X0201 4/A 2004-03-04 2004-03-08 1 0000906709 NEKTAR THERAPEUTICS NKTR 0001236923 HARRIS J MILTON 150 INDUSTRIAL ROAD SAN CARLOS CA 94070 0 1 0 0 President of Nektar AL Common Stock 2004-03-04 4 S 0 350 22.05 D 711416 D Common Stock 2004-03-04 4 S 0 134 22.06 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.0728 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.09 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.1102 D 711416 D Common Stock 2004-03-04 4 S 0 400 22.16 D 711416 D Common Stock 2004-03-04 4 S 0 50 22.18 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.20 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.25 D 711416 D Common Stock 2004-03-04 4 S 0 750 22.26 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.28 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.29 D 711416 D Common Stock 2004-03-04 4 S 0 800 22.34 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.3585 D 711416 D Common Stock 2004-03-04 4 S 0 400 22.44 D 711416 D Common Stock 2004-03-04 4 S 0 350 22.50 D 711416 D Common Stock 2004-03-04 4 S 0 400 22.58 D 711416 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person /s/ Paula S. Kasler 2004-03-11