Ken Griffin
ATMU icon

Ken Griffin’s Atmus Filtration Technologies ATMU Stock Holding History

Ken Griffin’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 		$13.1M Buy
230,465
+33,204
+17% +$1.96M ﹤0.01% 2870
2025
Q4 		$10.2M Buy
197,261
+119,979
+155% +$5.81M ﹤0.01% 3229
2025
Q3 		$3.48M Sell
77,282
-71,596
-48% -$3M ﹤0.01% 5019
2025
Q2 		$5.42M Sell
148,878
-1,054,015
-88% -$37.6M ﹤0.01% 3965
2025
Q1 		$44.2M Buy
1,202,893
+1,039,404
+636% +$41M 0.01% 1244
2024
Q4 		$6.41M Sell
163,489
-98,599
-38% -$4M ﹤0.01% 3576
2024
Q3 		$9.84M Buy
262,088
+85,000
+48% +$2.77M ﹤0.01% 2925
2024
Q2 		$5.1M Sell
177,088
-31,718
-15% -$962K ﹤0.01% 3720
2024
Q1 		$6.73M Buy
208,806
+181,505
+665% +$4.34M ﹤0.01% 3507
2023
Q4 		$641K Sell
27,301
-76,134
-74% -$1.63M ﹤0.01% 7575
2023
Q3 		$2.16M Sell
103,435
-1,476,576
-93% -$33.8M ﹤0.01% 5082
2023
Q2 		$34.7M Buy
+1,580,011
New +$33.1M 0.01% 1351

Other funds holding ATMU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 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

Ken Griffin's ATMU Position: Q1 2026 in Review

Ken Griffin increased its Atmus Filtration Technologies (ATMU) stake by 17% in Q1 2026, buying an estimated $1.96M and bringing the position to 230,465 shares worth $13.1M. The position accounts for ﹤0.01% of the portfolio, ranked #2870.

Ken Griffin first reported a position in ATMU in Q2 2023 and has held it in 12 quarters since. The position peaked at $44.2M in Q1 2025. 351 funds tracked by Wall St. Rank hold ATMU as of Q1 2026.

  • Ken Griffin held 230,465 shares of Atmus Filtration Technologies worth $13.1M as of Q1 2026.
  • Ken Griffin bought 33,204 Atmus Filtration Technologies shares in Q1 2026, an estimated $1.96M.
  • Atmus Filtration Technologies made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #2870 holding.
  • Ken Griffin first reported a position in Atmus Filtration Technologies in Q2 2023 and has held it in 12 quarters since.
  • Ken Griffin's Atmus Filtration Technologies position peaked at $44.2M in Q1 2025.
  • 351 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.