ATOS · Atossa Therapeutics, Inc.

NASDAQ NMS - GLOBAL MARKET - BOATS Real Time Price • USD

Atossa Therapeutics Inc (ATOS)

NASDAQ NMS - GLOBAL MARKET Biotechnology
Move probability → Options chain →
$2.54 -0.03 (-1.17%)
● At close: October 21 at 4:00:00 PM EDT
DAY'S RANGE $2.54
$2.38 $2.56
52-WEEK RANGE $2.54
$1.70 $15.22

What's happening

Deterministic template sentences filled in from the same sourced figures shown elsewhere on this page -- not an AI-written summary, no live model call.

Key Statistics

Market Cap$25.1M
P/E (TTM1)—
EPS2 (TTM)$-4.34
Div Yield—
Beta31.38
Volume4,010
Open2.42
Prev Close2.57
Bid / Ask2.18 / 2.91
Next Earnings 2026-11-10

Analyst Recommendations

Strong buy 2 Buy 5 Hold 1 Sell 0 Strong sell 0

Aggregate ratings for 2026-10-01 (8 analysts polled by Finnhub) — consensus count.

Performance Overview (Trailing returns vs S&P 500 benchmark)

YTD RETURN
ATOS -71.30%
vs S&P 500 -84.08%
1-YEAR RETURN
ATOS -83.23%
vs S&P 500 -97.80%
6-MONTH RETURN
ATOS -55.98%
3-MONTH RETURN
ATOS +5.83%

Valuation Measures & Ratios

Enterprise Value4-$571.9K
Forward P/E5—
PEG Ratio6-0.02
Price / Sales (TTM1)159.51
Price / Book70.72
EV4 / Revenue-3.57
EV4 / EBITDA—
Profit Margin-7412.50%
Operating Margin-7412.50%
Return on Equity (ROE8)-102.99%
Return on Assets (ROA9)-85.78%
Avg Volume (3M)119,690
Quarterly history (5 periods)
Measure Jun '26Mar '26Sep '25Jun '25Mar '25
Market cap $17.4M $43.8M $1.08B $36.5M $29.0M
P/E -0.50 -1.31 -34.70 -1.29 -1.12
Price/Book 0.65 1.44 21.65 0.63 0.44
ROE -131.18% -109.63% -62.39% -49.26% -39.61%
ROA -109.03% -88.08% -53.55% -44.05% -36.57%

Trailing-twelve-month ratios computed from SEC EDGAR quarterly figures and historical daily close prices (Alpaca). Diluted shares are derived from Net income ÷ EPS (diluted) for each quarter, not separately reported. Forward P/E/PEG unavailable (no free data source).

Glossary — what these abbreviations mean
1. TTM
Trailing twelve months — the sum of the last four reported quarters, not a calendar year or the single latest quarter.
2. EPS
Earnings per share — net income divided by diluted shares outstanding.
3. Beta
A stock's historical volatility relative to the overall market. Above 1 means it has moved more than the market; below 1, less.
4. EV (Enterprise Value)
Market cap plus total debt minus cash — roughly what it would cost to buy the whole company, debt included.
5. Forward P/E
Price divided by analysts' estimated earnings for the next 12 months, instead of trailing actual earnings.
6. PEG Ratio
P/E divided by expected earnings growth rate. A lower number can indicate a stock is cheap relative to how fast it's expected to grow.
7. Price / Book
Share price divided by book value (assets minus liabilities) per share.
8. ROE
Return on equity — net income divided by shareholders' equity, a measure of how efficiently a company turns equity into profit.
9. ROA
Return on assets — net income divided by total assets, a measure of how efficiently a company turns assets into profit.
10. MRQ
Most recent quarter — the single latest reported period, as opposed to TTM. The Financials section's "Quarterly" view below shows MRQ-style figures.
11. YoY
Year over year — percent change versus the same period one year earlier, used for growth figures like those on Compare cards and the Screener.

Short Interest

Shares Short788,334
Change from Prior Settlement+3.43%
% of Float—
Days to Cover (Short Ratio)11.31

Source: FINRA Rule 4560 consolidated short interest, settlement date 2026-09-30. Reported bi-monthly with a reporting lag — not real-time.

Quotes and the 1-day extended-hours chart: Yahoo Finance. Longer historical charts: Alpaca (IEX feed) — real-time but IEX-only volume (~2.5% of consolidated market volume). Fundamentals + earnings: Finnhub.

Price history

Events

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Technical signal summary

Calculating from the latest year of daily price history…

Calculating…
Show Technical Analysis Breakdown ▾ 10 Indicators

Not investment advice — read several signals together.

Indicators None active

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Starter sets
Trend
Oscillators
Volume/volatility
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History limited by data provider; markers are heuristics, not signals.

Peer and sector context

No reviewed peer group is available for this symbol.

Balanced evidence

A deterministic summary of sourced facts—not an AI verdict.

Potential strengths

  • Latest SEC filing is Form 8-K, filed 2026-10-09; review it for current changes and risks. SEC EDGAR ↗

Potential concerns

Rule-based facts only; absence from either side is not evidence, and this is not a recommendation.

Financials

Income statement

Line item Jun '26Mar '26Sep '25Jun '25Mar '25Sep '24Jun '24Mar '24
Gross profit — — — — — — — —
Operating income -$8.7M -$9.9M -$9.3M -$9.0M -$7.4M -$6.4M -$7.1M -$7.0M
Net income -$8.5M -$9.6M -$8.7M -$8.4M -$6.7M -$7.2M -$6.0M -$5.9M
EPS (diluted) $-0.95 $-1.11 $-0.07 $-0.98 $-0.78 $-0.06 $-0.05 $-0.05
EPS (basic) $-0.95 $-1.11 $-0.07 $-0.98 $-0.78 $-0.06 $-0.05 $-0.05

Balance sheet

Line item Jun '26Mar '26Dec '25Sep '25Jun '25Mar '25Dec '24Sep '24
Total assets $32.3M $37.9M $47.6M $58.0M $64.5M $70.7M $76.4M $79.5M
Total liabilities $5.5M $7.5M $8.3M $8.2M $6.8M $5.4M $5.0M $5.8M
Stockholders' equity $26.8M $30.5M $39.4M $49.8M $57.7M $65.3M $71.5M $73.7M
Total current assets $31.0M $36.7M $45.6M $55.7M $62.5M $68.7M $74.5M $77.1M
Total current liabilities $5.5M $7.5M $8.3M $8.2M $6.8M $5.4M $5.0M $5.8M
Cash & equivalents $26.1M $31.7M $41.3M $51.8M $57.9M $65.1M $71.1M $74.8M

Cash flow

Line item Jun '26Mar '26Dec '25Sep '25Jun '25Mar '25Dec '24Sep '24
Operating cash flow -$9.6M -$9.6M -$10.5M -$6.0M -$7.3M -$6.0M -$7.1M -$4.8M
Investing cash flow $0 $0 -$7.0K -$7.0K $0 -$9.0K $0 -$10.0K
Financing cash flow $4.0M $0 $0 $0 $0 $0 $3.4M $0
Free cash flow -$9.6M -$9.6M -$10.5M -$6.0M -$7.3M -$6.0M -$7.1M -$4.8M
Capital expenditures $0 $0 $7.0K $7.0K $0 $9.0K $0 $10.0K
Depreciation & amortization — — — — — — — —

Source: SEC EDGAR XBRL filings (10-Q/10-K), as originally tagged by the company. Quarterly cash flow is reconstructed by de-cumulating fiscal-year-to-date figures (how cash flow is tagged in 10-Qs); other quarterly lines are reported directly.

Institutional holders

SEC Form 13F filers holding ATOS as of the latest reported quarter. 13F only covers investment managers with $100M+ in assets — this is not a complete ownership picture, and does not include insiders (see Recent SEC filings below) or non-13F-eligible holders.

Institutional ownership is not available for this symbol right now.

Insider activity

Directors, officers, and 10%+ owners' reported transactions from SEC Form 4. A filing reports a transaction; it does not by itself explain why it happened.

Source: SEC EDGAR Form 4 filings · checked 25 most recent filings · covers 2025-03-26 to 2026-05-12

Recent transactions

  • Most recent: Steinhart Richard I (Reporting person) — Grant / award of 10,000 shares on 2026-05-12.

Deterministic template sentences filled in from the SEC Form 4 figures in the tables below -- not an AI-written summary, no live model call.

Insider purchases & sales, last 6 months

Purchases (open market)0 sh(0 txns)
Sales (open market)0 sh(0 txns)
Net Shares+0

Counts only open-market purchases (code P) and sales (code S) — grants, option exercises, tax withholding, and gifts are excluded since they aren't a market buy/sell decision.

Insider roster

NameTitleMost Recent TransactionDateShares
Steinhart Richard IReporting personGrant / award2026-05-1210,000
Chen Shu-ChihReporting personGrant / award2026-05-1210,000
Remmel H. LawrenceReporting personGrant / award2026-05-1210,000
Finn JonathanReporting personGrant / award2026-05-1210,000
Galli Stephen JReporting personGrant / award2026-05-1210,000
Cigler TessaReporting personGrant / award2026-05-1210,000
QUAY STEVEN CPresident & CEOGrant / award2026-03-2765,000
Daniel Mark JamesChief Financial OfficerGrant / award2026-03-2663,000

Recent transactions

DateInsiderTitleTransactionSharesPrice
2026-05-12Steinhart Richard IReporting personGrant / award 10,000$0.00
2026-05-12Chen Shu-ChihReporting personGrant / award 10,000$0.00
2026-05-12Remmel H. LawrenceReporting personGrant / award 10,000$0.00
2026-05-12Finn JonathanReporting personGrant / award 10,000$0.00
2026-05-12Galli Stephen JReporting personGrant / award 10,000$0.00
2026-05-12Cigler TessaReporting personGrant / award 10,000$0.00
2026-03-27QUAY STEVEN CPresident & CEOGrant / award 65,000$0.00
2026-03-26Daniel Mark JamesChief Financial OfficerGrant / award 63,000$0.00
2026-01-20QUAY STEVEN CPresident & CEOGrant / award 325,203$0.00
2025-05-21QUAY STEVEN CPresident & CEOOpen market purchase 11,239$0.88
2025-03-26Remmel H. LawrenceReporting personOpen market purchase 10,000$0.70

Recent SEC filings

Official company reports and insider transaction filings. Form 4 reports a transaction; it does not by itself explain why it happened.

Source: SEC EDGAR submissions · updated 2026-10-21 23:46 UTC

FiledFormReport periodOfficial filing
2026-10-098-K2026-10-08 View on SEC.gov →
2026-09-298-K2026-09-29 View on SEC.gov →
2026-09-188-K2026-09-18 View on SEC.gov →
2026-08-078-K2026-08-07 View on SEC.gov →
2026-08-0710-Q2026-06-30 View on SEC.gov →
2026-06-118-K2026-06-10 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →
2026-05-1442026-05-12 View on SEC.gov →

Headlines about ATOS (Atossa Therapeutics, Inc.). Links open the publisher — we don’t host full articles.

SEC filings ↓

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