BlackRock, Inc.'s ownership history for CIEN

BlackRock, Inc. currently holds 13.4M shares with a market value of $5.2B. It started holding CIEN on 2024-09-30. At its peak, it held 17.1M shares on 2024-12-31. Its highest holding value was $5.2B on 2026-03-31. At its lowest, it held 13.4M shares on 2026-03-31, with a value of $994.8M on 2024-09-30. In the recent 180 days, BlackRock, Inc. has decreased its shares by 1.2M. In the recent year, BlackRock, Inc. has decreased its shares by 3.7M.