X0202 4 2006-03-13 0 0001093557 DEXCOM INC DXCM 0001238913 BLICKENSTAFF KIM D 5555 OBERLIN DRIVE SAN DIEGO CA 92121 1 0 0 0 Common Stock 2006-03-13 4 S 0 400 18.4 D 9600 D Common Stock 2006-03-13 4 S 0 100 18.45 D 9500 D Common Stock 2006-03-13 4 S 0 200 18.46 D 9300 D Common Stock 2006-03-13 4 S 0 300 18.47 D 9000 D Common Stock 2006-03-13 4 S 0 1500 18.5 D 7500 D Common Stock 2006-03-13 4 S 0 1000 18.51 D 6500 D Common Stock 2006-03-13 4 S 0 500 18.52 D 6000 D Common Stock 2006-03-13 4 S 0 500 18.55 D 5500 D Common Stock 2006-03-13 4 S 0 2631 18.6 D 2869 D Common Stock 2006-03-13 4 S 0 569 18.61 D 2300 D Common Stock 2006-03-13 4 S 0 100 18.62 D 2200 D Common Stock 2006-03-13 4 S 0 200 18.63 D 2000 D Common Stock 2006-03-13 4 S 0 100 18.64 D 1900 D Common Stock 2006-03-13 4 S 0 1200 18.65 D 700 D Common Stock 2006-03-13 4 S 0 700 18.66 D 0 D By: Jess Roper For: Kim D. Blickenstaff 2006-03-15