<SEC-DOCUMENT>0001111928-18-000124-index.html : 20181030
<SEC-HEADER>0001111928-18-000124.hdr.sgml : 20181030
<ACCEPTANCE-DATETIME>20181030080023
ACCESSION NUMBER:		0001111928-18-000124
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20181030
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20181030
DATE AS OF CHANGE:		20181030

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IPG PHOTONICS CORP
		CENTRAL INDEX KEY:			0001111928
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				043444218
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33155
		FILM NUMBER:		181145548

	BUSINESS ADDRESS:	
		STREET 1:		50 OLD WEBSTER ROAD
		CITY:			OXFORD
		STATE:			MA
		ZIP:			01540
		BUSINESS PHONE:		5083731100

	MAIL ADDRESS:	
		STREET 1:		50 OLD WEBSTER ROAD
		CITY:			OXFORD
		STATE:			MA
		ZIP:			01540
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>ipgp-20180930x8kpressr.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: ipgp-20180930x8kpressr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3.2
<SEQUENCE>2
<FILENAME>exhibit32-amendedresta.htm
<DESCRIPTION>EXHIBIT 3.2
<TEXT>
Document 2 - file: exhibit32-amendedresta.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>exhibit991-20180930.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 3 - file: exhibit991-20180930.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: image1.jpg

</DOCUMENT>
</SEC-DOCUMENT>