X0202 3 2005-03-31 0 0000790708 IMPCO TECHNOLOGIES INC IMCO 0001328985 Giachino Bruna VIA LA MORRA, 2 12062, CHERASCO, ITALY L6 ITALY 0 0 1 0 Common Stock 88628 D Common Stock 3453682 I Held by Husband These securities are owned solely by Bruna Giachino, who is a member of a "group" with Mariano Costamagna, among others, for purposes of Section 13(d) of the Exchange Act. These securities are owned by Mariano Costamagna, who is a member of a "group" with Bruna Giachino, among others, for purposes of Section 13(d) of the Exchange Act. Bruna Giachino has an indirect interest in these shares as the wife of Mariano Costamagna. /s/ Bruna Giachino 2005-06-02