Form 3 Filing by Voss Capital and Affiliates for Rein Therapeutics, Inc.

This Form 3 filing reports the beneficial ownership of common stock in Rein Therapeutics, Inc. (RNTX) by Voss Capital, LP, Voss Value Master Fund, LP, Voss Value-Oriented Special Situations Fund, LP, Voss Advisors GP, LLC, and Travis W. Cocke. The filing indicates that these entities collectively own over 10% of the issuer's outstanding shares. Voss Value Master Fund, LP owns 699,440 shares, and Voss Value-Oriented Special Situations Fund, LP owns 316,768 shares. Each entity disclaims beneficial ownership of the securities except to the extent of their pecuniary interest. The filing is dated September 24, 2025.