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 Q2	–	Sell	-19,142	Closed	-$1.09M	–	1665
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 $6.73T AUM 46.02% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

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

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Capstone Investment Advisors's ATMU Position: Q2 2026 in Review

Capstone Investment Advisors sold out of Atmus Filtration Technologies (ATMU) in Q2 2026, closing a stake of 19,142 shares — an estimated $1.09M sold.

Capstone Investment Advisors first reported a position in ATMU in Q2 2023 and held it in 7 quarters. The position peaked at $3.08M in Q1 2024. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

Capstone Investment Advisors reported no remaining Atmus Filtration Technologies position as of Q2 2026 after selling out during the quarter.
Capstone Investment Advisors sold 19,142 Atmus Filtration Technologies shares in Q2 2026, an estimated $1.09M.
Capstone Investment Advisors first reported a position in Atmus Filtration Technologies in Q2 2023 and held it in 7 quarters.
Capstone Investment Advisors's Atmus Filtration Technologies position peaked at $3.08M in Q1 2024.
335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Capstone Investment Advisors's 13F filing for Q2 2026, filed 17 Aug 2026.