Hudson Bay Capital Management
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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

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Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

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

Hudson Bay Capital Management increased its Halozyme (HALO) stake by 3.8% in Q2 2026, buying an estimated $341K and bringing the position to 135,000 shares worth $10.6M. The position accounts for 0.03% of the portfolio, ranked #351.

Hudson Bay Capital Management first reported a position in HALO in Q4 2018 and has held it in 11 quarters since. 673 funds tracked by Wall St. Rank hold HALO as of Q2 2026.

  • Hudson Bay Capital Management held 135,000 shares of Halozyme worth $10.6M as of Q2 2026.
  • Hudson Bay Capital Management bought 5,000 Halozyme shares in Q2 2026, an estimated $341K.
  • Halozyme made up 0.03% of Hudson Bay Capital Management's portfolio in Q2 2026, its #351 holding.
  • Hudson Bay Capital Management first reported a position in Halozyme in Q4 2018 and has held it in 11 quarters since.
  • 673 funds tracked by Wall St. Rank held Halozyme as of Q2 2026.

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