Hudson Bay Capital Management
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Hudson Bay Capital Management’s Boston Scientific BSX Stock Holding History

Hudson Bay Capital Management’s Portfolio BSX Stock Details BSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-66,100
Closed -$7.1M – 1274
2025
Q2 		$7.1M Buy
66,100
+60,200
+1,020% +$6.09M 0.02% 449
2025
Q1 		$595K Buy
+5,900
New +$594K ﹤0.01% 1010

Other funds holding BSX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

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

Hudson Bay Capital Management held its Boston Scientific (BSX) position steady in Q1 2026 at 484,000 shares worth $30.4M. The position accounts for 0.1% of the portfolio, ranked #151.

Hudson Bay Capital Management first reported a position in BSX in Q1 2015 and has held it in 8 quarters since. The position peaked at $52M in Q2 2025. 1,665 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Hudson Bay Capital Management held 484,000 shares of Boston Scientific worth $30.4M as of Q1 2026.
  • Hudson Bay Capital Management left its Boston Scientific share count unchanged in Q1 2026.
  • Boston Scientific made up 0.1% of Hudson Bay Capital Management's portfolio in Q1 2026, its #151 holding.
  • Hudson Bay Capital Management first reported a position in Boston Scientific in Q1 2015 and has held it in 8 quarters since.
  • Hudson Bay Capital Management's Boston Scientific position peaked at $52M in Q2 2025.
  • 1,665 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

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