Square Wave Capital’s ATI ATI Stock Holding History

Square Wave Capital’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 Q2	$87.7M	Buy	444,800 +78,400	+21%	+$13.3M	13.08%	3
2026 Q1	$53.3M	Buy	+366,400	New	+$51M	12.89%	4

Other funds holding ATI

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Square Wave Capital's ATI Position: Q2 2026 in Review

Square Wave Capital increased its ATI (ATI) stake by 21% in Q2 2026, buying an estimated $13.3M and bringing the position to 444,800 shares worth $87.7M. The position accounts for 13.08% of the portfolio, ranked #3.

Square Wave Capital first reported a position in ATI in Q1 2026 and has held it in 2 quarters since. 793 funds tracked by Wall St. Rank hold ATI as of Q2 2026.

Square Wave Capital held 444,800 shares of ATI worth $87.7M as of Q2 2026.
Square Wave Capital bought 78,400 ATI shares in Q2 2026, an estimated $13.3M.
ATI made up 13.08% of Square Wave Capital's portfolio in Q2 2026, its #3 holding.
Square Wave Capital first reported a position in ATI in Q1 2026 and has held it in 2 quarters since.
793 funds tracked by Wall St. Rank held ATI as of Q2 2026.

Based on Square Wave Capital's 13F filing for Q2 2026, filed 14 Aug 2026.