Is PULM diluting shareholders?

Read three numbers together: shares outstanding over time (3.7M as of 2026-06-15), warrants that can convert into new shares (65,003 reported), and how much cash runway remains (~7.341800110436223 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

Pulmatrix, Inc. (PULM)

CIK 1574235 · all EDGAR filings →

Overall dilution risk

MEDIUMworst of 4 computed signals (cash need)

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

Offering ability

LOW$0.7M registered

= total registered offering amount from the fee exhibits of live registrations (bands: $1M / $20M)

one or more live registrations had no structured fee data, so the true total is AT LEAST this

Overhead supply

LOWwarrants = 2% 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

LOW0% 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~7.3 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: 3.7M shares as of Jun 15, 2026 (10-K/A). Share count fell from 56.2M to 3.3M between Nov 9, 2021 and Mar 25, 2022, a pattern consistent with a reverse split (roughly 1-for-17); 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

Warrants outstanding: 65,003 underlying shares, as reported Mar 31, 2026 (10-Q).

Reported exercise price: $39.03 (aggregate figure as tagged; individual tranches vary).

Balance-sheet fair value of warrants: $0 as of Jun 30, 2025.

Rough fully diluted estimate: 3.7M = 3.7M O/S + 65,003 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 May 15, 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	3.7M	Jun 15, 2026
+ Warrants (aggregate, as tagged) (if exercised)	65,003	Mar 31, 2026
Fully diluted estimate	3.7M	+1.8% 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: $0.7Mfrom the structured fee exhibits; registered is not remaining, takedowns are not subtracted

S-3Jun 4, 2026$0.7M registeredfiling →

S-3May 17, 2024no structured fee exhibit in this filing (predates fee-data XBRL or fee deferred)filing →

Last 12 months: 1 executed · 2 registered.

REGISTEREDAug 7, 2026S-3/A registration — capacity to sell shares, not a sale yetS-3/A →

REGISTEREDJun 4, 2026S-3 registration — capacity to sell shares, not a sale yetS-3 →

EXECUTEDMar 27, 2026Unregistered share sale disclosed (8-K item 3.02)8-K →

UPDATEMay 9, 2025Prospectus update — often a resale registration, not necessarily new capital424B3 →

EFFECTIVEMay 9, 2025SEC declared a registration effective — selling can beginEFFECT →

EFFECTIVEMay 30, 2024SEC declared a registration effective — selling can beginEFFECT →

REGISTEREDMay 17, 2024S-3 registration — capacity to sell shares, not a sale yetS-3 →

UPDATEMar 28, 2024Prospectus update — often a resale registration, not necessarily new capital424B3 →

UPDATEAug 9, 2022Prospectus update — often a resale registration, not necessarily new capital424B3 →

EXECUTEDDec 17, 2021Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)424B5 →

EXECUTEDDec 15, 2021Unregistered share sale disclosed (8-K item 3.02)8-K →

EFFECTIVEJun 9, 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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