Filing Flows › Ciena (CIEN) › Who owns the stock
Who owns Ciena (CIEN) stock
1,094 funds reported Ciena (CIEN) shares in their latest 13F filings, worth $60.7B in all. The largest holder is FMR LLC ($9.4B). Last quarter 656 funds added to their stakes and 443 cut them. Members of Congress and other officials disclosed 5 trades (4 buys, 1 sales).
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| FMR LLC | 19,113,538 | $9.4B | decrease | 2026-06-30 |
| BlackRock | 12,718,494 | $6.2B | decrease | 2026-06-30 |
| Vanguard Capital Management LLC | 9,233,803 | $4.5B | increase | 2026-06-30 |
| Vanguard Portfolio Management LLC | 7,680,665 | $3.8B | increase | 2026-06-30 |
| Vanguard Group | 14,376,579 | $3.4B | decrease | 2025-12-31 |
| State Street | 6,680,578 | $3.3B | increase | 2026-06-30 |
| Price T Rowe Associates | 4,071,401 | $2.0B | decrease | 2026-06-30 |
| Geode Capital Management, LLC | 3,370,462 | $1.6B | decrease | 2026-06-30 |
| American Century Companies | 1,851,788 | $908M | increase | 2026-06-30 |
| Bank of America | 1,788,582 | $877M | decrease | 2026-06-30 |
| Capital World Investors | 1,755,602 | $861M | increase | 2026-06-30 |
| Invesco | 1,730,210 | $849M | increase | 2026-06-30 |
| Arrowstreet Capital, Limited Partnership | 1,677,029 | $823M | increase | 2026-06-30 |
| Morgan Stanley | 1,634,630 | $802M | increase | 2026-06-30 |
| Nuveen, LLC | 1,391,429 | $683M | increase | 2026-06-30 |
Trades by Congress and other officials
| Date | Who | Trade | Amount |
|---|---|---|---|
| 2026-05-29 | Gilbert Cisneros | purchase | $1K–$15K |
| 2026-05-14 | Gilbert Cisneros | purchase | $1K–$15K |
| 2026-03-30 | Alan Armstrong | purchase | $1K–$15K |
| 2026-03-27 | Alan Armstrong | purchase | $1K–$15K |
| 2025-10-31 | Lisa McClain | sale | $1K–$15K |
Ciena's latest quarter
Ciena, Q3 FY26: revenue $1.7B (+37% year over year), operating margin 18.0%, net earnings $266M, operating cash flow $196M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most CIEN stock?
By the latest 13F filings: FMR LLC ($9.4B); BlackRock ($6.2B); Vanguard Capital Management LLC ($4.5B); Vanguard Portfolio Management LLC ($3.8B); Vanguard Group ($3.4B).
Has Congress traded CIEN stock?
Officials disclosed 5 trades on file: 4 buys and 1 sales. The latest: Gilbert Cisneros, purchase on 2026-05-29.
What is the short interest in CIEN?
3,984,850 shares were sold short at the 2026-10-15 settlement, 3.0% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.