Company: IPGP
Filing Date: 2025-02-20
Form Type: S-3ASR
Source: 0001111928-25-000025
Chunk: 8

Company: IPG PHOTONICS CORP
Filing Date: 2025-02-20
Form: S-3ASR
Chunk 8
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 respective dates of documents incorporated by reference herein or therein that include forward-looking statements.

4

### USE OF PROCEEDS
All of the shares of common stock offered hereby are being sold by the Selling Stockholders identified in this prospectus. We will not receive any proceeds from the sale of shares of common stock by the Selling Stockholders.

The Selling Stockholders will pay any underwriting discounts and commissions and expenses incurred by the Selling Stockholders for brokerage, accounting, tax or legal services or any other expenses incurred by the Selling Stockholders in disposing of the shares. Pursuant to the Registration Rights Letter described under “Selling Stockholders,” the Selling Stockholders have also agreed to bear all other costs, fees and expenses incurred in effecting the registration of the shares covered by this prospectus, including, without limitation, all registration and filing fees, and the fees and expenses of our counsel and our independent registered public accountants.

5

### SELLING STOCKHOLDERS
On February 20, 2025, we entered into a Registration Rights Letter with the Selling Stockholders pursuant to which the Selling Stockholders have certain rights to include for registration shares of their common stock. This prospectus covers the sale or other disposition by the Selling Stockholders of up to the total number of shares of common stock held by the Selling Stockholders that are subject to the Registration Rights Letter. Throughout this prospectus, when we refer to the shares of our common stock being registered on behalf of the Selling Stockholders, we are referring to the shares held by the Selling Stockholders that are subject to the Registration Rights Letter.

The Selling Stockholders acquired such shares of common stock from Dr. Valentin P. Gapontsev, the late founder and former Chief Executive Officer and Chairman the Company, in estate planning transactions. On December 17, 2010, Dr. Gapontsev sold 7,200,000 shares of common stock to The Valentin Gapontsev Trust I, an irrevocable trust he established for estate planning purposes (“Trust I”). On the same day, Dr. Gapontsev also gifted 800,000 shares of common stock to Trust I. On December 13, 2012, Dr. Gapontsev established The Valentin Gapontsev Trust III, an irrevocable trust, for estate planning purposes (“Trust III”). On December 13, 2012, Dr. Gapontsev sold 890,000 shares of common stock and gifted 110,