Hawk Ridge Capital Management’s Atmus Filtration Technologies ATMU Stock Holding History

Hawk Ridge Capital 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
2025 Q3	–	Sell	-434,800	Closed	-$15.8M	–	45
2025 Q2	$15.8M	Buy	+434,800	New	+$15.5M	0.66%	37
2025 Q1	–	Sell	-295,192	Closed	-$11.6M	–	43
2024 Q4	$11.6M	Sell	295,192 -349,869	-54%	-$14.2M	0.55%	36
2024 Q3	$24.2M	Hold	645,061	–	–	1.04%	31
2024 Q2	$18.6M	Buy	645,061 +324,397	+101%	+$9.84M	0.8%	34
2024 Q1	$10.3M	Buy	+320,664	New	+$7.67M	0.47%	35

Other funds holding ATMU

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

Eminence Capital New York $4.36B AUM 3.1% 1-Year Est. Return

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

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

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

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Hawk Ridge Capital Management's ATMU Position: Q3 2025 in Review

Hawk Ridge Capital Management sold out of Atmus Filtration Technologies (ATMU) in Q3 2025, closing a stake of 434,800 shares — an estimated $15.8M sold.

Hawk Ridge Capital Management first reported a position in ATMU in Q1 2024 and held it in 5 quarters. The position peaked at $24.2M in Q3 2024. 291 funds tracked by Wall St. Rank hold ATMU as of Q3 2025.

Hawk Ridge Capital Management reported no remaining Atmus Filtration Technologies position as of Q3 2025 after selling out during the quarter.
Hawk Ridge Capital Management sold 434,800 Atmus Filtration Technologies shares in Q3 2025, an estimated $15.8M.
Hawk Ridge Capital Management first reported a position in Atmus Filtration Technologies in Q1 2024 and held it in 5 quarters.
Hawk Ridge Capital Management's Atmus Filtration Technologies position peaked at $24.2M in Q3 2024.
291 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q3 2025.

Based on Hawk Ridge Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.