X0306 4 2018-01-30 1 0001693664 ARMO BioSciences, Inc. ARMO 0001728736 GV 2014 GP, L.L.C. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 0 0 1 0 0001728797 GV 2014, L.P. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 0 0 1 0 0001652044 Alphabet Inc. 1600 AMPHITHEATRE PARKWAY MOUNTAIN VIEW CA 94043 0 0 1 0 Common Stock 2018-01-30 4 C 0 607350 A 607350 I By GV 2014, L.P. Series C Convertible Preferred Stock 2018-01-30 4 C 0 607350 D Common Stock 607350 0 I By GV 2014, L.P. The total represents shares received upon conversion of shares of Series C Convertible Preferred Stock. The reported security is directly held by GV 2014, L.P. GV 2014 GP, L.L.C., the general partner of GV 2014, L.P., Alphabet Holdings LLC, the sole member of GV 2014 GP, L.L.C., XXVI Holdings Inc., the managing member of Alphabet Holdings LLC, and Alphabet Inc., the sole stockholder of XXVI Holdings Inc., may each be deemed to have sole power to vote or dispose of these shares. Each of GV 2014 GP, L.L.C., Alphabet Holdings LLC, XXVI Holdings Inc., and Alphabet Inc. disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein. The reported security converted into the Issuer's Common Stock on a 1-for-1 basis automatically immediately prior to the closing of the Issuer's initial public offering without payment of further consideration. The shares have no expiration date. /s/ Scott Paraker, Attorney-in-Fact 2018-01-30