Serina Therapeutics, Inc. (SER)
CIK 1708599 · 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: 15.0M shares as of May 10, 2026 (10-Q). Share count fell from 38.0M to 2.5M between Nov 6, 2023 and Mar 14, 2024, 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
| Tranche | Warrants | Exercise price | Term | Notes |
|---|---|---|---|---|
| Pre Funded Warrants | 5.3M | $5 | 4y | — |
| Redeemable Warrants | 2.7M | not tagged | — | — |
| Contigent Warrants | 965,251 | $5.44 | 0.2y | — |
| Post Merger Warrants | 755,728 | $13.2 | — | FV $5.0M |
| Replacement Incentive Warrants | 755,728 | not tagged | — | — |
| Incentive Warrants | 377,930 | $18 | 4y | — |
| Age X Warrants | 21,507 | not tagged | — | — |
| Former Age X Warrants | not tagged | $23.25 | — | — |
Tranches exactly as the company dimensioned them in its 10-Q filed May 14, 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: 3.0M underlying shares, as reported Dec 31, 2025 (10-K).
Reported exercise price: $20.47 (aggregate figure as tagged; individual tranches vary).
Balance-sheet fair value of warrants: $3.5M as of Jun 30, 2025.
Rough fully diluted estimate: 18.0M = 15.0M O/S + 3.0M 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
| Note | Principal | Carrying | Conv. price | Rate | If converted |
|---|---|---|---|---|---|
| 2025 Convertible Note | $20.0M | $2.9M | $5.18 | 10% | ~3.9M sh |
If every note above converted at its tagged price: ~3.9M new shares on 15.0M currently outstanding. An estimate from principal ÷ conversion price, with inputs carrying different as-of dates; make-whole adjustments, capped calls and partial repurchases are not modeled.
Notes exactly as the company dimensioned them in its 10-Q filed May 14, 2026 →. Principal is face amount as tagged, not what remains after repurchases unless the filer updated the tag. A note the filer did not dimension is absent here, not absent from the balance sheet; the exhibits stay 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 | 15.0M | May 10, 2026 |
| + Pre Funded Warrants (if exercised) | 5.3M | Mar 17, 2026 |
| + Redeemable Warrants (if exercised) | 2.7M | Mar 17, 2026 |
| + Contigent Warrants (if exercised) | 965,251 | Sep 30, 2025 |
| + Post Merger Warrants (if exercised) | 755,728 | Nov 26, 2024 |
| + Replacement Incentive Warrants (if exercised) | 755,728 | Mar 31, 2026 |
| + Incentive Warrants (if exercised) | 377,930 | Mar 31, 2026 |
| + Age X Warrants (if exercised) | 21,507 | Mar 31, 2026 |
| + 2025 Convertible Note (if fully converted) | 3.9M | Sep 9, 2025 |
| Fully diluted estimate | 29.7M | +98.3% 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: $46.5Mfrom 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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