PDT Partners’s Atmus Filtration Technologies ATMU Stock Holding History

PDT Partners’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	$2.59M	Hold	45,616	–	–	0.15%	207
2025 Q4	$2.37M	Sell	45,616 -2,500	-5%	-$121K	0.15%	222
2025 Q3	$2.17M	Sell	48,116 -69,854	-59%	-$2.93M	0.14%	242
2025 Q2	$4.3M	Buy	117,970 +17,616	+18%	+$628K	0.24%	142
2025 Q1	$3.69M	Buy	100,354 +25,613	+34%	+$1.01M	0.26%	121
2024 Q4	$2.93M	Sell	74,741 -27	-0%	-$1.1K	0.26%	127
2024 Q3	$2.81M	Sell	74,768 -18,909	-20%	-$617K	0.25%	132
2024 Q2	$2.7M	Buy	+93,677	New	+$2.84M	0.26%	132
2024 Q1	–	Sell	-24,917	Closed	-$585K	–	624
2023 Q4	$585K	Buy	+24,917	New	+$534K	0.06%	378

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

PDT Partners's ATMU Position: Q1 2026 in Review

PDT Partners held its Atmus Filtration Technologies (ATMU) position steady in Q1 2026 at 45,616 shares worth $2.59M. The position accounts for 0.15% of the portfolio, ranked #207.

PDT Partners first reported a position in ATMU in Q4 2023 and has held it in 9 quarters since. The position peaked at $4.3M in Q2 2025. 351 funds tracked by Wall St. Rank hold ATMU as of Q1 2026.

PDT Partners held 45,616 shares of Atmus Filtration Technologies worth $2.59M as of Q1 2026.
PDT Partners left its Atmus Filtration Technologies share count unchanged in Q1 2026.
Atmus Filtration Technologies made up 0.15% of PDT Partners's portfolio in Q1 2026, its #207 holding.
PDT Partners first reported a position in Atmus Filtration Technologies in Q4 2023 and has held it in 9 quarters since.
PDT Partners's Atmus Filtration Technologies position peaked at $4.3M in Q2 2025.
351 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q1 2026.

Based on PDT Partners's 13F filing for Q1 2026, filed 15 May 2026.