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ATMU · Atmus Filtration Technologies Inc. · Holdings

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Market Cap
$3.71B
Shares
81.60M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 333
Total Value: $4,462,333,845
Total Shares: 87,513,959
Showing 1–100 of 336 holdings by value · page 1 of 4

Institutional Ownership Trend

13 quarters

Holder Concentration

Across 333 13F filers · Δ vs Mar 31, 2026
Top Holder
14.2%
Sep 2023 → Jun 2026 · range 8.1% – 14.2%
+6.0 pts
Top 5
35.6%
Sep 2023 → Jun 2026 · range 28.1% – 43.2%
+7.5 pts
Top 10
52.8%
Sep 2023 → Jun 2026 · range 40.6% – 62.7%
+8.7 pts
HHI
423
Sep 2023 → Jun 2026 · range 269 – 517
Broadly held+147

Quarterly Activity

vs Mar 31, 2026
New
59
Increased
119
Decreased
105
Sold Out
77
Unchanged
50
Holder count: -18
Institutional value: -6.0%
Shares held: +4.6%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 336
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1921963 CUSIP 04956D107 13F (30d) 11 filings 11 filers Visit website Investor relations