Richmond Investment Services, LLC's ownership history for AMPX

Richmond Investment Services, LLC currently holds 40.0K shares with a market value of $674.3K. It started holding AMPX on 2025-09-30. At its peak, it held 40.0K shares on 2026-03-31. Its highest holding value was $674.3K on 2026-03-31. At its lowest, it held 10.9K shares on 2025-12-31, with a value of $85.7K on 2025-12-31. In the recent 180 days, Richmond Investment Services, LLC has increased its shares by 25.2K.