<SUBMISSION>
<ACCESSION-NUMBER>0001111928-08-000030
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080317
<ITEMS>8.01
<FILING-DATE>20080317
<DATE-OF-FILING-DATE-CHANGE>20080317
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>IPG PHOTONICS CORP
<CIK>0001111928
<ASSIGNED-SIC>3674
<IRS-NUMBER>043444218
<STATE-OF-INCORPORATION>DE
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-33155
<FILM-NUMBER>08693525
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>50 OLD WEBSTER ROAD
<CITY>OXFORD
<STATE>MA
<ZIP>01540
<PHONE>5083731100
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>50 OLD WEBSTER ROAD
<CITY>OXFORD
<STATE>MA
<ZIP>01540
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>form8-k.htm
<DESCRIPTION>IPG PHOTONICS CORPORATION FORM 8-K 3-17-08
<TEXT>
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</font><font style="DISPLAY: inline; COLOR: #000000">3</font><font style="DISPLAY: inline; COLOR: #000000">,</font>&#160;<font style="DISPLAY: inline; COLOR: #000000">&#160;</font><font style="DISPLAY: inline; COLOR: #000000">2008</font></font></div>
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        the appropriate box below if the
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</font><font style="DISPLAY: inline; COLOR: #000000">Soliciting
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</font><font style="DISPLAY: inline; COLOR: #000000">Pre-commencement
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</font><font style="DISPLAY: inline; COLOR: #000000">Pre-commencement
        communications pursuant
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        CFR
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      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">&#160;</div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
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        <div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
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          </div>
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        <div id="HDR">
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          </div>
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      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Times New Roman">&#160;</font><font style="DISPLAY: inline; FONT-WEIGHT: bold">ITEM
        8.01 OTHER
        EVENTS</font></font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Certain
        directors and officers of IPG Photonics Corporation (the &#8220;Company&#8221;) adopted
        pre-arranged trading plans (each, a &#8220;Plan&#8221;) designed to comply with
        Rule&#160;10b5-1 under the Securities Exchange Act of 1934, as amended, and the
        Company&#8217;s policies regarding stock transactions. Under Rule&#160;10b5-1,
        directors, officers and other persons who are not in possession of material
        non-public information may adopt a plan or contract for pre-arranged sales
        of
        Company securities under specified conditions and at specified times. Using
        these Plans, insiders can gradually diversify their investment portfolios,
        spread stock trades out over an extended period of time to reduce market
        impact
        and avoid concerns about transactions occurring at a time when they might
        possess inside information.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        directors and officer who have adopted Plans have informed the Company that
        these stock sales are part of their individual programs for asset
        diversification.</font></div>
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      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Plan
        adopted by John H. Dalton, a member of the Company&#8217;s Board of Directors,
        provides for the sale of up to a total of 150,000 shares over a period of
        approximately six months beginning April 3, 2008, unless terminated sooner
        in
        certain circumstances. Shares will be sold under the Plan on the open market
        at
        prevailing market prices, subject to minimum price thresholds.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Plan
        adopted by Eugene Shcherbakov, a member of the Company&#8217;s Board of Directors, and
        the general manager of IPG Laser GmbH, provides for the sale of up to a total
        of
        150,000 shares over a period of approximately six months beginning April
        14,
        2008, unless terminated sooner in certain circumstances. Shares will be sold
        under the Plan on the open market at prevailing market prices, subject to
        minimum price thresholds.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Plan
        adopted by George BuAbbud, the Company&#8217;s Vice President-Telecommunications,
        provides for the sale of up to a total of 100,000 shares over a period of
        approximately eight months beginning April 7, 2008, unless terminated sooner
        in
        certain circumstances. Of these shares 100,000 shares will be acquired through
        the exercise of stock options.&#160;&#160;Shares will be sold under the Plan on
        the open market at prevailing market prices, subject to minimum price
        thresholds.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Plan
        adopted by Dennis Leonard, the Company&#8217;s Vice President of Operations, provides
        for the sale of up to a total of 43,667 shares over a period of approximately
        eight months beginning April 15, 2008, unless terminated sooner in certain
        circumstances.&#160;&#160;All of these shares will be acquired through the
        exercise of stock options.&#160;&#160;Shares will be sold under the Plan on the
        open market at prevailing market prices, subject to minimum price
        thresholds.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Plan
        adopted by Paolo Sinni, the Company&#8217;s Vice President, Treasurer and Controller,
        provides for the sale of up to a total of 30,000 shares over a period of
        approximately eight months beginning April 10, 2008, unless terminated sooner
        in
        certain circumstances.&#160;&#160;All of these shares will be acquired through
        the exercise of stock options.&#160;&#160;Shares will be sold under the Plan on
        the open market at prevailing market prices, subject to minimum price
        thresholds.</font></div>
      <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
        Company does not undertake to report Plans that may be adopted by any employees
        or directors of the Company in the future, or to report any modification
        or
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