X0306 4 2017-07-10 0001280784 Hercules Capital, Inc. HTGC 0001653448 Grace Melanie C/O HERCULES CAPITAL INC. 400 HAMILTON AVENUE SUITE 310 PALO ALTO CA 94301 false true false false General Counsel & CCO Common Stock 2017-07-10 4 F false 283 13.43 D 15247 D Represents shares of common stock withheld to pay taxes applicable to the vesting of restricted stock on July 10, 2017. /s/Melanie Grace 2017-07-11