SEC 13F Intelligence

Marathon Partners Equity Management, LLC / ATI

Marathon Partners Equity Management, LLC’s Ati Inc Position

Does Marathon Partners Equity Management, LLC own Ati Inc (ATI)? Yes — 17.5K shares worth $3M (+2.88% of its 13F portfolio) as of Q1 2026, down from 20.0K shares the prior filed quarter.

Position Value
$3M
Q1 2026
Shares
17.5K
% of Portfolio
+2.88%
Quarters Held
3
currently held

Position History ATI

Reported value by quarter
Q3 ’25: $2MQ3 ’25Q4 ’25: $2MQ4 ’25Q1 ’26: $3MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 202617.5K$3M+2.88%
Q4 202520.0K$2M+2.28%
Q3 202527.5K$2M+1.61%

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 ATI.