What is MBIO's dilution risk score?

MBIO has a latest available DilutionScore record of 60/100, categorized as high dilution risk by the DilutionWatch scoring model. DilutionWatch displays SEC filing and dilution indicators for MBIO, including shelf registrations, ATM offerings, warrant exercises, PIPE deals, and reverse split signals when detected in source data.

What SEC filings does DilutionWatch track for MBIO?

DilutionWatch tracks 25 SEC filing types for MBIO including S-3 shelf registrations, 424B prospectuses (ATM offerings), S-1 registration statements, 8-K material events, warrant exercise notices, convertible note agreements, and Form 4 insider transactions. Alerts are delivered via email within minutes of a filing appearing on EDGAR.

How does stock dilution affect MBIO shareholders?

Stock dilution occurs when a company issues new shares, reducing the ownership percentage of existing shareholders. For MBIO, common dilution events include at-the-market (ATM) stock offerings, shelf registration drawdowns, warrant exercises, and convertible note conversions. Each event increases the share count and can pressure the stock price lower.

Is DilutionWatch free for MBIO tracking?

DilutionWatch provides a free tier that shows DilutionScores and basic filing history for MBIO. Premium plans ($19.95/month Basic, $39.95/month Premium) unlock real-time email alerts, the full Pulse™ feed, advanced dilution forecasts, and access to all 10,000+ tracked tickers.

MBIO Dilution Risk Score: 60/100 (HIGH)

Score Breakdown

📋 Offering Ability

💰 Cash Runway

📊 Float Risk

⚠️ Warrant Exposure

🔄 Convertible Debt

Dilution Forecast

⛈️

Warning

High probability of dilution event

model est. 43%

🔄 Reverse Split model est. 65%

• 50-day avg $0.72 below $1 exchange minimum

• 7 months cash with weak price

📜 Warrant Exercise model 25%

• Significant warrants: 17% of shares outstanding

💰 Capital Raise model 15%

• Under 12 months cash (7mo)

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Market Data

Market Cap$10.30M

Shares Outstanding24.98M

Float5.35M

Cash$15.15M

DebtN/A

Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

Field	Current Value	Basis
DilutionScore	60/100	DilutionWatch score record
Shares Outstanding	24.98M	Verified float table or market cache
Public Float	5.35M	Verified float table or market cache
Market Cap	$10.30M	Market data cache
Cash Runway	7.1 months	DilutionWatch score inputs
Shelf Capacity	None in current score inputs	SEC-derived dilution fields
ATM Capacity	None in current score inputs	SEC-derived dilution fields
Outstanding Warrants	4.34M	SEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 2.

Recent SEC source mix: XBRL 2.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

QoQ: ↓ 3.2% shares (2026Q1 vs prior)

22 institutional holders · 534.2K shares

#1 Kestra Advisory Services, LLC 176.0K shares

#2 GEODE CAPITAL MANAGEMENT, LLC 92.8K shares

#3 BlackRock, Inc. 84.7K shares

+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest52.7K

Days to Cover1.7

% of Float1.0%

FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL WARRANT 2026-08-05

xbrl XBRL CONVERTIBLE 2024-03-11

Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual MBIO Dilution Snapshot

Mustang Bio, Inc. (MBIO) has a DilutionScore of 60/100, rated High dilution risk. Score date: October 13, 2026.

Stored outstanding warrants: 4.3M.
Recent SEC activity tracked for MBIO: xbrl on 2026-08-05; xbrl on 2024-03-11.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

MBIO's DilutionScore is currently 60/100 (High risk), with 4 score changes tracked over 89 days. The score improved from 52/100 (High risk).

Period	Score	Risk Level	Duration
Oct 01 – Oct 13, 2026	60/100	HIGH	13 days
Aug 31 – Sep 30, 2026	52/100	HIGH	31 days
Aug 22 – Aug 30, 2026	55/100	HIGH	9 days
Aug 14 – Aug 21, 2026	59/100	HIGH	7 days
Jul 16 – Aug 13, 2026	55/100	HIGH	29 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

MBIO shares outstanding have decreased 0.0% from 6.73M (Mar 2026) to 6.73M (Mar 2026). Each increase represents potential dilution to existing shareholders.

Date	Shares Outstanding	Public Float	Change
Mar 30, 2026	6.73M	5.35M	▲ 1.62%
Mar 28, 2026	6.73M	5.26M	▲ 348.12%
Mar 26, 2026	6.73M	1.17M	▼ 76.83%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

Track MBIO Dilution Risk in Real-Time

DilutionWatch monitors SEC filings 24/7 and alerts you the moment MBIO files a shelf registration, ATM offering, warrant notice, or convertible note. Free tier available — no credit card required.

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