SIMPLEX TRADING, LLC's ownership history for MRK

SIMPLEX TRADING, LLC currently holds 50.9K shares with a market value of $4.3K. It started holding MRK on 2024-12-31. At its peak, it held 50.9K shares on 2025-09-30. Its highest holding value was $4.3K on 2025-09-30. At its lowest, it held 22.0K shares on 2025-06-30, with a value of $1.7K on 2025-06-30. In the recent 180 days, SIMPLEX TRADING, LLC has increased its shares by 9.6K.