T. Rowe Price Investment Management, Inc.'s ownership history for CIEN

T. Rowe Price Investment Management, Inc. currently holds 418.5K shares with a market value of $162.5K. It started holding CIEN on 2025-09-30. At its peak, it held 418.5K shares on 2026-03-31. Its highest holding value was $162.5K on 2026-03-31. At its lowest, it held 64 shares on 2025-09-30, with a value of $10 on 2025-09-30. In the recent 180 days, T. Rowe Price Investment Management, Inc. has increased its shares by 418.4K.