Atom Investors’s Atmus Filtration Technologies ATMU Stock Holding History

Atom Investors’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	$1.45M	Buy	28,401 +12,147	+75%	+$660K	0.13%	253
2026 Q1	$923K	Buy	+16,254	New	+$960K	0.07%	370
2025 Q1	–	Sell	-28,330	Closed	-$1.11M	–	504
2024 Q4	$1.11M	Sell	28,330 -75,111	-73%	-$3.05M	0.14%	225
2024 Q3	$3.88M	Buy	103,441 +20,201	+24%	+$659K	0.41%	74
2024 Q2	$2.4M	Buy	+83,240	New	+$2.52M	0.24%	136
2024 Q1	–	Sell	-15,083	Closed	-$354K	–	574
2023 Q4	$354K	Sell	15,083 -41,836	-74%	-$897K	0.06%	334
2023 Q3	$1.19M	Buy	+56,919	New	+$1.3M	0.27%	112

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 $3.37T AUM 44.26% 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

Atom Investors's ATMU Position: Q2 2026 in Review

Atom Investors increased its Atmus Filtration Technologies (ATMU) stake by 75% in Q2 2026, buying an estimated $660K and bringing the position to 28,401 shares worth $1.45M. The position accounts for 0.13% of the portfolio, ranked #253.

Atom Investors first reported a position in ATMU in Q3 2023 and has held it in 7 quarters since. The position peaked at $3.88M in Q3 2024. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

Atom Investors held 28,401 shares of Atmus Filtration Technologies worth $1.45M as of Q2 2026.
Atom Investors bought 12,147 Atmus Filtration Technologies shares in Q2 2026, an estimated $660K.
Atmus Filtration Technologies made up 0.13% of Atom Investors's portfolio in Q2 2026, its #253 holding.
Atom Investors first reported a position in Atmus Filtration Technologies in Q3 2023 and has held it in 7 quarters since.
Atom Investors's Atmus Filtration Technologies position peaked at $3.88M in Q3 2024.
335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.