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Pulmatrix, Inc. — Investor Relations & Filings

Ticker · PULM ISIN · US74584P3010 LEI · 5299002RHCRZ9ST3GN42 US Manufacturing
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Filings indexed 618 across all filing types
Latest filing 2026-06-05 M&A Activity
Country US United States of America
Listing US PULM

About Pulmatrix, Inc.

https://www.pulmatrix.com/

Pulmatrix, Inc. is a clinical-stage biopharmaceutical company that develops novel inhaled therapeutic products for respiratory and other diseases. The company's core is its proprietary iSPERSE™ technology, an engineered dry powder platform designed for efficient drug delivery directly to the lungs. This technology aims to improve therapeutic outcomes for patients with serious pulmonary conditions. The company's development pipeline has included candidates for diseases such as Chronic Obstructive Pulmonary Disease (COPD). In late 2024, Pulmatrix announced a proposed merger with Cullgen Inc., a company focused on targeted protein degradation, to form a combined entity with a diversified clinical pipeline.

Recent filings

Filing Released Lang Actions
425
M&A Activity
2026-06-05 English
S-3
Regulatory Filings Classification · 82% confidence The document is a Form S-3 registration statement and prospectus filed under the Securities Act of 1933, detailing the resale of shares by a selling stockholder. It is not an earnings release, management report, financing update announcement separate from the full prospectus, nor a board change or legal notice. There is no dedicated category for SEC registration statements or prospectuses in the taxonomy, so under the fallback “Regulatory Filings” (RNS) it is classified as such.
2026-06-04 English
10-Q
Interim / Quarterly Report Q1 2026
2026-05-15 English
8-K
Regulatory Filings Classification · 85% confidence The document is a Form 8-K current report filed under the Securities Exchange Act. It does not contain substantive financial data itself, but merely furnishes a press release (Exhibit 99.1) announcing the company’s first-quarter results. This is a regulatory filing without the full earnings data, making it a general SEC regulatory announcement rather than the report itself or a detailed earnings release.
2026-05-15 English
8-K - Pulmatrix, Inc. (0001574235) (Filer)
Capital/Financing Update Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a Current Report used to announce major events that shareholders should know about. The text specifically mentions the closing of a Private Placement of Series B Preferred Stock, which is a financing event. The document includes a press release about the closing of the Private Placement and references Regulation FD Disclosure. There are no detailed financial statements or comprehensive financial analysis present, only an announcement of a financing event. Therefore, this filing is best classified as a Capital/Financing Update (CAP). The document length is 4745 characters, which is consistent with a typical 8-K filing announcing a financing event rather than a full report or earnings release.
2026-04-21 English
8-K - PULMATRIX, INC. (0001574235) (Filer)
Regulatory Filings Classification · 100% confidence The document is a Form 8-K filed with the SEC, which is a Current Report used to announce major events that shareholders should know about. The content specifically discusses the termination of a material definitive agreement related to a merger agreement between Pulmatrix, Inc. and Cullgen Inc. It also includes a Regulation FD disclosure and a press release about the termination. There are no financial statements or detailed financial data presented, nor is this an annual or quarterly report. The document is an announcement of a significant corporate event (termination of merger agreement) rather than a full report or detailed financial disclosure. Therefore, the appropriate classification is Regulatory Filings (RNS), which is the fallback category for miscellaneous regulatory announcements and filings that do not fit other specific categories.
2026-03-02 English

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