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ATOS

ATOSSA THERAPEUTICS, INC.

Company overview

Market capitalization
$19.56M
Employees
16
Latest publication
2026-09-29
About ATOSSA THERAPEUTICS, INC.

Atossa Therapeutics, Inc., a clinical-stage biopharmaceutical company, develops medicines in areas of significant unmet medical need in oncology in the United States. Its lead drug candidate is oral (Z)-endoxifen, a selective estrogen receptor modulator and selective estrogen receptor degrader currently in Phase 2 clinical development for the treatment and reduction of risk of breast cancer, as well as in other therapeutic areas. The company was formerly known as Atossa Genetics Inc. and changed its name to Atossa Therapeutics, Inc. in January 2020. Atossa Therapeutics, Inc. was founded in 2008 and is based in Seattle, Washington.

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
Cost Of Revenue4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD
Gross Profit-4,000USD-4,000USD-4,000USD-4,000USD-4,000USD-4,000USD-4,000USD-4,000USD
Research Development4,779,000USD6,156,000USD5,370,000USD5,502,000USD4,157,000USD3,403,000USD3,412,000USD3,553,000USD
Selling General Administrative5,091,000USD5,280,000USD3,881,000USD3,538,000USD3,257,000USD3,748,000USD2,973,000USD3,552,000USD
Selling And Marketing Expenses4,000USD—4,000USD————4,000USD
Total Operating Expenses9,866,000USD11,436,000USD9,247,000USD9,040,000USD7,414,000USD7,147,000USD6,385,000USD7,105,000USD
Operating Income-9,870,000USD-11,436,000USD-9,251,000USD-9,040,000USD-7,414,000USD-7,151,000USD-6,385,000USD-7,105,000USD
Interest Income309,000USD442,000USD570,000USD645,000USD720,000USD837,000USD1,001,000USD1,073,000USD
Net Interest Income309,000USD442,000USD570,000USD645,000USD720,000USD837,000USD1,001,000USD1,073,000USD
Income Before Tax-9,589,000USD-10,937,000USD-8,692,000USD-8,423,000USD-6,718,000USD-6,347,000USD-7,230,000USD-6,049,000USD
Tax Provision0USD0USD0USD0USD0USD0USD0USD0USD
Net Income-9,589,000USD-10,937,000USD-8,692,000USD-8,423,000USD-6,718,000USD-6,347,000USD-7,230,000USD-6,049,000USD
Net Income From Continuing Ops-9,589,000USD-10,937,000USD-8,692,000USD-8,423,000USD-6,718,000USD-6,347,000USD-7,230,000USD-6,049,000USD
Ebit-9,870,000USD-11,436,000USD-8,692,000USD-9,040,000USD-7,414,000USD-7,151,000USD-6,385,000USD-7,105,000USD
Ebitda-9,866,000USD-11,432,000USD-8,688,000USD-9,036,000USD-7,410,000USD-7,147,000USD-6,381,000USD-7,101,000USD
Depreciation And Amortization4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD
Reconciled Depreciation4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD
Total Other Income Expense Net281,000USD499,000USD559,000USD617,000USD696,000USD804,000USD-845,000USD1,056,000USD
Income Tax Expense——————-7,230,000USD—
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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
Cost Of Revenue16,000USD17,000USD23,000USD8,000USD23,000USD46,600USD52,789USD44,197USD
Gross Profit-16,000USD-17,000USD-23,000USD-8,000USD-23,000USD-46,600USD-52,789USD-44,197USD
Research Development21,185,000USD14,117,000USD17,334,000USD15,083,000USD9,210,000USD6,608,000USD7,131,967USD4,209,981USD
Selling General Administrative15,956,000USD13,504,000USD14,043,000USD12,608,000USD11,311,000USD7,999,000USD10,620,008USD7,224,252USD
Total Operating Expenses37,141,000USD27,621,000USD31,377,000USD27,691,000USD20,521,000USD14,607,000USD17,265,425USD11,434,233USD
Operating Income-37,141,000USD-27,621,000USD-31,377,000USD-27,691,000USD-20,521,000USD-14,607,000USD-17,265,425USD-11,434,233USD
Interest Income2,377,000USD4,050,000USD3,777,000USD877,000USD6,000USD———
Net Interest Income2,377,000USD4,050,000USD3,777,000USD877,000USD6,000USD-938,794USD0USD—
Income Before Tax-34,770,000USD-25,504,000USD-30,094,000USD-26,960,000USD-20,606,000USD-17,828,000USD-17,239,777USD-11,404,934USD
Tax Provision0USD0USD0USD0USD0USD0USD0USD—
Net Income-34,770,000USD-25,504,000USD-30,094,000USD-26,229,000USD-20,606,000USD-17,828,000USD-17,239,777USD-11,404,934USD
Net Income From Continuing Ops-34,770,000USD-25,504,000USD-29,831,000USD-26,960,000USD-20,606,000USD-17,827,952USD-17,239,777USD-11,404,934USD
Ebit-37,141,000USD-27,621,000USD-31,377,000USD-27,691,000USD-20,521,000USD-14,607,000USD-17,265,425USD-11,434,233USD
Ebitda-37,125,000USD-27,604,000USD-31,354,000USD-27,683,000USD-20,498,000USD-14,560,000USD-17,212,636USD-11,390,036USD
Depreciation And Amortization16,000USD17,000USD23,000USD8,000USD23,000USD47,000USD52,789USD44,197USD
Reconciled Depreciation16,000USD17,000USD11,000USD8,000USD23,000USD46,520USD52,789USD44,197USD
Total Other Income Expense Net2,371,000USD2,117,000USD1,283,000USD731,000USD-85,000USD-3,221,000USD25,648USD29,299USD
Interest Expense———8,000USD85,000USD938,794USD0USD0USD
Income Tax Expense———-731,000USD-213,558USD3,271,361USD-119,071USD-29,299USD
Non Operating Income Net Other———731,000USD-85,000USD-2,281,766USD25,648USD29,299USD
Net Income Applicable To Common Shares———-26,960,000USD-20,606,000USD-22,330,751USD-17,239,777USD-22,884,242USD
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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 Assets32,281,000USD37,943,000USD47,608,000USD58,012,000USD64,515,000USD70,747,000USD76,444,000USD79,477,000USD
Cash And Equivalents26,094,000USD———————
Total Current Assets31,010,000USD36,668,000USD45,618,000USD55,678,000USD62,517,000USD68,744,000USD74,457,000USD77,111,000USD
Other Current Assets1,793,000USD4,950,000USD4,319,000USD3,833,000USD1,185,000USD3,628,000USD3,373,000USD2,345,000USD
Other Non Current Assets1,271,000USD———————
Total Liabilities5,451,000USD———————
Total Current Liabilities5,451,000USD7,457,000USD8,255,000USD8,225,000USD6,820,000USD5,425,000USD4,967,000USD5,796,000USD
Other Current Liabilities1,123,000USD———————
Total Stockholder Equity26,830,000USD30,486,000USD39,353,000USD49,787,000USD57,695,000USD65,322,000USD71,477,000USD73,681,000USD
Total Equity Including Noncontrolling Interest26,830,000USD———————
Accounts Payable1,976,000USD2,569,000USD4,293,000USD3,536,000USD2,010,000USD1,165,000USD679,000USD1,561,000USD
Common Stock1,796,000USD1,550,000USD1,550,000USD23,488,000USD23,488,000USD23,488,000USD23,488,000USD22,882,000USD
Retained Earnings-264,642,000USD-256,151,000USD-246,562,000USD-235,625,000USD-226,933,000USD-218,510,000USD-211,792,000USD-205,445,000USD
Total Liab—7,457,000USD8,255,000USD8,225,000USD6,820,000USD5,425,000USD4,967,000USD5,796,000USD
Other Current Liab—4,888,000USD3,962,000USD4,689,000USD4,810,000USD4,260,000USD4,288,000USD4,235,000USD
Capital Stock—1,550,000USD1,550,000USD23,488,000USD23,488,000USD23,488,000USD23,488,000USD22,882,000USD
Cash—31,718,000USD41,299,000USD51,845,000USD57,857,000USD65,116,000USD71,084,000USD74,766,000USD
Cash And Short Term Investments—31,718,000USD41,299,000USD51,845,000USD57,857,000USD65,116,000USD71,084,000USD74,766,000USD
Net Debt—-31,718,000USD-41,299,000USD-51,845,000USD-57,857,000USD-65,116,000USD-71,084,000USD-74,766,000USD
Common Stock Shares Outstanding—8,622,289shares8,611,317shares8,611,428shares8,611,362shares8,611,334shares8,441,426shares8,384,844shares
Non Current Assets Total—1,275,000USD1,990,000USD2,334,000USD1,998,000USD2,003,000USD1,987,000USD2,366,000USD
Non Current Liabilities Total—0USD0USD0USD0USD0USD0USD0USD
Non Currrent Assets Other—1,275,000USD1,990,000USD2,334,000USD1,998,000USD2,003,000USD1,987,000USD2,366,000USD
Net Working Capital—29,211,000USD37,363,000USD47,453,000USD55,697,000USD63,319,000USD69,490,000USD71,315,000USD
Unclassified Equity—283,537,000USD282,815,000USD238,436,000USD237,652,000USD236,856,000USD236,293,000USD233,362,000USD
Inventory————3,475,000USD———
Accumulated Other Comprehensive Income————0USD———
Long Term Investments——————0USD0USD
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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 Assets47,608,000USD76,444,000USD96,252,000USD123,532,000USD141,262,000USD42,843,244USD14,500,638USD11,720,446USD
Other Current Assets4,319,000USD3,373,000USD2,272,000USD1,317,000USD3,791,000USD2,471,564USD888,474USD650,776USD
Total Liab8,255,000USD4,967,000USD5,236,000USD5,568,000USD3,126,000USD15,675,312USD1,344,633USD2,915,436USD
Total Stockholder Equity39,353,000USD71,477,000USD91,016,000USD117,964,000USD138,136,000USD27,167,932USD13,156,005USD8,805,010USD
Other Current Liab3,962,000USD4,288,000USD4,430,000USD2,603,000USD1,409,000USD14,046,855USD950,829USD2,562,108USD
Common Stock1,550,000USD23,488,000USD22,792,000USD22,792,000USD22,792,000USD8,558,778USD1,643,565USD1,052,372USD
Capital Stock1,550,000USD23,488,000USD22,792,000USD22,792,000USD22,792,000USD8,558,779USD1,643,566USD1,052,374USD
Retained Earnings-246,562,000USD-211,792,000USD-186,288,000USD-156,194,000USD-129,234,000USD-111,898,992USD-94,071,040USD-76,831,263USD
Cash41,299,000USD71,084,000USD88,460,000USD110,890,000USD136,377,000USD39,663,671USD12,691,136USD10,380,493USD
Cash And Short Term Investments41,299,000USD71,084,000USD88,460,000USD110,890,000USD136,377,000USD39,663,671USD12,691,136USD10,380,493USD
Total Current Assets45,618,000USD74,457,000USD92,219,000USD118,197,000USD141,240,000USD42,770,175USD14,319,266USD11,549,366USD
Total Current Liabilities8,255,000USD4,967,000USD5,236,000USD5,568,000USD3,126,000USD15,671,521USD1,322,742USD2,915,436USD
Net Debt-41,299,000USD-71,084,000USD-88,460,000USD-110,890,000USD-136,377,000USD-39,645,618USD-12,640,657USD-10,380,493USD
Accounts Payable4,293,000USD679,000USD806,000USD2,965,000USD1,717,000USD1,588,613USD293,171USD353,328USD
Common Stock Shares Outstanding8,611,321shares8,390,618shares8,405,400shares8,441,600shares7,796,667shares753,902shares566,464shares277,183shares
Non Current Assets Total1,990,000USD1,987,000USD4,033,000USD5,335,000USD22,000USD73,068USD181,371USD171,080USD
Non Current Liabilities Total0USD0USD0USD1,000USD1,000USD3,790USD21,890USD353,328USD
Non Currrent Assets Other1,990,000USD1,987,000USD2,323,000USD635,000USD2,000USD17,217USD17,217USD17,218USD
Net Working Capital37,363,000USD69,490,000USD86,983,000USD112,629,000USD138,114,000USD27,098,654USD12,996,524USD8,633,930USD
Unclassified Equity282,815,000USD236,293,000USD231,720,000USD228,574,000USD222,368,000USD121,949,367USD103,939,914USD83,531,527USD
Long Term Investments—0USD1,710,000USD4,700,000USD0USD———
Net Receivables——-1,425,000USD743,000USD1,072,000USD634,940USD739,656USD518,097USD
Inventory——1,487,000USD5,247,000USD2,598,000USD1,923,902USD972,344USD619,833USD
Accumulated Other Comprehensive Income——0USD0USD-582,000USD—0USD—
Other Assets———635,000USD2,000USD0USD350USD17,218USD
Net Tangible Assets———117,964,000USD137,554,000USD26,533,557USD13,156,004USD8,705,633USD
Property Plant Equipment Net————20,000USD38,685USD84,829USD54,487USD
Property Plant Equipment Gross————36,000USD20,632USD84,479USD54,487USD
Unclassified Current Assets————-2,598,000USD-1,923,902USD——
Intangible Assets—————13,375USD68,542USD99,375USD
Current Deferred Revenue—————1,057,032USD977,308USD—
Short Term Debt—————36,053USD78,742USD—
Short Long Term Debt Total—————18,053USD50,479USD—
Unclassified Current Liabilities—————-1,057,032USD——
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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-9,589,000USD-10,937,000USD-8,692,000USD-8,423,000USD-6,718,000USD-6,347,000USD-7,230,000USD-6,049,000USD
Depreciation4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD4,000USD
Stock Based Compensation722,000USD503,000USD784,000USD796,000USD563,000USD774,000USD749,000USD352,000USD
Other Non Cash Items722,000USD-301,000USD784,000USD845,000USD—4,000USD1,709,000USD2,000USD
Change In Working Capital-718,000USD-109,000USD1,899,000USD364,000USD192,000USD-1,486,000USD18,000USD1,160,000USD
Total Cash From Operating Activities-9,581,000USD-10,539,000USD-6,005,000USD-7,259,000USD-5,959,000USD-7,051,000USD-4,750,000USD-4,531,000USD
Capital Expenditures0USD-7,000USD-7,000USD0USD-9,000USD0USD-10,000USD-3,000USD
Free Cash Flow-9,581,000USD-10,546,000USD-6,012,000USD-7,259,000USD-5,968,000USD-7,051,000USD-4,760,000USD-4,534,000USD
Change In Cash-9,581,000USD-10,546,000USD-6,012,000USD-7,259,000USD-5,968,000USD-3,682,000USD-4,760,000USD-4,434,000USD
Begin Period Cash Flow41,409,000USD51,955,000USD57,967,000USD65,226,000USD71,194,000USD74,876,000USD79,636,000USD84,070,000USD
End Period Cash Flow31,828,000USD41,409,000USD51,955,000USD57,967,000USD65,226,000USD71,194,000USD74,876,000USD79,636,000USD
Total Cashflows From Investing Activities—-7,000USD-7,000USD—-9,000USD—-10,000USD-3,000USD
Total Cash From Financing Activities—0USD0USD0USD0USD3,369,000USD0USD100,000USD
Investments——-7,000USD0USD-9,000USD0USD-10,000USD-3,000USD
Change To Inventory———-1,396,000USD19,000USD———
Sale Purchase Of Stock—————0USD——
Other Cashflows From Financing Activities—————3,369,000USD-273,000USD100,000USD
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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-34,770,000USD-25,504,000USD-30,094,000USD-26,960,000USD-20,606,000USD-17,827,952USD-17,239,777USD-11,404,934USD
Depreciation16,000USD17,000USD23,000USD8,000USD23,000USD46,520USD52,789USD44,197USD
Stock Based Compensation2,646,000USD2,292,000USD4,621,000USD6,788,000USD5,267,000USD3,019,409USD8,844,037USD2,463,521USD
Other Non Cash Items2,346,000USD1,717,000USD2,990,000USD3,000USD5,622,000USD938,794USD5,806USD2,693,309USD
Change To Inventory-983,000USD-611,000USD2,544,000USD-329,000USD437,000USD-104,716USD221,558USD—
Change In Working Capital2,346,000USD448,000USD1,519,000USD-599,000USD-1,156,000USD-111,352USD-791,297USD-64,405USD
Total Cash From Operating Activities-29,762,000USD-21,030,000USD-20,941,000USD-20,760,000USD-16,472,000USD-11,570,282USD-9,128,442USD-8,961,621USD
Capital Expenditures-23,000USD-19,000USD-14,000USD-27,000USD-9,000USD-9,367USD-7,628USD-110,906USD
Free Cash Flow-29,785,000USD-21,049,000USD-20,955,000USD-20,787,000USD-16,481,000USD-11,579,649USD-9,136,070USD-9,072,527USD
Total Cashflows From Investing Activities-23,000USD-19,000USD-14,000USD-4,727,000USD-9,000USD-9,367USD-7,625USD-110,906USD
Total Cash From Financing Activities0USD3,673,000USD-1,475,000USD1,000USD113,304,000USD38,552,184USD11,336,710USD12,290,551USD
Change In Cash-29,785,000USD-17,376,000USD-22,430,000USD-25,487,000USD96,823,000USD26,972,535USD2,200,643USD3,218,024USD
Begin Period Cash Flow71,194,000USD88,570,000USD111,000,000USD136,487,000USD39,664,000USD12,691,136USD10,490,493USD7,272,469USD
End Period Cash Flow41,409,000USD71,194,000USD88,570,000USD111,000,000USD136,487,000USD39,663,671USD12,691,136USD10,490,493USD
Unclassified Operating Cash Flow-2,346,000USD———-5,622,000USD2,364,299USD—-2,693,309USD
Investments—-19,000USD-2,022,000USD-4,727,000USD-9,000USD-9,367USD-7,625USD-110,906USD
Sale Purchase Of Stock—0USD-1,475,000USD0USD-573USD9,612,166USD11,336,710USD12,290,551USD
Other Cashflows From Financing Activities—3,673,000USD-1,473,525USD-4,727,000USD43,636,000USD9,435,596USD11,336,710USD12,290,551USD
Change To Account Receivables——743,000USD329,000USD-437,000USD104,716USD-221,558USD-159,821USD
Other Cashflows From Investing Activities——-13,986USD-4,700USD-9,000USD-9,367USD-7,625USD-110,906USD
Unclassified Investing Cash Flow——2,035,986USD—————
Unclassified Financing Cash Flow——1,473,525USD4,728,000USD69,668,573USD24,007,221USD-11,336,710USD-12,290,551USD
Change To Liabilities———2,442,000USD128,000USD1,295,442USD-222,040USD280,004USD
Issuance Of Capital Stock———0USD69,668,000USD38,566,606USD347,627USD12,290,551USD
Cash And Cash Equivalents Changes———-25,487,000USD96,823,000USD26,972,535USD2,200,643USD3,218,024USD
Dividends Paid—————-4,502,799USD——
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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.