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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State Street
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Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Invesco
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Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

Hudson Bay Capital Management increased its ATI (ATI) stake by 86% in Q2 2026, buying an estimated $3.99M and bringing the position to 50,919 shares worth $10M. The position accounts for 0.03% of the portfolio, ranked #363.

Hudson Bay Capital Management first reported a position in ATI in Q3 2017 and has held it in 15 quarters since. The position peaked at $17.9M in Q2 2025. 795 funds tracked by Wall St. Rank hold ATI as of Q2 2026.

  • Hudson Bay Capital Management held 50,919 shares of ATI worth $10M as of Q2 2026.
  • Hudson Bay Capital Management bought 23,522 ATI shares in Q2 2026, an estimated $3.99M.
  • ATI made up 0.03% of Hudson Bay Capital Management's portfolio in Q2 2026, its #363 holding.
  • Hudson Bay Capital Management first reported a position in ATI in Q3 2017 and has held it in 15 quarters since.
  • Hudson Bay Capital Management's ATI position peaked at $17.9M in Q2 2025.
  • 795 funds tracked by Wall St. Rank held ATI as of Q2 2026.

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