| Sep 20, 2026 | CIENEVP & Chief Product & | Shares withheld for tax or exercise priceCode F · direct | 231 | $348.80 | $81K@ $348.80 | 35,273 | Form 4 |
| Sep 20, 2026 | CIENEVP & Chief Product & | Shares withheld for tax or exercise priceCode F · direct | 388 | $348.80 | $135K@ $348.80 | 35,504 | Form 4 |
| Sep 20, 2026 | CIENEVP & Chief Product & | Shares withheld for tax or exercise priceCode F · direct | 669 | $348.80 | $233K@ $348.80 | 35,892 | Form 4 |
| Sep 20, 2026 | CIENEVP & Chief Product & | Shares withheld for tax or exercise priceCode F · direct | 442 | $348.80 | $154K@ $348.80 | 36,561 | Form 4 |
| Sep 20, 2026 | CIENEVP & Chief Product & | Shares withheld for tax or exercise priceCode F · direct | 204 | $348.80 | $71K@ $348.80 | 37,003 | Form 4 |
| Sep 15, 2026 | CIENEVP & Chief Product & | Open-market saleCode S · direct | 1,200 | $324.86 | $390K@ $324.86 | 37,207 | Form 4 |
| Aug 17, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 1,200 | $439.24 | $527K@ $439.24 | 38,407 | Form 4 |
| Jul 15, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 1,200 | $449.15 | $539K@ $449.15 | 39,607 | Form 4 |
| Jun 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 231 | $428.22 | $99K@ $428.22 | 40,807 | Form 4 |
| Jun 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 388 | $428.22 | $166K@ $428.22 | 41,038 | Form 4 |
| Jun 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 669 | $428.22 | $286K@ $428.22 | 41,426 | Form 4 |
| Jun 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 442 | $428.22 | $189K@ $428.22 | 42,095 | Form 4 |
| Jun 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 204 | $428.22 | $87K@ $428.22 | 42,537 | Form 4 |
| Jun 15, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 1,200 | $466.10 | $559K@ $466.10 | 42,741 | Form 4 |
| May 15, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 1,200 | $570.65 | $685K@ $570.65 | 43,941 | Form 4 |
| Apr 15, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 1,200 | $471.79 | $566K@ $471.79 | 45,141 | Form 4 |
| Mar 24, 2026 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 5,000 | $405.00 | $2.0M@ $405.00 | 46,341 | Form 4 |
| Mar 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 387 | $383.89 | $149K@ $383.89 | 51,341 | Form 4 |
| Mar 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 669 | $383.89 | $257K@ $383.89 | 51,728 | Form 4 |
| Mar 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 442 | $383.89 | $170K@ $383.89 | 52,397 | Form 4 |
| Mar 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 204 | $383.89 | $78K@ $383.89 | 52,839 | Form 4 |
| Mar 20, 2026 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 230 | $383.89 | $88K@ $383.89 | 53,043 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 1,285 | $230.34 | $296K@ $230.34 | 53,273 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 1,618 | $230.34 | $373K@ $230.34 | 54,558 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 1,860 | $230.34 | $428K@ $230.34 | 56,176 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 212 | $230.34 | $49K@ $230.34 | 58,036 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 388 | $230.34 | $89K@ $230.34 | 58,248 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 669 | $230.34 | $154K@ $230.34 | 58,636 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 442 | $230.34 | $102K@ $230.34 | 59,305 | Form 4 |
| Dec 20, 2025 | CIENSVP Global Products & Supply | Shares withheld for tax or exercise priceCode F · direct | 204 | $230.34 | $47K@ $230.34 | 59,747 | Form 4 |
| Dec 16, 2025 | CIENSVP Global Products & Supply | Grant or awardCode A · direct | 6,910 | — | — | 59,951 | Form 4 |
| Dec 16, 2025 | CIENSVP Global Products & Supply | Grant or awardCode A · direct | 13,049 | — | — | 53,041 | Form 4 |
| Dec 15, 2025 | CIENSVP Global Products & Supply | Open-market saleCode S · direct | 550 | $220.84 | $121K@ $220.84 | 39,992 | Form 4 |