Dilution profile // every instrument, one screen, from SEC filings

ATOSSA THERAPEUTICS, INC. (ATOS)

CIK 1488039 · all EDGAR filings →

Overall dilution risk
HIGHworst of 4 computed signals (offering ability)
= the worst band among the computed sub-ratings, no hidden weighting
Offering ability
HIGHS-3 on file 2024-05-13
= is there a registration (S-1/S-3 family) on file without a later withdrawal
no structured fee data on the live registrations, so this is a yes/no, not a size
Overhead supply
LOWwarrants = 0% of O/S
= warrant shares outstanding divided by current shares outstanding (bands: 20% / 50%)
warrants only; converts, ATMs and equity lines are not in free structured data, so the true overhead is AT LEAST this
Historical dilution
LOW-92% O/S in 3y
= share count now vs 3 years ago (bands: 30% / 100%); a reverse split pushes this negative
a reverse-split-sized cliff is in this window; read the chart
Cash need
MEDIUM~10.5 months of runway
= cash vs trailing operating burn (bands: 6mo / 24mo; positive operating CF = low)
the company itself flagged going-concern doubt

Same rating bands the category standard uses, but free, with the formula on the chip and the gaps in the data said out loud.

Shares outstanding over time

2020-11-092026-07-31

Latest: 10.0M shares as of Jul 31, 2026 (10-Q). Share count fell from 129.2M to 8.6M between Nov 1, 2025 and Mar 17, 2026, a pattern consistent with a reverse split (roughly 1-for-15); simultaneous issuance can skew the raw ratio, so confirm in the filings. The red bar marks the cliff.

Cash runway

Going-concern warning

auditor flagged substantial doubt

The company itself flagged going-concern doubt in a filing.

Full breakdown: cash runway tool · source filing →

Warrants

TrancheWarrantsExercise priceTermNotes
Series Warrantsnot tagged$4.4
June Two Zero Two Six Series A Warrantsnot tagged$1363637
June Two Zero Two Six Series B Warrantsnot tagged$1363637
June Two Zero Two Six Placement Agent Warrantsnot tagged$40909

Tranches exactly as the company dimensioned them in its 10-Q filed Aug 7, 2026. Groupings can overlap (a “Series E and F” row is not additive with a “Series E” row), so do not sum this column. A tranche the filer did not tag is absent here, not absent from the cap table. DOWN-ROUND = the filer tagged price-protection accounting scoped to that tranche.

Warrants outstanding: 0 underlying shares, as reported Dec 31, 2025 (10-K).

Reported exercise price: $2768183 (aggregate figure as tagged; individual tranches vary).

Rough fully diluted estimate: 10.0M = 10.0M O/S + 0 warrant shares. An estimate, not a filing figure: it ignores converts, options and RSUs, and the two inputs carry different as-of dates.

Convertible notes

No convertible-note facts tagged in the 10-Q filed Aug 7, 2026. If convertible notes exist, their terms live in exhibit prose for this filer and are not parsed; absence of a tag is not proof of absence. The exhibits are the ground truth.

Fully diluted build-up

Shares outstanding plus every potential-share instrument the filer tagged in XBRL, each at its own as-of date. An estimate assembled from filed figures, not a filing figure itself.

Shares outstanding10.0MJul 31, 2026
+ Warrants (aggregate, as tagged) (if exercised)0Dec 31, 2025
Fully diluted estimate10.0M+0.0% vs O/S

Still excluded, because the filer does not tag them in countable form: employee options and RSUs, any instrument living only in exhibit prose, and instruments above missing a share count. Inputs carry different as-of dates, shown per row. Each figure traces to the tranche and note tables above and their cited filings.

Registrations and offerings

S-3May 13, 2024no structured fee exhibit in this filing (predates fee-data XBRL or fee deferred)filing →

Last 12 months: 2 executed · 0 registered.

EXECUTEDJun 12, 2026Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5
UPDATEFeb 20, 2026Prospectus update — often a resale registration, not necessarily new capital424B3
EXECUTEDFeb 20, 2026Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5
EXECUTEDNov 19, 2024Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5
EFFECTIVEMay 23, 2024SEC declared a registration effective — selling can beginEFFECT
REGISTEREDMay 13, 2024S-3 registration — capacity to sell shares, not a sale yetS-3
EFFECTIVEApr 29, 2021SEC declared a registration effective — selling can beginEFFECT
REGISTEREDApr 21, 2021S-3 registration — capacity to sell shares, not a sale yetS-3
EXECUTEDMar 23, 2021Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5
REGISTEREDMar 22, 2021S-3MEF registration — capacity to sell shares, not a sale yetS-3MEF
EXECUTEDFeb 4, 2021Prospectus supplement priced — shares or notes (large filers: often a bond deal)424B2
EFFECTIVEJan 29, 2021SEC declared a registration effective — selling can beginEFFECT

Full history and shelf status: offering checker · S-3 shelf checker

Source: SEC EDGAR XBRL company facts and filing metadata, fetched live and cached briefly. Share counts are cover-page figures with their form named. Warrant tranches and convertible notes come from the dimensioned facts in the latest 10-Q/10-K instance document, exactly as the company tagged them; untagged tranches and notes are absent, not disproven. Nothing on this page is manually verified and nothing is behind a login: what free data supports is shown, what it cannot support is stated. Not investment advice.

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