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ATMU in the 13F filings

Atmus Filtration Technologie · CUSIP 04956D107

Sector · Consumer discretionary
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q2 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 6 listed it in both
Shares listed
20,164,310
combined, among listed positions
Reported value
$1.0bn
combined, at the quarter end

Among the 92 comparable managers: 19 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,472,398.

Managers listing ATMU in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

29 of 29 holders

ActionFiling
T. Rowe Price Associates Inc4,677,884$243munder 0.1%Added+596,55317 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,419,785$229munder 0.1%Added+917,19417 Feb 2026 (the filing on sec.gov)
Invesco Ltd2,728,470$142munder 0.1%Added+504,64719 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP1,602,495$83munder 0.1%Trimmed-616,37517 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.1,443,969$75munder 0.1%Trimmed-324,50517 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd1,369,325$71munder 0.1%Added+476,42917 Feb 2026 (the filing on sec.gov)
MFS Investment Management877,401$46munder 0.1%Trimmed-215,93622 Jan 2026 (the filing on sec.gov)
Marshall Wace LLP564,727$29munder 0.1%Added+87,19313 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP443,994$23munder 0.1%Added+126,27417 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC366,118$19m0.08%Newnew17 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP340,191$18munder 0.1%Added+312,19013 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC300,334$16m0.05%Added+64,30817 Feb 2026 (the filing on sec.gov)
Woodline Partners LP257,222$13m0.05%Added+50,06917 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC197,261$10munder 0.1%Added+119,97917 Feb 2026 (the filing on sec.gov)
Millennium Management LLC117,797$6.1munder 0.1%Trimmed-22,07217 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC91,553$4.8munder 0.1%Added+13,06517 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP88,481$4.6munder 0.1%Added+9117 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC67,992$3.5munder 0.1%Added+12,70413 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC47,400$2.5munder 0.1%Trimmed-166,70012 Feb 2026 (the filing on sec.gov)
PDT Partners LLC45,616$2.4m0.15%Trimmed-2,50017 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC35,513$1.8munder 0.1%Newnew10 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP23,492$1.2munder 0.1%Trimmed-153,91517 Feb 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP22,100$1.1munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC10,136$526kunder 0.1%Trimmed-84,18812 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP7,201$374kunder 0.1%Trimmed-91,05017 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (6)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
9 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

051015Q2 2023Q1 2024Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ATMU by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20232$1.2mn.a.n.a.
Q4 20231$585k10
Q1 202410$287m100
Q2 20248$154m54
Q3 20249$266m37
Q4 20249$343m53
Q1 20256$152m42
Q2 20258$191m53
Q3 20256$365m24
Q4 20257$410m1914
Q1 202612$660m1911
Q2 20266$504m1021

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ATMU and AMZN →ATMU and TSLA →ATMU and HD →Choose a stock to compare with ATMU →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ATMU, latest filings →Back to the 13F Explorer →