Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| CIEN | Gage Brodie | EVP & Chief Product & Tech | 10/15/2026 | Verkauf | 344.08 | 1,200 | 412,896 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 10/15/2026 | Verkauf | 350.00 | 445 | 155,750 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 10/15/2026 | Verkauf | 348.06 | 2,500 | 870,157 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 10/15/2026 | Verkauf | 348.02 | 2,952 | 1,027,356 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 10/01/2026 | Verkauf | 369.66 | 2,952 | 1,091,238 | Form 4 |
| CIEN | Graff Marc D. | EVP & Chief Financial Officer | 10/01/2026 | Verkauf | 355.19 | 97 | 34,453 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 10/01/2026 | Verkauf | 355.19 | 2,101 | 746,254 | Form 4 |
| CIEN | Phipps Jason | EVP & Chief Customer Officer | 10/01/2026 | Verkauf | 355.19 | 2,629 | 933,795 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/25/2026 | Verkauf | 358.52 | 1,586 | 568,605 | Form 4 |
| CIEN | Claflin Bruce L. | Director | 09/24/2026 | Verkauf | 355.91 | 2,857 | 1,016,835 | Form 4 |
| CIEN | Nevens Thomas Michael | Director | 09/24/2026 | Schenkung | — | 2,797 | — | Form 4 |
| CIEN | Nevens Thomas Michael | Director | 09/23/2026 | Verkauf | 359.04 | 3,738 | 1,342,092 | Form 4 |
| CIEN | Hoffman Grant | EVP & Chief Supply | 09/20/2026 | Steuer-Abgabe | 348.80 | 170 | 59,296 | Form 4 |
| CIEN | Graff Marc D. | EVP & Chief Financial Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 286 | 99,757 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/20/2026 | Steuer-Abgabe | 348.80 | 231 | 80,573 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/20/2026 | Steuer-Abgabe | 348.80 | 388 | 135,334 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/20/2026 | Steuer-Abgabe | 348.80 | 669 | 233,347 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/20/2026 | Steuer-Abgabe | 348.80 | 442 | 154,170 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/20/2026 | Steuer-Abgabe | 348.80 | 204 | 71,155 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 247 | 86,154 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 428 | 149,286 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 730 | 254,624 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 444 | 154,867 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 204 | 71,155 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 189 | 65,923 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 330 | 115,104 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 549 | 191,491 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 691 | 241,021 | Form 4 |
| CIEN | Kosaraju Sheela | EVP & Chief Legal Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 156 | 54,413 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/20/2026 | Steuer-Abgabe | 348.80 | 331 | 115,453 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/20/2026 | Steuer-Abgabe | 348.80 | 180 | 62,784 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/20/2026 | Steuer-Abgabe | 348.80 | 582 | 203,002 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/20/2026 | Steuer-Abgabe | 348.80 | 182 | 63,482 | Form 4 |
| CIEN | Cumello Joseph | EVP & General Mgr. | 09/20/2026 | Steuer-Abgabe | 348.80 | 441 | 153,821 | Form 4 |
| CIEN | Phipps Jason | EVP & Chief Customer Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 268 | 93,478 | Form 4 |
| CIEN | Phipps Jason | EVP & Chief Customer Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 503 | 175,446 | Form 4 |
| CIEN | Phipps Jason | EVP & Chief Customer Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 859 | 299,619 | Form 4 |
| CIEN | Phipps Jason | EVP & Chief Customer Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 735 | 256,368 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 220 | 76,736 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 436 | 152,077 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 811 | 282,877 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 204 | 71,155 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/20/2026 | Steuer-Abgabe | 348.80 | 679 | 236,835 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 09/20/2026 | Steuer-Abgabe | 348.80 | 937 | 326,826 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 09/20/2026 | Steuer-Abgabe | 348.80 | 1,743 | 607,958 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 09/20/2026 | Steuer-Abgabe | 348.80 | 3,102 | 1,081,978 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 09/20/2026 | Steuer-Abgabe | 348.80 | 2,985 | 1,041,168 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/16/2026 | Verkauf | 350.00 | 249 | 87,150 | Form 4 |
| CIEN | Gage Brodie | EVP & Chief Product & | 09/15/2026 | Verkauf | 324.86 | 1,200 | 389,832 | Form 4 |
| CIEN | DiPerna Dino | EVP & Chief R&D Officer | 09/15/2026 | Verkauf | 324.86 | 249 | 80,890 | Form 4 |
| CIEN | Rothenstein David M | EVP & Chief Strategy Officer | 09/15/2026 | Verkauf | 330.48 | 2,500 | 826,208 | Form 4 |
| CIEN | Smith Gary B | President & CEO | 09/15/2026 | Verkauf | 330.18 | 2,952 | 974,688 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 09/01/2026 | Verkauf | 362.90 | 2,952 | 1,071,278 | Form 4 |
| CIEN | Gage Brodie | SVP Global Products & Supply | 08/17/2026 | Verkauf | 439.24 | 1,200 | 527,088 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 08/17/2026 | Verkauf | 447.78 | 2,952 | 1,321,840 | Form 4 |
| CIEN | Graff Marc D. | SVP & Chief Financial Officer | 08/14/2026 | Verkauf | 430.72 | 4,995 | 2,151,435 | Form 4 |
| CIEN | Rothenstein David M | SVP and Chief Strategy Officer | 08/14/2026 | Verkauf | 438.10 | 2,500 | 1,095,250 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 08/03/2026 | Verkauf | 379.81 | 2,952 | 1,121,212 | Form 4 |
| CIEN | Graff Marc D. | SVP & Chief Financial Officer | 08/01/2026 | Steuer-Abgabe | 377.05 | 14,441 | 5,444,979 | Form 4 |
| CIEN | Gage Brodie | SVP Global Products & Supply | 07/15/2026 | Verkauf | 449.15 | 1,200 | 538,980 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).