X0306 4 2013-08-27 0 0001311596 Regado Biosciences Inc RGDO 0000901066 KIERLIN ROBERT A 2001 THEURER BOULEVARD WINONA MN 55987 0 0 1 0 Common Stock, par value $0.001 per share 2013-08-27 4 C 0 201785 A 224262 D Common Stock, par value $0.001 per share 2013-08-27 4 C 0 100050 A 324312 D Common Stock, par value $0.001 per share 2013-08-27 4 C 0 199050 A 523362 D Common Stock, par value $0.001 per share 2013-08-27 4 C 0 1392875 A 1916237 D Common Stock, par value $0.001 per share 2013-08-27 4 C 0 634718 A 2550955 D Common Stock, par value $0.001 per share 2013-08-27 4 P 0 750000 4.00 A 3300955 D Series A Preferred Stock 2013-08-27 4 C 0 3369811 0 D Common Stock, par value $0.001 per share 201785 0 D Series B Preferred Stock 2013-08-27 4 C 0 1670833 0 D Common Stock, par value $0.001 per share 100050 0 D Series C Preferred Stock 2013-08-27 4 C 0 3324136 0 D Common Stock, par value $0.001 per share 199050 0 D Series D Preferred Stock 2013-08-27 4 C 0 23261013 0 D Common Stock, par value $0.001 per share 1392875 0 D Series E Preferred Stock 2013-08-27 4 C 0 10750105 0 D Common Stock, par value $0.001 per share 634718 0 D The shares of Series A Preferred Stock had no expiration date and automatically converted upon the consummation of the initial public offering of Regado Biosciences, Inc. (the "Company") at a conversion ratio of 1 share of Series A Preferred Stock to 0.05988024 shares of common stock, for no additional consideration. The shares of Series B Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series B Preferred Stock to 0.05988024 shares of common stock, for no additional consideration. The shares of Series C Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series C Preferred Stock to 0.05988024 shares of common stock, for no additional consideration. The shares of Series D Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series D Preferred Stock to 0.05988024 shares of common stock, for no additional consideration. The shares of Series E Preferred Stock had no expiration date and automatically converted upon the consummation of the Company's initial public offering at a conversion ratio of 1 share of Series E Preferred Stock to 0.05988024 shares of common stock, for no additional consideration. /s/ Robert Kierlin by Christopher Courts, Attorney-in-Fact 2013-08-29