Ribbon Communications Inc. filings document public-company reporting for a Nasdaq-listed provider of communications software, IP routing and optical networking solutions. Current Reports on Form 8-K record quarterly and annual financial-result releases, exhibits furnished with earnings announcements, and leadership or board changes under Item 5.02.
Ribbon’s proxy materials describe annual meeting matters, board composition, governance arrangements and stockholder voting items. The filing record also identifies the company’s common stock, par value $0.0001, listed on the Nasdaq Global Select Market under RBBN, and connects formal disclosures to its service provider, enterprise, critical infrastructure, government and defense customer categories.
Ribbon Communications Inc. EVP, Global Sales Stephen J. McCaffery reported that 36,003 and 108,006 RSUs vested into common shares on October 31, 2026. The company withheld 16,921 and 50,762 shares, respectively, to satisfy tax withholding obligations; each withholding was reported at $1.55 per share. No Rule 10b5-1 plan is reported.
Ribbon Communications Inc. (RBBN) President & CEO Bruce William McClelland purchased 60,000 common shares on October 30, 2026, at a weighted average price of $1.604 per share. His reported direct holdings after the purchase were 2,969,454 shares. No Rule 10b5-1 plan is reported for the purchase.
Ribbon Communications Inc. (RBBN) recorded $218.7 million of revenue in the three months ended September 30, 2026, compared with $215.4 million a year earlier. Product revenue was $121.3 million and service revenue was $97.4 million. Net loss was $9.1 million, versus $12.1 million a year earlier.
For the first nine months, revenue was $573.7 million, compared with $617.2 million, while net loss was $70.5 million versus $49.4 million. Operating activities used $47.9 million of cash, compared with $22.2 million provided in the prior-year period. At September 30, 2026, borrowings under the credit facility were $350.6 million, including $335.6 million of term debt and $15.0 million under the revolving facility; available borrowing capacity was $20.0 million, and cash and cash equivalents were $40.4 million. A credit amendment set a 4.50:1.00 maximum consolidated net leverage ratio for the period ending September 30 and 4.00:1.00 for subsequent quarters, with a 7.00% interest margin for quarters in which the ratio exceeds 3.75:1.00. Ribbon reported compliance with all financial covenants at September 30.
Ribbon Communications Inc. (RBBN) reported third-quarter 2026 revenue of $218.7 million, up 14% sequentially; Q3 2025 revenue was $215.4 million. GAAP operating income was $5.6 million, versus $2.8 million, and the GAAP net loss narrowed to $9.1 million from $12.1 million. Adjusted EBITDA, a non-GAAP measure, was $26.8 million compared with $28.9 million a year earlier, and rose from $11.9 million in the second quarter. IP Optical Networks revenue increased 17% sequentially and Cloud and Edge revenue increased 11%.
For the first nine months, revenue was $573.7 million versus $617.2 million, GAAP net loss was $70.5 million versus $49.4 million, and operating cash flow was a use of $47.9 million versus cash provided of $22.2 million. For Q4 2026, Ribbon projects revenue of $233 million to $247 million, non-GAAP gross margin of 53.5% to 54.5%, and Adjusted EBITDA of $40 million to $47 million. The outlook is based on current business indications and is subject to change.
Ribbon Communications Inc. EVP, Chief Financial Officer Eric S. Marmurek reported the conversion of 37,500 restricted stock units into 37,500 common shares on October 15, 2026, as the units vested. Ribbon withheld 14,756 common shares at $1.46 per share to satisfy tax withholding obligations related to vesting. Each RSU represented a contingent right to receive one common share.
Ribbon Communications Inc. (RBBN) director Bruns H. Grayson received 19,176 shares of common stock on October 15, 2026, issued instead of cash fees for service on the board and its committees. His reported direct holdings after the award were 859,446 shares.
Ribbon Communications Inc. director Shaul Shani reported converting 185,210 restricted stock units into 185,210 common shares on October 15, 2026. The RSUs, granted on October 15, 2025, vested in full and converted one-for-one. Shani also received 15,625 common shares in lieu of cash fees for board service; the price was determined under the company's Non-Employee Director Compensation Policy.
Ribbon Communications Inc. reported weaker results for the quarter ended June 30, 2026. Revenue was $192.3 million, down from $220.6 million a year earlier, and the company recorded a net loss of $26.9 million versus an $11.1 million loss, as operating income turned to a loss and interest expense was $10.7 million.
For the first half of 2026, revenue was $354.9 million and net loss was $61.4 million. Operating activities used $33.5 million of cash, and cash, cash equivalents and restricted cash fell to $45.5 million. Total borrowings under the credit facility were $337.8 million, with the term loan carrying an average interest rate of 9.9% and $35.0 million of undrawn revolver capacity.
On May 5, 2026, Ribbon amended its credit agreement, obtaining a waiver of compliance with the maximum Consolidated Net Leverage Ratio for the period ending June 30, 2026, adjusting the maximum ratio to 4.50:1.00 at September 30, 2026 and 4.00:1.00 thereafter, and setting the interest margin at 7.00% in quarters when the Consolidated Net Leverage Ratio exceeds 3.75:1.00. The company also recorded $6.5 million of restructuring and related expense in the first half and continued modest repurchases under its $50 million share buyback program.
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.
GRAYSON BRUNS H reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. director and reporting person GRAYSON BRUNS H received an equity award of 14,423 shares of common stock on 2026-07-15, issued in lieu of cash fees for service on the Board of Directors and its committees. After this grant, he directly holds 840,270 common shares.