Main Street Research LLC's ownership history for XBI

Main Street Research LLC currently holds 567.5K shares with a market value of $72.5M. It started holding XBI on 2025-12-31. At its peak, it held 567.5K shares on 2026-03-31. Its highest holding value was $72.5M on 2026-03-31. At its lowest, it held 360.5K shares on 2025-12-31, with a value of $44.0M on 2025-12-31.