SecBot SecBot
425 ·Filed Oct 22, 2026

PULM

Pulmatrix, Inc.
NEUTRAL
Impact 4/10
Horizondays Processed6d 7h ago SEC0001493152-26-047966
Rule 425 M&A communications
Actionable Insight • Neutral

The merger vote is the next key catalyst on October 26. Monitor for any last-minute opposition or changes in shareholder sentiment. The preclinical data is supportive but early-stage; focus on the deal timeline rather than the science for near-term trading.

DirectionNeutral
Confidencemedium
Horizondays
Latest settled: T+1d ⚠ clustered
PULM ▲ +4.23% at T+1d
NEUTRAL call +4.23% · α vs SPY +4.75% · entry $1.42 → $1.48
Next anchor: T+5d in 18h
Entry = T+0 close
Oct 22, 2026
via day close
T+1d
+4.23%
call +4.23% · α +4.75%
$1.48
settled 5d ago
T+5d
Pending
in 18h
T+20d
Pending
in 22d
T+60d
Pending
in 3mo

Price Chart

Loading chart...

Executive Summary

Eos SENOLYTIX presented positive preclinical survival and healthspan data for PTC-2105 at a conference, and launched a public engagement campaign. This 425 filing is a routine M&A communication updating the status of the proposed merger with Pulmatrix, which is on track for a shareholder vote on October 26, 2026, with closing expected shortly after. The data is preclinical and promotional, with no changes to deal terms or financials.

Key Financial Metrics

Deal Type
merger

Key Facts

  • PTC-2105 (25 mg/kg) showed statistically significant overall survival increase vs saline in aged mice (log-rank p=0.0142).
  • Special meeting of Pulmatrix stockholders to vote on the merger is scheduled for October 26, 2026.
  • Merger is anticipated to close shortly after the special meeting, subject to customary conditions.
  • Combined company's common stock expected to trade on Nasdaq under ticker 'MTXL'.
  • Eos is planning first-in-human studies followed by a Phase 1b trial in sarcopenia patients aged 60+.
  • A 180-mouse study is underway to confirm a potentially concerning lifespan signal in semaglutide-treated mice.

Financial Impact

No financial figures reported; preclinical data only.

Risk Factors

  • Stockholder approval of the merger is not guaranteed.
  • Preclinical results may not translate to human clinical outcomes.
  • Merger-associated financings are expected but not yet secured.
  • Nasdaq listing of combined company is subject to satisfaction of conditions.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
86% bullish (7 analysts)

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
425 Filing (Primary)0001493152-26-047966
Document: 0001493152-26-047966-index-headers.html0001493152-26-047966
Document: 0001493152-26-047966-index.html0001493152-26-047966
Document: 0001493152-26-047966.txt0001493152-26-047966
19 reports for PULM
Performance horizon
71% Hit rate @ T+5 5 of 7 directional calls Went positive at some point 6 of 8 best @ T+20▲ +11.15%Aug 7, 2026
Filters
Rows
Reports for PULM, sortable and filterable
TypeNow
Oct 23, 2026
5d ago
EFFECT
BEARISH ★ 5/10
$1.48awaiting T+5awaiting T+5$1.43 (+3.36%)
Oct 22, 2026
6d ago
425
NEUTRAL ★ 4/10
$1.42awaiting T+5awaiting T+5$1.43 (+0.72%)
Oct 13, 2026
15d ago
425
NEUTRAL ★ 4/10
$1.38 $1.43▲ +3.62%▲ +4.77%$1.43 (+3.64%)
Oct 7, 2026
20d ago
DEFA14A
NEUTRAL ★ 2/10
$1.53 $1.41▼ −7.67%▼ −7.39%$1.43 (−6.35%)
Oct 2, 2026
25d ago
S-3/A
BEARISH ★ 5/10
$1.48 $1.43▲ +3.38%▲ +3.80%$1.43 (+3.36%)
Sep 28, 2026
4w ago
EFFECT
BEARISH ★ 5/10
$1.59 $1.48▲ +6.92%▲ +8.12%$1.43 (+10.05%)
Sep 25, 2026
4w ago
DEFM14A
BEARISH ★ 6/10
$1.59 $1.48▲ +6.92%▲ +8.12%$1.43 (+10.05%)
Sep 23, 2026
4w ago
S-4/A
NEUTRAL ★ 2/10
$1.67 $1.54▼ −7.78%▼ −7.37%$1.43 (−14.36%)
Sep 22, 2026
5w ago
425
NEUTRAL ★ 3/10
$1.69 $1.52▼ −9.79%▼ −9.12%$1.43 (−15.12%)
Sep 17, 2026
5w ago
S-4/A
NEUTRAL ★ 5/10
$1.44 $1.61▲ +11.81%▲ +10.54%$1.43 (−0.68%)
Showing 10 of 19

US Market Status

Market Open · Closes in 1h 57m

Subscribe to SecBot

Get Real-Time SEC Filing Intelligence

Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.

Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers
Report published Oct 22, 2026