OBERWEIS ASSET MANAGEMENT INC/'s ownership history for AMPX

OBERWEIS ASSET MANAGEMENT INC/ currently holds 585.0K shares with a market value of $9.9M. It started holding AMPX on 2026-03-31. At its peak, it held 585.0K shares on 2026-03-31. Its highest holding value was $9.9M on 2026-03-31. At its lowest, it held 585.0K shares on 2026-03-31, with a value of $9.9M on 2026-03-31.