Optiver Holding
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Optiver Holding’s Atmus Filtration Technologies ATMU Stock Holding History

Optiver Holding’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 		$36.9K Buy
724
+318
+78% +$17.3K ﹤0.01% 1257
2026
Q1 		$23K Buy
406
+34
+9% +$2.01K ﹤0.01% 1075
2025
Q4 		$19.3K Sell
372
-158
-30% -$7.65K ﹤0.01% 1033
2025
Q3 		$23.9K Sell
530
-65
-11% -$2.73K ﹤0.01% 925
2025
Q2 		$21.7K Buy
595
+106
+22% +$3.78K ﹤0.01% 811
2025
Q1 		$18K Buy
+489
New +$19.3K ﹤0.01% 734

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

Optiver Holding's ATMU Position: Q2 2026 in Review

Optiver Holding increased its Atmus Filtration Technologies (ATMU) stake by 78% in Q2 2026, buying an estimated $17.3K and bringing the position to 724 shares worth $36.9K. The position accounts for ﹤0.01% of the portfolio, ranked #1257.

Optiver Holding first reported a position in ATMU in Q1 2025 and has held it in 6 quarters since. 335 funds tracked by Wall St. Rank hold ATMU as of Q2 2026.

  • Optiver Holding held 724 shares of Atmus Filtration Technologies worth $36.9K as of Q2 2026.
  • Optiver Holding bought 318 Atmus Filtration Technologies shares in Q2 2026, an estimated $17.3K.
  • Atmus Filtration Technologies made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1257 holding.
  • Optiver Holding first reported a position in Atmus Filtration Technologies in Q1 2025 and has held it in 6 quarters since.
  • 335 funds tracked by Wall St. Rank held Atmus Filtration Technologies as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.