Portolan Capital Management, LLC's ownership history for CIEN

Portolan Capital Management, LLC currently holds 18.5K shares with a market value of $7.2M. It started holding CIEN on 2025-09-30. At its peak, it held 88.8K shares on 2025-09-30. Its highest holding value was $13.2M on 2025-12-31. At its lowest, it held 18.5K shares on 2026-03-31, with a value of $7.2M on 2026-03-31. In the recent 180 days, Portolan Capital Management, LLC has decreased its shares by 70.3K.