Company:  STEEL DYNAMICS INC (STLD)
Form Type:  4
Filing Date:  6/5/2012 
CIK:  0001022671 
Address:  7575 W JEFFERSON BLVD 
City, State, Zip:  FORT WAYNE, Indiana 46804 
Telephone:  260 459 3553 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$15.51  
Change: 
-0.09 (-0.58%)  
Trade Time: 
May 23  
Market Cap: 
$3.42B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES