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 		$108K Sell
2,900
-13,400
-82% -$410K ﹤0.01% 5454
2026
Q1 		$543K Buy
16,300
+10,300
+172% +$346K ﹤0.01% 3156
2025
Q4 		$207K Buy
6,000
+4,700
+362% +$150K ﹤0.01% 4206
2025
Q3 		$35K Sell
1,300
-7,400
-85% -$179K ﹤0.01% 6815
2025
Q2 		$182K Buy
8,700
+2,900
+50% +$55.6K ﹤0.01% 4607
2025
Q1 		$95K Buy
5,800
+4,600
+383% +$98K ﹤0.01% 5104
2024
Q4 		$30K Sell
1,200
-2,600
-68% -$73.6K ﹤0.01% 6353
2024
Q3 		$120K Buy
3,800
+2,500
+192% +$94.8K ﹤0.01% 5045
2024
Q2 		$45K Sell
1,300
-700
-35% -$27.7K ﹤0.01% 6194
2024
Q1 		$87K Buy
2,000
+300
+18% +$12.9K ﹤0.01% 5730
2023
Q4 		$60K Sell
1,700
-2,300
-58% -$68.7K ﹤0.01% 5915
2023
Q3 		$107K Buy
4,000
+1,800
+82% +$45.6K ﹤0.01% 5015
2023
Q2 		$51K Buy
2,200
+1,800
+450% +$37K ﹤0.01% 5823
2023
Q1 		$5K Sell
400
-3,100
-89% -$51.6K ﹤0.01% 8045
2022
Q4 		$63K Sell
3,500
-800
-19% -$13.5K ﹤0.01% 5581
2022
Q3 		$64K Buy
4,300
+700
+19% +$9.09K ﹤0.01% 6097
2022
Q2 		$49K Buy
+3,600
New +$40K ﹤0.01% 6515
2022
Q1 		– Sell
-7,300
Closed -$172K – 10838
2021
Q4 		$172K Buy
7,300
+6,800
+1,360% +$158K ﹤0.01% 5405
2021
Q3 		$10K Hold
500
– – ﹤0.01% 8919
2021
Q2 		$10K Buy
500
+499
+49,900% +$10.3K ﹤0.01% 9089
2021
Q1 		$2K Buy
+1
New +$19 ﹤0.01% 8456

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.