X0202 4 2006-08-21 0 0001119190 IWT TESORO CORP IWTT 0001166392 BOUCHER HENRY J JR 5 WICKS END LANE WILTON CT 06897 1 1 0 0 Chief Executive Officer Common stock 2006-08-21 2006-08-24 4 P 0 1000 1.95 A 775750 D Common stock 2006-08-21 2006-08-28 4 P 0 1000 1.85 A 776500 D Common stock 2006-08-24 2006-08-29 4 P 0 1000 1.85 A 777.500 D Common stock 2006-08-24 2006-08-29 4 P 0 1000 1.85 A 778500 D These shares were acquired for Mr. Boucher's self-directed 401(k) Plan. Represents 16,400 shares held in Mr. Boucher's self-directed 401(k) Plan, and 266,100 shares held as tenants by the entirety with his wife. Represents 17,400 shares held in Mr. Boucher's self-directed 401(k) Plan, and 266,100 shares held as tenants by the entirety with his wife. Represents 18,400 shares held in Mr. Boucher's self-directed 401(k) Plan, and 266,100 shares held as tenants by the entirety with his wife. Represents 19,400 shares held in Mr. Boucher's self-directed 401(k) Plan, and 266,100 shares held as tenants by the entirety with his wife. /s/ Henry J. Boucher, Jr. 2006-08-28