Exhibit 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that the Statement on Schedule 13G dated May 14, 2025 with respect to the Common Stock, $0.001 par value, of Rein Therapeutics, Inc., a Delaware corporation, and any further amendments thereto executed by each and any of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.

Voss Value Master Fund, LP
 
By:

/s/ Travis W. Cocke

 
  Travis W. Cocke, Managing Member of Voss Advisors GP, LLC, its General Partner
Date: 05/14/2025

 

Voss Value-Oriented Special Situations Fund, LP
 
By:

/s/ Travis W. Cocke

 
  Travis W. Cocke, Managing Member of Voss Advisors GP, LLC, its General Partner
Date: 05/14/2025

 

Voss Advisors GP, LLC
 
By:

/s/ Travis W. Cocke

 
  Travis W. Cocke, Managing Member
Date: 05/14/2025

 

Voss Capital, LP
 
By:

/s/ Travis W. Cocke

 
  Travis W. Cocke, Managing Member
Date: 05/14/2025

 

Cocke Travis W.
 
By:

/s/ Travis W. Cocke

 
  Travis W. Cocke
Date: 05/14/2025