Delisting risk
MBIO · NASDAQ · Biotechnology

Mustang Bio (MBIO)

Develops a combined oncolytic-virus and CAR T treatment for recurrent brain tumors.

$0.5473
At close−0.00 (−0.15%)

Breakdown13F · 13D/G · Form 4

Institutions0 holders · as of Jun 30, 2026 · largest filers only≥ 1.50%113.7K shares
Insiders4 holders · as of Apr 27, 20260.03%2.4K shares
Strategic holders1 holder · as of Jan 5, 20267.09%537.2K shares
Otherremainder≤ 91.38%6.92M shares

7.58M company shares as of Sep 3, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

This company has 2 share classes; every stake here is a share of the whole company.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Fortress Biotech, Inc.Strategic10 percent owner
7.09%537,24313Dfiled Jan 5, 2026
Geode Capital Management, LLCInstitution
0.56%42,24013Fas of Jun 30, 2026
Vanguard Fiduciary Trust CoInstitution
0.42%32,12013Fas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
0.34%25,70413Fas of Jun 30, 2026
Susquehanna International Group, LLPInstitution
0.18%13,66413Fas of Jun 30, 2026
Manuel MD LitchmanInsiderdirector, officer: President, CEO and Interim CFO
0.02%1,615Form 4filed Apr 27, 2026
Adam J. ChillInsiderdirector
0.00%375Form 4filed Dec 30, 2025
David JinInsiderdirector
0.00%286Form 4filed Dec 30, 2025
Neil HerskowitzInsiderdirector
0.00%145Form 4filed Dec 30, 2025
Lindsay A. Md Rosenwald1Insiderdirector
0.02%1,211Form 4filed Jul 7, 2023
Michael S. Weiss1Insiderdirector
0.01%993Form 4filed Jul 7, 2023
Michael J. Zelefsky1Insiderdirector
0.01%379Form 4filed Jul 7, 2023
Brian Achenbach2Insiderofficer: SVP, Fin. & Corp. Controller
0.00%193Form 4filed Dec 16, 2021
Peter Carney3Insiderofficer: See Remarks
0.00%80Form 4filed Dec 19, 2023
David J. Horin4Insiderofficer: Interim CFO
0.00%0Form 4filed Jun 30, 2017
Eliot M. Lurier5Insiderofficer: Interim CFO
0.00%0Form 4filed Jun 7, 2022
  1. Last filed Jul 7, 2023; leaving the company requires no filing. Not in the bar.
  2. Last filed Dec 16, 2021; leaving the company requires no filing. Not in the bar.
  3. Last filed Dec 19, 2023; leaving the company requires no filing. Not in the bar.
  4. Last filed Jun 30, 2017; leaving the company requires no filing. Not in the bar.
  5. Last filed Jun 7, 2022; leaving the company requires no filing. Not in the bar.

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Jun 30, 2026

113.7K shares

HolderShares% of companyChg q/qFiled
Geode Capital Management, LLC42.2K0.56%−50.6KAug 12, 2026
Vanguard Fiduciary Trust Co32.1K0.42%0Aug 13, 2026
Vanguard Capital Management LLC25.7K0.34%0Aug 13, 2026
Susquehanna International Group, LLP13.7K0.18%+13.7KnewAug 14, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Fortress Biotech, Inc.12.40%13DJan 3, 2025

Insider tradesForm 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Dec 30, 2025
David Jindirector
Purchase247$0.9620286
Dec 30, 2025
Adam J. Chilldirector
Sale4$0.9548375
Dec 30, 2025
Neil Herskowitzdirector
Sale247$0.9620145

CongressHouse and Senate disclosures

Not reported.