Richmond Investment Services, LLC's ownership history for AMPX

Richmond Investment Services, LLC currently holds 14.8K shares with a market value of $155.7K. It started holding AMPX on 2025-09-30. At its peak, it held 14.8K shares on 2025-09-30. Its highest holding value was $155.7K on 2025-09-30. At its lowest, it held 14.8K shares on 2025-09-30, with a value of $155.7K on 2025-09-30.