Atmus Filtration Technologies
ATMU
278 hedge funds and large institutions have $3.04B invested in Atmus Filtration Technologies in 2025 Q2 according to their latest regulatory filings, with 36 funds opening new positions, 96 increasing their positions, 105 reducing their positions, and 32 closing their positions.
26,692% more call options, than puts
Call options by funds: $6.7M | Put options by funds: $25K
13% more first-time investments, than exits
New positions opened: 36 | Existing positions closed: 32
1% more funds holding
Funds holding: 276 → 278 (+2)
0.2% more ownership
Funds ownership: 100.66% → 100.86% (+0.2%)
0% more funds holding in top 10
Funds holding in top 10: 8 → 8 (0)
1% less capital invested
Capital invested by funds: $3.06B → $3.04B (-$26.6M)
9% less repeat investments, than reductions
Existing positions increased: 96 | Existing positions reduced: 105
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$29.6M |
| 2 |
EC
Eminence Capital
New York
|
+$24.7M |
| 3 |
HRCM
Hawk Ridge Capital Management
Los Angeles,
California
|
+$15.5M |
| 4 |
First Trust Advisors
Wheaton,
Illinois
|
+$15.5M |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$14.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$37.6M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
-$26.2M |
| 3 |
Fidelity International
Hamilton,
Bermuda
|
-$20.3M |
| 4 |
N
Nuveen
Charlotte,
North Carolina
|
-$16.7M |
| 5 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$14.6M |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
UIC
301
Uniplan Investment Counsel
Milwaukee,
Wisconsin
| – | -$3.27K | -89 | Closed |
|
|
CCM
302
Coldstream Capital Management
Bellevue,
Washington
| – | -$2.2K | -60 | Closed |
|
|
TPCW
303
TD Private Client Wealth
New York
| – | -$1.51K | -41 | Closed |
|
|
MPWT
304
MassMutual Private Wealth & Trust
Windsor,
Connecticut
| – | -$1.14K | -31 | Closed |
|
|
SC
305
Stephens Consulting
Flint,
Michigan
| – | -$1.1K | -30 | Closed |
|
306
Amundi
Paris,
France
| – | -$765 | -22 | Closed |
|
|
CWC
307
Carolinas Wealth Consulting
Charlotte,
North Carolina
| – | -$441 | -12 | Closed |
|
|
GFPC
308
Global Financial Private Client
Sarasota,
Florida
| – | -$331 | -9 | Closed |
|
ATMU Hedge Fund Activity: Q2 2025 in Review
278 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Atmus Filtration Technologies (ATMU) for Q2 2025, worth a combined $3.04B — down 0.87% from $3.06B a quarter earlier.
Buyers outnumbered sellers: 36 funds opened new ATMU positions and 32 closed out — a net gain of 4 holders — while 96 added to existing stakes and 105 trimmed.
The largest buyer was Royal Bank of Canada, adding an estimated $29.6M. The largest seller was Citadel Advisors, cutting an estimated $37.6M.
- 278 institutional investors held Atmus Filtration Technologies (ATMU) as of Q2 2025, up from 276 in Q1 2025.
- Funds reported $3.04B of Atmus Filtration Technologies stock for Q2 2025, down 0.87% quarter-over-quarter.
- 36 funds opened new Atmus Filtration Technologies positions in Q2 2025 and 32 closed out, a net change of +4 holders.
- The largest Atmus Filtration Technologies buyer in Q2 2025 was Royal Bank of Canada, an estimated $29.6M added.
- The largest Atmus Filtration Technologies seller in Q2 2025 was Citadel Advisors, an estimated $37.6M sold.
Based on aggregated 13F filings for Q2 2025.