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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.
SHANI SHAUL reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. director Shaul Shani reported a grant of 11,752 shares of common stock on July 15, 2026. The shares were issued in lieu of cash fees for service on the Board of Directors, with the price determined under the Non-Employee Director Compensation Policy, bringing Shani’s direct holdings to 237,718 shares.
Ribbon Communications Inc. executive vice president and chief operating officer Sam Bucci received new equity awards in the form of restricted and performance-based stock units tied to Ribbon's common stock. These awards are part of his compensation and do not represent open-market purchases or sales.
The filing reports grants of 250,000 restricted stock units (RSUs) and performance-based RSUs (PSUs) totaling 250,000 underlying shares of common stock at a conversion price of $0.00 per share-equivalent. The RSUs vest one-third on June 15, 2027, with the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029, encouraging multi-year retention.
The PSUs convert to common stock on a one-for-one basis but only if specified performance goals are achieved. One PSU tranche vests based on annual goals set by the Compensation Committee for three fiscal years, with potential issuance from zero up to 100% of the target shares, vesting on April 15, 2029. Another PSU tranche is tied to total shareholder return relative to a peer index over three fiscal years, with potential issuance from zero up to 125% of target shares, also vesting on April 15, 2029.
Ribbon Communications EVP Stephen J. McCaffery received multiple equity awards in the form of restricted and performance-based stock units that convert into Common Stock on a one-for-one basis. These awards are compensation grants at no purchase price, not open-market share purchases.
He was granted RSUs that vest as to one-third on June 15, 2027, with the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029. Additional performance-based RSUs (PSUs) were granted, where the number of shares ultimately issued will depend on achievement of annual goals set by the Compensation Committee and on the company’s total shareholder return versus a peer index over three fiscal years, with PSUs scheduled to vest on April 15, 2029 and payout ranging from zero up to 100% or 125% of target depending on the specific award.
Marmurek Eric S reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. reported that EVP and Chief Financial Officer Eric S. Marmurek received new equity awards in the form of restricted and performance-based stock units. On June 15, 2026, he was granted 60,000 PSUs, 90,000 Performance-Based RSUs (PSUs), and 150,000 RSUs, each convertible into Common Stock on a one-for-one basis.
The 150,000 RSUs vest over time, with one-third vesting on June 15, 2027 and the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029. The PSUs can result in between zero and up to 100% or 125% of the target share amounts, depending on annual performance goals or total shareholder return versus a peer index over three fiscal years, and are scheduled to vest on April 15, 2029. These are compensation-related grants rather than open-market share purchases or sales.
Macken Patrick W reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications EVP and Chief Legal Officer Patrick W. Macken received new equity awards. On June 15, 2026 he was granted 65,000 PSUs, 97,500 performance-based RSUs (PSUs), and 162,500 RSUs, each convertible into Common Stock on a one-for-one basis. The RSUs vest from June 15, 2027 through June 15, 2029, while the PSUs vest on April 15, 2029 based on annual performance goals and relative total shareholder return, which can yield from zero up to the stated target (or 125% of target for one PSU grant).
Ribbon Communications director Tanya Tamone reported routine equity compensation activity. On June 16, 2026, she exercised 42,500 RSUs into the same number of common shares, bringing her direct common stock holdings to 223,300 shares. The exercised RSUs had been awarded on June 16, 2025 and fully vested on June 16, 2026.
On June 15, 2026, she also received a new grant of 63,197 restricted stock units. These RSUs will vest on June 15, 2027, subject to continued service, or earlier on the date of Ribbon’s 2027 Annual Meeting of Stockholders if she does not stand for re-election or is not re-elected at that meeting.
SILVER LOUIS reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. director Louis Silver received a grant of 63,197 Restricted Stock Units (RSUs) tied to the company’s common stock. Each RSU represents a right to receive one share when it vests. The award will vest on June 15, 2027, if he continues serving the company.
If Ribbon’s 2027 annual stockholders’ meeting occurs before June 15, 2027 and Silver either does not stand for re-election or is not re-elected, the RSUs will instead vest on the date of that meeting. Following this grant, he holds 63,197 RSUs directly.