MBIOMUSTANG BIO, INC.
Is Mustang Bio struggling financially?
Yes, by its own account. Mustang Bio told the SEC on 19 Mar 2026, in Form 10-K, that there is substantial doubt about its ability to continue as a going concern.
Going concern disclosed Mar 2026
30/100
Fragile
- Sector
- Biotech/Pharma
- Market cap
- $4.4M
- Source filing
- 10-K 19 Mar 2026
- Balance sheet
- 30 Jun 2026
Cash runway
-
18months
If the burn speeds up
Empty by Dec 2027
-
26months
If it eases off
Empty by Aug 2028
Both rows are the same reported burn flexed 15% either way, and neither assumes the company raises a cent.
Out of cashTwo years or more
The runway math
Cash and short-term investments
$15.2M
÷
Cash burned over the last 12 months
$8.2M
What Mustang Bio told the SEC
…financial statements for the year ended December 31, 2024 and in our most recent quarterly report on Form 10-Q for the period ended September 30, 2025 that substantial doubt existed regarding our ability to continue as a going concern. Although we have a history of negative cash flows from operations and operating losses, during the year ended December 31, 2025 we raised approximately $14.5 million in net proceeds…
MUSTANG BIO, INC., Form 10-K, filed 19 Mar 2026.
Read the filing on SEC.govWhat this means
- Not a bankruptcy filing, and not a prediction.
- It is the company’s own statement, agreed with its auditor, that the doubt is material enough to disclose.
- The runway is arithmetic on two reported numbers, not a forecast. Companies carry this language for years, raise money and keep going.
What else the numbers show
- 95.4% share-count increase The company issued stock. Each share now owns 48.8% less of the business than a year ago, before any change in the price.
- Cash burn is narrowing It is spending 47% less cash per year than it was, so the runway above is lengthening rather than shortening.
Other Biotech/Pharma companies that filed the doubt
- TNXP Tonix Pharmaceuticals Holding $215.2M
- OCGN Ocugen $471.4M
- ADIL Adial Pharmaceuticals $16.3M
- APRE Aprea Therapeutics $8.1M
- NXTS Nexentis Technologies $2.6M
- XFOR X4 Pharmaceuticals $400.6M