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Magnetar Financial’s Atmus Filtration Technologies ATMU Stock Holding History

Magnetar Financial’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
-43,739
Closed -$2.48M – 1171
2026
Q1 		$2.48M Sell
43,739
-1,390
-3% -$82.1K 0.03% 284
2025
Q4 		$2.34M Buy
+45,129
New +$2.18M 0.02% 326
2025
Q3 		– Sell
-31,646
Closed -$1.15M – 895
2025
Q2 		$1.15M Buy
+31,646
New +$1.13M 0.01% 414
2025
Q1 		– Sell
-13,068
Closed -$512K – 734
2024
Q4 		$512K Buy
+13,068
New +$530K 0.01% 369

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

Magnetar Financial's ATMU Position: Q2 2026 in Review

Magnetar Financial sold out of Atmus Filtration Technologies (ATMU) in Q2 2026, closing a stake of 43,739 shares — an estimated $2.48M sold.

Magnetar Financial first reported a position in ATMU in Q4 2024 and held it in 4 quarters. The position peaked at $2.48M in Q1 2026. 336 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

  • Magnetar Financial reported no remaining Atmus Filtration Technologies position as of Q2 2026 after selling out during the quarter.
  • Magnetar Financial sold 43,739 Atmus Filtration Technologies shares in Q2 2026, an estimated $2.48M.
  • Magnetar Financial first reported a position in Atmus Filtration Technologies in Q4 2024 and held it in 4 quarters.
  • Magnetar Financial's Atmus Filtration Technologies position peaked at $2.48M in Q1 2026.
  • 336 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.