Calamos Advisors LLC's ownership history for AMPX

Calamos Advisors LLC currently holds 364.5K shares with a market value of $6.1M. It started holding AMPX on 2025-09-30. At its peak, it held 364.5K shares on 2026-03-31. Its highest holding value was $6.1M on 2026-03-31. At its lowest, it held 119.0K shares on 2025-12-31, with a value of $939.2K on 2025-12-31. In the recent 180 days, Calamos Advisors LLC has increased its shares by 193.5K.