OP Asset Management’s Atmus Filtration Technologies ATMU Stock Holding History

OP Asset Management’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	$604K	Sell	11,837 -110,503	-90%	-$6M	0.01%	644
2026 Q1	$6.95M	Buy	122,340 +84,992	+228%	+$5.02M	0.06%	197
2025 Q4	$1.94M	Buy	37,348 +18,604	+99%	+$901K	0.02%	442
2025 Q3	$845K	Hold	18,744	–	–	0.01%	613
2025 Q2	$683K	Buy	18,744 +6,106	+48%	+$218K	0.01%	638
2025 Q1	$464K	Buy	+12,638	New	+$499K	0.01%	676

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

OP Asset Management's ATMU Position: Q2 2026 in Review

OP Asset Management reduced its Atmus Filtration Technologies (ATMU) stake by 90% in Q2 2026, selling an estimated $6M and leaving 11,837 shares worth $604K. The position accounts for 0.01% of the portfolio, ranked #644.

OP Asset Management first reported a position in ATMU in Q1 2025 and has held it in 6 quarters since. The position peaked at $6.95M in Q1 2026. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

OP Asset Management held 11,837 shares of Atmus Filtration Technologies worth $604K as of Q2 2026.
OP Asset Management sold 110,503 Atmus Filtration Technologies shares in Q2 2026, an estimated $6M.
Atmus Filtration Technologies made up 0.01% of OP Asset Management's portfolio in Q2 2026, its #644 holding.
OP Asset Management first reported a position in Atmus Filtration Technologies in Q1 2025 and has held it in 6 quarters since.
OP Asset Management's Atmus Filtration Technologies position peaked at $6.95M in Q1 2026.
335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on OP Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.