Main Street Research LLC's ownership history for PH

Main Street Research LLC currently holds 292 shares with a market value of $256.7K. It started holding PH on 2024-09-30. At its peak, it held 54.9K shares on 2025-03-31. Its highest holding value was $33.9M on 2024-12-31. At its lowest, it held 292 shares on 2025-12-31, with a value of $256.7K on 2025-12-31. In the recent 180 days, Main Street Research LLC has decreased its shares by 53.1K.