Company:  IPG PHOTONICS CORP (IPGP)
Form Type:  424B3
Filing Date:  2/27/2012 
CIK:  0001111928 
Address:  50 Old Webster Road 
City, State, Zip:  Oxford, Massachusetts 01540 
Telephone:  508-373-1100 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$69.31  
Change: 
-1.49 (-2.11%)  
Trade Time: 
04:00 PM EST  
Market Cap: 
$3.61B
Description of Business
IPG Photonics Corporation (�IPG�, the �Company�, the �Registrant�, �we�, �us� or �our�) is the leading developer and manufacturer of a broad line of high-performance fiber lasers, fiber amplifiers and diode lasers that are used for diverse applications, primarily in materials processing. Fiber lasers are a new generation of lasers that combine the advantages of semiconductor diodes, such as long life and high efficiency, with the high amplification and precise beam qualities of specialty optical fibers to deliver superior performance, reliability and usability. Our diverse lines of low, mid and high-power lasers and amplifiers are used in materials processing, advanced, communications and medical applications. We sell our products globally to original equipment manufacturers (�OEMs�), system integrators and end users. We market our products internationally primarily through our direct sales force.
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  FORM 424B3
    Subject to Completion
    TABLE OF CONTENTS
    About This Prospectus Supplement
    The Offering
    Summary Consolidated Financial Data
    RISK FACTORS
    FORWARD-LOOKING STATEMENTS
    USE OF PROCEEDS
    PRICE RANGE OF OUR COMMON STOCK
    DIVIDEND POLICY
    SELLING STOCKHOLDER
    UNDERWRITING
    VALIDITY OF COMMON STOCK
    EXPERTS
    WHERE YOU CAN FIND MORE INFORMATION
    RISK FACTORS
    USE OF PROCEEDS
    DESCRIPTION OF CAPITAL STOCK
    PLAN OF DISTRIBUTION
    LEGAL MATTERS