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    GT Biopharma, Inc.

    Company overview

    Market capitalization
    —
    Employees
    1
    Latest publication
    2026-09-29
    About GT Biopharma, Inc.

    GT Biopharma, Inc., a clinical stage biopharmaceutical company, engages in the development and commercialization of immuno-oncology products based on its Tri-specific Killer Engager (TriKE) and Tetra-specific Killer Engager (Dual Targeting TriKE) platforms. It develops GTB-3650, which is in phase 1 trials that target CD33 on the surface of myeloid leukemias and an agonistic camelid; GTB-5550, that is in phase 1 dose escalation basket trial that targets B7-H3 on the surface of advanced solid tumors;and GTB-7550, a pre-clinical stage product candidate in development for the treatment of lupus and other autoimmune disorders. The company was formerly known as OXIS International, Inc. and changed its name to GT Biopharma, Inc. in July 2017. GT Biopharma, Inc. was incorporated in 1965 and is based in San Francisco, California.

    Company website

    Financial statements

    Income 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
    Total Revenue0USD0USD0USD0USD0USD0USD0USD0USD
    Research Development413,000USD1,376,000USD634,000USD363,000USD1,099,000USD1,930,000USD1,307,000USD1,784,000USD
    Selling General Administrative2,435,000USD4,219,000USD2,748,000USD1,150,000USD833,000USD2,122,000USD2,297,000USD2,122,000USD
    Total Operating Expenses2,848,000USD5,595,000USD3,382,000USD1,513,000USD1,932,000USD3,763,000USD3,604,000USD3,906,000USD
    Operating Income-2,848,000USD-5,595,000USD-3,382,000USD-1,513,000USD-1,932,000USD-3,763,000USD-3,604,000USD-3,906,000USD
    Interest Income67,000USD17,000USD36,000USD38,000USD32,000USD59,000USD96,000USD105,000USD
    Interest Expense63,000USD127,000USD——0USD0USD0USD0USD
    Net Interest Income4,000USD-110,000USD36,000USD38,000USD32,000USD59,000USD96,000USD105,000USD
    Income Before Tax-2,833,000USD-23,031,000USD8,299,000USD-30,169,000USD-776,000USD-3,775,000USD-3,411,000USD-3,710,000USD
    Net Income-2,833,000USD-23,031,000USD8,299,000USD-30,169,000USD-776,000USD-3,775,000USD-3,411,000USD-3,710,000USD
    Net Income From Continuing Ops-2,833,000USD-23,031,000USD-3,114,000USD-1,433,000USD-776,000USD-3,775,000USD-3,411,000USD-3,710,000USD
    Ebitda-2,848,000USD-5,595,000USD-3,382,000USD-1,513,000USD-1,932,000USD-3,775,000USD-3,411,000USD-3,710,000USD
    Total Other Income Expense Net15,000USD-17,436,000USD11,681,000USD-28,656,000USD1,156,000USD-12,000USD193,000USD196,000USD
    Income Tax Expense————3,091,000USD3,091,000USD—-3,906,000USD
    Ebit————-3,864,000USD-3,763,000USD-3,604,000USD-7,616,000USD
    Depreciation And Amortization————1,932,000USD-12,000USD193,000USD3,906,000USD
    SourceLegacy providerLegacyLegacy 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 20222022-12-31 · USDFY 20212021-12-31 · USDFY 20202020-12-31 · USDFY 20192019-12-31 · USDFY 20182018-12-31 · USD
    Total Revenue0USD0USD0USD0USD0USD0USD0USD0USD
    Research Development3,472,000USD5,798,000USD6,466,000USD8,811,000USD9,591,000USD485,000USD1,667,000USD9,067,000USD
    Selling General Administrative8,950,000USD8,566,000USD8,235,000USD12,446,000USD47,924,000USD6,279,000USD9,790,000USD12,487,000USD
    Total Operating Expenses12,422,000USD14,364,000USD13,576,000USD21,257,000USD57,515,000USD6,764,000USD11,453,000USD21,554,000USD
    Operating Income-12,422,000USD-14,364,000USD-13,576,000USD-21,257,000USD-57,515,000USD-6,764,000USD-11,457,000USD-250,069,000USD
    Interest Income123,000USD402,000USD741,000USD292,000USD38,000USD0USD——
    Interest Expense127,000USD0USD213,000USD8,000USD718,000USD3,320,000USD2,128,000USD9,117,000USD
    Net Interest Income-4,000USD402,000USD520,000USD284,000USD-680,000USD-3,320,000USD-2,128,000USD-9,117,000USD
    Income Before Tax-28,354,000USD-13,162,000USD-7,597,000USD-20,884,000USD-58,013,000USD-28,296,000USD-38,647,000USD-259,186,000USD
    Net Income-28,354,000USD-13,162,000USD-7,597,000USD-20,884,000USD-58,013,000USD-28,296,000USD-38,647,000USD-259,186,000USD
    Net Income From Continuing Ops-28,354,000USD-13,162,000USD-10,219,000USD-20,884,000USD-58,013,000USD-28,296,000USD-38,647,000USD-259,186,000USD
    Ebitda-12,422,000USD-13,162,000USD5,979,000USD-20,965,000USD-57,477,000USD-24,972,000USD-36,515,000USD-250,062,000USD
    Total Other Income Expense Net-15,932,000USD1,202,000USD5,979,000USD373,000USD-498,000USD-21,532,000USD-27,190,000USD-9,117,000USD
    Ebit—-27,526,000USD-7,597,000USD-42,222,000USD-114,992,000USD-24,976,000USD-36,519,000USD-250,069,000USD
    Depreciation And Amortization—14,364,000USD13,576,000USD21,257,000USD57,515,000USD4,000USD4,000USD7,000USD
    Unclassified Operating Expenses——-1,125,000USD—————
    Income Tax Expense——-13,576USD-381,000USD680,000USD3,320,000USD2,128,000USD-228,515,000USD
    Net Income Applicable To Common Shares————-58,013,000USD-28,296,000USD-38,647,000USD-259,186,000USD
    Reconciled Depreciation—————0USD4,000USD7,000USD
    Non Operating Income Net Other—————18,529,000USD——
    Minority Interest—————-169,000USD-169,000USD-169,000USD
    Cost Of Revenue——————4,000USD7,000USD
    Gross Profit——————-4,000USD-7,000USD
    Tax Provision——————0USD0USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Balance sheet 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
    Total Assets9,996,000USD8,106,000USD4,321,000USD7,124,000USD2,658,000USD4,232,000USD6,759,000USD9,267,000USD
    Other Current Assets409,000USD1,295,000USD940,000USD1,896,000USD293,000USD281,000USD341,000USD18,000USD
    Total Liab2,416,000USD2,319,000USD1,321,000USD2,307,000USD3,638,000USD5,902,000USD4,662,000USD3,759,000USD
    Total Stockholder Equity7,580,000USD5,787,000USD3,000,000USD4,817,000USD-980,000USD-1,670,000USD2,097,000USD5,508,000USD
    Other Current Liab2,163,000USD1,571,000USD552,000USD933,000USD1,258,000USD2,049,000USD2,050,000USD2,042,000USD
    Common Stock35,000USD26,000USD6,000USD3,000USD3,000USD2,000USD2,000USD2,000USD
    Capital Stock36,000USD27,000USD7,000USD1,960,000USD4,000USD3,000USD3,000USD3,000USD
    Retained Earnings-726,837,000USD-723,901,000USD-700,779,000USD-697,521,000USD-696,003,000USD-695,227,000USD-691,452,000USD-688,041,000USD
    Other Assets1,073,000USD—1,793,000USD—293,000USD———
    Cash8,923,000USD6,811,000USD2,621,000USD5,228,000USD2,365,000USD3,951,000USD6,418,000USD9,249,000USD
    Cash And Short Term Investments8,923,000USD6,811,000USD2,621,000USD5,228,000USD2,365,000USD3,951,000USD6,418,000USD9,249,000USD
    Total Current Assets8,923,000USD8,106,000USD3,561,000USD7,124,000USD2,658,000USD4,232,000USD6,759,000USD9,267,000USD
    Total Current Liabilities2,416,000USD2,319,000USD1,321,000USD2,307,000USD3,638,000USD5,902,000USD4,662,000USD3,759,000USD
    Net Debt-8,923,000USD-6,811,000USD-2,621,000USD-5,228,000USD-2,365,000USD-3,951,000USD-6,418,000USD-9,249,000USD
    Accounts Payable253,000USD748,000USD769,000USD1,374,000USD2,380,000USD3,853,000USD2,612,000USD1,717,000USD
    Common Stock Shares Outstanding30,283,031shares5,513,255shares3,940,714shares2,771,765shares2,345,000shares1,897,000shares2,234,000shares1,712,000shares
    Non Current Assets Total0USD0USD759,999USD0USD0USD0USD0USD0USD
    Non Current Liabilities Total0USD0USD0USD1,956,000USD0USD0USD0USD0USD
    Net Working Capital7,580,000USD5,787,000USD3,000,000USD4,817,000USD-980,000USD-1,670,000USD2,097,000USD5,508,000USD
    Unclassified Non Current Assets-1,073,000USD—-1,793,000USD—————
    Unclassified Equity734,346,000USD729,635,000USD703,766,000USD700,375,000USD695,016,000USD693,552,000USD693,544,000USD693,545,000USD
    Non Currrent Assets Other——759,999USD—————
    Accumulated Other Comprehensive Income———0USD———-1,000USD
    Unclassified Non Current Liabilities———1,956,000USD————
    Short Term Investments—————0USD4,987,000USD6,570,000USD
    Property Plant Equipment Net—————0USD0USD0USD
    Property Plant Equipment Gross—————0USD0USD0USD
    Unclassified Current Assets——————-4,987,000USD-6,570,000USD
    SourceLegacy providerLegacyLegacy 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 Assets8,106,000USD4,232,000USD14,109,000USD16,736,000USD32,169,000USD5,661,000USD396,000USD25,399,000USD
    Other Current Assets1,295,000USD281,000USD84,000USD54,000USD190,000USD364,000USD246,000USD30,000USD
    Total Liab2,319,000USD5,902,000USD6,633,000USD5,002,000USD10,259,000USD35,094,000USD19,706,000USD14,029,000USD
    Total Stockholder Equity5,787,000USD-1,670,000USD7,476,000USD11,734,000USD21,910,000USD-29,264,000USD-19,141,000USD11,539,000USD
    Other Current Liab1,571,000USD2,049,000USD2,247,000USD1,688,000USD138,000USD383,000USD4,408,000USD1,463,000USD
    Common Stock26,000USD2,000USD1,000USD33,000USD1,145,000USD52,000USD70,000USD51,000USD
    Capital Stock27,000USD3,000USD2,000USD34,000USD1,146,000USD55,000USD73,000USD53,000USD
    Retained Earnings-723,901,000USD-695,227,000USD-682,065,000USD-674,468,000USD-653,584,000USD-595,628,000USD-567,332,000USD-528,685,000USD
    Cash6,811,000USD3,951,000USD1,079,000USD5,672,000USD8,968,000USD5,297,000USD28,000USD60,000USD
    Cash And Short Term Investments6,811,000USD3,951,000USD13,972,000USD16,508,000USD31,979,000USD5,297,000USD28,000USD60,000USD
    Total Current Assets8,106,000USD4,232,000USD14,056,000USD16,562,000USD32,169,000USD5,661,000USD274,000USD90,000USD
    Total Current Liabilities2,319,000USD5,902,000USD6,633,000USD4,938,000USD10,259,000USD35,094,000USD19,706,000USD14,029,000USD
    Net Debt-6,811,000USD-3,951,000USD-1,021,000USD-5,498,000USD-8,937,000USD21,037,000USD13,330,000USD10,744,000USD
    Accounts Payable748,000USD3,853,000USD4,328,000USD3,140,000USD8,189,000USD2,243,000USD1,940,000USD1,762,000USD
    Common Stock Shares Outstanding5,513,255shares1,897,000shares1,348,000shares31,868,000shares28,155,624shares4,385,000shares3,385,000shares2,955,000shares
    Non Current Assets Total0USD0USD53,000USD174,000USD0USD0USD122,000USD25,309,000USD
    Non Current Liabilities Total0USD0USD0USD64,000USD8,220,000USD28,577,000USD15,298,000USD0USD
    Net Working Capital5,787,000USD-1,670,000USD7,423,000USD11,624,000USD21,910,000USD-29,433,000USD-19,432,000USD-13,939,000USD
    Unclassified Equity729,635,000USD693,552,000USD689,539,000USD686,135,000USD672,090,000USD566,257,000USD548,048,000USD540,120,000USD
    Short Term Investments—0USD12,893,000USD10,836,000USD23,011,000USD0USD——
    Property Plant Equipment Net—0USD53,000USD165,000USD0USD0USD110,000USD35,000USD
    Property Plant Equipment Gross—0USD53,000USD165,000USD0USD0USD110,000USD35,000USD
    Short Term Debt——58,000USD110,000USD31,000USD26,334,000USD13,358,000USD10,804,000USD
    Short Long Term Debt Total——58,000USD174,000USD31,000USD26,334,000USD13,358,000USD10,804,000USD
    Accumulated Other Comprehensive Income——-1,000USD—1,113,000USD——0USD
    Non Currrent Assets Other———9,000USD——12,000USD12,000USD
    Current Deferred Revenue————1,901,000USD6,134,000USD——
    Short Long Term Debt————31,000USD26,334,000USD13,238,000USD10,804,000USD
    Net Tangible Assets————21,909,000USD-29,267,000USD-19,144,000USD-13,725,000USD
    Unclassified Non Current Liabilities————8,220,000USD28,577,000USD15,298,000USD—
    Unclassified Current Liabilities—————-26,334,000USD-13,238,000USD-10,804,000USD
    Other Assets——————12,000USD12,000USD
    Intangible Assets———————25,262,000USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    Cash flow YTD

    Exact reported values; units shown beside each amount. Missing values are —.
    MetricQ2 20262026-06-30 · USD
    Operating Cash Flow-6,728,000USD
    Financing Cash Flow4,877,000USD
    Change In Cash-1,851,000USD
    End Cash Flow5,054,000USD
    SourceDisclosureDeterministicFinal

    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-2,833,000USD-5,708,000USD-3,114,000USD-1,433,000USD-776,000USD-3,775,000USD-3,411,000USD-3,710,000USD
    Stock Based Compensation46,000USD432,000USD379,000USD7,000USD3,000USD8,000USD0USD120,000USD
    Other Non Cash Items-11,000USD-383,000USD-232,000USD-1,043,000USD-126,000USD1,239,000USD-93,000USD-93,000USD
    Change In Working Capital330,000USD1,638,000USD-710,000USD-545,000USD-1,303,000USD60,000USD767,000USD147,000USD
    Total Cash From Operating Activities-2,468,000USD-4,021,000USD-3,677,000USD-3,014,000USD-2,202,000USD-2,468,000USD-2,737,000USD-3,536,000USD
    Capital Expenditures0USD0USD0USD0USD0USD0USD0USD0USD
    Free Cash Flow-2,468,000USD-4,021,000USD-3,677,000USD-3,014,000USD-2,202,000USD-2,468,000USD-2,737,000USD-3,536,000USD
    Total Cash From Financing Activities4,580,000USD8,305,000USD977,000USD5,877,000USD616,000USD0USD0USD2,976,000USD
    Issuance Of Capital Stock4,003,000USD4,005,000USD1,062,000USD5,441,000USD0USD0USD0USD2,976,000USD
    Change In Cash2,112,000USD4,284,000USD-2,700,000USD2,863,000USD-1,586,000USD-2,467,000USD-2,738,000USD7,299,000USD
    Begin Period Cash Flow6,905,000USD2,621,000USD5,321,000USD2,458,000USD4,044,000USD6,511,000USD9,249,000USD1,950,000USD
    End Period Cash Flow9,017,000USD6,905,000USD2,621,000USD5,321,000USD2,458,000USD4,044,000USD6,511,000USD9,249,000USD
    Other Cashflows From Financing Activities4,580,000USD15,919,000USD977,000USD5,877,000USD616,000USD2,976,000USD-1,000USD7,859,000USD
    Unclassified Financing Cash Flow-4,003,000USD-11,475,000USD—-5,356,000USD—-2,976,000USD—-7,859,000USD
    Investments—0USD0USD0USD0USD1,000USD-1,000USD7,859,000USD
    Dividends Paid—-144,000USD-85,000USD-85,000USD————
    Other Cashflows From Investing Activities————-2,824,000USD-2,824,000USD-1,000USD7,859,000USD
    Total Cashflows From Investing Activities—————1,000USD-1,000USD7,859,000USD
    Unclassified Investing Cash Flow—————2,824,000USD—-7,859,000USD
    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 Income-28,354,000USD-13,162,000USD-7,597,000USD-20,884,000USD-58,013,000USD-28,296,000USD-38,647,000USD-259,186,000USD
    Stock Based Compensation432,000USD230,000USD2,200,000USD7,646,000USD33,929,000USD269,000USD5,308,000USD9,696,000USD
    Other Non Cash Items15,928,000USD-800,000USD-5,280,000USD10,000USD538,000USD18,361,000USD25,598,000USD10,180,000USD
    Change In Working Capital-920,000USD828,000USD1,825,000USD-1,989,000USD7,940,000USD2,404,000USD4,078,000USD111,000USD
    Total Cash From Operating Activities-12,914,000USD-12,904,000USD-8,852,000USD-15,217,000USD-15,606,000USD-7,262,000USD-3,659,000USD-10,677,000USD
    Capital Expenditures0USD0USD0USD0USD0USD0USD0USD-36,000USD
    Free Cash Flow-12,914,000USD-12,904,000USD-8,852,000USD-15,217,000USD-15,606,000USD-7,262,000USD-3,659,000USD-10,713,000USD
    Investments0USD12,893,000USD5,019,000USD12,145,000USD-23,040,000USD-23,040,000USD200,000USD-36,000USD
    Total Cash From Financing Activities15,775,000USD2,976,000USD6,268,000USD-224,000USD42,317,000USD12,531,000USD3,427,000USD10,197,000USD
    Dividends Paid-229,000USD0USD——————
    Issuance Of Capital Stock10,508,000USD2,976,000USD6,268,000USD6,268,000USD24,679,000USD0USD——
    Change In Cash2,861,000USD2,965,000USD-4,593,000USD-3,296,000USD3,671,000USD5,269,000USD-32,000USD-516,000USD
    Begin Period Cash Flow4,044,000USD1,079,000USD5,672,000USD8,968,000USD5,297,000USD28,000USD60,000USD576,000USD
    End Period Cash Flow6,905,000USD4,044,000USD1,079,000USD5,672,000USD8,968,000USD5,297,000USD28,000USD60,000USD
    Other Cashflows From Financing Activities16,004,000USD2,976,000USD-2,009,000USD12,145,000USD16,433,000USD12,531,000USD2,167,000USD-533,000USD
    Unclassified Financing Cash Flow-10,508,000USD-2,976,000USD8,278,000USD-12,145,000USD24,679,000USD-12,531,000USD-2,167,000USD—
    Total Cashflows From Investing Activities—12,893,000USD-2,009,000USD12,145,000USD-23,040,000USD-23,040,000USD200,000USD-36,000USD
    Other Cashflows From Investing Activities—12,893,000USD-2,009,000USD-12,145,000USD-23,040USD—200,000USD-36,000USD
    Unclassified Investing Cash Flow—-12,893,000USD-5,019,000USD12,145,000USD————
    Sale Purchase Of Stock——-1,000USD-224,000USD0USD———
    Net Borrowings———0USD1,205,000USD12,531,000USD3,427,000USD10,730,000USD
    Change To Liabilities————7,077,000USD-838,000USD3,154,000USD136,000USD
    Depreciation—————317,000USD4,000USD7,000USD
    Cash And Cash Equivalents Changes—————5,269,000USD——
    Unclassified Operating Cash Flow———————228,515,000USD
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    Operating metrics

    No operating metrics are currently published for this company.

    Revenue breakdown

    No revenue breakdown is currently published for this company.

    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.