How Much Did Pulmatrix Raise?
Funding & Key Investors

Pulmatrix, a clinical-stage biopharmaceutical company focused on developing innovative inhaled therapies, has secured significant enterprise-level funding, with a recent major strategic investment. The total capital raised to date stands at $157.3M, reflecting substantial investor confidence in the company's proprietary iSPERSE technology for treating serious pulmonary and non-pulmonary diseases. The most recent financing round, dated April 15, 2026, signifies a pivotal moment for the company's growth trajectory.

What is Pulmatrix?

Pulmatrix
ManufacturingPharmaceuticalsBusiness Services

Pulmatrix is at the forefront of developing novel inhaled therapies designed to combat severe lung conditions such as allergic bronchopulmonary aspergillosis (ABPA) and Chronic Obstructive Pulmonary Disease (COPD), as well as neurological disorders like acute migraine. The company's core innovation lies in its patented iSPERSE technology, an engineered dry powder delivery platform. This platform aims to optimize therapeutic delivery directly to the lungs, enhancing local drug concentrations while minimizing systemic side effects, thereby improving patient outcomes. The company's strategic capital infusions underscore its commitment to advancing its product pipeline through rigorous clinical development.

How much funding has Pulmatrix raised?

Pulmatrix has raised a total of $157.3M across 15 funding rounds:

2013

Debt

$20.5M

2015

Share Placement

$10M

2017

Stock Offering

$9.7M

2018

Stock Offering

$15.9M

Stock Offering

$3M

2019

Multiple Rounds

$20.3M

2020

Stock Offering

$8M

2026

Private Equity

$1M

Debt (2013): $20.5M with participation from Undisclosed

Share Placement (2015): $10M led by 5AM Ventures, ARCH Ventures, Altitude Life Science Ventures, and Polaris Partners

Stock Issuance/Offering (2017): $9.7M supported by Undisclosed

Stock Issuance/Offering (2018): $15.9M featuring Undisclosed

Stock Issuance/Offering (2018): $3M backed by Undisclosed

Stock Issuance/Offering (2019): $1.2M with participation from Undisclosed

Stock Issuance/Offering (2019): $2.5M led by Undisclosed

Stock Issuance/Offering (2019): $16.6M supported by Undisclosed

Stock Issuance/Offering (2020): $8M featuring Undisclosed

Private Equity (2026): $1M, investors not publicly disclosed

Key Investors in Pulmatrix

5AM Ventures

Five AM Ventures is a life science focused venture capital firm that backs early stage biotech and health care innovators, partnering closely with founders to shape companies, fund rigorous science and help bring new therapies and technologies to patients.

Polaris Partners

Polaris Partners is a venture capital firm that specializes in backing transformational companies in the biotech and healthcare sectors. With over two decades of experience, they partner with entrepreneurs to create successful business solutions, providing coaching, advice, and resources for growth. Their team consists of board members, entrepreneurs, scientists, and operators who engage deeply to foster innovation and collaboration. Polaris aims to support the development of modern solutions in various industries, exemplifying a commitment to nurturing relationships and enhancing the entrepreneurial journey.

ARCH Ventures

ARCH Venture Partners is a leading earlystage venture capital firm that creates and invests in life sciences and advanced technology companies, often cofounding startups with scientists and entrepreneurs to commercialize innovations from universities, corporate R&D groups, and national laboratories.

What's next for Pulmatrix?

The substantial enterprise-level funding and recent strategic investment position Pulmatrix for accelerated development and potential commercialization of its innovative inhaled therapies. This capital infusion is expected to fuel further research and development efforts, expand clinical trial activities, and potentially scale manufacturing capabilities. The company's focus on addressing significant unmet medical needs in respiratory and neurological diseases, coupled with its advanced iSPERSE delivery technology, suggests a strong potential for future growth and market penetration. Pulmatrix's strategic financing rounds indicate a clear path toward advancing its pipeline and achieving key developmental milestones.

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Frequently Asked Questions Regarding Pulmatrix Financial Insights

What are the most recent funding rounds that Pulmatrix has completed, and what were the funding rounds?
Pulmatrix has recently completed 3 funding rounds: Private Equity on Apr 15, 2026, Stock Offering on Apr 20, 2020, Stock Offering on Apr 8, 2019.
What is the total amount of funding Pulmatrix has raised to date?
Pulmatrix has raised a total of $157.3M in funding to date.
How many funding rounds has Pulmatrix completed?
Pulmatrix has completed 3 funding rounds.
How much funding did Pulmatrix raise in its most recent funding round?
Pulmatrix raised $1M in its most recent funding round.
Which was the largest funding round in Pulmatrix's history?
The largest funding round in Pulmatrix's history was $29.4M.
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