OBERWEIS ASSET MANAGEMENT INC/'s ownership history for ZWS

OBERWEIS ASSET MANAGEMENT INC/ currently holds 352.2K shares with a market value of $15.8M. It started holding ZWS on 2025-09-30. At its peak, it held 352.2K shares on 2026-03-31. Its highest holding value was $15.8M on 2026-03-31. At its lowest, it held 266.0K shares on 2025-09-30, with a value of $12.4M on 2025-12-31. In the recent 180 days, OBERWEIS ASSET MANAGEMENT INC/ has increased its shares by 86.2K.