Mustang Bio, Inc.
MBIO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001680048
No open-market purchases or sales by Mustang Bio, Inc. insiders were filed in the last 90 days; 23 institutions reported holding it in 13F filings for Q2 2026, worth $378.3K in total; no superinvestor holds it.
Holders of 5% or more of MBIO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Mustang Bio, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Fortress Biotech, Inc. | 13D/A | 8.00%537.2K shares | +4.00 ppfrom 4.00% | Jan 13, 20236 filings | Jan 5, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
17 Schedule 13D and 13G filings on Mustang Bio, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jan 5, 20265:00 PM ET | Fortress Biotech, Inc. | 13D/A | 8.00%537.2K shares | +4.00 ppfrom 4.00% | Jan 2, 2026 | SEC |
| Oct 1, 20254:11 PM ET | Fortress Biotech, Inc. | 13D/A | 4.00%258.9K shares | −3.90 ppfrom 7.90%Below 5% | Sep 29, 2025 | SEC |
| Aug 12, 20255:10 PM ET | Intracoastal Capital, LLCand 2 others | 13G/A | 4.99%185.5K shares | −3.81 ppfrom 8.80%Below 5% | Jun 30, 2025 | SEC |
| May 15, 20253:37 PM ET | Armistice Capital, LLCand 1 other | 13G/A | 4.99%129.2K shares | −5.00 ppfrom 9.99%Below 5% | Mar 31, 2025 | SEC |
| May 9, 20254:03 PM ET | Intracoastal Capital, LLCand 2 others | 13G/A | 8.80%236.5K shares | −1.19 ppfrom 9.99% | Mar 31, 2025 | SEC |
| Apr 2, 20255:16 PM ET | Fortress Biotech, Inc. | 13D/A | 7.90%199.2K shares | −4.50 ppfrom 12.40% | Mar 31, 2025 | SEC |
| Feb 14, 20255:31 PM ET | Armistice Capital, LLCand 1 other | 13G | 9.99%5.11M shares | – | Dec 31, 2024 | SEC |
| Feb 11, 20254:51 PM ET | Intracoastal Capital, LLCand 2 others | 13G | 9.99%186.6K shares | New | Feb 5, 2025 | SEC |
| Jan 3, 20256:26 PM ET | Fortress Biotech, Inc. | 13D/A | 12.40%6.57M shares | – | Dec 31, 2024 | SEC |
| Nov 14, 2024 | Armistice Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Jun 28, 2024 | Fortress Biotech, Inc. | 13D/AOld format | – | – | – | SEC |
| Feb 14, 2024 | Armistice Capital, LLC | 13GOld format | – | New | – | SEC |
| Jan 13, 2023 | Fortress Biotech, Inc. | 13D/AOld format | – | – | – | SEC |
| Jul 8, 20224:57 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Feb 4, 20224:12 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Apr 9, 20216:02 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 2, 20213:08 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Mustang Bio, Inc. shares.
No Form 144 notices for Mustang Bio, Inc. are on file.