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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): July 20, 2026

 

TONIX PHARMACEUTICALS HOLDING CORP.

(Exact name of registrant as specified in its charter)

 

Nevada   001-36019   26-1434750

(State or Other Jurisdiction

of Incorporation)

 

(Commission

File Number)

 

(IRS Employer

Identification No.)

 

200 Connell Drive, Suite 3100, Berkeley Heights, New Jersey 07922

(Address of principal executive offices) (Zip Code)

 

Registrant’s telephone number, including area code: (862) 799-8599

 

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 (see General Instruction A.2. below):

 

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))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common Stock   TNXP   The NASDAQ Global Select Market

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

 

 

 

 

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

 

On July 20, 2026, Dr. Gregory M. Sullivan informed Tonix Pharmaceuticals Holding Corp. (the “Company”) that he will retire from his role as Chief Medical Officer of the Company, effective August 20, 2026.

 

 

 

 

SIGNATURE

 

Pursuant to the requirement 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.

 

  TONIX PHARMACEUTICALS HOLDING CORP.
   
Date: July 21, 2026 By: /s/ Bradley Saenger
    Bradley Saenger
    Chief Financial Officer

 

 

 


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