UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 20, 2016

	MUSTANG BIO, INC.
	(Exact Name of Registrant as Specified in Charter)

Delaware

000-55668

47-3828760

(State or Other Jurisdiction

of Incorporation)

(Commission
File Number)

(IRS Employer

Identification No.)

2 Gansevoort Street, 9th Floor, New York, New York		10014
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (781) 652-4500

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 4.01.

Changes in Registrant’s Certifying Accountant.

(b)

New independent registered public accounting firm.

Effective October 20, 2016, Mustang Bio, Inc. (the “Company”) engaged BDO USA, LLP (“BDO”) as its new independent registered public accounting firm. The Company’s Audit Committee participated in and approved this decision.

During the Company’s fiscal period from March 13, 2015 (inception) to December 31, 2015, and through October 20, 2016, the Company did not consult with BDO regarding any matters described in Items 304(a)(2)(i) or 304(a)(2)(ii) of Regulation S-K.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized.

	MUSTANG BIO, INC.

Date: October 25, 2016	/s/ Michael S. Weiss
		Name:	Michael S. Weiss
		Title:	President and Chief Executive Officer