VALLON PHARMACEU(VLON) - Prospectus(update)

As filed with the Securities and Exchange Commission on December 4, 2023. Registration No. 333-274972 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 PRE-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 ON FORM S-1 REGISTRATION STATEMENT (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 82-4369909 UNDER THE SECURITIES ACT OF 1933 GRI BIO, INC. (Exact name of registrant as specified in its charter) (I.R.S. Employ ...