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Nasdaq · CIK 0001680048

MBIO MUSTANG BIO, INC.

Insider trading from SEC Form 4. Last filing Jan 5, 2026. Close $0.40 on Oct 9, 2026, 0% from the 52-week low and -77% from the high.

MUSTANG BIO, INC. (MBIO) has 7 SEC Form 4 filings on file from 5 insiders, the latest filed on Jan 5, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

3 open-market trades have been scored at MBIO. The newest: Adam J. Chill (director) sold $4 of stock on Dec 30, 2025, filed Dec 30, 2025, scored 23 (weak). The largest of the 3 shown: Neil Herskowitz (director) sold $238 on Dec 30, 2025, scored 43 (moderate). 2 insiders sold within 14 days of each other around Dec 30, 2025.

MBIO closed at $0.40 on Oct 9, 2026, 0% above its 52-week low and 77% below its 52-week high.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
5
with a Form 4 at this company

Price and insider trades, last year

MBIOOct 9, 2026 · close 0.40

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at MUSTANG BIO, INC., scored.

ScoreInsiderValueHoldingsPrice contextFiled
23WeakAdam J. Chill
director
sell
$4
4 shares
-1%-
43ModerateNeil Herskowitz
director
sell
$238
247 shares
-63%-
25WeakDavid Jin
director
buy
$238
247 shares
+633%-

Transactions

Every row filed, 7 in all.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Jan 2, 2026Fortress Biotech, Inc.
owner
AGrant or award
COMMON STOCK, PAR VALUE $0.0001
+278,385$0.00$0536,577Jan 5, 2026
Dec 30, 2025Adam J. Chill
director
SOpen-market sale
COMMON STOCK, PAR VALUE $0.0001
-4$0.95$4375Dec 30, 2025
Dec 30, 2025Neil Herskowitz
director
SOpen-market sale
COMMON STOCK, PAR VALUE $0.0001
-247$0.96$238145Dec 30, 2025
Dec 30, 2025David Jin
director
POpen-market purchase
COMMON STOCK, PAR VALUE $0.0001
+247$0.96$238286Dec 30, 2025
Sep 29, 2025Fortress Biotech, Inc.
owner
AGrant or award
COMMON STOCK, PAR VALUE $0.0001
+59,334$0.00$0258,192Oct 1, 2025
Apr 24, 2025Manuel Litchman MD
President, CEO and Interim CFO
FTax withholding
COMMON STOCK
-27$1.24$331,634Apr 28, 2025
Mar 31, 2025Fortress Biotech, Inc.
owner
AGrant or award
COMMON STOCK, PAR VALUE $0.0001
+67,806$0.00$0198,858Apr 2, 2025

Insiders

Everyone who has filed a Form 4 here.

Questions about MBIO

Answered from the filings on this page, as of the latest one.

Are insiders buying MBIO?

No. In the last 90 days no insider at MUSTANG BIO, INC. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade MBIO on the open market?

Adam J. Chill (director) sold $4 of MBIO on Dec 30, 2025 and filed the Form 4 on Dec 30, 2025. InsiderTell scored 23 (weak), with 2 insiders on the same side within 14 days.

How many insiders file Form 4 at MUSTANG BIO, INC.?

5 people have filed a Form 4 at MUSTANG BIO, INC., among them Adam J. Chill (director), Fortress Biotech, Inc. (10% owner), Neil Herskowitz (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

MBIO insider trading: MUSTANG BIO, INC. | InsiderTell