<SEC-DOCUMENT>0001130421-21-000003-index.html : 20210216 <SEC-HEADER>0001130421-21-000003.hdr.sgml : 20210216 <ACCEPTANCE-DATETIME>20210216163005 ACCESSION NUMBER: 0001130421-21-000003 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210216 DATE AS OF CHANGE: 20210216 SUBJECT COMPANY: 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: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-82507 FILM NUMBER: 21639176 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: GAPONTSEV VALENTIN P CENTRAL INDEX KEY: 0001130421 FILING VALUES: FORM TYPE: SC 13G/A MAIL ADDRESS: STREET 1: 660 MAIN STREET CITY: STURBRIDGE STATE: MA ZIP: 01566 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>vgsc13gafebruary2021.htm <DESCRIPTION>SC 13G/A <TEXT> Document 1 - file: vgsc13gafebruary2021.htm
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