Is CYCN diluting shareholders?

Read three numbers together: shares outstanding over time (4.7M as of 2026-08-04), warrants that can convert into new shares, and how much cash runway remains (~5.036813518406759 months). A company short on cash with live registrations is structurally likely to issue shares.

Where do these numbers come from?

SEC EDGAR only: the XBRL company-facts API for shares, warrants and cash, and filing metadata for registrations and pricings. Every figure shows its source form, and nothing here is estimated by us beyond the arithmetic stated next to it.

Why might a warrant tranche be missing from the table?

The tranche table is built from the dimensions the company tagged in its own 10-Q or 10-K XBRL. A tranche the filer chose not to dimension does not appear, and its absence proves nothing: the exhibits remain the ground truth. Everything shown carries the filing it came from.

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

Cyclerion Therapeutics, Inc. (CYCN)

CIK 1755237 · all EDGAR filings →

Overall dilution risk

HIGHworst of 3 computed signals (offering ability)

= the worst band among the computed sub-ratings, no hidden weighting

not every sub-rating was computable; treat as a floor

Offering ability

HIGHS-3 on file 2025-05-06

= 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

NOT COMPUTEDno warrant count tagged in XBRL

= warrant shares outstanding divided by current shares outstanding

absence of a tag is not proof of absence of warrants

Historical dilution

MEDIUM+91% 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

HIGH~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

Latest: 4.7M shares as of Aug 4, 2026 (10-Q). Share count fell from 43.5M to 2.4M between May 1, 2023 and Jul 24, 2023, a pattern consistent with a reverse split (roughly 1-for-18); 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

No warrant figures tagged in this filer’s XBRL facts. That means the company has not reported them in structured form; it does not prove no warrants exist. The exhibits are the ground truth.

Convertible notes

No convertible-note facts tagged in the 10-Q filed Aug 4, 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.

Registrations and offerings

S-3May 6, 2025no structured fee exhibit in this filing (predates fee-data XBRL or fee deferred)filing →

S-3Feb 4, 2025no structured fee exhibit in this filing (predates fee-data XBRL or fee deferred)filing →

Last 12 months: 0 executed · 0 registered.

UPDATEJul 24, 2026Prospectus update — often a resale registration, not necessarily new capital424B3 →

EFFECTIVEJul 24, 2026SEC declared a registration effective — selling can beginEFFECT →

EFFECTIVEMay 15, 2025SEC declared a registration effective — selling can beginEFFECT →

EXECUTEDMay 7, 2025Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5 →

REGISTEREDMay 6, 2025S-3 registration — capacity to sell shares, not a sale yetS-3 →

EXECUTEDMar 25, 2025Unregistered share sale disclosed (8-K item 3.02)8-K →

EFFECTIVEFeb 12, 2025SEC declared a registration effective — selling can beginEFFECT →

REGISTEREDFeb 4, 2025S-3 registration — capacity to sell shares, not a sale yetS-3 →

EXECUTEDMay 25, 2023Unregistered share sale disclosed (8-K item 3.02)8-K →

EXECUTEDMay 12, 2023Unregistered share sale disclosed (8-K item 3.02)8-K →

EXECUTEDJun 24, 2021Final prospectus — offering priced (typical for IPOs and marketed share deals)424B4 →

REGISTEREDJun 23, 2021S-3/A registration — capacity to sell shares, not a sale yetS-3/A →

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.

Keep going: float checker · offering calendar · short-squeeze screener · full CYCN workspace