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    RBBN

    Ribbon Communications Inc.

    Company overview

    Market capitalization
    $309.36M
    Employees
    3,080
    Latest publication
    2026-09-29
    About Ribbon Communications Inc.

    Ribbon Communications Inc. provides communications technology in the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments, Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment provides software and hardware products, solutions, and services for voice over internet protocol communications, voice over long-term evolution, and voice over 5G communications, and unified communications and collaboration. It also offers session border controllers; and network transformation products, such as call controllers, media gateways, and application servers. This segment serves private, public, hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. The IP Optical Networks segment provides hardware and software products and solutions for IP networking, switching, routing, and optical transport for technologies comprising 5G, distributed cloud computing, and corresponding applications. It also offers multiple solutions, including 5G-native solutions for mobile-backhaul, metro and edge aggregation, core networking, data center interconnect, multi-service access, and transport solutions for wholesale carriers. This segment serves utilities, government, defense, finance, transportation, and education and research industries, as well as service providers and enterprises. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Ribbon Communications Inc. was founded in 1997 and is headquartered in Plano, Texas.

    Company website

    Financial statements

    Income Quarterly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricQ2 20262026-06-30 · USDQ4 20252025-12-31 · USDQ3 20252025-09-30 · USDQ2 20252025-06-30 · USDQ4 20242024-12-31 · USDQ3 20242024-09-30 · USDQ2 20242024-06-30 · USDQ4 20232023-12-31 · USD
    Total Revenue192,340,000USD227,323,000USD215,371,000USD220,583,000USD251,359,000USD210,238,000USD192,620,000USD226,401,000USD
    Cost Of Revenue101,997,000USD112,046,000USD107,405,000USD111,276,000USD111,286,000USD100,621,000USD101,261,000USD111,554,000USD
    Gross Profit90,343,000USD115,277,000USD107,966,000USD109,307,000USD140,073,000USD109,617,000USD91,359,000USD114,847,000USD
    Research Development44,858,000USD44,714,000USD45,894,000USD44,696,000USD45,044,000USD45,645,000USD43,489,000USD45,351,000USD
    Selling And Marketing Expenses33,124,000USD35,688,000USD33,063,000USD32,536,000USD37,070,000USD33,060,000USD32,984,000USD35,361,000USD
    General And Administrative Expenses14,643,000USD———————
    Total Operating Expenses102,562,000USD96,515,000USD105,203,000USD105,081,000USD106,853,000USD110,544,000USD91,374,000USD94,398,000USD
    Operating Income-12,219,000USD18,762,000USD2,763,000USD4,226,000USD33,220,000USD-927,000USD-15,000USD20,449,000USD
    Total Other Income Expense Net-12,943,000USD-19,003,000USD-11,740,000USD-13,136,000USD-25,162,000USD-10,896,000USD-15,302,000USD-14,000,000USD
    Income Before Tax-25,162,000USD-241,000USD-8,977,000USD-8,910,000USD8,058,000USD-11,823,000USD-15,317,000USD6,449,000USD
    Income Tax Expense1,709,000USD-89,306,000USD3,132,000USD2,183,000USD1,694,000USD1,599,000USD1,499,000USD-630,000USD
    Net Income-26,871,000USD89,065,000USD-12,109,000USD-11,093,000USD6,364,000USD-13,422,000USD-16,816,000USD7,079,000USD
    Selling General Administrative—16,113,000USD16,368,000USD16,630,000USD17,060,000USD21,588,000USD14,901,000USD13,686,000USD
    Interest Income—143,000USD190,000USD322,000USD107,000USD67,000USD48,000USD64,000USD
    Interest Expense—11,071,000USD11,796,000USD11,299,000USD12,110,000USD12,019,000USD3,927,000USD7,053,000USD
    Net Interest Income—-10,928,000USD-11,606,000USD-10,977,000USD-12,003,000USD-11,952,000USD-3,879,000USD-6,989,000USD
    Tax Provision—-89,306,000USD3,132,000USD2,183,000USD1,694,000USD1,599,000USD1,499,000USD-630,000USD
    Net Income From Continuing Ops—89,065,000USD-12,109,000USD-11,093,000USD6,364,000USD-13,422,000USD-16,816,000USD7,079,000USD
    Ebit—10,687,000USD2,629,000USD2,389,000USD20,168,000USD196,000USD-11,390,000USD12,031,000USD
    Ebitda—25,641,000USD18,044,000USD17,929,000USD35,361,000USD16,337,000USD-1,506,000USD28,699,000USD
    Depreciation And Amortization—14,954,000USD15,415,000USD15,540,000USD15,193,000USD16,141,000USD9,884,000USD16,668,000USD
    Reconciled Depreciation—14,954,000USD15,415,000USD15,540,000USD15,193,000USD16,141,000USD16,416,000USD16,668,000USD
    Unclassified Operating Expenses——9,878,000USD11,219,000USD7,679,000USD10,251,000USD——
    SourceDisclosureDeterministicFinalLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Income Yearly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricFY 20252025-12-31 · USDFY 20242024-12-31 · USDFY 20232023-12-31 · USDFY 20202020-12-31 · USDFY 20062006-12-31 · USDFY 20052005-12-31 · USDFY 20042004-12-31 · USDFY 19991999-12-31 · USD
    Total Revenue844,556,000USD833,881,000USD826,339,000USD843,795,000USD279,483,000USD194,610,000USD170,738,000USD1,000USD
    Cost Of Revenue447,699,000USD394,369,000USD446,857,000USD392,978,000USD100,432,000USD77,520,000USD50,567,000USD-4,026,000USD
    Gross Profit396,857,000USD439,512,000USD379,482,000USD450,817,000USD179,051,000USD117,090,000USD120,171,000USD4,027,000USD
    Research Development178,872,000USD179,941,000USD190,660,000USD194,525,000USD55,446,000USD46,385,000USD36,174,000USD10,780,000USD
    Selling General Administrative64,239,000USD68,740,000USD54,962,000USD63,286,000USD157,027,000USD117,499,000USD96,391,000USD—
    Selling And Marketing Expenses133,075,000USD137,830,000USD137,460,000USD139,318,000USD————
    Total Operating Expenses376,186,000USD422,640,000USD383,082,000USD449,148,000USD156,560,000USD117,499,000USD98,811,000USD28,400,000USD
    Operating Income20,671,000USD16,872,000USD-3,600,000USD1,669,000USD22,491,000USD-409,000USD21,360,000USD-24,373,000USD
    Interest Income913,000USD328,000USD341,000USD471,000USD————
    Interest Expense44,924,000USD34,149,000USD27,657,000USD23,236,000USD0USD0USD0USD0USD
    Net Interest Income-44,011,000USD-33,821,000USD-26,242,000USD-21,042,000USD————
    Income Before Tax-45,109,000USD-46,068,000USD-55,373,000USD93,317,000USD37,896,000USD8,979,000USD25,164,000USD—
    Income Tax Expense-84,745,000USD8,167,000USD10,833,000USD4,726,000USD-64,958,000USD611,000USD687,000USD-486,000USD
    Tax Provision-84,745,000USD8,167,000USD-15,406,000USD4,726,000USD————
    Net Income39,636,000USD-54,235,000USD-66,206,000USD88,591,000USD102,854,000USD8,368,000USD24,477,000USD-23,887,000USD
    Net Income From Continuing Ops39,636,000USD-54,235,000USD-52,797,000USD88,591,000USD————
    Ebit-1,098,000USD27,032,000USD-27,716,000USD114,359,000USD22,491,000USD-409,000USD21,360,000USD-24,373,000USD
    Ebitda59,823,000USD91,433,000USD43,280,000USD192,457,000USD31,999,000USD7,567,000USD29,558,000USD-18,486,000USD
    Depreciation And Amortization60,921,000USD64,401,000USD70,996,000USD78,098,000USD9,508,000USD7,976,000USD8,198,000USD5,887,000USD
    Reconciled Depreciation60,921,000USD64,401,000USD72,904,000USD78,098,000USD————
    Total Other Income Expense Net-65,780,000USD-62,940,000USD-51,773,000USD91,648,000USD15,405,000USD9,388,000USD3,804,000USD—
    Unclassified Operating Expenses—36,129,000USD—52,019,000USD-55,913,000USD-46,385,000USD-33,754,000USD17,620,000USD
    Non Operating Income Net Other———112,690,000USD————
    Net Income Applicable To Common Shares———88,591,000USD102,854,000USD8,368,000USD24,477,000USD—
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Balance sheet Quarterly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricQ2 20262026-06-30 · USDQ1 20262026-03-31 · USDQ4 20252025-12-31 · USDQ3 20252025-09-30 · USDQ2 20252025-06-30 · USDQ1 20252025-03-31 · USDQ4 20242024-12-31 · USDQ3 20242024-09-30 · USD
    Total Assets1,142,822,000USD1,159,702,000USD1,212,255,000USD1,105,234,000USD1,142,172,000USD1,137,477,000USD1,162,554,000USD1,114,759,000USD
    Cash And Equivalents43,510,000USD———————
    Total Current Assets405,629,000USD408,499,000USD454,485,000USD418,427,000USD433,940,000USD425,063,000USD463,662,000USD416,579,000USD
    Other Current Assets52,132,000USD53,379,000USD47,389,000USD45,309,000USD43,831,000USD48,704,000USD41,995,000USD52,840,000USD
    Other Non Current Assets26,158,000USD———————
    Total Liabilities750,250,000USD———————
    Total Current Liabilities309,334,000USD298,835,000USD315,473,000USD291,874,000USD313,619,000USD305,180,000USD328,873,000USD293,099,000USD
    Other Non Current Liabilities23,950,000USD———————
    Total Stockholder Equity392,572,000USD419,102,000USD448,994,000USD360,052,000USD370,435,000USD381,815,000USD404,621,000USD395,534,000USD
    Total Equity Including Noncontrolling Interest392,572,000USD———————
    Short Long Term Debt8,750,000USD8,750,000USD8,750,000USD8,750,000USD8,750,000USD7,438,000USD6,125,000USD4,813,000USD
    Long Term Debt320,606,000USD322,975,000USD324,525,000USD326,075,000USD327,625,000USD329,176,000USD330,726,000USD332,428,000USD
    Deferred Revenue118,333,000USD———————
    Deferred Revenue Non Current34,632,000USD———————
    Net Receivables220,203,000USD204,058,000USD231,885,000USD218,312,000USD249,360,000USD225,485,000USD254,718,000USD249,183,000USD
    Inventory87,811,000USD81,463,000USD78,806,000USD80,007,000USD80,299,000USD79,631,000USD79,179,000USD77,316,000USD
    Property Plant Equipment Net103,032,000USD108,087,000USD111,799,000USD114,631,000USD114,042,000USD113,492,000USD94,908,000USD79,514,000USD
    Goodwill300,892,000USD———————
    Intangible Assets124,384,000USD134,233,000USD143,344,000USD153,752,000USD164,742,000USD175,994,000USD187,537,000USD199,322,000USD
    Accounts Payable87,077,000USD77,293,000USD79,840,000USD76,743,000USD88,697,000USD80,843,000USD87,759,000USD78,939,000USD
    Short Term Debt11,655,000USD20,351,000USD20,449,000USD20,365,000USD19,566,000USD17,779,000USD15,568,000USD15,457,000USD
    Common Stock18,000USD18,000USD18,000USD18,000USD18,000USD18,000USD18,000USD17,000USD
    Retained Earnings-1,595,909,000USD-1,569,038,000USD-1,534,549,000USD-1,623,614,000USD-1,611,505,000USD-1,600,412,000USD-1,574,185,000USD-1,580,549,000USD
    Accumulated Other Comprehensive Income6,523,000USD6,134,000USD6,567,000USD7,723,000USD7,932,000USD7,990,000USD8,080,000USD8,114,000USD
    Total Liab—740,600,000USD763,261,000USD745,182,000USD771,737,000USD755,662,000USD757,933,000USD719,225,000USD
    Other Current Liab—78,572,000USD90,759,000USD81,472,000USD80,078,000USD81,658,000USD99,887,000USD89,404,000USD
    Capital Stock—18,000USD18,000USD18,000USD18,000USD18,000USD18,000USD17,000USD
    Good Will—300,892,000USD300,892,000USD300,892,000USD300,892,000USD300,892,000USD300,892,000USD300,892,000USD
    Cash—69,599,000USD96,405,000USD74,799,000USD60,450,000USD71,243,000USD87,770,000USD37,240,000USD
    Cash And Short Term Investments—69,599,000USD96,405,000USD74,799,000USD60,450,000USD71,243,000USD87,770,000USD37,240,000USD
    Current Deferred Revenue—122,619,000USD124,425,000USD106,697,000USD115,212,000USD116,623,000USD119,295,000USD95,761,000USD
    Net Debt—330,769,000USD308,728,000USD333,447,000USD348,804,000USD336,856,000USD295,900,000USD343,894,000USD
    Short Long Term Debt Total—400,368,000USD405,133,000USD408,246,000USD409,254,000USD408,099,000USD383,670,000USD381,134,000USD
    Property Plant Equipment Gross—108,087,000USD245,625,000USD114,631,000USD114,042,000USD113,492,000USD213,970,000USD79,514,000USD
    Common Stock Shares Outstanding—175,661,000shares178,724,000shares176,366,000shares176,237,000shares175,719,000shares178,703,000shares174,613,000shares
    Non Current Assets Total—751,203,000USD757,770,000USD686,807,000USD708,232,000USD712,414,000USD698,892,000USD698,180,000USD
    Non Current Liabilities Total—441,765,000USD447,788,000USD453,308,000USD458,118,000USD450,482,000USD429,060,000USD426,126,000USD
    Non Current Liabilities Other—23,597,000USD23,803,000USD24,635,000USD24,467,000USD24,527,000USD25,962,000USD32,495,000USD
    Non Currrent Assets Other—26,157,000USD27,417,000USD26,415,000USD29,242,000USD28,364,000USD26,573,000USD33,980,000USD
    Net Working Capital—109,664,000USD139,012,000USD126,553,000USD120,321,000USD119,883,000USD134,789,000USD123,480,000USD
    Unclassified Non Current Assets—181,834,000USD174,318,000USD91,117,000USD99,314,000USD93,672,000USD88,982,000USD84,472,000USD
    Unclassified Current Liabilities—-8,750,000USD-8,750,000USD————8,725,000USD
    Unclassified Non Current Liabilities—95,193,000USD99,460,000USD102,598,000USD106,026,000USD96,779,000USD72,372,000USD61,203,000USD
    Unclassified Equity—1,981,970,000USD1,976,940,000USD1,975,907,000USD1,973,972,000USD1,974,201,000USD1,970,690,000USD1,967,935,000USD
    SourceDisclosureDeterministicFinalLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Balance sheet Yearly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricFY 20252025-12-31 · USDFY 20242024-12-31 · USDFY 20232023-12-31 · USDFY 20222022-12-31 · USDFY 20212021-12-31 · USDFY 20202020-12-31 · USDFY 20192019-12-31 · USDFY 20182018-12-31 · USD
    Total Assets1,212,255,000USD1,162,554,000USD1,144,153,000USD1,255,564,000USD1,347,737,000USD1,547,265,000USD814,908,000USD957,159,000USD
    Intangible Assets143,344,000USD187,537,000USD238,087,000USD294,728,000USD350,730,000USD417,356,000USD213,366,000USD251,391,000USD
    Other Current Assets47,389,000USD41,995,000USD46,146,000USD68,218,000USD40,115,000USD35,730,000USD27,146,000USD17,002,000USD
    Total Liab763,261,000USD757,933,000USD691,390,000USD737,137,000USD820,571,000USD860,412,000USD331,653,000USD366,861,000USD
    Total Stockholder Equity448,994,000USD404,621,000USD452,763,000USD518,427,000USD527,166,000USD686,853,000USD483,255,000USD590,298,000USD
    Other Current Liab90,759,000USD99,887,000USD83,304,000USD77,118,000USD100,752,000USD134,865,000USD56,700,000USD84,263,000USD
    Common Stock18,000USD18,000USD17,000USD17,000USD15,000USD15,000USD11,000USD11,000USD
    Capital Stock18,000USD18,000USD17,000USD17,000USD15,000USD15,000USD11,000USD11,000USD
    Retained Earnings-1,534,549,000USD-1,574,185,000USD-1,519,950,000USD-1,453,744,000USD-1,355,661,000USD-1,178,476,000USD-1,267,067,000USD-1,136,992,000USD
    Good Will300,892,000USD300,892,000USD300,892,000USD300,892,000USD300,892,000USD416,892,000USD224,896,000USD383,655,000USD
    Cash96,405,000USD87,770,000USD26,630,000USD67,101,000USD103,915,000USD128,428,000USD44,643,000USD43,694,000USD
    Cash And Short Term Investments96,405,000USD87,770,000USD26,630,000USD67,101,000USD103,915,000USD128,428,000USD44,643,000USD50,978,000USD
    Total Current Assets454,485,000USD463,662,000USD418,718,000USD477,986,000USD480,990,000USD447,646,000USD279,295,000USD278,435,000USD
    Total Current Liabilities315,473,000USD328,873,000USD341,073,000USD330,493,000USD344,453,000USD327,630,000USD206,737,000USD289,654,000USD
    Current Deferred Revenue124,425,000USD119,295,000USD113,381,000USD113,939,000USD109,119,000USD96,824,000USD100,406,000USD105,087,000USD
    Net Debt308,728,000USD295,900,000USD260,404,000USD320,826,000USD338,959,000USD345,775,000USD56,773,000USD35,406,000USD
    Short Term Debt20,449,000USD15,568,000USD50,841,000USD35,474,000USD37,461,000USD32,554,000USD18,219,000USD55,000,000USD
    Short Long Term Debt8,750,000USD6,125,000USD35,102,000USD20,058,000USD20,058,000USD15,531,000USD10,500,000USD55,000,000USD
    Short Long Term Debt Total405,133,000USD383,670,000USD287,034,000USD387,927,000USD442,874,000USD474,203,000USD101,416,000USD79,100,000USD
    Long Term Debt324,525,000USD330,726,000USD197,482,000USD306,270,000USD350,217,000USD369,035,000USD45,995,000USD24,100,000USD
    Net Receivables231,885,000USD254,718,000USD268,421,000USD267,244,000USD282,917,000USD237,738,000USD192,706,000USD187,853,000USD
    Inventory78,806,000USD79,179,000USD77,521,000USD75,423,000USD54,043,000USD45,750,000USD14,800,000USD22,602,000USD
    Accounts Payable79,840,000USD87,759,000USD85,164,000USD95,810,000USD97,121,000USD63,387,000USD31,412,000USD45,304,000USD
    Property Plant Equipment Net111,799,000USD94,908,000USD81,603,000USD89,720,000USD100,832,000USD118,645,000USD65,630,000USD27,042,000USD
    Property Plant Equipment Gross245,625,000USD213,970,000USD191,474,000USD89,720,000USD100,832,000USD118,645,000USD65,630,000USD27,042,000USD
    Accumulated Other Comprehensive Income6,567,000USD8,080,000USD13,787,000USD30,585,000USD7,578,000USD-4,942,000USD2,527,000USD3,703,000USD
    Common Stock Shares Outstanding179,822,000shares174,044,000shares170,408,000shares156,668,000shares147,575,000shares144,650,000shares109,734,000shares103,916,000shares
    Non Current Assets Total757,770,000USD698,892,000USD725,435,000USD777,578,000USD866,747,000USD1,099,619,000USD535,613,000USD678,724,000USD
    Non Current Liabilities Total447,788,000USD429,060,000USD350,317,000USD406,644,000USD476,118,000USD532,782,000USD124,916,000USD77,207,000USD
    Non Current Liabilities Other23,803,000USD25,962,000USD30,658,000USD31,187,000USD41,970,000USD146,905,000USD16,589,000USD30,797,000USD
    Non Currrent Assets Other27,417,000USD26,573,000USD-202,995,000USD26,373,000USD23,075,000USD20,892,000USD26,762,000USD7,484,000USD
    Net Working Capital139,012,000USD134,789,000USD77,645,000USD147,493,000USD136,537,000USD120,016,000USD72,558,000USD-11,219,000USD
    Unclassified Non Current Assets174,318,000USD88,982,000USD104,853,000USD-26,373,000USD-23,075,000USD-20,892,000USD-26,762,000USD-7,484,000USD
    Unclassified Current Liabilities-8,750,000USD—-26,719,000USD-11,906,000USD-20,058,000USD-15,531,000USD-10,500,000USD-55,000,000USD
    Unclassified Non Current Liabilities99,460,000USD72,372,000USD122,177,000USD14,996,000USD5,110,000USD-91,133,000USD18,109,000USD-34,211,000USD
    Unclassified Equity1,976,940,000USD1,970,690,000USD1,958,892,000USD1,941,552,000USD1,875,219,000USD1,870,241,000USD1,747,773,000USD1,723,565,000USD
    Other Liab———54,191,000USD70,705,000USD91,133,000USD39,575,000USD51,783,000USD
    Other Assets———92,238,000USD70,362,000USD31,543,000USD31,721,000USD16,636,000USD
    Long Term Investments———0USD43,931,000USD115,183,000USD—0USD
    Short Term Investments———13,212,000USD—115,183,000USD0USD7,284,000USD
    Net Tangible Assets———-77,193,000USD-124,456,000USD-147,395,000USD44,993,000USD-44,748,000USD
    Unclassified Current Assets———-13,212,000USD—-115,183,000USD——
    Deferred Long Term Liab————8,116,000USD16,842,000USD4,648,000USD4,738,000USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Cash flow Quarterly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricQ1 20262026-03-31 · USDQ4 20252025-12-31 · USDQ3 20252025-09-30 · USDQ2 20252025-06-30 · USDQ1 20252025-03-31 · USDQ4 20242024-12-31 · USDQ3 20242024-09-30 · USDQ2 20242024-06-30 · USD
    Net Income-34,489,000USD89,065,000USD-12,109,000USD-11,093,000USD-26,227,000USD6,364,000USD-13,422,000USD-16,816,000USD
    Depreciation14,678,000USD14,954,000USD15,415,000USD15,540,000USD15,012,000USD15,193,000USD16,141,000USD16,416,000USD
    Stock Based Compensation5,957,000USD4,787,000USD5,844,000USD4,477,000USD4,298,000USD4,025,000USD4,045,000USD3,494,000USD
    Other Non Cash Items637,000USD-529,000USD642,000USD2,708,999USD-2,362,000USD7,571,000USD-557,000USD-1,308,000USD
    Change To Account Receivables27,233,000USD-14,230,000USD29,680,000USD-24,881,000USD29,459,000USD-6,476,000USD-37,250,000USD762,000USD
    Change To Inventory-4,600,000USD616,000USD2,438,000USD-1,274,000USD-1,546,000USD-1,986,000USD2,775,000USD-26,000USD
    Change In Working Capital-1,151,000USD6,617,000USD7,661,000USD-8,071,999USD10,372,000USD30,887,000USD-14,546,000USD-6,080,000USD
    Total Cash From Operating Activities-21,996,000USD29,239,000USD26,489,000USD-795,000USD-3,535,000USD61,767,000USD-14,849,000USD-9,778,000USD
    Capital Expenditures-3,072,000USD-1,974,000USD-5,537,000USD-5,682,000USD-12,149,000USD-7,978,000USD-9,014,000USD-3,213,000USD
    Free Cash Flow-25,068,000USD27,265,000USD20,952,000USD-6,477,000USD-15,684,000USD53,789,000USD-23,863,000USD-12,991,000USD
    Total Cashflows From Investing Activities-3,072,000USD-1,974,000USD-5,537,000USD-5,682,000USD-12,149,000USD-7,978,000USD-9,014,000USD-3,213,000USD
    Net Borrowings-2,187,000USD-2,187,000USD-2,188,000USD-875,000USD-875,000USD-875,000USD-875,000USD—
    Total Cash From Financing Activities-3,114,000USD-5,941,000USD-6,097,000USD-5,581,000USD-1,812,000USD-2,471,000USD-3,279,000USD49,299,000USD
    Sale Purchase Of Stock-824,000USD-3,224,000USD-3,478,000USD-2,253,000USD0USD0USD-397,000USD-1,792,000USD
    Change In Cash-28,532,000USD21,364,000USD14,493,000USD-11,540,000USD-16,665,000USD50,386,000USD-27,315,000USD36,477,000USD
    Begin Period Cash Flow98,131,000USD76,767,000USD62,274,000USD73,814,000USD90,479,000USD40,093,000USD67,408,000USD30,931,000USD
    End Period Cash Flow69,599,000USD98,131,000USD76,767,000USD62,274,000USD73,814,000USD90,479,000USD40,093,000USD67,408,000USD
    Other Cashflows From Financing Activities-103,000USD-530,000USD-431,000USD-2,458,000USD-938,000USD-1,596,000USD-2,404,000USD-62,620,000USD
    Unclassified Operating Cash Flow-7,628,000USD-85,655,000USD9,036,000USD-4,356,000USD-4,628,000USD-2,273,000USD-6,510,000USD-5,484,000USD
    Investments——-5,537,000USD-5,682,000USD-12,149,000USD-7,978,000USD-9,014,000USD-3,213,000USD
    Unclassified Investing Cash Flow——5,537,000USD5,682,000USD12,149,000USD7,978,000USD9,213,000USD3,326,000USD
    Issuance Of Capital Stock—————0USD0USD0USD
    Dividends Paid——————-60,948,000USD-56,850,000USD
    Other Cashflows From Investing Activities——————-199,000USD-113,000USD
    Unclassified Financing Cash Flow——————61,345,000USD170,561,000USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Cash flow Yearly

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricFY 20252025-12-31 · USDFY 20242024-12-31 · USDFY 20232023-12-31 · USDFY 20222022-12-31 · USDFY 20212021-12-31 · USDFY 20202020-12-31 · USDFY 20192019-12-31 · USDFY 20182018-12-31 · USD
    Net Income39,636,000USD-54,235,000USD-66,206,000USD-98,083,000USD-177,185,000USD88,591,000USD-130,075,000USD-76,810,000USD
    Depreciation60,921,000USD64,401,000USD70,996,000USD76,483,000USD83,588,000USD78,098,000USD61,174,000USD60,923,000USD
    Stock Based Compensation19,406,000USD16,086,000USD21,806,000USD18,707,000USD19,418,000USD13,899,000USD12,601,000USD11,072,000USD
    Other Non Cash Items460,000USD9,309,000USD-4,397,000USD45,113,000USD194,245,000USD-105,284,000USD157,266,000USD4,611,000USD
    Change To Account Receivables20,028,000USD12,420,000USD5,726,000USD14,285,000USD-47,279,000USD9,578,000USD-3,936,000USD-13,017,000USD
    Change To Inventory234,000USD-3,616,000USD-10,701,000USD-32,099,000USD-9,029,000USD11,842,000USD7,776,000USD993,000USD
    Change In Working Capital16,578,000USD31,566,000USD4,084,000USD-50,333,000USD-55,288,000USD30,876,000USD-50,580,000USD-9,904,000USD
    Total Cash From Operating Activities51,398,000USD50,240,000USD17,087,000USD-26,364,000USD19,182,000USD101,564,000USD55,685,000USD-9,595,000USD
    Capital Expenditures-25,342,000USD-22,868,000USD-9,481,000USD-13,554,000USD-17,132,000USD-26,721,000USD-10,824,000USD-7,907,000USD
    Free Cash Flow26,056,000USD27,372,000USD7,606,000USD-39,918,000USD2,050,000USD74,843,000USD44,861,000USD-17,502,000USD
    Total Cashflows From Investing Activities-25,342,000USD-22,868,000USD-9,481,000USD-12,136,000USD-14,188,000USD-330,073,000USD-3,529,000USD-35,377,000USD
    Net Borrowings-6,125,000USD105,155,000USD-95,058,000USD-45,653,000USD-18,454,000USD322,165,000USD-23,857,000USD33,724,000USD
    Total Cash From Financing Activities-19,431,000USD37,706,000USD-47,859,000USD931,000USD-33,683,000USD319,303,000USD-51,277,000USD31,773,000USD
    Sale Purchase Of Stock-8,955,000USD-56,850,000USD-4,481,000USD-2,784,000USD-14,464,000USD-1,674,000USD-4,536,000USD30,000,000USD
    Issuance Of Capital Stock0USD0USD53,350,000USD0USD0USD———
    Change In Cash7,652,000USD63,849,000USD-40,632,000USD-39,223,000USD-29,212,000USD91,054,000USD949,000USD-13,379,000USD
    Begin Period Cash Flow90,479,000USD26,630,000USD67,262,000USD106,485,000USD135,697,000USD44,643,000USD43,694,000USD57,073,000USD
    End Period Cash Flow98,131,000USD90,479,000USD26,630,000USD67,262,000USD106,485,000USD135,697,000USD44,643,000USD43,694,000USD
    Other Cashflows From Financing Activities-4,351,000USD-67,449,000USD47,199,000USD46,584,000USD-15,229,000USD-15,751,000USD144,138,000USD-2,575,000USD
    Unclassified Operating Cash Flow-85,603,000USD-16,887,000USD-9,196,000USD-18,251,000USD-45,596,000USD-4,616,000USD5,299,000USD—
    Investments—-22,868,000USD-5,712,000USD-12,136,000USD-14,188,000USD-330,073,000USD7,295,000USD18,919,000USD
    Dividends Paid—-2,743,000USD-3,935,000USD-2,784,000USD-14,440,000USD-1,604,000USD-863,000USD—
    Other Cashflows From Investing Activities—-462,000USD-100,000USD-3,300,000USD2,944,000USD43,500,000USD7,295,000USD18,919,000USD
    Unclassified Investing Cash Flow—23,330,000USD5,812,000USD16,854,000USD14,188,000USD-16,779,000USD-7,295,000USD-65,308,000USD
    Unclassified Financing Cash Flow—59,593,000USD8,416,000USD5,568,000USD28,904,000USD16,167,000USD-166,159,000USD-29,376,000USD
    Change To Liabilities———3,007,000USD41,386,000USD-28,932,000USD-34,820,000USD-19,479,000USD
    Cash And Cash Equivalents Changes————-28,689,000USD90,794,000USD879,000USD-13,379,000USD
    Exchange Rate Changes———————-180,000USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Operating metrics

    No operating metrics are currently published for this company.

    Revenue breakdown

    PeriodDimensionBusiness / regionRevenueCurrencySource
    Q2 2026Quarterly · 2026-06-30GeographyAsia Pacific42,638,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30GeographyEMEA49,092,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30GeographyOther Geographical Location11,243,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30GeographyUnited States89,367,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30ProductProduct95,560,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30ProductService Revenue Maintenance66,022,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30ProductService Revenue Professional Services30,758,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30SegmentCloud And Edge110,505,000USDDisclosure
    Q2 2026Quarterly · 2026-06-30SegmentIPOptical Networks81,835,000USDDisclosure
    Q1 2026Quarterly · 2026-03-31GeographyAsia Pacific40,927,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31GeographyEMEA39,070,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31GeographyOther Geographical Location10,031,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31GeographyUnited States72,578,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31ProductProduct68,114,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31ProductService Revenue Maintenance63,667,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31ProductService Revenue Professional Services30,825,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31SegmentCloud And Edge99,512,000USD0001708055-26-000028
    Q1 2026Quarterly · 2026-03-31SegmentIPOptical Networks63,094,000USD0001708055-26-000028
    Q4 2025Quarterly · 2025-12-31GeographyAsia Pacific52,803,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31GeographyEMEA53,647,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31GeographyOther Geographical Location13,506,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31GeographyUnited States107,367,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31ProductProduct127,560,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31ProductService Revenue Maintenance66,317,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31ProductService Revenue Professional Services33,446,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31SegmentCloud And Edge142,353,000USDLegacy provider
    Q4 2025Quarterly · 2025-12-31SegmentIPOptical Networks84,970,000USDLegacy provider
    FY 2025Yearly · 2025-12-31GeographyAsia Pacific180,985,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31GeographyEMEA214,151,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31GeographyOther Geographical Location46,463,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31GeographyUnited States402,957,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31ProductProduct434,587,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31ProductService Revenue Maintenance270,551,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31ProductService Revenue Professional Services139,418,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31SegmentCloud And Edge511,430,000USD0001708055-26-000012
    FY 2025Yearly · 2025-12-31SegmentIPOptical Networks333,126,000USD0001708055-26-000012
    Q3 2025Quarterly · 2025-09-30GeographyAsia Pacific43,251,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30GeographyEMEA62,892,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30GeographyOther Geographical Location12,555,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30GeographyUnited States96,673,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30ProductProduct109,979,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30ProductService Revenue Maintenance69,515,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30ProductService Revenue Professional Services35,877,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30SegmentCloud And Edge124,438,000USD0001708055-25-000035
    Q3 2025Quarterly · 2025-09-30SegmentIPOptical Networks90,933,000USD0001708055-25-000035
    Q2 2025Quarterly · 2025-06-30GeographyAsia Pacific41,752,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30GeographyEMEA52,113,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30GeographyOther Geographical Location10,496,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30GeographyUnited States116,222,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30ProductProduct115,057,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30ProductService Revenue Maintenance68,297,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30ProductService Revenue Professional Services37,229,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30SegmentCloud And Edge137,048,000USD0001708055-25-000007
    Q2 2025Quarterly · 2025-06-30SegmentIPOptical Networks83,535,000USD0001708055-25-000007
    Q1 2025Quarterly · 2025-03-31GeographyAsia Pacific43,179,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31GeographyEMEA45,499,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31GeographyOther Geographical Location9,906,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31GeographyUnited States82,695,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31ProductProduct81,991,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31ProductService Revenue Maintenance66,422,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31ProductService Revenue Professional Services32,866,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31SegmentCloud And Edge107,591,000USD0001708055-26-000028
    Q1 2025Quarterly · 2025-03-31SegmentIPOptical Networks73,688,000USD0001708055-26-000028
    Q4 2024Quarterly · 2024-12-31GeographyAsia Pacific45,092,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31GeographyEMEA58,911,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31GeographyOther Geographical Location13,513,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31GeographyUnited States133,843,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31ProductProduct148,335,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31ProductService Revenue Maintenance69,662,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31ProductService Revenue Professional Services33,362,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31SegmentCloud And Edge164,855,000USDLegacy provider
    Q4 2024Quarterly · 2024-12-31SegmentIPOptical Networks86,504,000USDLegacy provider
    FY 2024Yearly · 2024-12-31GeographyAsia Pacific151,570,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31GeographyEMEA234,679,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31GeographyOther Geographical Location51,648,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31GeographyUnited States395,984,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31ProductProduct447,229,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31ProductService Revenue Maintenance274,582,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31ProductService Revenue Professional Services112,070,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31SegmentCloud And Edge505,157,000USD0001708055-26-000012
    FY 2024Yearly · 2024-12-31SegmentIPOptical Networks328,724,000USD0001708055-26-000012
    Q3 2024Quarterly · 2024-09-30GeographyAsia Pacific38,240,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30GeographyEMEA49,767,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30GeographyOther Geographical Location12,673,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30GeographyUnited States109,558,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30ProductProduct112,151,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30ProductService Revenue Maintenance69,019,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30ProductService Revenue Professional Services29,068,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30SegmentCloud And Edge128,078,000USD0001708055-25-000035
    Q3 2024Quarterly · 2024-09-30SegmentIPOptical Networks82,160,000USD0001708055-25-000035
    FY 2023Yearly · 2023-12-31GeographyAsia Pacific167,083,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31GeographyEMEA261,901,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31GeographyOther Geographical Location52,940,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31GeographyUnited States344,415,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31ProductProduct445,150,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31ProductService Revenue Maintenance279,652,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31ProductService Revenue Professional Services101,537,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31SegmentCloud And Edge477,647,000USD0001708055-26-000012
    FY 2023Yearly · 2023-12-31SegmentIPOptical Networks348,692,000USD0001708055-26-000012
    FY 2022Yearly · 2022-12-31GeographyAsia Pacific151,099,000USD0001558370-25-001773

    Periods follow company fiscal calendars. Quarterly, annual and year-to-date amounts are shown separately. Missing values are not zero. Data may be delayed, incomplete or corrected; follow the disclosure links to verify figures.