MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s ownership history for CIEN

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ currently holds 582.7K shares with a market value of $226.2M. It started holding CIEN on 2025-09-30. At its peak, it held 607.4K shares on 2025-12-31. Its highest holding value was $226.2M on 2026-03-31. At its lowest, it held 161.6K shares on 2025-09-30, with a value of $23.5M on 2025-09-30. In the recent 180 days, MASSACHUSETTS FINANCIAL SERVICES CO /MA/ has increased its shares by 421.0K.