CIEN

CIENA CORP

Telephone & Telegraph Apparatus · SIC 3661CIK 936395Held by 12 tracked managersEDGAR filings ↗10-K/10-Q ↗

Shares held by quarter · Q1 2026–Q2 2026 (2 quarters stored)

Capital World Investors

Atreides Management

Capital Research Global Investors

Jericho Capital Asset Management

Renaissance Technologies

Stored snapshots only: quarters before the earliest stored filing are not shown, and the first stored quarter is not the start of any position.

ManagerLatest sharesHistory