Quantum Portfolio Management LLC's ownership history for ACM

Quantum Portfolio Management LLC currently holds 15.5K shares with a market value of $2.0M. It started holding ACM on 2024-09-30. At its peak, it held 15.5K shares on 2025-09-30. Its highest holding value was $2.0M on 2025-09-30. At its lowest, it held 9.3K shares on 2024-09-30, with a value of $933.7K on 2025-03-31. In the recent 180 days, Quantum Portfolio Management LLC has increased its shares by 5.4K. In the recent year, Quantum Portfolio Management LLC has increased its shares by 6.2K.