CIEN Institutional Ownership
Top institutional (13F) holders of CIEN and 5%+ (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
60
Institutional value
$51.1B
Top holder
FMR LLC
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| FMR LLCinvestment advisor | 13.5% | Aug 13, 2026 | $9.38B |
| BlackRock, Inc.holding company | 9.0% | Aug 7, 2026 | $6.24B |
| JPMORGAN CHASE & COholding company | 7.9% | Aug 12, 2026 | $5.37B |
| Vanguard Capital Managementinvestment advisor | 6.5% | Aug 13, 2026 | $4.53B |
| Vanguard Portfolio Managementinvestment advisor | 5.4% | Aug 13, 2026 | $3.77B |
| STATE STREET CORPORATIONholding company | 4.7% | Sep 22, 2026 | $3.28B |
| T. Rowe Price Associates, Inc.investment advisor | 2.9% | Aug 14, 2026 | $2B |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 2.4% | Nov 6, 2026 | $1.18B |
| JANE STREET GROUP, LLCholding company | 1.5% | Aug 14, 2026 | $1.06B |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | 1.4% | Aug 14, 2026 | $959.11M |
| BANK OF AMERICA CORP /DE/holding company | 1.3% | Aug 14, 2026 | $877.41M |
| Capital World Investorsinvestment advisor | 1.2% | Aug 12, 2026 | $861.23M |
| Invesco Ltd.holding company | 1.2% | Aug 14, 2026 | $848.77M |
| Norges Bankother | 1.2% | Aug 12, 2026 | $835.5M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | 1.2% | Aug 13, 2026 | $822.68M |
| MORGAN STANLEYholding company | 1.2% | Aug 13, 2026 | $801.88M |
| CITADEL ADVISORS LLCinvestment advisor | 0.9% | Sep 1, 2026 | $651.74M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 0.9% | Aug 14, 2026 | $612.71M |
| NORTHERN TRUST CORPinvestment advisor | 0.9% | Aug 13, 2026 | $597.47M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 0.7% | Aug 14, 2026 | $507.24M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 0.7% | Aug 14, 2026 | $483.99M |
| WELLS FARGO & COMPANY/MNinvestment advisor | 0.7% | Aug 14, 2026 | $452.62M |
| Dimensional Fund Advisors LPinvestment advisor | 0.8% | Nov 4, 2026 | $399.47M |
| Atreides Management, LPinvestment advisor | 0.5% | Aug 14, 2026 | $337.76M |
| Capital Research Global Investorsinvestment advisor | 0.5% | Aug 12, 2026 | $322.08M |
5%+ holders
Current stakes of 5% or more from Schedule 13D and 13G filings. A joint filing shows once, under its lead filer.
| Holder | Form | Stake | Filed |
|---|---|---|---|
| FMR LLCinvestment advisorwith Abigail P. Johnson | SC 13G/A | 13.5% | Aug 6, 2026 |
| BlackRock, Inc.holding company | SC 13G/A | 8.0% | Apr 24, 2026 |
| Vanguard Capital Managementinvestment advisor | SC 13G | 7.5% | Apr 29, 2026 |
| Vanguard Portfolio Managementinvestment advisor | SC 13G | 5.2% | Apr 29, 2026 |
Institutional ownership for companies related to CIEN
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.