Mainstream Capital Management LLC's ownership history for IBKR

Mainstream Capital Management LLC currently holds 19.4K shares with a market value of $1.3M. It started holding IBKR on 2025-03-31. At its peak, it held 19.4K shares on 2025-09-30. Its highest holding value was $1.3M on 2025-09-30. At its lowest, it held 4.3K shares on 2025-03-31, with a value of $712.2K on 2025-03-31. In the recent 180 days, Mainstream Capital Management LLC has increased its shares by 15.1K.