Aura Biosciences, Inc. (AURA)
CIK 1501796 · all EDGAR filings →
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
Latest: 103.7M shares as of Aug 6, 2026 (10-Q).⊙
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
| Tranche | Warrants | Exercise price | Term | Notes |
|---|---|---|---|---|
| Underwriters Exercise | 6.5M | not tagged | — | — |
| Pre Funded Warrants | 3.8M | $0.00001 | — | — |
| Series B Warrants | 12,686 | $17.03 | — | — |
Tranches exactly as the company dimensioned them in its 10-Q filed Aug 11, 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: 11.2M underlying shares, as reported Jun 30, 2026 (10-Q).
Rough fully diluted estimate: 114.9M = 103.7M O/S + 11.2M 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 11, 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 outstanding | 103.7M | Aug 6, 2026 |
| + Underwriters Exercise (if exercised) | 6.5M | May 5, 2026 |
| + Pre Funded Warrants (if exercised) | 3.8M | May 5, 2026 |
| + Series B Warrants (if exercised) | 12,686 | Jun 30, 2026 |
| Fully diluted estimate | 114.0M | +10.0% 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
Registered offering capacity on live registrations: $549.9Mfrom the structured fee exhibits; registered is not remaining, takedowns are not subtracted
Last 12 months: 2 executed · 2 registered.
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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