SEC Form 4 · Updated Daily
CIEN
— CIENA CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Locoh-Donou Francois | Director · Officer | 285,015 | 2017-03-21 | S |
| MOYLAN JAMES E JR | Officer | 226,061 | 2025-06-20 | F |
| SMITH GARY B | Director · Officer | 225,455 | 2026-10-15 | S |
| SMITH ARTHUR D | Officer | 220,460 | 2010-07-01 | S |
| Morin Philippe | Officer | 219,482 | 2015-09-21 | S |
| Rothenstein David M | Officer | 172,881 | 2026-10-15 | S |
| NETTLES PATRICK H | Director · Officer | 165,745 | 2025-03-21 | F |
| Aquino Michael Gerald | Officer | 158,332 | 2011-06-21 | S |
| FITT LAWTON W | Director | 130,033 | 2026-03-26 | A |
| FRODSHAM JAMES | Officer | 128,006 | 2019-06-20 | F |
| CASH HARVEY B | Director | 113,459 | 2018-04-03 | A |
| Dodd James Richard JR | Officer | 107,334 | 2014-10-16 | S |
| Graff Marc D. | Officer | 107,136 | 2026-10-01 | S |
| Rowny Michael J | Director | 95,917 | 2018-04-03 | A |
| COLLIER JAMES | Officer | 89,000 | 2006-03-07 | A |
| NACHBAR DAVID R | Officer | 88,190 | 2011-12-15 | A |
| McFeely Scott | Officer | 85,054 | 2023-10-16 | S |
| Kosaraju Sheela | Officer | 84,065 | 2026-10-01 | S |
| ALEXANDER STEPHEN B | Officer | 77,958 | 2022-03-15 | S |
| HAMILTON RICK | Officer | 77,190 | 2022-12-21 | S |
| Starke Marcus H | Officer | 69,970 | 2016-12-21 | S |
| OBRIEN JUDITH M | Director | 68,341 | 2022-04-05 | S |
| Yang Mary | Officer | 60,116 | 2021-12-20 | F |
| Phipps Jason | Officer | 57,388 | 2026-10-01 | S |
| GALLAGHER PATRICK | Director | 50,789 | 2026-03-26 | A |
| MEDINA MANUEL D | Director | 50,000 | 2012-09-24 | D |
| STEVENSON RUSSELL B JR | Officer | 45,329 | 2008-08-02 | F |
| BRADLEY STEPHEN P | Director | 40,345 | 2011-03-23 | A |
| Cumello Joseph | Officer | 39,570 | 2026-09-25 | S |
| CHINNICI JOSEPH R | Officer | 37,664 | 2007-12-20 | A |
| DiPerna Dino | Officer | 36,628 | 2026-10-15 | S |
| Olsen Joanne Beth | Director | 35,003 | 2026-03-26 | A |
| Gage Brodie | Officer | 34,073 | 2026-10-15 | S |
| PETRIK ANDREW C | Officer | 32,804 | 2024-12-17 | A |
| KUMAR DEVINDER | Director | 29,557 | 2026-03-26 | A |
| AHMED HASSAN | Director | 24,025 | 2026-03-26 | A |
| FATHERS WILLIAM D | Director | 12,433 | 2018-04-03 | A |
| PUMA MARY G | Director | 11,477 | 2026-03-26 | A |
| Claflin Bruce L. | Director | 8,279 | 2026-09-24 | S |
| TAYLOR GERALD H | Director | 7,856 | 2008-03-26 | A |
| Hoffman Grant | Officer | 6,347 | 2026-09-20 | F |
| NEVENS THOMAS MICHAEL | Director | 6,289 | 2026-09-23 | S |
| CLAFLIN BRUCE L | Director | 5,392 | 2007-03-14 | A |
| PLATINUM INVESTMENT MANAGEMENT LTD | 10%+ Owner | 0 | 2011-10-25 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-15 | Rothenstein David M | Open-market sale | 2,500 | $348.06 | 172,881 |
| 2026-10-15 | SMITH GARY B | Open-market sale | 2,952 | $348.02 | 225,455 |
| 2026-10-15 | DiPerna Dino | Open-market sale | 445 | $350.00 | 36,183 |
| 2026-10-15 | DiPerna Dino | Open-market sale | 445 | $344.08 | 36,628 |
| 2026-10-15 | Gage Brodie | Open-market sale | 1,200 | $344.08 | 34,073 |
| 2026-10-01 | SMITH GARY B | Open-market sale | 2,952 | $369.66 | 228,407 |
| 2026-10-01 | Phipps Jason | Open-market sale | 2,629 | $355.19 | 57,388 |
| 2026-10-01 | Kosaraju Sheela | Open-market sale | 2,101 | $355.19 | 84,065 |
| 2026-10-01 | Graff Marc D. | Open-market sale | 97 | $355.19 | 107,136 |
| 2026-09-25 | Cumello Joseph | Open-market sale | 1,586 | $358.52 | 39,570 |
| 2026-09-24 | Claflin Bruce L. | Open-market sale | 2,857 | $355.91 | 8,279 |
| 2026-09-24 | NEVENS THOMAS MICHAEL | Gift | 2,797 | — | 3,492 |
| 2026-09-23 | NEVENS THOMAS MICHAEL | Open-market sale | 3,738 | $359.04 | 6,289 |
| 2026-09-20 | Graff Marc D. | Tax withholding | 286 | $348.80 | 107,233 |
| 2026-09-20 | Kosaraju Sheela | Tax withholding | 189 | $348.80 | 86,166 |
| 2026-09-20 | Kosaraju Sheela | Tax withholding | 330 | $348.80 | 86,355 |
| 2026-09-20 | Kosaraju Sheela | Tax withholding | 549 | $348.80 | 86,685 |
| 2026-09-20 | Kosaraju Sheela | Tax withholding | 691 | $348.80 | 87,234 |
| 2026-09-20 | Kosaraju Sheela | Tax withholding | 156 | $348.80 | 87,925 |
| 2026-09-20 | Phipps Jason | Tax withholding | 268 | $348.80 | 60,017 |
| 2026-09-20 | Phipps Jason | Tax withholding | 503 | $348.80 | 60,285 |
| 2026-09-20 | Phipps Jason | Tax withholding | 859 | $348.80 | 60,788 |
| 2026-09-20 | Phipps Jason | Tax withholding | 735 | $348.80 | 61,647 |
| 2026-09-20 | Rothenstein David M | Tax withholding | 220 | $348.80 | 175,381 |
| 2026-09-20 | Rothenstein David M | Tax withholding | 436 | $348.80 | 175,601 |
| 2026-09-20 | Rothenstein David M | Tax withholding | 811 | $348.80 | 176,037 |
| 2026-09-20 | Rothenstein David M | Tax withholding | 204 | $348.80 | 176,848 |
| 2026-09-20 | Rothenstein David M | Tax withholding | 679 | $348.80 | 177,052 |
| 2026-09-20 | SMITH GARY B | Tax withholding | 937 | $348.80 | 231,359 |
| 2026-09-20 | SMITH GARY B | Tax withholding | 1,743 | $348.80 | 232,296 |
| 2026-09-20 | SMITH GARY B | Tax withholding | 3,102 | $348.80 | 234,039 |
| 2026-09-20 | SMITH GARY B | Tax withholding | 2,985 | $348.80 | 237,141 |
| 2026-09-20 | Gage Brodie | Tax withholding | 231 | $348.80 | 35,273 |
| 2026-09-20 | Gage Brodie | Tax withholding | 388 | $348.80 | 35,504 |
| 2026-09-20 | Gage Brodie | Tax withholding | 669 | $348.80 | 35,892 |
| 2026-09-20 | Gage Brodie | Tax withholding | 442 | $348.80 | 36,561 |
| 2026-09-20 | Gage Brodie | Tax withholding | 204 | $348.80 | 37,003 |
| 2026-09-20 | Hoffman Grant | Tax withholding | 170 | $348.80 | 6,347 |
| 2026-09-20 | DiPerna Dino | Tax withholding | 247 | $348.80 | 37,073 |
| 2026-09-20 | DiPerna Dino | Tax withholding | 428 | $348.80 | 37,320 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.