Capstone Investment Advisors’s Atmus Filtration Technologies ATMU Stock Holding History

Capstone Investment Advisors’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	$1.09M	Buy	19,142 +1,537	+9%	+$90.8K	﹤0.01%	841
2025 Q4	$914K	Buy	17,605 +8,747	+99%	+$423K	﹤0.01%	900
2025 Q3	$399K	Buy	+8,858	New	+$372K	﹤0.01%	1520
2024 Q2	–	Sell	-95,398	Closed	-$3.08M	–	2078
2024 Q1	$3.08M	Buy	95,398 +85,398	+854%	+$2.04M	0.01%	614
2023 Q4	$235K	Sell	10,000 -20,000	-67%	-$429K	﹤0.01%	1713
2023 Q3	$626K	Hold	30,000	–	–	﹤0.01%	1205
2023 Q2	$659K	Buy	+30,000	New	+$629K	﹤0.01%	1033

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

Capstone Investment Advisors's ATMU Position: Q1 2026 in Review

Capstone Investment Advisors increased its Atmus Filtration Technologies (ATMU) stake by 8.7% in Q1 2026, buying an estimated $90.8K and bringing the position to 19,142 shares worth $1.09M. The position accounts for ﹤0.01% of the portfolio, ranked #841.

Capstone Investment Advisors first reported a position in ATMU in Q2 2023 and has held it in 7 quarters since. The position peaked at $3.08M in Q1 2024. 351 funds tracked by Wall St. Rank hold ATMU as of Q1 2026.

Capstone Investment Advisors held 19,142 shares of Atmus Filtration Technologies worth $1.09M as of Q1 2026.
Capstone Investment Advisors bought 1,537 Atmus Filtration Technologies shares in Q1 2026, an estimated $90.8K.
Atmus Filtration Technologies made up ﹤0.01% of Capstone Investment Advisors's portfolio in Q1 2026, its #841 holding.
Capstone Investment Advisors first reported a position in Atmus Filtration Technologies in Q2 2023 and has held it in 7 quarters since.
Capstone Investment Advisors's Atmus Filtration Technologies position peaked at $3.08M in Q1 2024.
351 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q1 2026.

Based on Capstone Investment Advisors's 13F filing for Q1 2026, filed 15 May 2026.