Mariner
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Mariner’s Atmus Filtration Technologies ATMU Stock Holding History

Mariner’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 		– Sell
-6,072
Closed -$344K – 3537
2026
Q1 		$344K Sell
6,072
-2,003
-25% -$118K ﹤0.01% 2750
2025
Q4 		$419K Buy
8,075
+2,919
+57% +$141K ﹤0.01% 2580
2025
Q3 		$232K Buy
+5,156
New +$216K ﹤0.01% 3041
2024
Q2 		– Sell
-6,276
Closed -$202K – 3165
2024
Q1 		$202K Buy
+6,276
New +$150K ﹤0.01% 2761

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
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Mariner's ATMU Position: Q2 2026 in Review

Mariner sold out of Atmus Filtration Technologies (ATMU) in Q2 2026, closing a stake of 6,072 shares — an estimated $344K sold.

Mariner first reported a position in ATMU in Q1 2024 and held it in 4 quarters. The position peaked at $419K in Q4 2025. 336 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

  • Mariner reported no remaining Atmus Filtration Technologies position as of Q2 2026 after selling out during the quarter.
  • Mariner sold 6,072 Atmus Filtration Technologies shares in Q2 2026, an estimated $344K.
  • Mariner first reported a position in Atmus Filtration Technologies in Q1 2024 and held it in 4 quarters.
  • Mariner's Atmus Filtration Technologies position peaked at $419K in Q4 2025.
  • 336 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.