SEC 13F Intelligence

Marathon Partners Equity Management, LLC / ATMU

Marathon Partners Equity Management, LLC’s Atmus Filtration Technologie Position

Does Marathon Partners Equity Management, LLC own Atmus Filtration Technologie (ATMU)? Yes — 75.0K shares worth $4M (+4.82% of its 13F portfolio) as of Q1 2026, down from 80.0K shares the prior filed quarter.

Position Value
$4M
Q1 2026
Shares
75.0K
% of Portfolio
+4.82%
Quarters Held
6
currently held

Position History ATMU

Reported value by quarter
Q4 ’24: $6MQ4 ’24Q1 ’25: $5MQ1 ’25Q2 ’25: $5MQ2 ’25Q3 ’25: $5MQ3 ’25Q4 ’25: $4MQ4 ’25Q1 ’26: $4MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 202675.0K$4M+4.82%
Q4 202580.0K$4M+4.13%
Q3 2025112.5K$5M+3.65%
Q2 2025137.5K$5M+4.35%
Q1 2025140.0K$5M+5.27%
Q4 2024145.0K$6M+4.94%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Marathon Partners Equity Management, LLC’s full portfolio or all institutional holders of ATMU.