Port Capital LLC's ownership history for ATMU

Port Capital LLC currently holds 908.7K shares with a market value of $51.6M. It started holding ATMU on 2025-09-30. At its peak, it held 908.7K shares on 2026-03-31. Its highest holding value was $51.6M on 2026-03-31. At its lowest, it held 430.5K shares on 2025-09-30, with a value of $19.4M on 2025-09-30. In the recent 180 days, Port Capital LLC has increased its shares by 478.2K.