Atmus Filtration Technologies
ATMU
277 hedge funds and large institutions have $3.06B invested in Atmus Filtration Technologies in 2025 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 101 increasing their positions, 98 reducing their positions, and 44 closing their positions.
1,601% more call options, than puts
Call options by funds: $11.4M | Put options by funds: $671K
14% more funds holding in top 10
Funds holding in top 10: 7 → 8 (+1)
3% more repeat investments, than reductions
Existing positions increased: 101 | Existing positions reduced: 98
0.02% more ownership
Funds ownership: 100.66% → 100.67% (+0.02%)
2% less capital inflows, than outflows
Capital inflows: $405M | Capital outflows: $412M
4% less funds holding
Funds holding: 288 → 277 (-11)
20% less first-time investments, than exits
New positions opened: 35 | Existing positions closed: 44
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Eminence Capital
New York
|
+$46M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$41M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$39.1M |
| 4 |
William Blair Investment Management
Chicago,
Illinois
|
+$33.9M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
+$33.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$84.4M |
| 2 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$47M |
| 3 |
Nuveen
Charlotte,
North Carolina
|
-$20.6M |
| 4 |
Parsifal Capital Management
Greenwich,
Connecticut
|
-$20.2M |
| 5 |
Bayberry Capital Partners
New York
|
-$17.7M |
ATMU Hedge Fund Activity: Q1 2025 in Review
277 of the 7,489 institutional investors tracked by Wall St. Rank reported a position in Atmus Filtration Technologies (ATMU) for Q1 2025, worth a combined $3.06B — down 6.5% from $3.28B a quarter earlier.
Sellers outnumbered buyers: 44 funds closed out of ATMU and 35 opened new positions — a net loss of 9 holders — while 98 trimmed existing stakes and 101 added.
The largest buyer was Eminence Capital, adding an estimated $46M. The largest seller was T. Rowe Price Associates, cutting an estimated $84.4M.
- 277 institutional investors held Atmus Filtration Technologies (ATMU) as of Q1 2025, down from 288 in Q4 2024.
- Funds reported $3.06B of Atmus Filtration Technologies stock for Q1 2025, down 6.5% quarter-over-quarter.
- 35 funds opened new Atmus Filtration Technologies positions in Q1 2025 and 44 closed out, a net change of -9 holders.
- The largest Atmus Filtration Technologies buyer in Q1 2025 was Eminence Capital, an estimated $46M added.
- The largest Atmus Filtration Technologies seller in Q1 2025 was T. Rowe Price Associates, an estimated $84.4M sold.
Based on aggregated 13F filings for Q1 2025.