Every 8-K that Ribbon Communications Inc. (RBBN) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow RBBN and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full RBBN filings page.
Ribbon Communications Inc. reported second quarter 2026 revenue of $192 million, down from $221 million a year earlier, and a GAAP net loss of $27 million versus an $11 million loss in the prior-year quarter. Non-GAAP Adjusted EBITDA was $12 million, compared with $32 million, while GAAP and non-GAAP gross margins were 47.0% and 49.3%, respectively, below last year.
Sequentially, revenue rose about 18% from $162.6 million in the first quarter, and management highlighted an approximately $20 million improvement in profitability, driven by both operating segments. The IP Optical Networks business posted record quarterly bookings, with notable wins in North America and large enterprise deployments, including a Microsoft Teams Voice project and a partnership with Salesforce’s Agentforce Contact Center.
For the third quarter of 2026, the company projects revenue of $215–$230 million, non-GAAP gross margin of 51–52%, and Adjusted EBITDA of $26–$31 million. Full-year 2026 targets call for revenue of $810–$840 million, non-GAAP gross margin of 51–52%, and Adjusted EBITDA of $78–$88 million. As of June 30, 2026, cash and cash equivalents were $43.5 million and net cash used in operating activities for the first half was $33.5 million, with long-term debt of $320.6 million.
Ribbon Communications Inc. furnished an investor presentation in connection with an investor conference, outlining its position as a provider of mission‑critical communications and networking infrastructure for AI workloads. The company emphasizes secure AI voice, autonomous networking, and data center interconnect as key growth vectors. It highlights a revenue mix with approximately 67% software and services, 32% maintenance revenue, and maintenance renewal rates above 90%, which together support recurring cash flow. Average customer tenure of about 20 years and more than 1,000 global customers underscore long‑term relationships and high switching costs. The presentation also notes a 12% CAGR in revenue over recent years and improving adjusted EBITDA on a trailing twelve‑month basis, supported by increasing software content and disciplined cost management.
Ribbon Communications Inc. reported the results of its annual stockholder meeting held on June 3, 2026. Stockholders representing 163,724,665 shares, about 93% of the shares outstanding as of the April 6, 2026 record date, were present or represented by proxy.
All nine director nominees were elected, each receiving a strong majority of votes cast "for" versus "against." Stockholders also ratified the appointment of Deloitte & Touche LLP as independent registered public accounting firm for the fiscal year ending December 31, 2026.
In addition, stockholders approved the non-binding advisory vote on executive compensation. The say-on-pay proposal received 98,595,579 votes for, 43,428,949 against, and 5,634,880 abstentions, with 16,363,552 broker non-votes. The Compensation Committee and Board indicated they will consider this outcome in future pay decisions.
Ribbon Communications reported first quarter 2026 revenue of $163 million, down from $181 million a year earlier, and a GAAP net loss of $34.5 million or $(0.20) per share. On a non-GAAP basis, net loss was $8.4 million and Adjusted EBITDA was $(8.3) million, reflecting softer gross margin and restructuring costs.
The company projects second quarter 2026 revenue between $185 million and $195 million, non-GAAP gross margin of 49%–50%, and Adjusted EBITDA of $9–$14 million. For full-year 2026, it targets revenue around $857.5 million and Adjusted EBITDA near $112.5 million. Cash and cash equivalents were $67.6 million at March 31, 2026, down from $96.4 million at year-end, as operating activities used cash.
The company also announced that Chief Financial Officer John Townsend will resign effective April 30, 2026, to pursue another opportunity. Eric “Rick” Marmurek, currently Deputy CFO and Chief Accounting Officer, will become Executive Vice President, Chief Financial Officer and Chief Accounting Officer effective May 1, 2026, with a base salary of $475,000 and a target bonus equal to 75% of base salary.
Ribbon Communications Inc. expanded its Board of Directors to nine members and appointed Louis Silver, age 72, as a director until the 2026 Annual Meeting of Stockholders. He was designated by Swarth Investments Ltd. under an existing stockholders agreement and is expected to join one or more board committees in May 2026.
Silver brings more than 25 years of board experience with technology-focused companies and currently serves on the board of Ceva, Inc., chairing its audit committee. Under Ribbon’s Non-employee Director Compensation Plan, he will receive a pro-rated annual cash retainer of $60,000 and restricted share units valued at $170,000, plus additional retainers for committee service.
Ribbon Communications Inc. filed a current report to furnish a press release with financial information for its quarter and year ended December 31, 2025. The press release is attached as Exhibit 99.1 and is treated as “furnished,” not “filed,” limiting certain Exchange Act liabilities.
The report is signed on behalf of Ribbon Communications by Patrick W. Macken, Executive Vice President, Chief Legal Officer and Secretary.
Ribbon Communications Inc. filed a current report to let investors know it released financial information for the quarter ended September 30, 2025. The company stated that on October 22, 2025 it issued a press release with its quarterly results, which is included as Exhibit 99.1 to this Form 8-K. The furnished press release contains the detailed financial figures and discussion, while this report serves mainly as a formal notice that the information has been made available.
Ribbon Communications Inc. announced that Dan Redington, its Executive Vice President, Global Sales, will leave the company effective September 30, 2025 to pursue other opportunities. The company stated that it expects to appoint a new head of Global Sales before the end of the third quarter of 2025, indicating a planned leadership transition in its global sales organization.