Ribbon Communications Inc. Reports Third Quarter 2025 Financial Results

By PR Newswire | October 22, 2025, 4:03 PM

YTD Revenue Growth of 6% and Increased Profitability

IP Optical Networks 3Q Sales up 11% YoY with Positive Contribution

Acumen AIOps Platform Introduction and Significant Customer Win

PLANO, Texas, Oct. 22, 2025 /PRNewswire/ -- Ribbon Communications Inc. (Nasdaq: RBBN), a global leader in real-time communications technology and IP optical networking solutions, today announced its financial results for the third quarter of 2025. Ribbon Communications is dedicated to assisting the world's largest service providers, enterprises, and critical infrastructure operators in modernizing and safeguarding their networks and services.

Third Quarter 2025 Highlights

Financial Highlights ¹:

  • Revenue was $215 million, compared to $210 million for the third quarter of 2024
  • GAAP Operating Income was $3 million, compared to a loss of $1 million for the third quarter of 2024
  • Non-GAAP Adjusted EBITDA was $29 million, compared to $30 million for the third quarter of 2024
  • GAAP Gross Margin was 50.1%, compared to 52.1% for the third quarter of 2024
  • Non-GAAP Gross Margin was 52.6%, compared to 55.3% for the third quarter of 2024

"Ribbon delivered solid results in the third quarter, with sales growing 2% year over year, an increase of 6% year to date. IP Optical Networks sales grew 11% year over year in the quarter with strong growth in EMEA and India. Cloud & Edge sales year to date have increased more than 8% with sales to Global Service Providers continuing to grow. The recent U.S. Federal Government shut down had a minor impact on our Cloud & Edge third quarter results and creates a near-term timing issue on new purchases, but related voice modernization projects are continuing to progress," stated Bruce McClelland, President and Chief Executive Officer of Ribbon Communications. "More broadly, we believe that our momentum remains strong as evidenced by the expanding number of customers initiating Network Transformation programs and continued growth in our IP Optical Networks segment."  

Mr. McClelland continued, "I am also excited about our innovation pipeline. During the third quarter, we announced the launch and initial deployment of our Acumen AIOps platform with a leading U.S. service provider. Acumen is a powerful new AIOps and automation platform designed to help service providers and enterprises navigate the complexities of today's challenging operational environment and accelerate their transition to autonomous networks. Beyond AIOps, our Cloud & Edge portfolio is becoming increasingly strategic to our customers as they bring voice-enabled Agentic AI capabilities to their offerings including some of the largest global technology and software companies."

John Townsend, Chief Financial Officer of Ribbon Communications, remarked, "Our financial performance in the third quarter of 2025 was in line with our guidance range, supported by solid growth and positive adjusted EBITDA contribution in our IP Optical Networks segment. We also continued to demonstrate strong discipline with operating expenses lower year over year despite foreign exchange headwinds of approximately $3 million. Cash flow from operations was $26 million and our closing cash balance was $77 million, up $14 million from the second quarter of 2025, resulting in a net debt leverage ratio of 2.2 times at quarter end."





Three months ended



Nine months ended





September 30,



September 30,

In millions, except per share amounts



2025



2024



2025



2024

GAAP Revenue



$           215



$           210



$           617



$           583

GAAP Net income (loss)



$           (12)



$           (13)



$           (49)



$           (61)

Non-GAAP Net income (loss)



$               7



$               8



$             12



$             16

Non-GAAP Adjusted EBITDA



$             29



$             30



$             67



$             63

GAAP diluted earnings (loss) per share 



$        (0.07)



$        (0.08)



$        (0.28)



$        (0.35)

Non-GAAP diluted earnings (loss) per share



$         0.04



$         0.05



$         0.07



$         0.09

Weighted average shares outstanding basic



177



175



176



174

Weighted average shares outstanding diluted



181



177



181



176



1 Please see the reconciliations of non-GAAP financial measures to the most directly comparable GAAP measures and additional information about non-GAAP measures

in the section entitled "Discussion of Non-GAAP Financial Measures" in the attached schedules.

Business Highlights:

Business Outlook2   

For the fourth quarter of 2025, the Company projects revenue of $230 million to $250 million. Non-GAAP gross margin is projected in a range of 55% to 56%. Adjusted EBITDA is projected in a range of $42 million to $48 million.

The Company's outlook is based on current indications for its business, which are subject to change.

2 GAAP earnings guidance is not provided. Please see the reconciliations of non-GAAP financial measures to the most directly comparable GAAP measures and

additional information about the non-GAAP measures in the section entitled "Discussion of Non-GAAP Financial Measures" in the attached schedules.

Upcoming Conference Schedule

  • November 18, 2025: Craig-Hallum 16th Annual Alpha Select Conference
  • November 19, 2025: ROTH Technology Conference
  • November 20, 2025: 6th Annual Needham Tech Week
  • December 1-4, 2025: UBS TMT Conference
  • January 13-14, 2026: 28th Annual Needham Growth Conference

Conference Call and Webcast Information

Ribbon Communications will host a conference call to discuss the Company's financial results at 4:30 p.m. ET on Wednesday, October 22, 2025.

Dial-in Information:

     US/Canada: 877-407-2991

     International: 201-389-0925

     Instant Telephone Access: Call me™ 

A live (listen-only) webcast and replay will be available on the Company's Investor Relations website at investors.ribboncommunications.com.

Investor Contact

+1 (978) 614-8050

[email protected]

Media Contact

Catherine Berthier

+1 (646) 741-1974

[email protected]

About Ribbon 

Ribbon Communications (Nasdaq: RBBN) delivers communications software, IP and optical networking solutions to service providers, enterprises and critical infrastructure sectors globally. We engage deeply with our customers, helping them modernize their networks for improved competitive positioning and business outcomes in today's smart, always-on and data-hungry world. Our innovative, end-to-end solutions portfolio delivers unparalleled scale, performance, and agility, including core to edge software-centric solutions, cloud-native offers, leading-edge security and analytics tools, along with IP and optical networking solutions for 5G and broadband internet. We maintain a keen focus on our commitments to Environmental, Social and Governance (ESG) matters, offering an annual Sustainability Report to our stakeholders. To learn more about Ribbon visit rbbn.com.

Important Information Regarding Forward-Looking Statements

This release contains "forward-looking statements" within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, which are subject to a number of risks and uncertainties. All statements other than statements of historical facts contained in this release, including without limitation, statements regarding the Company's projected financial results for the fourth quarter of 2025 and beyond; the impact of the government shutdown on the Company's operating results, beliefs about the Company's business strategy, including new product introductions, and market share growth, are forward-looking statements. Without limiting the foregoing, the words "anticipates", "believes", "could", "estimates", "expects", "expectations", "intends", "may", "plans", "projects" and other similar language, whether in the negative or affirmative, are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words.

Forward-looking statements are based on the Company's current expectations and assumptions regarding its business, the economy and other future conditions. Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are unknown and/or difficult to predict and that may cause the Company's actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. Such risks and uncertainties include, but are not limited to, unpredictable fluctuations in quarterly revenue and operating results; the impact of restructuring and cost-containment activities; increases in tariffs, trade restrictions or taxes on the Company's products; material cybersecurity and data intrusion incidents, including any security breaches resulting in the theft, transfer, or unauthorized disclosure of customer, employee, or Company information; the impact of the government shutdown on the Company' operating results; supply chain disruptions resulting from component availability and/or geopolitical instabilities and disputes (including those related to the wars in Israel and Ukraine); the impact of military call-ups of employees in Israel; material litigation; the impact of fluctuations in interest rates; the Company's ability to comply with applicable domestic and foreign information security and privacy laws, regulations and technology platform rules or other obligations related to data privacy and security; failure to compete successfully against telecommunications equipment and networking companies; failure to grow the Company's customer base or generate recurring business from existing customers; credit risks; the timing of customer purchasing decisions and the Company's recognition of revenues; macroeconomic conditions, including inflation; the Company's ability to adapt to rapid technological and market changes; the Company's ability to generate positive returns on its research and development; the Company's ability to protect its intellectual property rights and obtain necessary licenses; the Company's ability to maintain partner, reseller, distribution and vendor support and supply relationships; the potential for defects in the Company's products; risks related to the terms of the Company's credit agreement; higher risks in international operations and markets; currency fluctuations; unanticipated adverse changes in legal, regulatory or tax laws; future accounting pronouncements or changes in the Company's accounting policies and/or failure or circumvention of the Company's controls and procedures. We therefore caution you against relying on any of these forward-looking statements.

These factors are not intended to be an all-encompassing list of risks and uncertainties that may affect the Company's business and results from operations. Additional information regarding these and other factors can be found in the Company's reports filed with the Securities and Exchange Commission, including, without limitation, its Form 10-K for the year ended December 31, 2024. Any forward-looking statement made by the Company in this release speaks only as of the date on which this release was first issued. The Company undertakes no obligation to update any forward-looking statement publicly or otherwise, whether as a result of new information, future developments or otherwise, except as required by law.

D iscussion of Non-GAAP Financial Measures

The Company's management uses several different financial measures, both GAAP and non-GAAP, in analyzing and assessing the overall performance of its business, making operating decisions, planning and forecasting future periods, and determining payments under compensation programs. The Company considers the use of non-GAAP financial measures helpful in assessing the core performance of its continuing operations and when planning and forecasting future periods. The Company's annual financial plan is prepared on a non-GAAP basis and is approved by its board of directors. In addition, budgeting and forecasting for revenue and expenses are conducted on a non-GAAP basis, and actual results on a non-GAAP basis are assessed against the annual financial plan. The Company defines continuing operations as the ongoing results of its business adjusted for certain expenses and credits, as described below. The Company believes that providing non-GAAP information to investors allows them to view the Company's financial results in the way its management views them and helps investors to better understand the Company's core financial and operating performance and evaluate the efficacy of the methodology and information used by its management to evaluate and measure such performance.

While the Company's management uses non-GAAP financial measures as tools to enhance its understanding of certain aspects of the Company's financial performance, management does not consider these measures to be a substitute for, or superior to, GAAP measures. In addition, the Company's presentations of these measures may not be comparable to similarly titled measures used by other companies. These non-GAAP financial measures should not be considered alternatives for, or in isolation from, the financial information prepared and presented in accordance with GAAP. Investors are cautioned that there are material limitations associated with the use of non-GAAP financial measures. In particular, many of the adjustments to the Company's financial measures reflect the exclusion of items that are recurring and will be reflected in its financial results for the foreseeable future.

Stock-Based Compensation

The expense related to stock-based awards is generally not controllable in the short-term and can vary significantly based on the timing, size and nature of awards granted. The Company believes that presenting non-GAAP operating results that exclude stock-based compensation provides investors with visibility and insight into its management's method of analysis and its core operating performance.

Amortization of Acquired Technology (including software licenses); Amortization of Acquired Intangible Assets

Amortization amounts are inconsistent in frequency and amount and are significantly impacted by the timing and size of acquisitions. Amortization of acquired technology is reported separately within Cost of revenue and Amortization of acquired intangible assets is reported separately within Operating expenses. These items are reported collectively as Amortization of acquired intangible assets in the accompanying reconciliations of non-GAAP and GAAP financial measures. The Company believes that excluding non-cash amortization of these intangible assets facilitates the comparison of its financial results to its historical operating results and to other companies in its industry as if the acquired intangible assets had been developed internally rather than acquired.

Litigation Costs

In connection with certain ongoing litigation where Ribbon is the defendant (as described in the Company's Commitments and Contingencies footnotes in its Form 10-Qs and Form 10-Ks filed with the SEC, the Company has incurred litigation costs beginning in 2023.  These costs are included as a component of general and administrative expense. The Company believes that such costs are not part of its core business or ongoing operations, are unplanned, and generally are not within its control. Accordingly, the Company believes that excluding litigation costs related to these specific legal matters facilitates the comparison of the Company's financial results to its historical operating results and to other companies in its industry.

Acquisition-, Disposal- and Integration-Related

The Company considers certain acquisition-, disposal- and integration-related costs to be unrelated to the organic continuing operations of the Company and its acquired businesses.  Such costs are generally not relevant to assessing or estimating the long-term performance of the acquired assets. In 2025, the Company recorded expense for legal and professional fees associated with contemplated corporate development activities. The Company excludes such acquisition-, disposal- and integration-related costs to allow more accurate comparisons of its financial results to its historical operations and the financial results of less acquisitive peer companies and allows management and investors to consider the ongoing operations of the business both with and without such expenses.

Restructuring and Related

The Company has recorded restructuring and related expense to streamline operations and reduce operating costs by closing and consolidating certain facilities and reducing its worldwide workforce. The Company believes that excluding restructuring and related expense facilitates the comparison of its financial results to its historical operating results and to other companies in its industry, as there are no future revenue streams or other benefits associated with these costs.

Preferred Stock and Warrant Liability Mark-to-Market Adjustment

The Company recorded adjustments to the fair value of its Series A Preferred Stock and Warrants to purchase shares of the Company's common stock in Other (expense) income, net. Both of these instruments were issued in March 2023 in connection with the Company's private placement and have been classified as liabilities and marked to market each reporting period until the Series A Preferred Stock was fully redeemed on June 25, 2024. The Warrant liability remains outstanding and will continue to be marked to market each reporting period. The Company excluded these gains and losses from the change in the fair value of these liabilities because it believes that such gains or losses were not part of its core business or ongoing operations.

Tax Effect of Non-GAAP Adjustments

The Non-GAAP income tax provision is presented based on an estimated tax rate applied against forecasted annual non-GAAP income. The Company computes its non-GAAP estimated tax rate using its estimated GAAP annual effective tax rate for the period and adjusting for the tax effect of pre-tax non-GAAP adjustments. The Company computes a single annual non-GAAP rate for the Company and applying that rate (rather than multiple rates by jurisdiction) to its consolidated quarterly results. The Company expects that this methodology will provide a consistent rate throughout the year and allow investors to better understand the impact of income taxes on its results. Due to the methodology applied to its estimated annual tax rate, the Company's estimated tax rate on non-GAAP income will differ from its GAAP tax rate and from its actual tax liabilities.

Adjusted EBITDA

The Company uses Adjusted EBITDA as a supplemental measure to review and assess its performance. The Company calculates Adjusted EBITDA by excluding from income (loss) from operations: depreciation; stock-based compensation; amortization of acquired intangible assets; certain litigation costs; acquisition-, disposal- and integration-related expense; and restructuring and related expense. In general, the Company excludes the expenses that it considers to be non-cash and/or not a part of its ongoing operations. The Company may exclude other items in the future that have those characteristics. Adjusted EBITDA is a non-GAAP financial measure that is used by the investing community for comparative and valuation purposes. The Company discloses this metric to support and facilitate dialogue with research analysts and investors. Other companies may calculate Adjusted EBITDA differently than the Company does, limiting its usefulness as a comparative measure.

RIBBON COMMUNICATIONS INC.

Consolidated Statements of Operations

(in thousands, except percentages and per share amounts)

(unaudited)













































 Three months ended 









September 30,



June 30



September 30,









2025



2025



2024

Revenue:















Product

$         109,979



$               115,057



$         112,151



Service

105,392



105,526



98,087





Total revenue

215,371



220,583



210,238



















Cost of revenue:













Product

62,037



66,746



59,405



Service

40,311



39,253



34,893



Amortization of acquired technology

5,057



5,277



6,323





Total cost of revenue

107,405



111,276



100,621



















Gross profit

107,966



109,307



109,617



















Gross margin

50.1 %



49.6 %



52.1 %



















Operating expenses:













Research and development

45,894



44,696



45,645



Sales and marketing

33,063



32,536



33,060



General and administrative

16,368



16,630



21,588



Amortization of acquired intangible assets

5,933



5,975



6,457



Acquisition-, disposal- and integration-related

439



3,898



-



Restructuring and related

3,506



1,346



3,794





Total operating expenses

105,203



105,081



110,544



















Income (loss) from operations

2,763



4,226



(927)

Interest expense, net

(11,606)



(10,977)



(11,952)

Other (expense) income, net

(134)



(2,159)



1,056



















Income (loss) before income taxes

(8,977)



(8,910)



(11,823)

Income tax benefit (provision)

(3,132)



(2,183)



(1,599)



















Net income (loss)

$         (12,109)



$               (11,093)



$         (13,422)



















Earnings (loss) per share:













Basic



$             (0.07)



$                   (0.06)



$             (0.08)



Diluted

$             (0.07)



$                   (0.06)



$             (0.08)



















Weighted average shares used to compute earnings (loss) per share:    













Basic



176,620



176,749



174,613



Diluted

176,620



176,749



174,613

 

RIBBON COMMUNICATIONS INC.

Consolidated Statements of Operations

(in thousands, except percentages and per share amounts)

(unaudited)





































Nine months ended









September 30,



September 30,









2025



2024

Revenue:











Product

$         307,027



$         298,894



Service

310,206



283,628





Total revenue

617,233



582,522















Cost of revenue:









Product

186,676



160,044



Service

115,192



103,633



Amortization of acquired technology

15,722



19,406





Total cost of revenue

317,590



283,083















Gross profit

299,643



299,439















Gross margin

48.5 %



51.4 %















Operating expenses:









Research and development

134,158



134,897



Sales and marketing

97,387



100,760



General and administrative

48,126



51,680



Amortization of acquired intangible assets

18,063



19,671



Acquisition-, disposal- and integration-related

4,337



-



Restructuring and related

10,193



8,779





Total operating expenses

312,264



315,787















Income (loss) from operations

(12,621)



(16,348)

Interest expense, net

(33,083)



(21,818)

Other (expense) income, net

836



(15,960)















Income (loss) before income taxes

(44,868)



(54,126)

Income tax benefit (provision)

(4,561)



(6,473)















Net loss



$         (49,429)



$         (60,599)















Earnings (loss) per share:









Basic



$             (0.28)



$             (0.35)



Diluted

$             (0.28)



$             (0.35)















Weighted average shares used to compute earnings (loss) per share:    









Basic



176,366



173,615



Diluted

176,366



173,615

 

RIBBON COMMUNICATIONS INC.

Consolidated Balance Sheets

(in thousands)

(unaudited)





































September 30,



December 31,









2025



2024

Assets







Current assets:









Cash and cash equivalents

$           74,799



$           87,770



Restricted cash

1,968



2,709



Accounts receivable, net

218,312



254,718



Inventory

80,007



79,179



Other current assets

43,341



39,286





Total current assets

418,427



463,662















Property and equipment, net

66,427



60,364

Intangible assets, net

153,752



187,537

Goodwill



300,892



300,892

Deferred income taxes

91,117



88,982

Operating lease right-of-use assets

48,204



34,544

Other assets

26,415



26,573









$      1,105,234



$      1,162,554















Liabilities and Stockholders' Equity







Current liabilities:









Current portion of term debt

$             8,750



$             6,125



Accounts payable

76,743



87,759



Accrued expenses and other

88,069



106,251



Operating lease liabilities

11,615



9,443



Deferred revenue

106,697



119,295





Total current liabilities

291,874



328,873















Long-term debt, net of current

326,075



330,726

Warrant liability

5,103



8,064

Operating lease liabilities, net of current

61,806



37,376

Deferred revenue, net of current

29,748



20,991

Deferred income taxes

5,941



5,941

Other long-term liabilities

24,635



25,962







Total liabilities

745,182



757,933















Commitments and contingencies





















Stockholders' equity:









Common stock

18



18



Additional paid-in capital

1,975,925



1,970,708



Accumulated deficit

(1,623,614)



(1,574,185)



Accumulated other comprehensive income    

7,723



8,080







Total stockholders' equity

360,052



404,621









$      1,105,234



$      1,162,554

 

RIBBON COMMUNICATIONS INC.

Consolidated Statements of Cash Flows

(in thousands)

(unaudited)











































Nine months ended











 September 30, 



 September 30, 











2025



2024

Cash flows from operating activities:









Net loss



$           (49,429)



$           (60,599)



Adjustments to reconcile net loss to cash flows (used in) provided by operating activities:    











Depreciation and amortization of property and equipment

12,182



10,131





Amortization of intangible assets

33,785



39,077





Amortization of debt issuance costs and original issue discount

2,102



4,137





Amortization of accumulated other comprehensive gain related to interest rate swap

-



(8,196)





Stock-based compensation

14,619



12,061





Deferred income taxes

52



(14,614)





Change in fair value of warrant liability

(2,811)



292





Change in fair value of preferred stock liability

-



8,091





Dividends accrued on preferred stock liability

-



2,743





Payment of dividends accrued on preferred stock liability

-



(6,686)





Foreign currency exchange (gains) losses

1,698



1,357





Changes in operating assets and liabilities:













Accounts receivable

34,258



18,896







Inventory

(382)



(1,630)







Other operating assets

822



9,456







Accounts payable

(5,017)



(7,580)







Accrued expenses and other long-term liabilities

(15,880)



1,624







Deferred revenue

(3,840)



(20,087)









Net cash (used in) provided by operating activities

22,159



(11,527)

















Cash flows from investing activities:









Purchases of property and equipment

(23,368)



(14,428)



Purchases of software licenses

-



(462)









Net cash (used in) provided by investing activities

(23,368)



(14,890)

















Cash flows from financing activities:









Borrowings under revolving line of credit

-



44,106



Principal payments on revolving line of credit

-



(44,106)



Proceeds from issuance of term debt

-



342,300



Principal payments of term debt

(3,938)



(236,270)



Payment of debt issuance costs

-



(5,985)



Payment of preferred stock liability

-



(56,850)



Proceeds from the exercise of stock options

6



17



Payment of tax obligations related to vested stock awards and units

(3,827)



(3,035)



Repurchase of common stock

(5,731)



-









Net cash (used in) provided by financing activities

(13,490)



40,177

















Effect of exchange rate changes on cash and cash equivalents

987



(297)

















Net (decrease) increase in cash and cash equivalents

(13,712)



13,463

Cash, cash equivalents and restricted cash, beginning of year

90,479



26,630

Cash, cash equivalents and restricted cash, end of period

$             76,767



$             40,093

 

RIBBON COMMUNICATIONS INC.

Supplemental Information

(in thousands)

(unaudited)





















































The following tables provide the details of stock-based compensation included as components of other line items in the Company's

Consolidated Statements of Operations and the line items in which these amounts are reported.  





























































 Three months ended 



 Nine months ended 









September 30,



June 30



September 30,



September 30,



September 30,









2025



2025



2024



2025



2024

Stock-based compensation



















Cost of revenue - product

$                17



$                33



$                64



$              116



$              234

Cost of revenue - service

152



198



291



636



1,037



Cost of revenue

169



231



355



752



1,271



























Research and development

398



455



745



1,578



2,429

Sales and marketing

1,493



1,066



1,108



3,732



3,219

General and administrative

3,784



2,725



1,837



8,557



5,142



Operating expense

5,675



4,246



3,690



13,867



10,790































Total stock-based compensation    

$           5,844



$           4,477



$           4,045



$         14,619



$         12,061

 

RIBBON COMMUNICATIONS INC.

Reconciliation of Non-GAAP and GAAP Financial Measures

(in thousands, except per share amounts)

(unaudited)



























 Three months ended 



September 30,



June 30



September 30,



2025



2025



2024













GAAP Gross margin

50.1 %



49.6 %



52.1 %

Stock-based compensation

0.1 %



0.1 %



0.2 %

Amortization of acquired technology

2.4 %



2.4 %



3.0 %

Non-GAAP Gross margin

52.6 %



52.1 %



55.3 %













GAAP Net income (loss)

$         (12,109)



$         (11,093)



$         (13,422)

Stock-based compensation

5,844



4,477



4,045

Amortization of intangible assets

10,990



11,252



12,780

Litigation costs

952



2,314



6,896

Acquisition-, disposal- and integration-related

439



3,898



-

Restructuring and related

3,506



1,346



3,794

Preferred stock and warrant liability mark-to-market adjustment

(1,170)



94



(583)

Tax effect of non-GAAP adjustments

(1,501)



(2,679)



(5,024)

Non-GAAP Net income (loss)

$             6,951



$             9,609



$             8,486













GAAP Diluted earnings (loss) per share

$             (0.07)



$             (0.06)



$             (0.08)

Stock-based compensation

0.04



0.02



0.02

Amortization of intangible assets

0.06



0.06



0.08

Litigation costs

0.01



0.01



0.04

Acquisition-, disposal- and integration-related

 * 



0.02



-

Restructuring and related

0.02



0.01



0.02

Preferred stock and warrant liability mark-to-market adjustment

(0.01)



 * 



 * 

Tax effect of non-GAAP adjustments

(0.01)



(0.01)



(0.03)

Non-GAAP Diluted earnings (loss) per share

$               0.04



$               0.05



$               0.05













Weighted average shares used to compute diluted earnings (loss) per share      











 Shares used to compute GAAP diluted earnings (loss) per share

176,620



176,749



174,613

 Shares used to compute Non-GAAP diluted earnings (loss) per share

181,033



179,884



177,028













GAAP Income (loss) from operations

$             2,763



$             4,226



$              (927)

Depreciation

4,425



4,288



3,361

Stock-based compensation

5,844



4,477



4,045

Amortization of intangible assets

10,990



11,252



12,780

Litigation costs

952



2,314



6,896

Acquisition-, disposal- and integration-related

439



3,898



-

Restructuring and related

3,506



1,346



3,794

Non-GAAP Adjusted EBITDA

$           28,919



$           31,801



$           29,949













* Less than $0.01 impact on earnings (loss) per share.











 

RIBBON COMMUNICATIONS INC.

Reconciliation of Non-GAAP and GAAP Financial Measures

(in thousands, except per share amounts)

(unaudited)



















Nine months ended



September 30,



September 30,



2025



2024









GAAP Gross Margin

48.5 %



51.4 %

Stock-based compensation

0.1 %



0.2 %

Amortization of acquired technology

2.6 %



3.4 %

Non-GAAP Gross Margin

51.2 %



55.0 %









GAAP Net income (loss)

$         (49,429)



$         (60,599)

Stock-based compensation

14,619



12,061

Amortization of intangible assets

33,785



39,077

Litigation costs

4,066



9,615

Acquisition-, disposal- and integration-related

4,337



-

Restructuring and related

10,193



8,779

Preferred stock and warrant liability mark-to-market adjustment

(2,811)



11,126

Tax effect of non-GAAP adjustments

(2,779)



(4,148)

Non-GAAP Net income (loss)

$           11,981



$           15,911









GAAP Diluted earnings (loss) per share

$             (0.28)



$             (0.35)

Stock-based compensation

0.08



0.07

Amortization of intangible assets

0.19



0.23

Litigation costs

0.02



0.05

Acquisition-, disposal- and integration-related

0.03



-

Restructuring and related

0.06



0.05

Preferred stock and warrant liability mark-to-market adjustment

(0.01)



0.06

Tax effect of non-GAAP adjustments

(0.02)



(0.02)

Non-GAAP Diluted earnings (loss) per share

$               0.07



$               0.09









Weighted average shares used to compute diluted earnings (loss) per share      







 Shares used to compute GAAP diluted earnings (loss) per share

176,366



173,615

 Shares used to compute Non-GAAP diluted earnings (loss) per share

180,512



176,416









GAAP Income (loss) from operations

$         (12,621)



$         (16,348)

Depreciation

12,182



10,131

Stock-based compensation

14,619



12,061

Amortization of intangible assets

33,785



39,077

Litigation costs

4,066



9,615

Acquisition-, disposal- and integration-related

4,337



-

Restructuring and related

10,193



8,779

Non-GAAP Adjusted EBITDA

$           66,561



$           63,315









* Less than $0.01 impact on earnings (loss) per share.







 

RIBBON COMMUNICATIONS INC.

Reconciliation of Non-GAAP and GAAP Financial Measures

(in thousands)

(unaudited)































Trailing Twelve Months







September 30,



June 30



September 30,



2025



2025



2024













GAAP Income (loss) from operations

$           20,599



$           16,909



$                322

Depreciation

15,590



14,526



13,633

Stock-based compensation

18,644



16,845



16,953

Amortization of intangible assets

45,570



47,360



52,243

Litigation costs

5,649



11,593



10,153

Acquisition-, disposal- and integration-related    

4,337



3,898



1,494

Restructuring and related

11,574



11,862



11,064

Non-GAAP Adjusted EBITDA

$         121,963



$         122,993



$         105,862

 

RIBBON COMMUNICATIONS INC.

Reconciliation of Non-GAAP and GAAP Financial Measures - Outlook

(unaudited)









































































 Three months ending  



 Year ending  







December 31, 2025



December 31, 2025







Midpoint (1)





Range



Midpoint (1)



Range























Revenue ($ millions)

$               240





 +/- $10M



$               857



+/- $10M























Gross margin:



















GAAP outlook

53.3 %









50.0 %







Stock-based compensation

0.2 %









0.2 %







Amortization of acquired technology

2.0 %









2.3 %









Non-GAAP outlook

55.5 %





+/- 0.5%



52.5 %



+/- 0.2%























Adjusted EBITDA ($ millions):



















GAAP income (loss) from operations

$              24.0









$              11.7







Depreciation

4.4









16.6







Stock-based compensation

4.0









18.7







Amortization of intangible assets

10.6









44.4







Litigation costs

0.3









4.4







Acquisition-, disposal- and integration-related    

-









4.3







Restructuring and related

1.7









11.9









Non-GAAP outlook

$              45.0





 +/- $3M



$            112.0



+/- $3M















































(1) Q4 2025 and FY 2025 outlook represents the midpoint of the expected ranges









 

Cision
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SOURCE Ribbon Communications Inc.

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