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Atmus Filtration Technologies
ATMU

351 hedge funds and large institutions have $4.75B invested in Atmus Filtration Technologies in 2026 Q1 according to their latest regulatory filings, with 73 funds opening new positions, 125 increasing their positions, 103 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed

428% more call options, than puts

Call options by funds: $1.8M | Put options by funds: $341K

170% more first-time investments, than exits

New positions opened: 73 | Existing positions closed: 27

21% more repeat investments, than reductions

Existing positions increased: 125 | Existing positions reduced: 103

13% more funds holding

Funds holding: 311 → 351 (+40)

10% more capital invested

Capital invested by funds: $4.34B → $4.75B (+$412M)

0.11% more ownership

Funds ownership: 102.49% → 102.6% (+0.11%)

29% less funds holding in top 10

Funds holding in top 10: 7 → 5 (-2)

Holders
351
Holders Change
+40
Holders Change %
+12.86%
% of All Funds
4.32%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.06%
New
73
Increased
125
Reduced
103
Closed
27
Calls
$1.8M
Puts
$341K
Net Calls
+$1.46M
Net Calls Change
-$17.6M

Top Buyers

Rank Fund Capital Flow
1
Neuberger Berman Group
Neuberger Berman Group
New York
+$69.1M
2
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$39M
3
Invesco
Invesco
Georgia
+$36.4M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$30.6M
5
Jane Street
Jane Street
New York
+$24.6M

Top Sellers

Rank Fund Capital Flow
1
EC
Eminence Capital
New York
-$150M
2
Allspring Global Investments
Allspring Global Investments
North Carolina
-$28.6M
3
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$26.7M
4
PCM
Parsifal Capital Management
Connecticut
-$26.3M
5
Morgan Stanley
Morgan Stanley
New York
-$22.8M
Name Holding Trade Value Shares
Change 		Change in
Stake
FFO
326
Fortitude Family Office
Arizona
$1.93K +$1.06K +18 +113%
KFAS
327
Keating Financial Advisory Services
Kansas
$1.76K +$59 +1 +3%
IA
328
IFP Advisors
Florida
$1.36K – – –
SWM
329
SHP Wealth Management
Massachusetts
$1.36K +$1.42K +24 New
JWM
330
JPL Wealth Management
Colorado
$1.14K +$1.18K +20 New
EP
331
Essential Partners
California
$1.08K – – –
CIAM
332
Caitong International Asset Management
Hong Kong
$965 +$709 +12 +240%
ZBNA
333
Zions Bancorporation, National Association
Utah
$738 +$768 +13 New
HWA
334
HHM Wealth Advisors
Tennessee
$682 – – –
NL
335
NVWM LLC
Pennsylvania
$681 – – –
TCM
336
Triumph Capital Management
Colorado
$681 – – –
BIA
337
Bell Investment Advisors
California
$625 – – –
BHWM
338
Bay Harbor Wealth Management
Maryland
$624 +$236 +4 +57%
SPIA
339
Steward Partners Investment Advisory
New York
$568 – – –
SIC
340
SJS Investment Consulting
Ohio
$568 +$236 +4 +67%
DPW
341
DiNuzzo Private Wealth
Pennsylvania
$341 – – –
RWM
342
Rialto Wealth Management
New York
$341 – – –
VWM
343
Vermillion Wealth Management
Minnesota
$341 +$355 +6 New
HI
344
Harbour Investments
Wisconsin
$310 +$295 +5 New
PTC
345
Private Trust Company
Ohio
$284 – – –
HIA
346
HFM Investment Advisors
New Jersey
$284 +$118 +2 +67%
TWD
347
True Wealth Design
Ohio
$228 – – –
PWPS
348
Pinnacle Wealth Planning Services
Ohio
$170 +$177 +3 New
DF
349
Dunhill Financial
United Kingdom
$85 – – –
SS
350
SBI Securities
Japan
$57 – – –
12 13
14
15 16

ATMU Hedge Fund Activity: Q1 2026 in Review

351 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in Atmus Filtration Technologies (ATMU) for Q1 2026, worth a combined $4.75B — up 9.5% from $4.34B a quarter earlier.

Buyers outnumbered sellers: 73 funds opened new ATMU positions and 27 closed out — a net gain of 46 holders — while 125 added to existing stakes and 103 trimmed.

The largest buyer was Neuberger Berman Group, adding an estimated $69.1M. The largest seller was Eminence Capital, cutting an estimated $150M.

  • 351 institutional investors held Atmus Filtration Technologies (ATMU) as of Q1 2026, up from 311 in Q4 2025.
  • Funds reported $4.75B of Atmus Filtration Technologies stock for Q1 2026, up 9.5% quarter-over-quarter.
  • 73 funds opened new Atmus Filtration Technologies positions in Q1 2026 and 27 closed out, a net change of +46 holders.
  • The largest Atmus Filtration Technologies buyer in Q1 2026 was Neuberger Berman Group, an estimated $69.1M added.
  • The largest Atmus Filtration Technologies seller in Q1 2026 was Eminence Capital, an estimated $150M sold.

Based on aggregated 13F filings for Q1 2026.