X0306 4 2016-09-15 0 0000906709 NEKTAR THERAPEUTICS NKTR 0000936728 WHITFIELD ROY A C/O NEKTAR THERAPEUTICS 455 MISSION BAY BOULEVARD SOUTH SAN FRANCISCO CA 94158 1 0 0 0 Common Stock 2016-09-15 4 M 0 15000 0.00 A 30000 D Common Stock 20000 I by Family Trust Restricted Stock Unit 2016-09-15 4 M 0 15000 0.00 D Common Stock 15000 0 D Represents restricted stock units ("RSU"), convertible on a one-for-one basis into shares of Common Stock of the Company. These RSUs, at the time of their grant on September 15, 2015, vested in full one year following the grant date. The total holdings includes the 15,000 shares of restricted stock units ("RSUs") that were previously reported in Table II for the reporting person and which are being reclassified to Table I. These RSUs were granted on September 15, 2015, are convertible on a one-for-one basis into shares of Common Stock of the Company, and vested on September 15, 2016. Gilbert M. Labrucherie, Jr., Attorney-in-Fact 2016-09-19