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
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 $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
LGM
Logos Global Management San Francisco, California $2B AUM 444.09% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Hudson Bay Capital Management's IDYA Position: Q1 2026 in Review

Hudson Bay Capital Management opened a new position in IDEAYA Biosciences (IDYA) in Q1 2026: 3,010 shares worth $100K. The stake represents ﹤0.01% of the portfolio and ranks #1180 among its holdings. This is a return to the name: Hudson Bay Capital Management previously reported a position in IDYA as recently as Q1 2024.

Hudson Bay Capital Management first reported a position in IDYA in Q3 2023 and has held it in 4 quarters since. The position peaked at $5.44M in Q1 2024. 253 funds tracked by Wall St. Rank hold IDYA as of Q1 2026.

  • Hudson Bay Capital Management held 3,010 shares of IDEAYA Biosciences worth $100K as of Q1 2026.
  • IDEAYA Biosciences was a new Hudson Bay Capital Management position in Q1 2026.
  • IDEAYA Biosciences made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #1180 holding.
  • Hudson Bay Capital Management first reported a position in IDEAYA Biosciences in Q3 2023 and has held it in 4 quarters since.
  • Hudson Bay Capital Management's IDEAYA Biosciences position peaked at $5.44M in Q1 2024.
  • 253 funds tracked by Wall St. Rank held IDEAYA Biosciences as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.