0001301637-07-000002 4 1 20070521 20070523 20070523 Wagler Theresa E 0001301637 4 34 000-21719 07872712 260-969-3567 6714 POINTE INVERNESS WAY, SUITE 200 FORT WAYNE IN 46804 STEEL DYNAMICS INC 0001022671 3312 351929476 IN 1231 6714 POINTE INVERNESS WAY SUITE 200 FORT WAYNE IN 46804 2604593553 6714 POINTE INVERNESS WAY SUITE 200 FORT WAYNE IN 46804 4 1 edgar.xml PRIMARY DOCUMENT