State Ledger
Company profile

ATOSSA THERAPEUTICS, INC. CIK 1488039

Ticker
ATOS (Nasdaq)
Industry
Pharmaceutical Preparations
Headquarters
Seattle, WA 98107
Fiscal year end
2025 (FY)
Market Data
Close
$2.34
Change
-$0.07
Change %
-2.90%
Volume
1,662

ATOS · trading date Oct 12, 2026 · previous close $2.41 · source: Alpaca (IEX feed, not consolidated full-market data).

Key Financials
Revenue
—
Net income
-$34.77M
Total assets
$47.61M
Total liabilities
$8.26M
Stockholders' equity
$39.35M
Cash & equivalents
$41.30M
Operating income
-$37.14M
Operating cash flow
-$29.76M
Capital expenditures
$23.0K

Fiscal year 2025, via 10-K filed 2026-03-25. A dash means this figure wasn't reported in the source filing under a field State Ledger recognizes - not that the value is zero.

Financial Performance
Operating margin
—
Net margin
—
Free cash flow
-$29.79M
Free cash flow margin
—
Liabilities / assets
17.3%
Equity / assets
82.7%
CapEx / revenue
—
Operating cash flow / net income
0.86×

Derived from the fiscal year 2025 figures above. These metrics are mathematical calculations and do not represent a rating or assessment of the company.

Financial History
Fiscal yearRevenueNet incomeAssetsLiabilitiesEquity
2025 — -$34.77M $47.61M $8.26M $39.35M
2024 — -$25.50M $76.44M $4.97M $71.48M
2023 — -$30.09M $96.25M $5.24M $91.02M
2022 — -$26.96M $123.53M $5.57M $117.96M
2021 — -$20.61M $141.26M $3.13M $138.14M
Company Details
SIC code
2834
State of incorporation
DE
Active filer
Yes
Most recent SEC filing
Form 8-K
2026-09-18
Financials filed via
Form 10-K
filed 2026-03-25

"Most recent SEC filing" may differ from the filing used for the financial figures above.

Location
Seattle, WA 98107
1448 NW MARKET STREET
Data & Methodology

SEC EDGAR submissions API (identity, collected Sep 19, 2026, 15:11 UTC) and SEC XBRL Company Facts API (financials, collected Sep 26, 2026, 16:01 UTC) · figures as originally filed, not restated · a dash always means a value wasn't reported, never a real zero.

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