Round Rock Advisors, LLC's ownership history for SDSI

Round Rock Advisors, LLC currently holds 237.9K shares with a market value of $12.3M. It started holding SDSI on 2025-09-30. At its peak, it held 237.9K shares on 2025-12-31. Its highest holding value was $12.3M on 2025-12-31. At its lowest, it held 167.3K shares on 2025-09-30, with a value of $8.6M on 2025-09-30.