Xtant Medical Holdings, Inc. (AMEX:XTNT) announced that it has entered into a material definitive agreement with OrbiMed Advisors, L.L.C. for a private placement of 945,819 common shares at a price of $7.20 per share for gross proceeds of $6,809,897 on January 11, 2018. The transaction will involve participation from returning investors, OrbiMed Royalty Opportunities II, LP and ROS Acquisition Offshore LP funds managed by OrbiMed Advisors, L.L.C.