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Diameter Capital Partners’s ATI ATI Stock Holding History

Diameter Capital Partners’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
2025
Q2 		– Sell
-270,000
Closed -$14M – 27
2025
Q1 		$14M Buy
270,000
+140,000
+108% +$7.95M 1.64% 13
2024
Q4 		$7.16M Buy
+130,000
New +$7.67M 1.06% 24

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Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
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
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
DC
Dendur Capital New York $1.36B AUM 38.43% 1-Year Est. Return

Diameter Capital Partners's ATI Position: Q2 2025 in Review

Diameter Capital Partners sold out of ATI (ATI) in Q2 2025, closing a stake of 270,000 shares — an estimated $14M sold.

Diameter Capital Partners first reported a position in ATI in Q4 2024 and held it in 2 quarters. The position peaked at $14M in Q1 2025. 471 funds tracked by Wall St. Rank hold ATI as of Q2 2025.

  • Diameter Capital Partners reported no remaining ATI position as of Q2 2025 after selling out during the quarter.
  • Diameter Capital Partners sold 270,000 ATI shares in Q2 2025, an estimated $14M.
  • Diameter Capital Partners first reported a position in ATI in Q4 2024 and held it in 2 quarters.
  • Diameter Capital Partners's ATI position peaked at $14M in Q1 2025.
  • 471 funds tracked by Wall St. Rank held ATI as of Q2 2025.

Based on Diameter Capital Partners's 13F filing for Q2 2025, filed 14 Aug 2025.