Microcap Ledger

Tickers · $PULM

Pulmatrix, Inc. $PULM

By Microcap Ledger desk · CIK 0001574235

Facts as of . Built from SEC filings and our own data. Small caps move fast; check the latest filings.

Snapshot

Exchange
Nasdaq Capital Market
Sector
Pharmaceutical Preparations
Headquarters
Framingham, MA
Fiscal year end
December 31
Shares outstanding
3,652,285 [10-Q 2026-08-13]
as of 2026-08-13

Sources: [10-K 2026-02-26]

What the company doesAI summary of filing

Pulmatrix, Inc. is a biopharmaceutical company developing inhaled therapeutic products using its proprietary iSPERSE dry powder delivery platform. The company's clinical-stage product candidates target migraine and respiratory diseases, including PUR3100 for acute migraine, PUR1800 for acute exacerbations of chronic obstructive pulmonary disease, and PUR1900 for allergic bronchopulmonary aspergillosis. The company is currently seeking opportunities to monetize its iSPERSE technology and clinical assets in connection with a proposed merger with Cullgen Inc., and has paused development of its product candidates pending completion of that transaction. [10-K 2026-02-26]

Segments: PUR3100 (acute migraine treatment), PUR1800 (AECOPD treatment), PUR1900 (ABPA treatment), iSPERSE technology platform

Financial health

From XBRL company facts (USD)
PeriodRevenueNet incomeOperating cash flowCashFiling
6 months to Jun 2026—−$2.21M −$2.17M$2.17M[S-4/A 2026-09-17]
FY ended Dec 2025—−$5.16M −$5.43M$4.09M[DEFM14A 2026-09-25]
FY ended Dec 2024$7.81M−$9.56M −$10.72M$9.52M[S-4/A 2026-09-17]
Quarterly cash burn
−$1.09M
Cash runway Estimate
~6 months

Estimate: cash at the end of the period (6 months to Jun 2026) divided by the average monthly operating cash outflow over that period. Ignores any cash raised or spent since, and any financing.

Capital structure and dilution

Summary only. How these instruments work: Dilution & financing desk.

Share count
DateShares outstandingFiling
2025-03-173,652,285[10-K 2025-03-21]
2025-05-123,652,285[10-Q 2025-05-15]
2025-07-313,652,285[10-Q 2025-08-06]
2025-10-133,652,285[10-Q 2025-10-16]
2026-02-233,652,285[10-K 2026-02-26]
2026-05-113,652,285[10-Q 2026-05-15]
2026-06-153,652,285[10-K/A 2026-06-16]
2026-08-133,652,285[10-Q 2026-08-13]
Shelf registration
S-3 filed 2026-06-04; no effectiveness notice found in EDGAR [S-3 2026-06-04]

Listing status

Current status: No Form 8-K Item 3.01 (listing notice) filings in the last 24 months, as of 2026-10-11.

More on deficiency notices and uplistings: Listing status desk.

Catalysts and calendar

Recent filings and releases
DateTypeTitle
2026-10-07424B3Prospectus or prospectus supplement
2026-10-05S-3/ARegistration statement
2026-09-25424B3Prospectus or prospectus supplement
2026-08-1310-QQuarterly report
2026-08-138-KResults of operations
2026-08-07S-3/ARegistration statement
2026-06-1610-K/AAmended report
2026-06-04S-3Registration statement
2026-05-1510-QQuarterly report
2026-05-158-KResults of operations
2026-04-2213DBeneficial ownership report (5%+ holder)
2026-04-218-KRegulation FD disclosure; Other events

Facts as of . Small caps move fast; check the latest filings.