SEC EDGAR Submission 0001111928-20-000061

<SEC-DOCUMENT>0001111928-20-000061-index.html : 20200407
<SEC-HEADER>0001111928-20-000061.hdr.sgml : 20200407
<ACCEPTANCE-DATETIME>20200407171012
ACCESSION NUMBER:		0001111928-20-000061
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		99
CONFORMED PERIOD OF REPORT:	20200528
FILED AS OF DATE:		20200407
DATE AS OF CHANGE:		20200407
EFFECTIVENESS DATE:		20200407

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33155
		FILM NUMBER:		20780382

	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>DEF 14A
<SEQUENCE>1
<FILENAME>ipgphotonicsproxy2020.htm
<DESCRIPTION>DEFINITIVE PROXY STATEMENT
<TEXT>
Document 1 - file: ipgphotonicsproxy2020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>2
<FILENAME>ipgpcourtesycopyproxy.pdf
<DESCRIPTION>COURTESY PDF OF PROXY
<TEXT>
Document 2 - file: ipgpcourtesycopyproxy.pdf

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

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<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>bio_execleadershipicon.jpg
<TEXT>
Document 4 - file: bio_execleadershipicon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>bio_financialliticon.jpg
<TEXT>
Document 5 - file: bio_financialliticon.jpg

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

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<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>bio_lasersandtechicon.jpg
<TEXT>
Document 7 - file: bio_lasersandtechicon.jpg

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<SEQUENCE>8
<FILENAME>bio_mfgoperatingicon.jpg
<TEXT>
Document 8 - file: bio_mfgoperatingicon.jpg

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<FILENAME>bio_otherpubliccoboardsicon.jpg
<TEXT>
Document 9 - file: bio_otherpubliccoboardsicon.jpg

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<SEQUENCE>10
<FILENAME>bio_riskmgtcon.jpg
<TEXT>
Document 10 - file: bio_riskmgtcon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>biophoto_child.jpg
<TEXT>
Document 11 - file: biophoto_child.jpg

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

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<SEQUENCE>13
<FILENAME>biophoto_gapontsev.jpg
<TEXT>
Document 13 - file: biophoto_gapontsev.jpg

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<SEQUENCE>14
<FILENAME>biophoto_lego.jpg
<TEXT>
Document 14 - file: biophoto_lego.jpg

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<SEQUENCE>15
<FILENAME>biophoto_meurice.jpg
<TEXT>
Document 15 - file: biophoto_meurice.jpg

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<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>biophoto_peeler.jpg
<TEXT>
Document 16 - file: biophoto_peeler.jpg

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<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>biophoto_samartsev.jpg
<TEXT>
Document 17 - file: biophoto_samartsev.jpg

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<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>biophoto_scherbakov.jpg
<TEXT>
Document 18 - file: biophoto_scherbakov.jpg

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<SEQUENCE>19
<FILENAME>biophoto_seifert.jpg
<TEXT>
Document 19 - file: biophoto_seifert.jpg

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<SEQUENCE>20
<FILENAME>footer_logo.jpg
<TEXT>
Document 20 - file: footer_logo.jpg

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<SEQUENCE>21
<FILENAME>frontcover.jpg
<TEXT>
Document 21 - file: frontcover.jpg

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<SEQUENCE>22
<FILENAME>letterlogoa01.jpg
<TEXT>
Document 22 - file: letterlogoa01.jpg

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<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>ltrphoto_gapontsev.jpg
<TEXT>
Document 23 - file: ltrphoto_gapontsev.jpg

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<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>ltrquote1.jpg
<TEXT>
Document 24 - file: ltrquote1.jpg

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<SEQUENCE>25
<FILENAME>ltrquote2.jpg
<TEXT>
Document 25 - file: ltrquote2.jpg

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<SEQUENCE>26
<FILENAME>p1_calendaricon.jpg
<TEXT>
Document 26 - file: p1_calendaricon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>27
<FILENAME>p1_cellphoneicon.jpg
<TEXT>
Document 27 - file: p1_cellphoneicon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>28
<FILENAME>p1_computericon.jpg
<TEXT>
Document 28 - file: p1_computericon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>29
<FILENAME>p1_locationicon.jpg
<TEXT>
Document 29 - file: p1_locationicon.jpg

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<TYPE>GRAPHIC
<SEQUENCE>30
<FILENAME>p1_loprestisig.jpg
<TEXT>
Document 30 - file: p1_loprestisig.jpg

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<TYPE>GRAPHIC
<SEQUENCE>31
<FILENAME>p1_mailicon.jpg
<TEXT>
Document 31 - file: p1_mailicon.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>32
<FILENAME>p1_personicon.jpg
<TEXT>
Document 32 - file: p1_personicon.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>33
<FILENAME>p2_netsalesbar.jpg
<TEXT>
Document 33 - file: p2_netsalesbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>34
<FILENAME>p2_opsincomebar.jpg
<TEXT>
Document 34 - file: p2_opsincomebar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>35
<FILENAME>p4_agepie.jpg
<TEXT>
Document 35 - file: p4_agepie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>36
<FILENAME>p4_balancedtenurepie.jpg
<TEXT>
Document 36 - file: p4_balancedtenurepie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>37
<FILENAME>p4_businessdevbar.jpg
<TEXT>
Document 37 - file: p4_businessdevbar.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>38
<FILENAME>p4_businessdevmaicon.jpg
<TEXT>
Document 38 - file: p4_businessdevmaicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>39
<FILENAME>p4_directorindiepie.jpg
<TEXT>
Document 39 - file: p4_directorindiepie.jpg

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<TYPE>GRAPHIC
<SEQUENCE>40
<FILENAME>p4_diversitypie.jpg
<TEXT>
Document 40 - file: p4_diversitypie.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>41
<FILENAME>p4_execleadershipbar.jpg
<TEXT>
Document 41 - file: p4_execleadershipbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>42
<FILENAME>p4_execleadershipcon.jpg
<TEXT>
Document 42 - file: p4_execleadershipcon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>43
<FILENAME>p4_financialliteracyicon.jpg
<TEXT>
Document 43 - file: p4_financialliteracyicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>44
<FILENAME>p4_finliteracybar.jpg
<TEXT>
Document 44 - file: p4_finliteracybar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>45
<FILENAME>p4_globalbusinessbar.jpg
<TEXT>
Document 45 - file: p4_globalbusinessbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>46
<FILENAME>p4_globalbusinessicon.jpg
<TEXT>
Document 46 - file: p4_globalbusinessicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>47
<FILENAME>p4_lasersandtechicon.jpg
<TEXT>
Document 47 - file: p4_lasersandtechicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>48
<FILENAME>p4_laserstechbar.jpg
<TEXT>
Document 48 - file: p4_laserstechbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>49
<FILENAME>p4_mfgbar.jpg
<TEXT>
Document 49 - file: p4_mfgbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>50
<FILENAME>p4_mfgoperatingicon.jpg
<TEXT>
Document 50 - file: p4_mfgoperatingicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>51
<FILENAME>p4_otherpubliccoboardbar.jpg
<TEXT>
Document 51 - file: p4_otherpubliccoboardbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>52
<FILENAME>p4_otherpubliccoboardbara01.jpg
<TEXT>
Document 52 - file: p4_otherpubliccoboardbara01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>53
<FILENAME>p4_otherpubliccoboardcon.jpg
<TEXT>
Document 53 - file: p4_otherpubliccoboardcon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>54
<FILENAME>p4_riskmgtbar.jpg
<TEXT>
Document 54 - file: p4_riskmgtbar.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>55
<FILENAME>p4_riskmgtcon.jpg
<TEXT>
Document 55 - file: p4_riskmgtcon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>56
<FILENAME>p6-38_ceoacipie.jpg
<TEXT>
Document 56 - file: p6-38_ceoacipie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>57
<FILENAME>p6-38_ceobasesalarypie.jpg
<TEXT>
Document 57 - file: p6-38_ceobasesalarypie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>58
<FILENAME>p6-38_neoacipie.jpg
<TEXT>
Document 58 - file: p6-38_neoacipie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>59
<FILENAME>p6-38_neobasesalarypie.jpg
<TEXT>
Document 59 - file: p6-38_neobasesalarypie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>60
<FILENAME>p6-38_neoltipie1.jpg
<TEXT>
Document 60 - file: p6-38_neoltipie1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>61
<FILENAME>p6-38_neoltipie2.jpg
<TEXT>
Document 61 - file: p6-38_neoltipie2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>62
<FILENAME>p7_piesayonpay.jpg
<TEXT>
Document 62 - file: p7_piesayonpay.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>63
<FILENAME>p10_businessdevmaicon.jpg
<TEXT>
Document 63 - file: p10_businessdevmaicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>64
<FILENAME>p10_execleadershipicon.jpg
<TEXT>
Document 64 - file: p10_execleadershipicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>65
<FILENAME>p10_financialliticon.jpg
<TEXT>
Document 65 - file: p10_financialliticon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>66
<FILENAME>p10_globalbusinessicon.jpg
<TEXT>
Document 66 - file: p10_globalbusinessicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>67
<FILENAME>p10_lasersandtechicon.jpg
<TEXT>
Document 67 - file: p10_lasersandtechicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>68
<FILENAME>p10_mfgoperatingicon.jpg
<TEXT>
Document 68 - file: p10_mfgoperatingicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>69
<FILENAME>p10_otherpubliccoboardicon.jpg
<TEXT>
Document 69 - file: p10_otherpubliccoboardicon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>70
<FILENAME>p10_riskmgticon.jpg
<TEXT>
Document 70 - file: p10_riskmgticon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>71
<FILENAME>p22_greyarrow.jpg
<TEXT>
Document 71 - file: p22_greyarrow.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>72
<FILENAME>p23_greyarrowupanddown.jpg
<TEXT>
Document 72 - file: p23_greyarrowupanddown.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>73
<FILENAME>p24_stockengagementcycle.jpg
<TEXT>
Document 73 - file: p24_stockengagementcycle.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>74
<FILENAME>p30_timelinegraphica01.jpg
<TEXT>
Document 74 - file: p30_timelinegraphica01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>75
<FILENAME>p38_atrisktablehead.jpg
<TEXT>
Document 75 - file: p38_atrisktablehead.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>76
<FILENAME>p38_fixedtablehead.jpg
<TEXT>
Document 76 - file: p38_fixedtablehead.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>77
<FILENAME>p42_aipgraphic.jpg
<TEXT>
Document 77 - file: p42_aipgraphic.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>78
<FILENAME>p42_baradjustedebit.jpg
<TEXT>
Document 78 - file: p42_baradjustedebit.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>79
<FILENAME>p42_barapontsev.jpg
<TEXT>
Document 79 - file: p42_barapontsev.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>80
<FILENAME>p42_barmammen.jpg
<TEXT>
Document 80 - file: p42_barmammen.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>81
<FILENAME>p42_baropresti.jpg
<TEXT>
Document 81 - file: p42_baropresti.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>82
<FILENAME>p42_barovtchinnikov.jpg
<TEXT>
Document 82 - file: p42_barovtchinnikov.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>83
<FILENAME>p42_barrevenue.jpg
<TEXT>
Document 83 - file: p42_barrevenue.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>84
<FILENAME>p42_barscherbakov.jpg
<TEXT>
Document 84 - file: p42_barscherbakov.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>85
<FILENAME>p45_peergroupgraphic.jpg
<TEXT>
Document 85 - file: p45_peergroupgraphic.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>86
<FILENAME>pageref_icon.jpg
<TEXT>
Document 86 - file: pageref_icon.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>87
<FILENAME>pg44_graphicrange.jpg
<TEXT>
Document 87 - file: pg44_graphicrange.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>88
<FILENAME>proxycardback.jpg
<TEXT>
Document 88 - file: proxycardback.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>89
<FILENAME>proxycardfront.jpg
<TEXT>
Document 89 - file: proxycardfront.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>90
<FILENAME>psphoto_child.jpg
<TEXT>
Document 90 - file: psphoto_child.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>91
<FILENAME>psphoto_dougherty.jpg
<TEXT>
Document 91 - file: psphoto_dougherty.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>92
<FILENAME>psphoto_gapontsev.jpg
<TEXT>
Document 92 - file: psphoto_gapontsev.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>93
<FILENAME>psphoto_lego.jpg
<TEXT>
Document 93 - file: psphoto_lego.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>94
<FILENAME>psphoto_meurice.jpg
<TEXT>
Document 94 - file: psphoto_meurice.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>95
<FILENAME>psphoto_peeler.jpg
<TEXT>
Document 95 - file: psphoto_peeler.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>96
<FILENAME>psphoto_samartsev.jpg
<TEXT>
Document 96 - file: psphoto_samartsev.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>97
<FILENAME>psphoto_scherbakov.jpg
<TEXT>
Document 97 - file: psphoto_scherbakov.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>98
<FILENAME>psphoto_seifert.jpg
<TEXT>
Document 98 - file: psphoto_seifert.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>99
<FILENAME>sig_gapontsev.jpg
<TEXT>
Document 99 - file: sig_gapontsev.jpg

</DOCUMENT>
</SEC-DOCUMENT>