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NASDAQ · Technology

Ribbon Communications Inc. (RBBN)

Ribbon Communications Inc. brought in $801M of revenue over the twelve months to September 30, 2026, down 7.8% from a year earlier. Net income was $18.6M, a net margin of 2.3%. Operating cash flow minus capital spending left $26.1M of free cash flow in fiscal 2025. At September 30, 2026 it held $40.4M in cash against $350.6M of debt. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on October 28, 2026.

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Price
$1.44
+6.67% on the day · November 9, 2026
52-week range $1.28 to $3.41
Market cap
$257.5M
Revenue (last 12 months)
$801M
-7.8% year on year
Net margin
2.3%
P/E
6.6
on FY2025 diluted EPS

Key facts about Ribbon Communications Inc.

Net worth
Ribbon Communications Inc. has a market value (market cap) of $257.5M at the latest share price, and shareholders' equity of $388.7M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.
Revenue and profit
In fiscal 2025 revenue was $844.6M (+1.3% year on year), with net income of $39.6M. Over the 12 months to September 30, 2026: revenue $801M, net income $18.6M.
Cash flow
In fiscal 2025 operations brought in $51.4M of cash; after $25.3M of capital spending, free cash flow was $26.1M.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on October 28, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
Next earnings report
Ribbon Communications Inc.'s next report is expected around February 4, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

What Ribbon Communications Inc. does

Ribbon Communications Inc. is registered with the SEC under industry code SIC 7373 (Services-Computer Integrated Systems Design). Its shares trade on NASDAQ under the ticker RBBN.

Revenue and profit by year

Revenue
FY18: $577.9M $577.9M FY18FY19: $563.1M $563.1M FY19FY20: $843.8M $843.8M FY20FY21: $845M $845M FY21FY22: $819.8M $819.8M FY22FY23: $826.3M $826.3M FY23FY24: $833.9M $833.9M FY24FY25: $844.6M $844.6M FY25
Net income
FY18: -$76.8M -$76.8M FY18FY19: -$130.1M -$130.1M FY19FY20: $88.6M $88.6M FY20FY21: -$177.2M -$177.2M FY21FY22: -$98.1M -$98.1M FY22FY23: -$66.2M -$66.2M FY23FY24: -$54.2M -$54.2M FY24FY25: $39.6M $39.6M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$844.6M-$3.3M$39.6M$0.22$26.1M
2024$833.9M$16.9M-$54.2M-$0.31$27.8M
2023$826.3M-$24.3M-$66.2M-$0.39$7.7M
2022$819.8M-$48.3M-$98.1M-$0.63-$36.6M
2021$845M-$117.8M-$177.2M-$1.20$2.1M
2020$843.8M$1.7M$88.6M$0.61$74.8M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around February 4, 2027.

Estimated from its filing rhythm: 52 weeks after its report of February 5, 2026. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where RBBN ranks in Technology

Revenue$844.6M
#252 of 751 in Technology · Top 33%
Revenue growth+1.3%
#448 of 604 in Technology · Bottom 26%
Net margin4.7%
#262 of 611 in Technology · Top 43%
Free cash flow margin3.1%
#371 of 568 in Technology · Bottom 35%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Technology

Latest SEC filings

What Ribbon Communications Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. October 28, 2026
    Quarterly report 10-Q · period to September 30, 2026Revenue rose 1.6% to $218.7M versus the same quarter last year; diluted EPS -$0.05 versus -$0.07.
  2. October 27, 2026
  3. July 31, 2026
    Quarterly report 10-Q · period to June 30, 2026Revenue fell 13% to $192.3M versus the same quarter last year; diluted EPS -$0.15 versus -$0.06.
  4. July 28, 2026
  5. June 17, 2026
  6. June 5, 2026
  7. May 29, 2026
  8. May 6, 2026
    Quarterly report 10-Q · period to March 31, 2026Revenue fell 10% to $162.6M versus the same quarter last year; diluted EPS -$0.20 versus -$0.15.
  9. April 28, 2026
  10. April 17, 2026

Recent insider filings (Forms 3, 4 and 144): 10, the latest on November 3, 2026. Insider transactions on SEC

What is RBBN worth? A DCF from its reported cash flow

Insider trades

What the people running Ribbon Communications Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

Insiders bought $96.2K worth of shares on the open market in the last 90 days and sold none.

Bought (open market)
$96.2K
last 90 days
Sold
$0
last 90 days
Net bought
60,000
$96.2K
DateInsiderWhatSharesPriceValueFiling
October 31, 2026 McCaffery Stephen J.EVP, Global Sales Exercised options 36,003 - - Form 4
October 31, 2026 McCaffery Stephen J.EVP, Global Sales Shares withheld for tax 16,921 $1.55 $26.2K Form 4
October 31, 2026 McCaffery Stephen J.EVP, Global Sales Exercised options 108,006 - - Form 4
October 31, 2026 McCaffery Stephen J.EVP, Global Sales Shares withheld for tax 50,762 $1.55 $78.7K Form 4
October 30, 2026 McClelland Bruce WilliamPresident & CEO, Director Bought 60,000 $1.60 $96.2K Form 4
October 15, 2026 Shani ShaulDirector Received as pay 15,625 - - Form 4
October 15, 2026 Shani ShaulDirector Exercised options 185,210 - - Form 4
October 15, 2026 Grayson Bruns HDirector Received as pay 19,176 - - Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns RBBN

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Paradigm Capital Management Inc13G, passive 5% 8,748,200 August 14, 2025

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

12 insiders reported holding 7,229,208 shares in total, about $10.4M at the last price.

HolderSharesAs of
McClelland Bruce WilliamPresident & CEO, Director 2,969,454 October 30, 2026
Grayson Bruns HDirector 859,446 October 15, 2026
Bucci SamEVP, Chief Operating Officer 599,271 May 15, 2026
Marmurek Eric SEVP, Chief Financial Officer 566,450 October 15, 2026
Macken Patrick WEVP, Chief Legal Officer 482,146 May 15, 2026
Shani ShaulDirector 438,553 October 15, 2026
Infante Beatriz VDirector 385,724 June 16, 2026
Ewing R Stewart JrDirector 239,891 June 16, 2026
Tamone TanyaDirector 223,300 June 16, 2026
Mair ScottDirector 208,138 June 16, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about RBBN

What does Ribbon Communications Inc. do?

Ribbon Communications Inc. is a company in the Technology sector, listed on NASDAQ as RBBN. Its shares trade on NASDAQ under the ticker RBBN.

What is Ribbon Communications Inc.'s net worth?

Ribbon Communications Inc. has a market value (market cap) of $257.5M at the latest share price, and shareholders' equity of $388.7M on its balance sheet at September 30, 2026. A company's "net worth" usually means one of these: what the market pays for all its shares, or its assets minus its liabilities.

Is Ribbon Communications Inc. profitable?

Yes. Over the twelve months to September 30, 2026 it reported net income of $18.6M on revenue of $801M, a net margin of 2.3%.

How much revenue does Ribbon Communications Inc. make?

Over the twelve months to September 30, 2026 Ribbon Communications Inc. reported revenue of $801M. That is 7.8% less than a year earlier.

When did Ribbon Communications Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on October 28, 2026. It covers the period to September 30, 2026. Its newest filing of any kind is the insider trade from November 3, 2026.

When is Ribbon Communications Inc.'s next earnings report?

Ribbon Communications Inc.'s next report is expected around February 4, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values Ribbon Communications Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.