AMERICAN CENTURY COMPANIES INC's ownership history for CIEN

AMERICAN CENTURY COMPANIES INC currently holds 535.8K shares with a market value of $208.0M. It started holding CIEN on 2024-09-30. At its peak, it held 585.7K shares on 2025-09-30. Its highest holding value was $208.0M on 2026-03-31. At its lowest, it held 44.0K shares on 2024-09-30, with a value of $2.7M on 2024-09-30. In the recent 180 days, AMERICAN CENTURY COMPANIES INC has decreased its shares by 49.9K. In the recent year, AMERICAN CENTURY COMPANIES INC has increased its shares by 486.9K.