Company:  ATMI INC (ATMI)
Form Type:  8-K
Filing Date:  4/9/2013 
CIK:  0001041577 
Address:  7 COMMERCE DRIVE 
City, State, Zip:  DANBURY, Connecticut 06810-4169 
Telephone:  (203) 794-1100 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$33.97  
Change: 
-0.01 (-0.03%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$1.13B
Description of Business
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  FORM 8-K
    SECTION 5 CORPORATE GOVERNANCE
      ITEM 5.02 Departure of Directors or Certain Officers; ...
    SECTION 9 FINANCIAL STATEMENTS AND EXHIBITS
      ITEM 9.01 Financial Statements and Exhibits.
    SIGNATURES
  EXHIBIT 99.1
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