<SEC-DOCUMENT>0001111928-26-000096-index.html : 20260505
<SEC-HEADER>0001111928-26-000096.hdr.sgml : 20260505
<ACCEPTANCE-DATETIME>20260505084439
ACCESSION NUMBER:		0001111928-26-000096
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		12
FILED AS OF DATE:		20260505
DATE AS OF CHANGE:		20260505

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IPG PHOTONICS CORP
		CENTRAL INDEX KEY:			0001111928
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				043444218
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33155
		FILM NUMBER:		26940717

	BUSINESS ADDRESS:	
		STREET 1:		377 SIMARANO DRIVE
		CITY:			MARLBOROUGH
		STATE:			MA
		ZIP:			01752
		BUSINESS PHONE:		5083731100

	MAIL ADDRESS:	
		STREET 1:		377 SIMARANO DRIVE
		CITY:			MARLBOROUGH
		STATE:			MA
		ZIP:			01752
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>defa14a2026proxy-proxysupp.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: defa14a2026proxy-proxysupp.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>footer_logo.jpg
<TEXT>
Document 2 - file: footer_logo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ipgsupplementalproxyipgdra.jpg
<TEXT>
Document 3 - file: ipgsupplementalproxyipgdra.jpg

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

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>ipgsupplementalproxyipgdrab.jpg
<TEXT>
Document 5 - file: ipgsupplementalproxyipgdrab.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>ipgsupplementalproxyipgdrac.jpg
<TEXT>
Document 6 - file: ipgsupplementalproxyipgdrac.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>ipgsupplementalproxyipgdrad.jpg
<TEXT>
Document 7 - file: ipgsupplementalproxyipgdrad.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>ipgsupplementalproxyipgdrae.jpg
<TEXT>
Document 8 - file: ipgsupplementalproxyipgdrae.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>ipgsupplementalproxyipgdraf.jpg
<TEXT>
Document 9 - file: ipgsupplementalproxyipgdraf.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>ipgsupplementalproxyipgdrag.jpg
<TEXT>
Document 10 - file: ipgsupplementalproxyipgdrag.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>ipgsupplementalproxyipgdrah.jpg
<TEXT>
Document 11 - file: ipgsupplementalproxyipgdrah.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>ipgsupplementalproxyipgdrai.jpg
<TEXT>
Document 12 - file: ipgsupplementalproxyipgdrai.jpg

</DOCUMENT>
</SEC-DOCUMENT>