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 | 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 |
| CI | Neville Everett | See Remarks | 09/03/2026 | Verkauf | 284.05 | 617 | 175,259 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 09/01/2026 | Verkauf | 362.90 | 2,952 | 1,071,278 | Form 4 |
| CI | Jones Nicole S | See Remarks | 08/18/2026 | Verkauf | 279.61 | 2,677 | 748,516 | 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 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.74 | 2 | 59 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.73 | 795 | 23,635 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.56 | 33 | 975 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.53 | 100 | 2,953 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.44 | 200 | 5,888 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.42 | 330 | 9,708 | Form 4 |
| CIX | Manix Ann | Director | 08/11/2026 | Verkauf | 29.41 | 20 | 588 | Form 4 |
| CI | Jones Nicole S | See Remarks | 08/04/2026 | Verkauf | 276.27 | 19,436 | 5,369,584 | Form 4 |
| CINF | Schiff Charles Odell | Director | 08/03/2026 | Verkauf | 175.40 | 7,600 | 1,333,067 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 08/03/2026 | Verkauf | 379.81 | 2,952 | 1,121,212 | Form 4 |
| CIEN | Gage Brodie | SVP Global Products & Supply | 07/15/2026 | Verkauf | 449.15 | 1,200 | 538,980 | Form 4 |
| CIEN | DiPerna Dino | SVP Global R&D | 07/15/2026 | Verkauf | 449.15 | 391 | 175,618 | Form 4 |
| CIEN | Rothenstein David M | SVP and Chief Strategy Officer | 07/15/2026 | Verkauf | 420.91 | 2,500 | 1,052,284 | Form 4 |
| CIEN | Smith Gary B | President, CEO | 07/15/2026 | Verkauf | 421.10 | 2,952 | 1,243,098 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).