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

SYNLOGIC, INC. (SYBX)

CIK 1527599 · all EDGAR filings →

Overall dilution risk
HIGHworst of 3 computed sub-ratings (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
HIGH$150M registered
= total registered offering amount from the fee exhibits of live registrations (bands: $1M / $20M)
registered capacity, not remaining: amounts already taken down are not subtracted yet
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+33% 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
LOW~36.3 months of runway
= cash vs trailing operating burn (bands: 6mo / 24mo; positive operating CF = low)

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

2021-08-052026-08-04

Latest: 12.2M shares as of Aug 4, 2026 (10-Q).

⊙
EVIDENCE — filed/published fact
SourceSEC XBRL, cover-page share count
Fielddei:EntityCommonStockSharesOutstanding
As of2026-08-04
HowThe newest cover-page count as filed. It is used as the current count only while it is no more than about 15 months older than the company’s newest periodic filing; the float checker applies a 200-day rule and sets it beside the balance-sheet count.
Open the source document →
Share count fell from 68.6M to 9.2M between Aug 3, 2023 and Nov 2, 2023, a pattern consistent with a reverse split (roughly 1-for-7); simultaneous issuance can skew the raw ratio, so confirm in the filings. The red bar marks the cliff.

Cash runway

Self-funding

generates cash

Full breakdown: cash runway tool · source filing →

Warrants

TrancheWarrantsExercise priceTermNotes
Pre Funded Warrants169,874$135——

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.

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 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 outstanding12.2MAug 4, 2026
+ Pre Funded Warrants (if exercised)169,874Jun 30, 2019
Fully diluted estimate12.4M+1.4% 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: $150.0Mfrom the structured fee exhibits; registered is not remaining, takedowns are not subtracted

S-3Aug 8, 2025$150.0M registeredfiling →

Last 12 months: 0 executed · 0 registered.

EFFECTIVEAug 20, 2025SEC declared a registration effective — selling can beginEFFECT →
REGISTEREDAug 15, 2025S-3/A registration — capacity to sell shares, not a sale yetS-3/A →
REGISTEREDAug 8, 2025S-3 registration — capacity to sell shares, not a sale yetS-3 →
EXECUTEDOct 2, 2023Final prospectus — offering priced (typical for IPOs and marketed share deals)424B4 →
REGISTEREDSep 28, 2023S-1/A registration — capacity to sell shares, not a sale yetS-1/A →
REGISTEREDSep 28, 2023S-1MEF registration — capacity to sell shares, not a sale yetS-1MEF →
EFFECTIVESep 28, 2023SEC declared a registration effective — selling can beginEFFECT →
REGISTEREDSep 27, 2023S-1/A registration — capacity to sell shares, not a sale yetS-1/A →
REGISTEREDSep 8, 2023S-1 registration — capacity to sell shares, not a sale yetS-1 →
EXECUTEDApr 4, 2023Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5 →
EXECUTEDSep 23, 2021Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5 →
EXECUTEDSep 22, 2021Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5 →

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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