X0306 4 2015-04-20 0 0001610618 Cidara Therapeutics, Inc. CDTX 0001219014 ROCKLAGE SCOTT M 2200 SAND HILL ROAD SUITE 110 MENLO PARK CA 94025 1 0 1 0 0001478660 5AM Co-Investors III, L.P. 2200 SAND HILL ROAD SUITE 110 MENLO PARK CA 94025 0 0 1 0 0001456890 5AM VENTURES III, L.P. 2200 SAND HILL ROAD SUITE 110 MENLO PARK CA 94025 0 0 1 0 0001240357 DIEKMAN JOHN D 2200 SAND HILL ROAD SUITE 110 MENLO PARK CA 94025 0 0 1 0 0001598549 Schwab Andrew J. 2200 SAND HILL ROAD SUITE 110 MENLO PARK CA 94025 0 0 1 0 Common Stock 2015-04-20 4 C 0 1764195 A 1956099 I By Limited Partnership Common Stock 2015-04-20 4 C 0 45467 A 50412 I By Limited Partnership Convertible Preferred Stock 2015-04-20 4 C 0 1764195 0.00 D Common Stock 1764195 0 I By Limited Partnership Convertible Preferred Stock 2015-04-20 4 C 0 45467 0.00 D Common Stock 45467 0 I By Limited Partnership In connection with the Issuer's initial public offering, the preferred stock automatically converted into shares of the Issuer's common stock at the rate of 1 share of common stock for each 25.4 shares of preferred stock. The preferred stock had no expiration date. Shares are held by 5AM Ventures III, L.P. 5AM Partners III, LLC ("5AM Partners") is the general partner of 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P. and may be deemed to have solevoting and investment power over the shares beneficially owned by 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P. Dr. John Diekman, Andrew Schwab and Dr. Scott Rocklage, themanaging members of 5AM Partners, may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P.Each of 5AM Partners, Dr. Diekman, Mr. Schwab and Dr. Rocklage disclaim beneficial ownership of such shares except to the extent of its or his pecuniary interest therein. Shares are held by 5AM Co-Investors III, L.P. 5AM Partners is the general partner of 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P. and may be deemed to have sole voting andinvestment power over the shares beneficially owned by 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P. Dr. John Diekman, Andrew Schwab and Dr. Scott Rocklage, the managingmembers of 5AM Partners, may be deemed to have shared voting and investment power over the shares beneficially owned by 5AM Ventures III, L.P. and 5AM Co-Investors III, L.P. Each of5AM Partners, Dr. Diekman, Mr. Schwab and Dr. Rocklage disclaim beneficial ownership of such shares except to the extent of its or his pecuniary interest therein. /s/ Marc Wilson, Attorney-in-Fact 2015-04-22 Marc Wilson, Attorney-in-Fact 2015-04-22 Marc Wilson, Attorney-in-fact 2015-04-22 Marc Wilson, Attorney-in-fact 2015-04-22 Marc Wilson, Attorney-in-fact 2015-04-22