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    RNTX

    Rein Therapeutics, Inc.

    Company overview

    Market capitalization
    $62.20M
    Employees
    10
    Latest publication
    2026-09-29
    About Rein Therapeutics, Inc.

    Rein Therapeutics Inc., a biopharmaceutical company, focuses on developing medicines to address unmet medical needs in orphan pulmonary and fibrosis indications in the United States. The company's lead product candidate is LTI-03, a peptide, which is in Phase 2 clinical trial for the treatment of idiopathic pulmonary fibrosis (IPF). It also offers LTI-01, a proenzyme that has completed Phase 1b and Phase 2a clinical trials in LPE patients for the treatment of loculated pleural effusion. The company's pipeline also includes preclinical programs targeting cystic fibrosis and a peptide program focused on the caveolin-1 protein for systemic fibrosis indications; and LTI-05, an epithelial sodium channel, which is in preclinical trial phase for the treatment of cystic fibrosis. The company was formerly known as Aileron Therapeutics, Inc. and changed its name to Rein Therapeutics Inc. in February 2007. The company was incorporated in 2001 and is headquartered in Austin, Texas.

    Company website

    Financial statements

    Income 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 Revenue0USD0USD0USD0USD0USD0USD0USD0USD
    Research Development3,638,000USD3,073,000USD2,002,000USD1,681,000USD4,292,000USD3,054,000USD3,322,000USD3,722,000USD
    Selling General Administrative2,438,000USD2,157,000USD1,958,000USD3,811,000USD2,579,000USD2,555,000USD2,475,000USD2,349USD
    General And Administrative Expenses2,438,000USD———————
    Total Operating Expenses6,076,000USD5,230,000USD3,959,000USD5,492,000USD6,871,000USD5,609,000USD42,797,000USD6,071,000USD
    Operating Income-6,076,000USD-5,230,000USD-3,959,000USD-5,492,000USD-6,871,000USD-5,609,000USD-42,797,000USD-6,071,000USD
    Total Other Income Expense Net-299,000USD-608,000USD-28,720,000USD-89,000USD49,000USD108,000USD272,000USD224,000USD
    Net Income-6,375,000USD-5,838,000USD-31,967,000USD-5,581,000USD-6,822,000USD-5,501,000USD-40,981,000USD-5,847,000USD
    Income Before Tax—-5,838,000USD-32,679,000USD-5,581,000USD-6,822,000USD-5,501,000USD-42,410,000USD-5,847,000USD
    Net Income From Continuing Ops—-5,838,000USD-31,967,000USD-5,581,000USD-6,822,000USD-5,501,000USD-40,866,000USD-5,847,000USD
    Ebitda—-5,230,000USD-3,870,000USD-5,492,000USD-6,870,000USD-5,609,000USD-5,797USD-5,847,000USD
    Income Tax Expense——-712,000USD——-1,544,000USD1,544USD—
    Ebit——-32,570,000USD—-6,871,000USD-5,797,000USD-5,797,000USD5,722,195USD
    Depreciation And Amortization——-1,000USD—1,000USD5,791,203USD5,791,203USD-5,728,266USD
    Reconciled Depreciation——0USD0USD1,000USD0USD0USD0USD
    Cost Of Revenue————1,000USD———
    Gross Profit————-1,000USD———
    Selling And Marketing Expenses——————2,472,525USD—
    Unclassified Operating Expenses——————34,527,475USD2,346,651USD
    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 20222022-12-31 · USDFY 20212021-12-31 · USDFY 20202020-12-31 · USD
    Total Revenue0USD0USD0USD0USD0USD0USD
    Cost Of Revenue1,000USD63,000USD————
    Gross Profit-1,000USD-63,000USD————
    Research Development11,029,000USD14,248,000USD3,991USD17,967USD17,008USD11,166USD
    Selling General Administrative10,902,000USD13,864,000USD11,357USD9,680USD9,597USD9,330USD
    Total Operating Expenses21,930,000USD65,112,000USD16,276USD27,647USD26,605USD20,496USD
    Operating Income-21,931,000USD-65,112,000USD-16,276USD-27,647USD-26,605USD-20,496USD
    Income Before Tax-50,583,000USD-64,312,000USD-15,732USD-27,329USD-26,164USD-21,157USD
    Income Tax Expense-712,000USD-1,544,000USD————
    Tax Provision-712,000USD-1,544,000USD0USD———
    Net Income-49,871,000USD-62,883,000USD-15,732USD-27,329USD-26,164USD-21,157USD
    Net Income From Continuing Ops-49,871,000USD-62,768,000USD-15,676,000USD-27,329,000USD-26,164,000USD-21,196,000USD
    Ebit-21,931,000USD-28,112,000USD-15,348USD-27,647USD-26,605USD-20,496USD
    Ebitda-21,930,000USD-28,049,000USD-15,229USD-27,478USD-26,484USD-20,333USD
    Depreciation And Amortization1,000USD63,000USD119USD169USD121USD163USD
    Reconciled Depreciation1,000USD63,000USD119,000USD169,000USD121,000USD163,000USD
    Total Other Income Expense Net-28,652,000USD800,000USD544USD318USD441USD-661USD
    Selling And Marketing Expenses—13,850,136USD————
    Unclassified Operating Expenses—23,149,864USD————
    Interest Income—400,000USD400,000USD300,000USD——
    Net Interest Income—400,000USD400,000USD300,000USD——
    SourceLegacy 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 Assets65,973,000USD26,288,000USD24,158,000USD53,706,000USD57,479,000USD57,628,000USD62,190,000USD104,217,000USD
    Cash And Equivalents8,542,000USD———————
    Cash And Short Term Investments40,647,000USD4,445,000USD3,215,000USD4,048,000USD5,722,000USD7,428,000USD12,865,000USD17,652,000USD
    Short Term Investments32,105,000USD———————
    Long Term Investments2,980,000USD———————
    Total Current Assets41,453,000USD5,453,000USD4,326,000USD5,174,000USD6,602,000USD8,331,000USD13,657,000USD18,684,000USD
    Other Current Assets727,000USD1,008,000USD1,111,000USD1,126,000USD880,000USD903,000USD792,000USD1,032,000USD
    Other Non Current Assets1,710,000USD———————
    Total Liabilities10,769,000USD———————
    Total Current Liabilities9,709,000USD13,637,000USD6,180,000USD5,744,000USD7,694,000USD5,977,000USD5,749,000USD5,659,000USD
    Total Stockholder Equity55,204,000USD11,591,000USD16,918,000USD46,190,000USD3,008,000USD4,874,000USD54,392,000USD50,227,000USD
    Total Equity Including Noncontrolling Interest55,204,000USD———————
    Goodwill6,330,000USD———————
    Intangible Assets13,500,000USD13,500,000USD13,500,000USD42,200,000USD42,200,000USD42,200,000USD42,200,000USD79,200,000USD
    Accounts Payable4,466,000USD6,263,000USD3,976,000USD4,123,000USD6,028,000USD1,149,000USD911,000USD1,079,000USD
    Common Stock172,000USD114,000USD113,000USD111,000USD131,000USD108,000USD108,000USD108,000USD
    Retained Earnings-413,484,000USD-407,109,000USD-401,271,000USD-369,304,000USD-363,723,000USD-356,901,000USD-351,400,000USD-310,419,000USD
    Accumulated Other Comprehensive Income-69,000USD-62,000USD-62,000USD-44,000USD-44,000USD-32,000USD-18,000USD-26,000USD
    Total Liab—14,697,000USD7,240,000USD7,516,000USD54,471,000USD52,754,000USD7,798,000USD53,990,000USD
    Other Current Liab—2,451,000USD2,204,000USD1,621,000USD1,666,000USD4,828,000USD4,838,000USD4,580,000USD
    Capital Stock—114,000USD113,000USD111,000USD131,000USD108,000USD108,000USD108,000USD
    Good Will—6,330,000USD6,330,000USD6,330,000USD6,330,000USD6,330,000USD6,330,000USD6,330,000USD
    Cash—4,445,000USD3,215,000USD4,048,000USD5,722,000USD7,428,000USD12,865,000USD17,652,000USD
    Net Debt—478,000USD-3,215,000USD-4,048,000USD-5,722,000USD-7,428,000USD-12,865,000USD-17,652,000USD
    Short Term Debt—4,923,000USD——————
    Short Long Term Debt—4,923,000USD——————
    Short Long Term Debt Total—4,923,000USD——————
    Common Stock Shares Outstanding—30,354,647shares25,444,795shares26,361,386shares24,187,536shares22,940,268shares21,693shares21,663,000shares
    Non Current Assets Total—20,835,000USD19,832,000USD48,532,000USD50,877,000USD49,297,000USD48,533,000USD85,533,000USD
    Non Current Liabilities Total—1,060,000USD1,060,000USD1,772,000USD46,777,000USD46,777,000USD47,054,000USD48,331,000USD
    Non Currrent Assets Other—1,005,000USD2,000USD2,000USD2,346,000USD766,000USD2,000USD2,000USD
    Net Working Capital—-8,184,000USD-1,854,000USD-570,000USD-1,092,000USD2,354,000USD7,908,000USD13,025,000USD
    Unclassified Current Liabilities—-4,923,000USD——————
    Unclassified Non Current Liabilities—1,060,000USD1,060,000USD1,772,000USD46,777,000USD46,777,000USD46,777,000USD48,331,000USD
    Unclassified Equity—418,534,000USD418,025,000USD415,316,000USD366,513,000USD361,591,000USD405,594,000USD360,456,000USD
    Property Plant Equipment Net——0USD0USD1,000USD1,000USD1,000USD1,000USD
    Non Current Liabilities Other——————277,000USD—
    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 Assets24,158,000USD69,240,000USD106,008,000USD22,007,000USD48,481,000USD16,341,000USD26,473,000USD30,312,000USD
    Intangible Assets13,500,000USD48,530,000USD79,200,000USD—————
    Other Current Assets1,111,000USD792,000USD953,000USD631,000USD2,244,000USD2,521,000USD1,272,000USD1,080,000USD
    Total Liab7,240,000USD14,848,000USD99,121,000USD3,384,000USD4,577,000USD4,179,000USD10,425,000USD10,712,000USD
    Total Stockholder Equity16,918,000USD54,392,000USD6,887,000USD18,623,000USD43,904,000USD12,162,000USD16,048,000USD19,600,000USD
    Other Current Liab2,204,000USD4,838,000USD3,147,000USD1,631,000USD3,205,000USD2,196,000USD3,941,000USD3,639,000USD
    Common Stock113,000USD108,000USD91,000USD91,000USD91,000USD44,000USD28,000USD15,000USD
    Capital Stock113,000USD108,000USD91,000USD91,000USD91,000USD44,000USD——
    Retained Earnings-401,271,000USD-351,400,000USD-288,517,000USD-272,785,000USD-245,456,000USD-219,292,000USD-198,135,000USD-168,493,000USD
    Good Will6,330,000USD6,330,000USD6,330,000USD0USD————
    Cash3,215,000USD12,865,000USD17,313,000USD5,194,000USD3,600,000USD7,046,000USD5,311,000USD10,635,000USD
    Cash And Short Term Investments3,215,000USD12,865,000USD17,313,000USD21,242,000USD45,933,000USD13,805,000USD18,278,000USD20,695,000USD
    Total Current Assets4,326,000USD13,657,000USD18,266,000USD21,873,000USD48,177,000USD16,326,000USD19,550,000USD21,775,000USD
    Total Current Liabilities6,180,000USD5,749,000USD4,385,000USD3,384,000USD4,508,000USD3,960,000USD5,839,000USD5,370,000USD
    Net Debt-3,215,000USD-12,865,000USD-17,265,000USD-5,161,000USD-3,438,000USD-6,659,000USD-279,000USD-5,293,000USD
    Accounts Payable3,976,000USD911,000USD1,190,000USD1,720,000USD1,210,000USD1,596,000USD1,452,000USD1,731,000USD
    Property Plant Equipment Net0USD1,000USD19,000USD110,000USD280,000USD15,000USD6,355,000USD7,290,000USD
    Accumulated Other Comprehensive Income-62,000USD-18,000USD-63,000USD-48,000USD-13,000USD-2,000USD7,000USD-5,000USD
    Common Stock Shares Outstanding25,444,795shares17,938,000shares4,598,000shares4,539,000shares4,440,000shares17,433,350shares——
    Non Current Assets Total19,832,000USD55,583,000USD87,742,000USD134,000USD304,000USD15,000USD6,923,000USD8,537,000USD
    Non Current Liabilities Total1,060,000USD9,099,000USD94,736,000USD0USD69,000USD219,000USD4,586,000USD5,342,000USD
    Non Currrent Assets Other2,000USD2,000USD2,193,000USD24,000USD24,000USD—568,000USD1,247,000USD
    Net Working Capital-1,854,000USD7,908,000USD13,881,000USD18,489,000USD43,669,000USD12,366,000USD——
    Unclassified Non Current Liabilities1,060,000USD8,822,000USD94,736,000USD———4,586,000USD5,342,000USD
    Unclassified Equity418,025,000USD405,594,000USD295,285,000USD291,274,000USD289,191,000USD231,368,000USD214,148,000USD188,083,000USD
    Non Current Liabilities Other—277,000USD——————
    Short Term Debt——48,000USD33,000USD93,000USD168,000USD446,000USD—
    Short Long Term Debt Total——48,000USD33,000USD162,000USD387,000USD5,032,000USD5,342,000USD
    Short Term Investments——0USD16,048,000USD42,333,000USD6,759,000USD12,967,000USD10,060,000USD
    Property Plant Equipment Gross——377,000USD380,000USD492,000USD181,000USD——
    Short Long Term Debt—————168,000USD——
    Long Term Debt—————219,000USD——
    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
    Depreciation0USD
    Stock Based Compensation320,000USD
    Change To Liabilities-262,000USD
    Change In Working Capital-1,003,000USD
    Operating Cash Flow-12,064,000USD
    Investing Cash Flow-35,073,000USD
    Financing Cash Flow52,469,000USD
    Effect Of Forex Changes On Cash-5,000USD
    Change In Cash5,327,000USD
    End Cash Flow8,542,000USD
    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-5,838,000USD-31,967,000USD-5,581,000USD-6,822,000USD-5,501,000USD-40,981,000USD-5,847,000USD-8,942,000USD
    Depreciation623,000USD0USD0USD1,000USD0USD0USD0USD4,000USD
    Stock Based Compensation156,000USD257,000USD1,447,000USD256,000USD264,000USD133,000USD508,000USD326,000USD
    Other Non Cash Items1,635,000USD29,462,000USD400,000USD—37,000,000USD37,000,000USD——
    Change In Working Capital1,635,000USD-260,000USD186,000USD147,000USD-938,000USD-964,000USD1,520,000USD223,000USD
    Total Cash From Operating Activities-3,424,000USD-3,220,000USD-3,548,000USD-6,418,000USD-6,175,000USD-4,812,000USD-3,819,000USD-8,389,000USD
    Capital Expenditures0USD0USD0USD0USD0USD0USD0USD0USD
    Free Cash Flow-3,424,000USD-3,220,000USD-3,548,000USD-6,418,000USD-6,175,000USD-4,812,000USD-3,819,000USD-8,389,000USD
    Net Borrowings4,300,000USD———0USD———
    Total Cash From Financing Activities4,654,000USD2,405,000USD1,900,000USD4,712,000USD738,000USD1,000USD-446,000USD18,263,000USD
    Issuance Of Capital Stock354,000USD1,452,000USD1,595,000USD-370,000USD737,000USD0USD-292,000USD10,937,000USD
    Change In Cash1,230,000USD-833,000USD-1,674,000USD-1,706,000USD-5,437,000USD-4,812,000USD-4,265,000USD9,875,000USD
    Begin Period Cash Flow3,215,000USD4,048,000USD5,722,000USD7,428,000USD12,865,000USD17,677,000USD21,942,000USD12,067,000USD
    End Period Cash Flow4,445,000USD3,215,000USD4,048,000USD5,722,000USD7,428,000USD12,865,000USD17,677,000USD21,942,000USD
    Other Cashflows From Financing Activities4,654,000USD-1,900,000USD1,900,000USD5,082,000USD1,000USD1,000USD-154,000USD7,326,000USD
    Unclassified Operating Cash Flow-1,635,000USD———-37,000,000USD———
    Unclassified Financing Cash Flow-4,654,000USD2,853,000USD-1,595,000USD—————
    Investments—————0USD0USD0USD
    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-49,871,000USD-62,883,000USD-15,732,000USD-27,329,000USD-26,164,000USD-21,157,000USD-29,369,000USD-31,547,000USD
    Depreciation1,000USD63,000USD119,000USD169,000USD121,000USD163,000USD155,000USD218,000USD
    Stock Based Compensation2,224,000USD1,117,000USD1,190,000USD2,083,000USD2,260,000USD1,893,000USD2,116,000USD3,280,000USD
    Other Non Cash Items29,862,000USD37,000,000USD-4,000USD-208,000USD-213,000USD-95,000USD-226,000USD-253,000USD
    Change In Working Capital-865,000USD2,412,000USD-5,381,000USD420,000USD242,000USD-1,280,000USD850,000USD376,000USD
    Total Cash From Operating Activities-19,361,000USD-22,291,000USD-19,808,000USD-24,865,000USD-23,754,000USD-20,476,000USD-26,474,000USD-27,926,000USD
    Capital Expenditures0USD0USD0USD0USD-157,000USD-5,000USD-151,000USD-4,423,000USD
    Free Cash Flow-19,361,000USD-22,291,000USD-19,808,000USD-24,865,000USD-23,911,000USD-20,481,000USD-26,625,000USD-32,349,000USD
    Total Cash From Financing Activities9,755,000USD17,818,000USD15,794,000USD0USD55,657,000USD15,800,000USD23,964,000USD2,515,000USD
    Issuance Of Capital Stock3,414,000USD10,645,000USD0USD0USD55,583,000USD15,413,000USD——
    Change In Cash-9,650,000USD-4,473,000USD12,119,000USD1,594,000USD-4,014,000USD1,735,000USD-5,324,000USD-723,000USD
    Begin Period Cash Flow12,865,000USD17,338,000USD5,219,000USD3,625,000USD7,639,000USD5,904,000USD11,228,000USD11,951,000USD
    End Period Cash Flow3,215,000USD12,865,000USD17,338,000USD5,219,000USD3,625,000USD7,639,000USD5,904,000USD11,228,000USD
    Other Cashflows From Financing Activities9,755,000USD7,173,000USD15,794,000USD—74,000USD—165,000USD42,000USD
    Unclassified Financing Cash Flow-3,414,000USD—————23,799,000USD2,473,000USD
    Investments—0USD16,196,000USD26,459,000USD-35,917,000USD6,411,000USD——
    Total Cashflows From Investing Activities——16,196,000USD26,459,000USD-35,917,000USD6,411,000USD-2,814,000USD24,688,000USD
    Other Cashflows From Investing Activities——42,000USD—66,000USD208,000USD——
    Net Borrowings————0USD———
    Unclassified Investing Cash Flow——————-2,663,000USD29,111,000USD
    SourceLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacyLegacy providerLegacy

    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.