Hudson Bay Capital Management
IDYA icon

Hudson Bay Capital Management’s IDEAYA Biosciences IDYA Stock Holding History

Hudson Bay Capital 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 		– Sell
-191,000
Closed -$6.36M – 1506
2026
Q1 		$6.36M Buy
+191,000
New +$6.41M 0.02% 440
2025
Q3 		– Sell
-20,000
Closed -$420K – 1438
2025
Q2 		$420K Buy
+20,000
New +$384K ﹤0.01% 1116

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 $3.38T AUM 44.17% 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

Hudson Bay Capital Management's IDYA Position: Q2 2026 in Review

Hudson Bay Capital Management sold out of IDEAYA Biosciences (IDYA) in Q2 2026, closing a stake of 3,010 shares — an estimated $100K sold.

Hudson Bay Capital Management first reported a position in IDYA in Q3 2023 and held it in 4 quarters. The position peaked at $5.44M in Q1 2024. 285 funds tracked by Wall St. Rank hold IDYA as of Q2 2026.

  • Hudson Bay Capital Management reported no remaining IDEAYA Biosciences position as of Q2 2026 after selling out during the quarter.
  • Hudson Bay Capital Management sold 3,010 IDEAYA Biosciences shares in Q2 2026, an estimated $100K.
  • Hudson Bay Capital Management first reported a position in IDEAYA Biosciences in Q3 2023 and held it in 4 quarters.
  • Hudson Bay Capital Management's IDEAYA Biosciences position peaked at $5.44M in Q1 2024.
  • 285 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q2 2026.

Based on Hudson Bay Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.