| 2025-10-03 | 8-K | 10.5 | IPG Photonics Corporation Non-Employee Director Compensation Plan. |
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| 2025-10-03 | 8-K | 10.4 | Amendment to Employment Agreement between the Registrant and Dr. Mark Gitin, dated September 30, 2025. |
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| 2025-10-03 | 8-K | 10.3 | IPG Photonics Corporation Senior Executive Annual Incentive Plan. |
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| 2025-10-03 | 8-K | 10.2 | Form of Severance Plan Participation Agreements dated September 30, 2025 between the Registrant and each of Angelo Lopresti, Timothy Mammen, Trevor Ness and Dr. Igor Samartsev. |
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| 2025-10-03 | 8-K | 10.1 | IPG Photonics Corporation Executive Severance Plan, amended and restated on September 30, 2025. |
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| 2025-07-08 | 8-K | 10.2 | IPG Photonics Corporation Executive Severance Plan, amended and restated on June 1, 2019, as amended. |
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| 2025-07-08 | 8-K | 10.1 | Managing Director's Service Contract dated July 1, 2025 between IPG Photonics GmbH & Co. KG and Dr. Paulus Bucher. |
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| 2025-06-30 | 8-K | 10.1 | Credit Agreement dated as of June 24, 2025 among IPG Photonics Corporation and certain subsidiaries, and Bank of America, N.A., in its capacity as Administrative Agent, Swing Line Lender and L/C Issuer, the other L/C Issuers, and the other Lenders from time to time a party thereto. |
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| 2025-05-21 | 8-K | 10.1 | 2025 Incentive Compensation Plan effective May 20, 2025. |
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| 2025-04-11 | 8-K | 10.1 | Amendment to Services Agreement dated April 8, 2025 between the Registrant and Dr. Alexander Ovtchinnikov |
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| 2024-08-16 | 8-K | 10.1 | Services Agreement dated August 15, 2024 between the Registrant and Dr. Alexander Ovtchinnikov |
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| 2024-04-30 | 8-K | 10.3 | Advisor Agreement dated April 25, 2024 between the Registrant and Dr. Eugene Scherbakov |
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| 2024-04-30 | 8-K | 10.2 | Transition Agreement dated April 25, 2024 between the Registrant, IPG Laser GmbH & Co. KG and Dr. Eugene Scherbakov |
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| 2024-04-30 | 8-K | 10.1 | Employment Agreement dated April 25, 2024 between the Registrant and Dr. Mark Gitin |
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| 2023-09-01 | 8-K | 10.1 | Amendment to Dr. Scherbakov Service Agreement |
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| 2023-08-01 | 10-Q | 10.1 | 2006 Incentive Compensation Plan, as amended and restated effective May 23, 2023 |
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| 2023-02-27 | 10-K | 10.3 | Senior Executive Annual Incentive Plan, as amended and restated April 28, 2020 |
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| 2023-02-22 | 8-K | 10.1 | IPG Photonics Corporation Non-Employee Director Compensation Plan |
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| 2021-11-12 | 8-K | 10.1 | IPG Photonics Corporation Non-Employee Director Compensation Plan, as amended. |
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| 2021-08-04 | 10-Q | 10.4 | Confidentiality, Non-Competition and Confirmatory Assignment Agreement dated May 4, 2021 between the Registrant and Dr. Eugene Scherbakov. |
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| 2021-08-04 | 10-Q | 10.3 | Service Agreement dated May 4, 2021 between IPG Laser GmbH and Dr. Eugene Scherbakov. |
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| 2021-08-04 | 10-Q | 10.2 | Secondment Agreement dated May 4, 2021 among the Registrant, IPG Laser GmbH and Dr. Eugene Scherbakov. |
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| 2021-08-04 | 10-Q | 10.1 | Employment Agreement dated May 4, 2021 between Registrant and Dr. Valentin P. Gapontsev. |
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| 2021-02-22 | 8-K | 10.1 | IPG Photonics Corporation Non-Employee Director Compensation Plan, as amended. |
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| 2020-04-23 | 8-K | 10.1 | First Amendment to Credit Facility Agreement dated April 20, 2020 between IPG Laser GmbH and Deutsche Bank AG |
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| 2020-03-26 | 8-K | 10.2 | Revolving Credit Note, between the Company and Bank of America dated March 25, 2020. |
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| 2020-03-26 | 8-K | 10.1 | Second Amended and Restated Loan Agreement, between the Company and Bank of America dated as of March 25, 2020. |
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| 2020-02-24 | 10-K | 10.7 | Form of Employment Agreement dated May 30, 2019 between the Registrant and each of Timothy P.V. Mammen, Angelo P. Lopresti and Alexander Ovtchinnikov |
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| 2020-02-24 | 10-K | 10.6 | Service Agreement dated May 30, 2019 between IPG Laser GmbH and Dr. Eugene Scherbakov |
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| 2020-02-24 | 10-K | 10.5 | Employment Agreement dated May 30, 2019 between the Registrant and Dr. Valentin P. Gapontsev |
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| 2020-02-21 | 8-K | 10.1 | IPG Photonics Corporation Non-Employee Director Compensation Plan, as amended. |
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| 2019-06-03 | 8-K | 10.1 | 2008 EE STK PURCHASE PLAN AS A&R |
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| 2018-02-28 | 10-K | 10.24 | Guaranty of the Registrant to Banc of America Lease & Capital, LLC, dated July 27, 2017 |
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| 2018-02-28 | 10-K | 10.23 | Promissory Note between TVPX Aircraft Solutions dated July 27, 2017, as Trustee under the Trust Pledge Agreement between Registrant and Trustee dated July 27, 2017, and Banc of America Leasing & Capital, LLC dated July 27, 2017 |
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| 2018-02-28 | 10-K | 10.22 | Loan and Aircraft Security Agreement between TVPX Aircraft Solutions, as Trustee under the Trust Pledge Agreement between Registrant and Trustee dated July 27, 2017, and Banc of America Leasing & Capital, LLC dated July 27, 2017 |
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| 2017-08-01 | 8-K | 10.3 | Guarantee of the Registrant to Deutsche Bank AG dated July 31, 2017 |
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| 2017-08-01 | 8-K | 10.2 | Annex 1 to Corporate Guarantee to Deutsche Bank AG dated July 31, 2017 |
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| 2017-08-01 | 8-K | 10.1 | Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG dated July 31, 2017 |
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| 2017-02-27 | 10-K | 10.44 | Annex I (Fourth Amendment) to Guarantee of IPG Laser GmbH to Deutsche Bank AG dated December 16, 2016 |
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| 2017-02-27 | 10-K | 10.43 | Fourth Amendment to Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated December 16, 2016 |
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| 2017-02-22 | 8-K | 10.5 | IPG Photonics Corporation Non-Employee Director Compensation Plan, as amended |
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| 2017-02-22 | 8-K | 10.4 | Form of Letter Amending Employment Agreement and Confidentiality, Non-Competition and Confirmatory Assignment Agreement between the Registrant and Valentin Gapontsev, Eugene Scherbakov, Timothy P.V. Mammen, Alexander Ovtchinnikov, Trevor Ness and Angelo P. Lopresti |
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| 2017-02-22 | 8-K | 10.3 | Form of Indemnification Agreement between the Registrant and each of its Directors and Executive Officers |
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| 2017-02-22 | 8-K | 10.2 | IPG Photonics Corporation Senior Executive Annual Incentive Plan, as amended |
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| 2017-02-22 | 8-K | 10.1 | IPG Photonics Corporation 2006 Incentive Compensation Plan, as amended |
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| 2016-11-02 | 10-Q | 10.2 | Annex I (Third Amendment) to Guarantee of IPG Laser GmbH to Deutsche Bank AG dated November 1, 2016 |
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| 2016-11-02 | 10-Q | 10.1 | Third Amendment to Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated November 1, 2016 |
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| 2016-05-20 | 8-K | 10.4 | Term Note, between the Registrant and Bank of America, N.A., dated May 19, 2016. |
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| 2016-05-20 | 8-K | 10.3 | First Amendment to the Amended and Restated Loan Agreement, between the Registrant and Bank of America, N.A. dated as of May 19, 2016. |
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| 2016-05-20 | 8-K | 10.2 | Annex 1 to (2nd Amendment) Guarantee of IPG Laser GmbH to Deutsche Bank AG, dated April 18, 2016. |
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| 2016-05-20 | 8-K | 10.1 | Second Amendment of the Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated April 18, 2016. |
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| 2015-10-27 | 8-K | 10.1 | Amendment to the IPG Photonics Corporation 2006 Incentive Compensation Plan, as amended |
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| 2015-10-06 | 8-K | 10.2 | Annex 1 to (1st Amendment) Guarantee of IPG Laser GmbH to Deutsche Bank AG, dated October 1, 2015. |
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| 2015-10-06 | 8-K | 10.1 | First Amendment of the Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated October 1, 2015. |
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| 2015-09-14 | 8-K | 10.1 | Amendment to the IPG Photonics Corporation |
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| 2015-05-06 | 10-Q | 10.2 | Revolving credit note with Bank of America, N.A. |
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| 2015-05-06 | 10-Q | 10.1 | Amended and restated loan agreement with Bank of America, N.A. |
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| 2015-04-07 | 8-K | 10.2 | IPG PHOTONICS CORPORATION 2006 INCENTIVE COMPENSATION PLAN |
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| 2015-04-07 | 8-K | 10.1 | IPG PHOTONICS CORPORATION NON-EMPLOYEE DIRECTOR COMPENSATION PLAN |
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| 2014-11-07 | 10-Q | 10.1 | Amendment to loan agreement with Bank of America, N.A. |
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| 2014-08-22 | 8-K | 10.3 | Amendment to IPG Photonics Corporation 2000 Incentive Compensation Plan |
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| 2014-08-22 | 8-K | 10.2 | Amendment to IPG Photonics Corporation 2006 Incentive Compensation Plan |
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| 2014-08-22 | 8-K | 10.1 | Amendment to IPG Photonics Corporation Non-Employee Directors Stock Plan |
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| 2014-08-14 | 8-K | 10.4 | Annex 1 to Guarantee of IPG Laser GmbH to Deutsche Bank AG, dated August 11, 2014. |
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| 2014-08-14 | 8-K | 10.3 | Guarantee of IPG Laser GmbH to Deutsche Bank AG, dated August 7, 2014. |
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| 2014-08-14 | 8-K | 10.2 | Guarantee of the Registrant to Deutsche Bank AG, dated August 7, 2014. |
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| 2014-08-14 | 8-K | 10.1 | Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated August 7, 2014. |
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| 2014-07-01 | 8-K | 10.1 | SECOND AMENDMENT TO CREDIT FACILITY AGREEMENT |
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| 2014-03-04 | 8-K | 10.4 | Enclosure 1 to Guarantee to Deutsche Bank AG, dated February 25, 2014. |
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| 2014-03-04 | 8-K | 10.3 | Guarantee of the Registrant to Deutsche Bank AG, dated February 25, 2014. |
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| 2014-03-04 | 8-K | 10.2 | Amendment 1 to Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated February 25, 2014. |
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| 2012-06-29 | 8-K | 10.4 | Enclosure 1 to Guarantee to Deutsche Bank AG, dated June 18, 2012, in the amount of Euro 9 million by IPG Laser GmbH and the Registrant. |
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| 2012-06-29 | 8-K | 10.3 | Guarantee of the Registrant to Deutsche Bank AG dated, June 26, 2012. |
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| 2012-06-29 | 8-K | 10.2 | Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated June 18, 2012. |
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| 2012-06-29 | 8-K | 10.1 | Purchase Agreement by and among the Registrant, Open Joint Stock Company “Rusnano”, IPG Laser GmbH and NTO IRE-Polus, dated June 28, 2012. |
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| 2011-08-02 | 8-K | 10.1 | 2006 Stock Incentive Plan, as amended |
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| 2011-03-15 | 10-K | 10.28 | Credit Facility Agreement |
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| 2010-11-09 | 10-Q | 10.3 | Term Note Modification Agreement No. 1, between the Registrant and Bank of America, N.A., dated as of September 30, 2010 |
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| 2010-11-09 | 10-Q | 10.2 | Revolving Credit Note Modification Agreement No. 1, between the Registrant and Bank of America, N.A., dated as of September 30, 2010 |
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| 2010-11-09 | 10-Q | 10.1 | Second Amendment to Loan Agreement, between the Registrant and Bank of America, N.A., dated as of September 30, 2010 |
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| 2010-11-04 | 8-K | 10.2 | THE RUSSIAN CORPORATION OF NANOTECHNOLOGIES PUT AND CALL OPTION AGREEMENT |
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| 2010-11-04 | 8-K | 10.1 | DATED 29 October 2010 |
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| 2010-04-06 | 8-K | 10.1 | NONEE DIR STK PLAN |
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| 2009-12-21 | 8-K | 10.1 | AMENDMENT TO EMPLOYMENT AGREEMENT |
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| 2009-06-15 | 8-K | 10.1 | 2008 EE STK PURCHASE PLAN AS AMENDED |
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| 2009-03-12 | 10-K | 10.28 | EX-10.28 ANNEX 1 DATED MARCH 5, 2009 |
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| 2009-03-12 | 10-K | 10.26 | EX-10.26 AMENDMENT 1 TO CREDIT FACILITY |
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