# Ribbon Communications Inc.: overview

RBBN · Nasdaq · CIK 1708055 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/rbbn.md) · [Financials](/companies/rbbn/financials.md) · [Filings](/companies/rbbn/filings.md) · [Insiders](/companies/rbbn/insiders.md)

Latest reported revenue: [$192.3m](/filings/0001708055-26-000070.md) for Q2 FY2027, three months to 2026-06-30, from the 10-Q filed Jul 31, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001708055-26-000070).

## Last eight quarters

| Line item | Unit | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2027 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [210](/filings/0001708055-25-000035.md) | [251 d](/filings/0001708055-26-000012.md) | [181](/filings/0001708055-26-000028.md) | [221](/filings/0001708055-26-000070.md) | [215](/filings/0001708055-25-000035.md) | [227 d](/filings/0001708055-26-000012.md) | [163](/filings/0001708055-26-000028.md) | [192](/filings/0001708055-26-000070.md) |
| Gross margin | % | [52.1%](/filings/0001708055-25-000035.md) | [55.7% d](/filings/0001708055-26-000012.md) | [45.4%](/filings/0001708055-26-000028.md) | [49.6%](/filings/0001708055-26-000070.md) | [50.1%](/filings/0001708055-25-000035.md) | [53.3% d](/filings/0001708055-26-000012.md) | [42.9%](/filings/0001708055-26-000028.md) | [47.0%](/filings/0001708055-26-000070.md) |
| Operating margin | % | [(0.4%)](/filings/0001708055-25-000035.md) | [13.2% d](/filings/0001708055-26-000012.md) | [(10.8%)](/filings/0001708055-26-000028.md) | [1.9%](/filings/0001708055-26-000070.md) | [1.3%](/filings/0001708055-25-000035.md) | [4.1% d](/filings/0001708055-26-000012.md) | [(19.5%)](/filings/0001708055-26-000028.md) | [(6.4%)](/filings/0001708055-26-000070.md) |
| Net margin | % | [(6.4%)](/filings/0001708055-25-000035.md) | [2.5% d](/filings/0001708055-26-000012.md) | [(14.5%)](/filings/0001708055-26-000028.md) | [(5.0%)](/filings/0001708055-26-000070.md) | [(5.6%)](/filings/0001708055-25-000035.md) | [39.2% d](/filings/0001708055-26-000012.md) | [(21.2%)](/filings/0001708055-26-000028.md) | [(14.0%)](/filings/0001708055-26-000070.md) |
| Diluted EPS | $ per share | [(0.08)](/filings/0001708055-25-000035.md) | not reported | [(0.15)](/filings/0001708055-26-000028.md) | [(0.06)](/filings/0001708055-26-000070.md) | [(0.07)](/filings/0001708055-25-000035.md) | not reported | [(0.20)](/filings/0001708055-26-000028.md) | [(0.15)](/filings/0001708055-26-000070.md) |
| Free cash flow | $m | [(23.7) d](/filings/0001708055-25-000035.md) | [53.8 d](/filings/0001708055-26-000012.md) | [(15.7)](/filings/0001708055-26-000028.md) | [(6.5) d](/filings/0001708055-26-000070.md) | [21.0 d](/filings/0001708055-25-000035.md) | [27.3 d](/filings/0001708055-26-000012.md) | [(25.1)](/filings/0001708055-26-000028.md) | [(15.8) d](/filings/0001708055-26-000070.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 9-month figure less the 6-month figure; 12-month figure less the 9-month figure; 6-month figure less the 3-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [845](/filings/0001708055-24-000003.md) | [820](/filings/0001558370-25-001773.md) | [826](/filings/0001708055-26-000012.md) | [834](/filings/0001708055-26-000012.md) | [845](/filings/0001708055-26-000012.md) |
| Gross margin | % | [52.6%](/filings/0001708055-24-000003.md) | [48.9%](/filings/0001558370-25-001773.md) | [49.4%](/filings/0001708055-26-000012.md) | [52.7%](/filings/0001708055-26-000012.md) | [49.8%](/filings/0001708055-26-000012.md) |
| Operating margin | % | [(13.9%)](/filings/0001708055-24-000003.md) | [(5.9%)](/filings/0001558370-25-001773.md) | [(2.9%)](/filings/0001708055-26-000012.md) | [2.0%](/filings/0001708055-26-000012.md) | [(0.4%)](/filings/0001708055-26-000012.md) |
| Net margin | % | [(21.0%)](/filings/0001708055-24-000003.md) | [(12.0%)](/filings/0001558370-25-001773.md) | [(8.0%)](/filings/0001708055-26-000012.md) | [(6.5%)](/filings/0001708055-26-000012.md) | [4.7%](/filings/0001708055-26-000012.md) |
| Diluted EPS | $ per share | [(1.20)](/filings/0001708055-24-000003.md) | [(0.63)](/filings/0001558370-25-001773.md) | [(0.39)](/filings/0001708055-26-000012.md) | [(0.31)](/filings/0001708055-26-000012.md) | [0.22](/filings/0001708055-26-000012.md) |
| Free cash flow | $m | [2.1](/filings/0001708055-24-000003.md) | [(36.6)](/filings/0001558370-25-001773.md) | [7.7](/filings/0001708055-26-000012.md) | [27.8](/filings/0001708055-26-000012.md) | [26.1](/filings/0001708055-26-000012.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Gross profit: us-gaap:GrossProfit; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/rbbn/insiders.md)

| Date | Insider | Role | Transaction | Shares | Reported price | Value | Filing |
| --- | --- | --- | --- | ---: | ---: | ---: | --- |
| 2025-04-09 | [Jpmorgan Chase & Co](/insiders/19617.md) | 10% owner | Sale (S) | 14 | $0.00 | $0 | [Form 4](/filings/0000019617-25-000335.md) |
| 2025-04-09 | [Jpmorgan Chase & Co](/insiders/19617.md) | 10% owner | Purchase (P) | 14 | $3.67 | $51.38 | [Form 4](/filings/0000019617-25-000335.md) |
| 2022-08-12 | [Jpmorgan Chase & Co](/insiders/19617.md) | 10% owner | Purchase (P) | 1,639,344 | $3.05 | $5.0m | [Form 4](/filings/0000019617-22-000457.md) |
| 2022-08-11 | [Jpmorgan Chase & Co](/insiders/19617.md) | 10% owner | Purchase (P) | 3,329 | $3.28 | $10.9k | [Form 4](/filings/0000019617-22-000457.md) |

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [JPMORGAN CHASE & CO](/funds/19617.md) | 2026-06-30 | $115.5m | 52,042,936 |  | Reduced −100 |
| [NEUBERGER BERMAN GROUP LLC](/funds/1465109.md) | 2026-06-30 | $38.7m | 18,311,073 |  | Added +949,085 |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $16.7m | 7,146,590 |  | Added +422,583 |
| [DIMENSIONAL FUND ADVISORS LP](/funds/354204.md) | 2026-06-30 | $14.7m | 6,286,323 |  | Reduced −64,787 |
| [ROYCE & ASSOCIATES LP](/funds/906304.md) | 2026-06-30 | $11.9m | 5,090,927 |  | Added +211,186 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $9.2m | 3,925,626 |  | Reduced −290,833 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $8.2m | 3,513,067 |  | Added +177,402 |
| [PARADIGM CAPITAL MANAGEMENT INC/NY](/funds/1037792.md) | 2026-06-30 | $7.1m | 3,036,398 |  | Reduced −4,999,937 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $5.8m | 2,485,064 |  | Added +70,504 |
| [Connor, Clark & Lunn Investment Management Ltd.](/funds/1596800.md) | 2026-06-30 | $5.2m | 2,213,134 |  | Added +123,412 |

## Recent filings

[All 710 filings](/companies/rbbn/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-07-31 | 11:26 ET | [10-Q](/filings/0001708055-26-000070.md) | Quarterly report, period 2026-06-30 | 0001708055-26-000070 |
| 2026-07-28 | 16:09 ET | [8-K](/filings/0001104659-26-087534.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-087534 |
| 2026-06-17 | 09:19 ET | [8-K](/filings/0001104659-26-074930.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-074930 |
| 2026-06-05 | 16:15 ET | [8-K](/filings/0001104659-26-070981.md) | 5.07 Shareholder vote results | 0001104659-26-070981 |
| 2026-05-06 | 12:49 ET | [10-Q](/filings/0001708055-26-000028.md) | Quarterly report, period 2026-03-31 | 0001708055-26-000028 |
| 2026-04-28 | 16:15 ET | [8-K](/filings/0001104659-26-050356.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-050356 |
| 2026-04-17 | 08:30 ET | [DEF 14A](/filings/0001104659-26-044643.md) | Proxy statement, period 2026-06-03 | 0001104659-26-044643 |
| 2026-04-15 | 08:45 ET | [8-K](/filings/0001104659-26-043511.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-043511 |
| 2026-02-26 | 12:38 ET | [10-K](/filings/0001708055-26-000012.md) | Annual report, period 2025-12-31 | 0001708055-26-000012 |
| 2026-02-05 | 16:15 ET | [8-K](/filings/0001104659-26-010898.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-010898 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0001708055-26-000012.md), filed Feb 26, 2026.

## Forecast league

Q3 FY2027, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/03e2a95b-db05-4226-a383-a5d747a74f79)

## About the filer

- CIK: 1708055
- Tickers: RBBN
- Exchange: Nasdaq
- SIC code: 7373 Services-Computer Integrated Systems Design
- State of incorporation: DE
- Filer category: Accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 27, 2026, 16:21 ET. No prices; not investment advice.