Company:  IPG PHOTONICS CORP (IPGP)
Form Type:  4
Filing Date:  3/30/2012 
CIK:  0001111928 
Address:  50 Old Webster Road 
City, State, Zip:  Oxford, Massachusetts 01540 
Telephone:  508-373-1100 
Last Trade
Last Trade: 
$61.78  
Change: 
1.29 (2.13%)  
Trade Time: 
May 17  
Market Cap: 
$3.18B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES