X0306 4 2018-01-30 0 0001693664 ARMO BioSciences, Inc. ARMO 0001728741 Xu Stella C/O QUAN CAPITAL UGLAND HOUSE, PO BOX 309 GRAND CAYMAN E9 KYI-1104 CAYMAN ISLANDS 1 0 0 0 Common Stock 2018-01-30 4 C 0 404900 A 404900 I By Quan Venture Fund I, L.P. Series C-1 Convertible Preferred Stock 2018-01-30 4 C 0 404900 0.00 D Common Stock 404900 0 I By Quan Venture Fund I, L.P. The total represents shares received upon conversion of shares of Series C-1 Convertible Preferred Stock. Each share of Series C-1 Convertible Preferred Stock automatically converted into one share of Issuer's Common Stock for no additional consideration immediately prior to the completion of the Issuer's initial public offering. The Convertible Preferred Stock had no expiration date. These Shares are held of record held by Quan Venture Fund I, L.P. (Quan Capital). The general partner of Quan Capital is Quan Venture Partners I, L.L.C. The Reporting Person is a manager of Quan Venture Partners I, L.L.C. and shares the ultimate power to vote or dispose of the shares held by Quan Capital. The Reporting Person disclaims beneficial ownership of the shares held by Quan Capital, except to the extent of her pecuniary interest. Each of Quan Capital and the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or her pecuniary interest therein, if any. This report on Form 4 shall not be deemed an admission that any of the reporting persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. /s/ Scott Paraker, Attorney-in-Fact 2018-01-30