CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's ownership history for CIEN

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM currently holds 209.7K shares with a market value of $81.4M. It started holding CIEN on 2024-09-30. At its peak, it held 214.8K shares on 2025-12-31. Its highest holding value was $81.4M on 2026-03-31. At its lowest, it held 133.4K shares on 2025-06-30, with a value of $8.1M on 2025-03-31. In the recent 180 days, CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM has increased its shares by 76.3K. In the recent year, CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM has increased its shares by 76.1K.