OPPENHEIMER & CO INC's ownership history for AMPX

OPPENHEIMER & CO INC currently holds 412.5K shares with a market value of $7.0M. It started holding AMPX on 2024-12-31. At its peak, it held 491.4K shares on 2025-03-31. Its highest holding value was $7.0M on 2026-03-31. At its lowest, it held 117.2K shares on 2024-12-31, with a value of $328.0K on 2024-12-31. In the recent 180 days, OPPENHEIMER & CO INC has increased its shares by 113.2K. In the recent year, OPPENHEIMER & CO INC has decreased its shares by 78.9K.