8/4/05 Trinity Industries Inc. 10-Q 6/30/05 6:968K RR Donnelley 7/1/05 Wallace Timothy R 4 Dir.,Off.² 2:8K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Natalicio Diana S 4 Director² 2:7K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Grum Clifford J 4 Director² 2:7K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Galt Barry J 4 Director² 2:7K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Gafford Ronald J 4 Director² 1:5K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Duchossois Craig 4 Dir.,%Own.² 2:7K Trinity Industries Inc. Trinity Industries Inc. 7/1/05 Biegler David W 4 Director² 2:7K Trinity Industries Inc. Trinity Industries Inc. 6/30/05 Gafford Ronald J 4 Director² 2:7K Trinity Industries Inc. Trinity Industries Inc.