Company:  NORTHERN TRUST CORP (NTRS)
Form Type:  DEFA14A
Filing Date:  3/8/2012 
CIK:  0000073124 
Address:  50 S LASALLE ST 
City, State, Zip:  CHICAGO, Illinois 60603 
Telephone:  (312) 630-6000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$58.23  
Change: 
-0.04 (-0.07%)  
Trade Time: 
May 20  
Market Cap: 
$13.93B
Description of Business
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  FORM DEFA14A
    NOTICE & PROXY STATEMENT