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Weiss Asset Management’s ATI ATI Stock Holding History

Weiss Asset 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
2026
Q1 		– Sell
-119,031
Closed -$13.7M – 519
2025
Q4 		$13.7M Buy
119,031
+108,790
+1,062% +$10.6M 0.18% 103
2025
Q3 		$833K Buy
+10,241
New +$830K 0.01% 378

Other funds holding ATI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return

Weiss Asset Management's ATI Position: Q1 2026 in Review

Weiss Asset Management sold out of ATI (ATI) in Q1 2026, closing a stake of 119,031 shares — an estimated $13.7M sold.

Weiss Asset Management first reported a position in ATI in Q3 2025 and held it in 2 quarters. The position peaked at $13.7M in Q4 2025. 678 funds tracked by Wall St. Rank hold ATI as of Q1 2026.

  • Weiss Asset Management reported no remaining ATI position as of Q1 2026 after selling out during the quarter.
  • Weiss Asset Management sold 119,031 ATI shares in Q1 2026, an estimated $13.7M.
  • Weiss Asset Management first reported a position in ATI in Q3 2025 and held it in 2 quarters.
  • Weiss Asset Management's ATI position peaked at $13.7M in Q4 2025.
  • 678 funds tracked by Wall St. Rank held ATI as of Q1 2026.

Based on Weiss Asset Management's 13F filing for Q1 2026, filed 15 May 2026.