Western Standard LLC's ownership history for IOSP

Western Standard LLC currently holds 268.4K shares with a market value of $20.5M. It started holding IOSP on 2025-09-30. At its peak, it held 268.4K shares on 2025-12-31. Its highest holding value was $20.5M on 2025-12-31. At its lowest, it held 27.0K shares on 2025-09-30, with a value of $2.1M on 2025-09-30.