California State Teachers Retirement System (CalSTRS)’s Atmus Filtration Technologies ATMU Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio ATMU Stock Details ATMU Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$5.53M	Buy	97,466 +18,890	+24%	+$1.12M	0.01%	956
2025 Q4	$4.08M	Buy	78,576 +1,099	+1%	+$53.2K	﹤0.01%	1035
2025 Q3	$3.49M	Sell	77,477 -5,800	-7%	-$243K	﹤0.01%	1107
2025 Q2	$3.03M	Buy	83,277 +236	+0.3%	+$8.42K	﹤0.01%	1136
2025 Q1	$3.05M	Buy	83,041 +5,065	+6%	+$200K	﹤0.01%	1110
2024 Q4	$3.06M	Sell	77,976 -908	-1%	-$36.8K	﹤0.01%	1155
2024 Q3	$2.96M	Sell	78,884 -2,461	-3%	-$80.3K	﹤0.01%	1179
2024 Q2	$2.34M	Buy	81,345 +56,753	+231%	+$1.72M	﹤0.01%	1284
2024 Q1	$793K	Buy	24,592 +6,831	+38%	+$163K	﹤0.01%	1923
2023 Q4	$417K	Sell	17,761 -709	-4%	-$15.2K	﹤0.01%	2298
2023 Q3	$385K	Buy	+18,470	New	+$423K	﹤0.01%	2330

Other funds holding ATMU

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s ATMU Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) increased its Atmus Filtration Technologies (ATMU) stake by 24% in Q1 2026, buying an estimated $1.12M and bringing the position to 97,466 shares worth $5.53M. The position accounts for 0.01% of the portfolio, ranked #956.

California State Teachers Retirement System (CalSTRS) first reported a position in ATMU in Q3 2023 and has held it in 11 quarters since. 351 funds tracked by Wall St. Rank hold ATMU as of Q1 2026.

California State Teachers Retirement System (CalSTRS) held 97,466 shares of Atmus Filtration Technologies worth $5.53M as of Q1 2026.
California State Teachers Retirement System (CalSTRS) bought 18,890 Atmus Filtration Technologies shares in Q1 2026, an estimated $1.12M.
Atmus Filtration Technologies made up 0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #956 holding.
California State Teachers Retirement System (CalSTRS) first reported a position in Atmus Filtration Technologies in Q3 2023 and has held it in 11 quarters since.
351 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.