CIEN Institutional Ownership
Top institutional (13F) holders of CIEN and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
47
Institutional value
$50.79B
Top holder
FMR LLC
Top holders
| Holder | Filed | Value |
|---|---|---|
| FMR LLCinvestment advisor | Aug 13, 2026 | $9.38B |
| BlackRock, Inc.holding company | Aug 7, 2026 | $6.24B |
| JPMORGAN CHASE & COinvestment advisor | Aug 12, 2026 | $5.37B |
| Vanguard Capital Managementhedge fund | Aug 13, 2026 | $4.53B |
| Vanguard Portfolio Managementhedge fund | Aug 13, 2026 | $3.77B |
| STATE STREET CORPinvestment advisor | Aug 7, 2026 | $3.28B |
| PRICE T ROWE ASSOCIATES INC /MD/investment advisor | Aug 14, 2026 | $2.00B |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $1.65B |
| JANE STREET GROUP, LLCholding company | Aug 14, 2026 | $1.06B |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | Aug 14, 2026 | $959.11M |
| BANK OF AMERICA CORP /DE/investment advisor | Aug 14, 2026 | $877.41M |
| Capital World Investorsinvestment advisor | Aug 12, 2026 | $861.23M |
| Invesco Ltd.investment advisor | Aug 14, 2026 | $848.77M |
| Norges Bankother | Aug 12, 2026 | $835.50M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | Aug 13, 2026 | $822.68M |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $801.88M |
| CITADEL ADVISORS LLCinvestment advisor | Aug 14, 2026 | $651.74M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | Aug 14, 2026 | $612.71M |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $597.47M |
| Dimensional Fund Advisors LPhedge fund | Aug 11, 2026 | $565.63M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $507.24M |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $483.99M |
| WELLS FARGO & COMPANY/MNinvestment advisor | Aug 14, 2026 | $452.62M |
| Bank of New York Mellon Corpholding company | Aug 6, 2026 | $404.95M |
| Capital Research Global Investorsinvestment advisor | Aug 12, 2026 | $322.08M |
Never miss a CIEN filing.
Get an email when CIEN files its next 8-K, Form 4, 10-K or 10-Q with the SEC. Free, no account needed.
Free foreverNo account requiredOne-click unsubscribe
Source: SEC EDGAR Schedule 13D / 13G and 13F filings.