Cornerstone Advisory, LLC's ownership history for AMT

Cornerstone Advisory, LLC currently holds 2.9K shares with a market value of $507.9K. It started holding AMT on 2024-09-30. At its peak, it held 3.2K shares on 2025-09-30. Its highest holding value was $720.7K on 2025-03-31. At its lowest, it held 2.9K shares on 2025-12-31, with a value of $507.9K on 2025-12-31. In the recent 180 days, Cornerstone Advisory, LLC has decreased its shares by 324. In the recent year, Cornerstone Advisory, LLC has decreased its shares by 231.