Arrowstreet Capital’s ATI ATI Stock Holding History

Arrowstreet 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	$166M	Sell	839,786 -363,940	-30%	-$61.7M	0.07%	234
2026 Q1	$175M	Buy	1,203,726 +840,455	+231%	+$117M	0.09%	205
2025 Q4	$41.7M	Buy	+363,271	New	+$35.4M	0.02%	526
2020 Q2	–	Sell	-178,446	Closed	-$1.52M	–	2285
2020 Q1	$1.52M	Buy	+178,446	New	+$2.85M	﹤0.01%	1163
2016 Q1	–	Sell	-76,195	Closed	-$857K	–	1330
2015 Q4	$857K	Buy	+76,195	New	+$1.05M	﹤0.01%	1023
2015 Q3	–	Sell	-68,362	Closed	-$2.06M	–	1338
2015 Q2	$2.06M	Buy	+68,362	New	+$2.26M	0.01%	628

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 $3.38T AUM 44.17% 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

Arrowstreet Capital's ATI Position: Q2 2026 in Review

Arrowstreet Capital reduced its ATI (ATI) stake by 30% in Q2 2026, selling an estimated $61.7M and leaving 839,786 shares worth $166M. The position accounts for 0.07% of the portfolio, ranked #234.

Arrowstreet Capital first reported a position in ATI in Q2 2015 and has held it in 6 quarters since. The position peaked at $175M in Q1 2026. 795 funds tracked by Wall St. Rank hold ATI as of Q2 2026.

Arrowstreet Capital held 839,786 shares of ATI worth $166M as of Q2 2026.
Arrowstreet Capital sold 363,940 ATI shares in Q2 2026, an estimated $61.7M.
ATI made up 0.07% of Arrowstreet Capital's portfolio in Q2 2026, its #234 holding.
Arrowstreet Capital first reported a position in ATI in Q2 2015 and has held it in 6 quarters since.
Arrowstreet Capital's ATI position peaked at $175M in Q1 2026.
795 funds tracked by Wall St. Rank held ATI as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.