Hudson Bay Capital Management
HALO icon

Hudson Bay Capital Management’s Halozyme HALO Stock Holding History

Hudson Bay Capital Management’s Portfolio HALO Stock Details HALO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2019
Q4 		– Sell
-100,000
Closed -$1.55M – 456
2019
Q3 		$1.55M Hold
100,000
– – 0.04% 278
2019
Q2 		$1.72M Buy
+100,000
New +$1.61M 0.04% 292

Other funds holding HALO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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

Hudson Bay Capital Management increased its Halozyme (HALO) stake by 4% in Q1 2026, buying an estimated $352K and bringing the position to 130,000 shares worth $8.4M. The position accounts for 0.03% of the portfolio, ranked #354.

Hudson Bay Capital Management first reported a position in HALO in Q4 2018 and has held it in 10 quarters since. The position peaked at $8.41M in Q4 2025. 635 funds tracked by Wall St. Rank hold HALO as of Q1 2026.

  • Hudson Bay Capital Management held 130,000 shares of Halozyme worth $8.4M as of Q1 2026.
  • Hudson Bay Capital Management bought 5,000 Halozyme shares in Q1 2026, an estimated $352K.
  • Halozyme made up 0.03% of Hudson Bay Capital Management's portfolio in Q1 2026, its #354 holding.
  • Hudson Bay Capital Management first reported a position in Halozyme in Q4 2018 and has held it in 10 quarters since.
  • Hudson Bay Capital Management's Halozyme position peaked at $8.41M in Q4 2025.
  • 635 funds tracked by Wall St. Rank held Halozyme as of Q1 2026.

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