OBERWEIS ASSET MANAGEMENT INC/'s ownership history for AMSC

OBERWEIS ASSET MANAGEMENT INC/ currently holds 665.7K shares with a market value of $39.5M. It started holding AMSC on 2024-09-30. At its peak, it held 668.2K shares on 2025-03-31. Its highest holding value was $39.5M on 2025-09-30. At its lowest, it held 664.4K shares on 2024-09-30, with a value of $12.1M on 2025-03-31. In the recent 180 days, OBERWEIS ASSET MANAGEMENT INC/ has decreased its shares by 2.5K. In the recent year, OBERWEIS ASSET MANAGEMENT INC/ has increased its shares by 1.3K.