Company:  AMCOL INTERNATIONAL CORP (ACO)
Form Type:  4
Filing Date:  2/14/2012 
CIK:  0000813621 
Address:  2870 FORBS AVENUE 
City, State, Zip:  HOFFMAN ESTATES, Illinois 60192 
Telephone:  (847) 851-1500 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$31.58  
Change: 
-0.72 (-2.23%)  
Trade Time: 
04:01 PM EST  
Market Cap: 
$1.02B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES