X0202 4 2004-09-13 0 0001099414 TANOX INC TNOX 0001111265 CHANG TSE WEN 81 CHANG HSING STREET TAIPEI F5 ROC TAIWAN, PROVINCE OF CHINA 1 0 1 0 Common Stock 2004-09-13 4 S 0 1000 17.60 D 6318303 D Common Stock 2004-09-13 4 S 0 1000 17.65 D 6317303 D Common Stock 2004-09-13 4 S 0 1000 17.70 D 6316303 D Common Stock 2004-09-13 4 S 0 1000 17.76 D 6315303 D Common Stock 2004-09-14 4 S 0 100 17.82 D 6315203 D Common Stock 2004-09-14 4 S 0 400 17.81 D 6314803 D Common Stock 2004-09-14 4 S 0 500 17.84 D 6314303 D Common Stock 2004-09-14 4 S 0 2000 17.75 D 6312303 D Common Stock 2004-09-14 4 S 0 3000 17.77 D 6309303 D Common Stock 2004-09-14 4 S 0 1000 17.80 D 6308303 D Common Stock 2004-09-14 4 S 0 1000 17.85 D 6307303 D Tse Wen Chang, by Katie-Pat Bowman, as Attorney-in-Fact 2004-09-24