Ribbon Communications Inc. (RBBN)
Nasdaq: RBBN · Services-Computer Integrated Systems Design · Plano, TX · filing with the SEC since 2017
Grade5.4
◀ Past 5.0● Present 5.9▶ Future 5.4
Filings
230 filings since 2017 beside 502 insider forms · Accelerated filer · read from EDGAR on Nov 13, 2026Due nextAccelerated filer
10-K
Annual report for the fiscal year ending Dec 31, 2026Accelerated filers have 75 days after the fiscal year ends.
by Mar 16, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by May 10, 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 27 days after the quarter ended. The proxy statement was last filed Apr 17, 2026.
Filings a yearinsider forms included
81128798471726144
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 6 times in the last 36 months, the newest Apr 28, 2026.A late-filing notice, Form NT 10-Q, filed May 13, 2024.
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
Apr 28, 2026
8-K items 2.02, 5.02, 9.01
Results released; Officer or director change · Current report
May 30, 2025
8-K items 5.02, 5.03, 5.07, 9.01
Officer or director change; Charter, bylaw or fiscal-year change; Shareholder vote · Current report
May 28, 2025
Jun 24, 2024
8-K items 1.01, 1.02, 2.03, 8.01, 9.01
Major agreement signed; Major agreement ended; New debt or obligation taken on; Other event · Current report
Jun 21, 2024
40 of 230 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.