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Companies / Information Technology / Ribbon Communications Inc.
RBBN

Ribbon Communications Inc.

Information TechnologyBusiness Services & Software
Ticker RBBNPLANO, TXFiscal year ends DecemberBook value per share $2.19Diluted shares 177.3M

Ribbon Communications Inc. (Nasdaq: RBBN) provides communications technology to service providers and enterprises, including software, hardware, network solutions, and services for secure voice and data communications, broadband connectivity, and high-bandwidth networking. Its customers include fixed and wireless… From the company’s description.

Over the twelve months to Sep 30, 2026, Ribbon Communications Inc. reported revenue of $800.98M, down 7.8% from a year earlier, and net income of $18.59M. Its operating margin was −3.6%, and operations used $18.68M in cash. In fiscal 2025, it reported revenue of $844.56M, up 1.3% from fiscal 2024, and net income of $39.64M.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-09-30
Sales & profitability
$844.56MFY2025
+1.3% year over year
Last 12 mo $800.98M
-0.39%FY2025
−2.4 percentage points
Last 12 mo -3.62%
$39.64MFY2025
+173.1% year over year
Last 12 mo $18.59M
8.83%FY2025
+20.2 percentage points
Last 12 mo 4.78%
Cash & financing
$51.40MFY2025
+2.3% year over year
Last 12 mo $-18.68M
$26.06MFY2025
−4.8% year over year
Last 12 mo $-29.67M
0.74FY2025
Was 0.83× a year earlier
Last 12 mo 0.88
179.8MFY2025
+3.3% year over year
Last 12 mo 177.3M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Ribbon Communications Inc. does

In the company’s own words

Ribbon Communications Inc. (Nasdaq: RBBN) provides communications technology to service providers and enterprises, including software, hardware, network solutions, and services for secure voice and data communications, broadband connectivity, and high-bandwidth networking. Its customers include fixed and wireless telephone companies, cable operators, cloud communications providers, businesses, and organizations in sectors such as government, utilities, transportation, finance, and education, across more than 140 countries. Ribbon operates two reportable segments: Cloud and Edge, which supplies voice-over-IP and unified communications products, network transformation software, session border controllers, and Acumen AI operations and automation tools; and IP Optical Networks, which provides IP routing, switching, optical transport, and network orchestration products. Major product families include Apollo optical transport, Neptune switching and routing, and Muse software-defined networking tools. The company formed in 2017 through the merger of Sonus Networks and GENBAND; its 2020 acquisition of ECI expanded its business into IP networking and optical transport. In fiscal 2025, revenue was approximately $<amount not provided>. Its website is https://www.ribboncommunications.com.

Company details
Sector
Information Technology
Industry (SIC)
Business Services & Software
Headquarters
PLANO, TX
Fiscal year end
December
CIK
1708055
SIC
7373

Financial performance, year by year

Fiscal 2017–2025 · USD
$-279.40M$27.24M$333.89M$640.53M$947.17M201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Ribbon Communications Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

156
funds hold it
0 of 35
superinvestors hold it
$84.97M
held by funds, at market
17.9%
of shares held by funds

Largest fund holders · Ribbon Communications Inc.’s weight in each

Neuberger Intrinsic Value Fund
NINAX · NEUBERGER BERMAN EQUITY FUNDS
—of fund net assets
—of fund net assets
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.01%of fund net assets
0.25%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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  • “How do Ribbon Communications Inc. and its peers compare on margins and cash generation over ten years?”
  • “Where did five years of Ribbon Communications Inc.'s earnings go — cash, debt, buybacks, reinvestment?”
  • “What changed in Ribbon Communications Inc.'s last four quarterly filings that the numbers alone won't show?”
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