Channing Capital Management
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Channing Capital Management’s Atmus Filtration Technologies ATMU Stock Holding History

Channing Capital Management’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
Q3 		$55.7M Sell
1,282,339
-443,617
-26% -$21.8M 1.46% 35
2026
Q2 		$88M Buy
1,725,956
+340,032
+25% +$18.5M 2.03% 26
2026
Q1 		$78.7M Sell
1,385,924
-242,969
-15% -$14.4M 2.01% 21
2025
Q4 		$84.6M Sell
1,628,893
-86,122
-5% -$4.17M 2.17% 16
2025
Q3 		$77.3M Buy
1,715,015
+1,662,931
+3,193% +$69.8M 2.04% 20
2025
Q2 		$1.9M Buy
+52,084
New +$1.86M 0.05% 101

Other funds holding ATMU

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $148B AUM 31.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

Channing Capital Management's ATMU Position: Q3 2026 in Review

Channing Capital Management reduced its Atmus Filtration Technologies (ATMU) stake by 26% in Q3 2026, selling an estimated $21.8M and leaving 1,282,339 shares worth $55.7M. The position accounts for 1.46% of the portfolio, ranked #35.

Channing Capital Management first reported a position in ATMU in Q2 2025 and has held it in 6 quarters since. The position peaked at $88M in Q2 2026. 252 funds tracked by Wall St. Rank hold ATMU as of Q3 2026.

  • Channing Capital Management held 1,282,339 shares of Atmus Filtration Technologies worth $55.7M as of Q3 2026.
  • Channing Capital Management sold 443,617 Atmus Filtration Technologies shares in Q3 2026, an estimated $21.8M.
  • Atmus Filtration Technologies made up 1.46% of Channing Capital Management's portfolio in Q3 2026, its #35 holding.
  • Channing Capital Management first reported a position in Atmus Filtration Technologies in Q2 2025 and has held it in 6 quarters since.
  • Channing Capital Management's Atmus Filtration Technologies position peaked at $88M in Q2 2026.
  • 252 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q3 2026.

Based on Channing Capital Management's 13F filing for Q3 2026, filed 2 Nov 2026.