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PULM
NASDAQ Life Sciences

Pulmatrix to Merge with Eos SENOLYTIX in Highly Dilutive Reverse Merger; Existing Shareholders to Own 6% of Combined Entity

Analysis by Wiseek AI
Sentiment info
Negative
Importance info
10
Price
$1.33
Mkt Cap
$4.967M
52W Low
$1.32
52W High
$9.37
52W Position info
0.8% above low
Off High info
86% below high
Rel. Volume info
3.4× avg
Market data snapshot near publication time

PULM is trading near its 52-week low of $1.32 (0.8% above the low) on elevated volume (3.4× avg).

Summary

Pulmatrix announced a definitive merger agreement to acquire Eos SENOLYTIX, effectively transforming Pulmatrix into Eos SENOLYTIX, Inc. Existing Pulmatrix shareholders will own approximately 6% of the combined company, while Eos stockholders will own 94%.


Key Events · M&A and Partnerships · PULM

  • Definitive Reverse Merger Agreement

    Pulmatrix, Inc. has entered into a definitive merger agreement to acquire Eos SENOLYTIX, Inc., a biotechnology company focused on developing gerotherapeutic peptides targeting mitochondrial dysfunction in aging-related diseases.

  • Significant Ownership Shift and Dilution

    Upon closing, pre-Merger Eos stockholders, including financing investors, are expected to own approximately 94% of the combined company, while existing Pulmatrix stockholders will own approximately 6% on a fully-diluted basis.

  • Concurrent Private Financings

    The merger is accompanied by definitive agreements for concurrent private financings totaling $19 million in aggregate gross proceeds. This includes a $1 million investment in Pulmatrix from RCM Eos PIPE HOLDINGS LLC via Series B Convertible Preferred Stock at a conversion price of $2.20 per share.

  • Corporate Rebranding and Leadership Change

    The combined company will operate as Eos SENOLYTIX, Inc. and is expected to trade on Nasdaq under the ticker symbol 'EOSX'. Kevin Slawin, M.D., Founder and CEO of Eos, will lead the merged entity as CEO. The board of directors is expected to consist of six members, with five designated by Eos.


Analysis · PULM · Life Sciences

This filing announces a definitive reverse merger agreement that will fundamentally transform Pulmatrix into Eos SENOLYTIX, Inc. The most critical aspect for existing Pulmatrix shareholders is the extreme dilution, as they are expected to own only approximately 6% of the combined company, while Eos stockholders will own 94%. This represents a near-complete change of control and business focus. The transaction, occurring while Pulmatrix's stock is trading near its 52-week low, suggests a distressed situation for the legacy business, necessitating this transformative, albeit highly dilutive, capital infusion and change of control. While the $1 million investment in Pulmatrix via Series B Convertible Preferred Stock is priced at a premium ($2.20 conversion price vs. current $1.33 stock price), this is a small component of the overall $19 million financing and does not offset the massive dilution for current shareholders. Investors should be aware of the complete strategic pivot and the substantial loss of ownership.

At the time of this filing, PULM was trading at $1.33 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $5M. The 52-week trading range was $1.32 to $9.37. This filing was assessed with negative market sentiment and an importance score of 10 out of 10.

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PULM - Latest Insights

PULM
Jun 05, 2026, 8:00 AM EDT
Filing Type: 425
Importance Score:
9
Price at Filing: $1.29
Real-time Price: $1.69 info
Change: +$0.400 (+31%) info
Market Cap: $6.172M info
PULM
Jun 04, 2026, 6:11 AM EDT
Filing Type: S-3
Importance Score:
7
Price at Filing: $1.29
Real-time Price: $1.69 info
Change: +$0.400 (+31%) info
Market Cap: $6.172M info
PULM
May 16, 2026, 3:14 AM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $1.25
Real-time Price: $1.69 info
Change: +$0.440 (+35%) info
Market Cap: $6.172M info
PULM
May 15, 2026, 8:20 AM EDT
Filing Type: 10-Q
Importance Score:
9
Price at Filing: $1.27
Real-time Price: $1.69 info
Change: +$0.420 (+33%) info
Market Cap: $6.172M info
PULM
May 15, 2026, 8:20 AM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $1.27
Real-time Price: $1.69 info
Change: +$0.420 (+33%) info
Market Cap: $6.172M info
PULM
May 15, 2026, 8:20 AM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $1.27
Real-time Price: $1.69 info
Change: +$0.420 (+33%) info
Market Cap: $6.172M info
PULM
Apr 22, 2026, 4:26 PM EDT
Source: Wiseek News
Importance Score:
9
Price at Filing: $1.42
Real-time Price: $1.69 info
Change: +$0.270 (+19%) info
Market Cap: $6.172M info
PULM
Apr 22, 2026, 4:24 PM EDT
Filing Type: SCHEDULE 13D
Importance Score:
8
Price at Filing: $1.42
Real-time Price: $1.69 info
Change: +$0.270 (+19%) info
Market Cap: $6.172M info
PULM
Apr 21, 2026, 8:00 AM EDT
Filing Type: 8-K
Importance Score:
7
Price at Filing: $1.44
Real-time Price: $1.69 info
Change: +$0.2513 (+17%) info
Market Cap: $6.172M info
PULM
Apr 21, 2026, 8:00 AM EDT
Source: Dow Jones Newswires
Importance Score:
7
Price at Filing: $1.44
Real-time Price: $1.69 info
Change: +$0.2513 (+17%) info
Market Cap: $6.172M info