10 Form 4 filings for CIEN between 2026-07-17 and 2026-08-18, from 5 filers. 10 discretionary (9 sales, 0 purchases). 1 of 10 state a filing-level total, summing to $351,235; the rest report only their largest transaction, so the true figure is higher. Prices ran $377 to $449.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | Graff Marc D. | sold | 4,995 | $430.72 | — | — | |
| 2026-08-18 | Rothenstein David M | sold | 2,500 | $438.10 | — | — | |
| 2026-08-18 | SMITH GARY B | sold | 2,952 | $447.78 | — | — | |
| 2026-08-18 | Gage Brodie | sold | 1,200 | $439.24 | — | — | |
| 2026-08-04 | Graff Marc D. | — | 14,441 | $377.05 | — | — | |
| 2026-08-04 | SMITH GARY B | sold | 2,952 | $379.81 | — | — | |
| 2026-07-17 | SMITH GARY B | sold | 2,952 | $421.10 | — | — | |
| 2026-07-17 | Rothenstein David M | sold | 2,500 | $420.91 | — | — | |
| 2026-07-17 | Gage Brodie | sold | 1,200 | $449.15 | — | — | |
| 2026-07-17 | DiPerna Dino | sold | 391 | $449.15 | $351,235 | 2 | |
| 10 filings · 5 filers · disclosed totals only | $351,235 (1/10) | — | |||||