2K ﹤0.01% 6001
2024
Q2 		$35K Sell
1,000
-4,200
-81% -$166K ﹤0.01% 6409
2024
Q1 		$228K Buy
5,200
+4,700
+940% +$202K ﹤0.01% 4701
2023
Q4 		$17K Sell
500
-1,700
-77% -$50.7K ﹤0.01% 7051
2023
Q3 		$59K Sell
2,200
-88,800
-98% -$2.25M ﹤0.01% 5648
2023
Q2 		$2.14M Buy
+91,000
New +$1.87M ﹤0.01% 1925
2022
Q4 		– Sell
-100
Closed -$1K – 9713
2022
Q3 		$1K Hold
100
– – ﹤0.01% 9549
2022
Q2 		$1K Buy
+100
New +$1.11K ﹤0.01% 9597

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

Simplex Trading's IDYA Position: Q2 2026 in Review

Simplex Trading opened a new position in IDEAYA Biosciences (IDYA) in Q2 2026: 4,021 shares worth $150K. The stake represents ﹤0.01% of the portfolio and ranks #5080 among its holdings. This is a return to the name: Simplex Trading previously reported a position in IDYA as recently as Q4 2025.

Simplex Trading first reported a position in IDYA in Q1 2023 and has held it in 6 quarters since. 286 funds tracked by Wall St. Rank hold IDYA as of Q2 2026.

  • Simplex Trading held 4,021 shares of IDEAYA Biosciences worth $150K as of Q2 2026.
  • IDEAYA Biosciences was a new Simplex Trading position in Q2 2026.
  • IDEAYA Biosciences made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5080 holding.
  • Simplex Trading first reported a position in IDEAYA Biosciences in Q1 2023 and has held it in 6 quarters since.
  • 286 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.