Granahan Investment Management, LLC's ownership history for ADTN

Granahan Investment Management, LLC currently holds 582.5K shares with a market value of $5.5M. It started holding ADTN on 2025-03-31. At its peak, it held 582.5K shares on 2025-09-30. Its highest holding value was $5.5M on 2025-09-30. At its lowest, it held 36.1K shares on 2025-03-31, with a value of $314.7K on 2025-03-31. In the recent 180 days, Granahan Investment Management, LLC has increased its shares by 546.4K.