X0306 4/A 2014-12-03 2014-12-05 0 0001311596 Regado Biosciences Inc RGDO 0001507220 Metzger Michael A C/O REGADO BIOSCIENCES INC. 106 ALLEN ROAD, 4TH FLOOR BASKING RIDGE NJ 07920 1 1 0 0 President & CEO Stock Option (right to buy) 0.84 2014-12-03 4 A 0 837531 0.00 A 2024-12-02 Common Stock 837531 837531 D This amendment is being filed solely to correct the exercise price of the stock option, which due to an administrative error was reported as $0.85 on the original Form 4. The correct exercise price is $0.84. The option is vested and exercisable as to 209,383 shares. The remaining 628,148 shares underlying the option will vest in 36 equal monthly installments on the ninth day of each calendar month, commencing on November 9, 2014. /s/ Michael A. Metzger 2015-02-20