Janus Henderson Group
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Janus Henderson Group’s Atmus Filtration Technologies ATMU Stock Holding History

Janus Henderson Group’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 		$88.1M Buy
1,551,117
+181,792
+13% +$10.7M 0.04% 304
2025
Q4 		$71.1M Buy
1,369,325
+476,429
+53% +$23.1M 0.03% 351
2025
Q3 		$40.3M Buy
892,896
+98,280
+12% +$4.12M 0.02% 459
2025
Q2 		$28.9M Buy
794,616
+320,248
+68% +$11.4M 0.01% 498
2025
Q1 		$17.8M Buy
474,368
+122,428
+35% +$4.83M 0.01% 595
2024
Q4 		$13.8M Buy
351,940
+262,199
+292% +$10.6M 0.01% 659
2024
Q3 		$3.37M Buy
89,741
+52,541
+141% +$1.71M ﹤0.01% 1055
2024
Q2 		$1.07M Buy
+37,200
New +$1.13M ﹤0.01% 1585

Other funds holding ATMU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Janus Henderson Group's ATMU Position: Q1 2026 in Review

Janus Henderson Group increased its Atmus Filtration Technologies (ATMU) stake by 13% in Q1 2026, buying an estimated $10.7M and bringing the position to 1,551,117 shares worth $88.1M. The position accounts for 0.04% of the portfolio, ranked #304.

Janus Henderson Group first reported a position in ATMU in Q2 2024 and has held it in 8 quarters since. 351 funds tracked by Wall St. Rank hold ATMU as of Q1 2026.

  • Janus Henderson Group held 1,551,117 shares of Atmus Filtration Technologies worth $88.1M as of Q1 2026.
  • Janus Henderson Group bought 181,792 Atmus Filtration Technologies shares in Q1 2026, an estimated $10.7M.
  • Atmus Filtration Technologies made up 0.04% of Janus Henderson Group's portfolio in Q1 2026, its #304 holding.
  • Janus Henderson Group first reported a position in Atmus Filtration Technologies in Q2 2024 and has held it in 8 quarters since.
  • 351 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.