Ciena Corporation (CIEN)
NYSE: CIEN · Telephone & Telegraph Apparatus · Hanover, MD · filing with the SEC since 1996
Grade6.8
◀ Past 7.7● Present 6.9▶ Future 5.7
Filings
239 filings since 2017 beside 1,552 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026Due nextLarge accelerated filer
10-K
Annual report for the fiscal year ending Oct 31, 2026Large accelerated filers have 60 days after the fiscal year ends.
by Dec 30, 2026
10-Q
Quarterly report for the quarter ending Jan 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by Mar 12, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 33 days after the quarter ended. The proxy statement was last filed Feb 12, 2026.
Filings a yearinsider forms included
191184154153196159176168
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 6 times in the last 36 months, the newest Dec 4, 2025.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Jun 11, 2026
8-K items 1.01, 2.03, 3.02, 8.01, 9.01
Major agreement signed; New debt or obligation taken on; Shares sold without registration; Other event · Current report
Jun 8, 2026
Jun 18, 2025
8-K items 5.02, 7.01, 9.01
Officer or director change; Investor disclosure (Regulation FD) · Current report
Jan 21, 2025
8-K items 1.01, 2.03, 9.01
Major agreement signed; New debt or obligation taken on · Current report
Jan 17, 2025
40 of 239 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.