OBERWEIS ASSET MANAGEMENT INC/'s ownership history for ECG

OBERWEIS ASSET MANAGEMENT INC/ currently holds 326.5K shares with a market value of $38.6M. It started holding ECG on 2025-06-30. At its peak, it held 326.5K shares on 2026-03-31. Its highest holding value was $38.6M on 2026-03-31. At its lowest, it held 230.1K shares on 2025-06-30, with a value of $14.6M on 2025-06-30. In the recent 180 days, OBERWEIS ASSET MANAGEMENT INC/ has increased its shares by 66.7K.