OBERWEIS ASSET MANAGEMENT INC/'s ownership history for OSIS

OBERWEIS ASSET MANAGEMENT INC/ currently holds 101.4K shares with a market value of $25.3M. It started holding OSIS on 2024-09-30. At its peak, it held 109.0K shares on 2025-06-30. Its highest holding value was $25.3M on 2025-09-30. At its lowest, it held 69.2K shares on 2024-09-30, with a value of $10.5M on 2024-09-30. In the recent 180 days, OBERWEIS ASSET MANAGEMENT INC/ has increased its shares by 1.0K. In the recent year, OBERWEIS ASSET MANAGEMENT INC/ has increased its shares by 32.2K.