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MUSTANG BIO, INC. — Investor Relations & Filings

Ticker · MBIO ISIN · US62818Q1040 LEI · 5493004W0VC1DPECQ779 US Manufacturing
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Filings indexed 399 across all filing types
Latest filing 2025-02-27 Regulatory Filings
Country US United States of America
Listing US MBIO

About MUSTANG BIO, INC.

https://www.mustangbio.com/

Mustang Bio, Inc. is a clinical-stage biopharmaceutical company focused on the development and commercialization of novel cell and gene therapies. The company's primary focus is on translating medical breakthroughs into potential cures for difficult-to-treat cancers and rare genetic diseases. Its pipeline is centered on Chimeric Antigen Receptor (CAR) T-cell therapies, a form of immunotherapy. Mustang Bio's strategy involves in-licensing promising technologies from academic institutions and advancing them through clinical trials, supported by its in-house manufacturing capabilities to ensure the production and delivery of these advanced treatments.

Recent filings

Filing Released Lang Actions
FORM 8-K
Regulatory Filings Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a Current Report used to announce major events that shareholders should know about. The content describes the completion of an acquisition or disposition of assets, specifically the sale of furniture, fixtures, and equipment to AbbVie, and related lease amendments. It also includes a press release about the closing and exhibits related to the transaction. There are no financial statements or detailed financial performance data included, and the document is not an annual or quarterly report. The Form 8-K is a regulatory filing used to disclose significant corporate events promptly. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length (6518 characters) and content confirm it is a full filing, not just a brief announcement or certification.
2025-02-27 English
PRE 14C
Proxy Solicitation & Information Statement Classification · 100% confidence The document is titled 'INFORMATION STATEMENT PURSUANT TO SECTION 14(C) OF THE SECURITIES EXCHANGE ACT OF 1934' and is identified as a Schedule 14C filing. It discusses stockholder action by written consent approving the issuance of shares underlying warrants, including details about the offering, voting power, and regulatory compliance. The document explicitly states it is an Information Statement and not a proxy solicitation. The content focuses on informing stockholders about corporate actions related to capital issuance and stockholder approval requirements under Nasdaq rules. This type of filing corresponds to a Proxy Solicitation & Information Statement (PSI), which is used to provide information to shareholders and request votes or consents for corporate actions. The document is lengthy (15,000 characters) and contains substantive information, not merely an announcement or certification, so it is not RPA or RNS. Therefore, the correct classification is PSI.
2025-02-21 English
FORM 8-K
Regulatory Filings Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a Current Report under the Securities Exchange Act of 1934. The content focuses on the submission of matters to a vote of security holders, specifically the written consent approving the issuance of shares related to warrants. It includes details about voting power, shareholder consents, and references to Nasdaq Listing Rule compliance. There is no detailed financial data or comprehensive report content such as financial statements or management discussion. The document is a regulatory announcement of a corporate action (share issuance approval via written consent) rather than a full financial report or earnings release. Therefore, the appropriate classification is Regulatory Filings (RNS), which is the fallback category for miscellaneous regulatory announcements and filings that do not fit other specific categories.
2025-02-21 English
Major Shareholding Notification 2025
Major Shareholding Notification
2025-02-14 English
424B3
Regulatory Filings Classification · 95% confidence The document is a Form 8-K Current Report filed with the SEC, dated February 7, 2025, describing the entry into a material definitive agreement including a Bill of Sale and Surrender Agreement, an Escrow Agreement, and a First Amendment to Lease Agreement. It details the sale of assets and lease termination arrangements. There are no financial statements or comprehensive financial data presented, nor is this an earnings release or annual/interim report. The document is a regulatory announcement about material agreements and lease termination, typical of a Current Report (Form 8-K). This fits the definition of Regulatory Filings (RNS), which covers general regulatory announcements and compliance documents that do not fit other categories. The document length is substantial and contains detailed information about agreements, not just a brief announcement or a report publication notice. Therefore, the appropriate classification is Regulatory Filings (RNS).
2025-02-13 English
FORM 8-K
Regulatory Filings Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a Current Report pursuant to the Securities Exchange Act of 1934. It details the entry into a material definitive agreement (a Bill of Sale and Surrender Agreement) and an amendment to a lease agreement, as well as the termination of a material definitive agreement. The content focuses on contractual and operational updates rather than financial results, management changes, or other report types. The document is not an earnings release, annual report, or interim report, nor is it a proxy statement or voting results announcement. It is a regulatory filing reporting a material event. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length and detail support a high confidence level.
2025-02-13 English

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