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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
30 Jun 2023
the date the book describes
Filed
12 Sep 2023
latest of these filings; the earliest 15 Aug 2023
Managers listing it
2
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q1 2023 and Q2 2023; 0 listed it in both
Shares listed
55,000
combined, among listed positions
Reported value
$1.2m
combined, at the quarter end

Managers listing ATMU in Q2 2023

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

2 of 2 holders

ActionFiling
Davidson Kempner Capital Management LP30,000$659kunder 0.1%Newnew12 Sep 2023 (the filing on sec.gov)
Rokos Capital Management LLP25,000$558kunder 0.1%Newnew15 Aug 2023 (the filing on sec.gov)

Largest increases and reductions, by shares

There is no earlier quarter on file to compare with.

Increases

Reductions

No reduction among listed positions.

New positions and exits

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

New (2)

Exited (0)

No exit shown by a manager’s own filing.

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 →