X0202 4 2003-06-24 0 0000790708 IMPCO TECHNOLOGIES INC IMCO 0001247559 COSTAMAGNA MARIANO VIA LA MORRA, 1 CHERASCO ITALY L6 12062 ITALY 1 1 1 0 Chief Executive Officer Common Stock 2003-06-24 4 S 0 20000 4.23 D 1139735 D Common Stock 2003-06-25 4 S 0 14467 4.57 D 1125268 D Common Stock 2003-10-30 4 S 0 18200 8.50 D 1107068 D Common Stock 2003-10-31 4 S 0 1800 8.50 D 1105268 D Common Stock 2003-11-04 4 S 0 600 9.00 D 1104668 D Common Stock 2004-02-17 4 S 0 5000 7.64 D 1099668 D Common Stock 2004-06-10 4 S 0 20000 6.31 D 1079668 D Common Stock 2004-06-14 4 S 0 20000 6.32 D 1059668 D Common Stock 2004-12-13 4 S 0 44000 6.11 D 1015668 D Common Stock 2004-12-14 4 S 0 11396 6.11 D 1004272 D Common Stock 2004-12-15 4 S 0 6850 6.11 D 997422 D Common Stock 2004-12-16 4 S 0 21754 6.14 D 975668 D Common Stock 2005-03-31 4 A 0 2549142 5.38 A 3524810 D Includes shares held jointly with Bruna Giachino, Mr. Costamagna's spouse. /s/Mariano Costamagna 2005-05-04