Hudson Bay Capital Management
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Hudson Bay Capital Management’s ATI ATI Stock Holding History

Hudson Bay Capital Management’s Portfolio ATI Stock Details ATI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2018
Q4 		– Sell
-10,000
Closed -$296K – 773
2018
Q3 		$296K Buy
+10,000
New +$269K ﹤0.01% 649

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VPM
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Capital World Investors
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State Street
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Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

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

Hudson Bay Capital Management reduced its ATI (ATI) stake by 70% in Q1 2026, selling an estimated $8.98M and leaving 27,397 shares worth $3.99M. The position accounts for 0.01% of the portfolio, ranked #582.

Hudson Bay Capital Management first reported a position in ATI in Q3 2017 and has held it in 14 quarters since. The position peaked at $17.9M in Q2 2025. 675 funds tracked by Wall St. Rank hold ATI as of Q1 2026.

  • Hudson Bay Capital Management held 27,397 shares of ATI worth $3.99M as of Q1 2026.
  • Hudson Bay Capital Management sold 64,499 ATI shares in Q1 2026, an estimated $8.98M.
  • ATI made up 0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #582 holding.
  • Hudson Bay Capital Management first reported a position in ATI in Q3 2017 and has held it in 14 quarters since.
  • Hudson Bay Capital Management's ATI position peaked at $17.9M in Q2 2025.
  • 675 funds tracked by Wall St. Rank held ATI as of Q1 2026.

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