X0306 4 2018-07-10 1 0001581720 Loxo Oncology, Inc. LOXO 0001444717 AISLING CAPITAL III LP 888 SEVENTH AVENUE, 12TH FLOOR NEW YORK NY 10106 0 0 1 0 0001532634 Aisling Capital Partners III LP AISLING CAPITAL LLC 888 SEVENTH AVENUE 12TH FLOOR NEW YORK NY 10106 0 0 1 0 0001532635 Aisling Capital Partners III LLC AISLING CAPITAL LLC 888 SEVENTH AVENUE 12TH FLOOR NEW YORK NY 10106 0 0 1 0 0001250195 ELMS STEVE 888 SEVENTH AVENUE 12TH FLOOR NEW YORK NY 10106 0 0 1 0 0001172252 SCHIFF ANDREW N 888 SEVENTH AVENUE, 12TH FLOOR NEW YORK NY 10106 0 0 1 0 0001297291 Purcell Dennis J 888 SEVENTH AVENUE, 12TH FLOOR NEW YORK NY 10106 0 0 1 0 Common Stock 2018-07-10 4 S 0 1400000 179.43 D 2038920 D The securities are directly held by Aisling Capital III, LP ("Aisling"), and indirectly held by Aisling Capital Partners III, LP ("Aisling GP"), as general partner of Aisling, Aisling Capital Partners III LLC ("Aisling Partners"), as general partner of Aisling GP, and each of the individual managing members and partners (collectively, the "Managers") of Aisling GP and Aisling Partners. The Managers of Aisling Partners are Dennis Purcell, Dr. Andrew Schiff and Steve Elms. Mr. Elms is a member of the Issuer's Board of Directors. Dr. Joshua Bilenker, the Issuer's President and Chief Executive Officer, is a member of the Issuer's Board of Directors and an Operating Partner of Aisling GP. Mr. Elms is a member of the investment committee (the "Investment Committee") of Aisling GP. The Investment Committee has voting and dispositive power over the shares held by Aisling. See Signatures on Exhibit 99.1 2018-07-12