IPGP IPG PHOTONICS CORP Management Changes 8-K Filing 2023 - Appointment and Resignation IPG Photonics Corp announced the appointment of Gregory R. Beecher to the Board of Directors and the resignation of Thomas J. Seifert from the Board, as well as the correction of typographical errors in the Amended and Restated Bylaws. Insiders of the company have adopted pre-arranged trading plans for the sale of shares.Get access to all SEC 8-K filings of the IPG PHOTONICS CORP