Ciena^® Corporation (NYSE:CIEN), the global leader in high-speed connectivity, expects to announce its fiscal first quarter financial results on Thursday, March 5, 2026 before the open of the financial markets. The press release will be available on Ciena's website at www.ciena.com.

In conjunction with the announcement, Ciena will post an additional set of supporting materials to the Quarterly Results page of the Investor Relations section of its website. Ciena's management will then host a live audio web broadcast beginning at 8:30 a.m. Eastern accessible via www.ciena.com.

Rebroadcast Information

For those listeners unable to participate in the live web broadcast, an archived version of the conference call will be available shortly following the conclusion of the live call in the Events & Presentations section of the Investor Relations section of Ciena's website.

About Ciena

Ciena is the global leader in high-speed connectivity. We build the world's most adaptive networks to support exponential growth in bandwidth demand. By harnessing the power of our networking systems, interconnects, automation software, and services, Ciena revolutionizes data transmission and network management. With unparalleled expertise and innovation, we empower our customers, partners, and communities to thrive in the AI era. For updates on Ciena, follow us on LinkedIn and X, or visit the Ciena Insights webpage and Ciena website.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260205776167/en/

Press Contact:

Jamie Moody

Ciena Corporation

+1 (410) 694-5761

pr@ciena.com

Investor Contact:

Gregg Lampf

Ciena Corporation

+1 (410) 694-5700

ir@ciena.com

Ciena Announces Reporting Date and Web Broadcast for Fiscal First Quarter 2026 Results