Company: IPGP
Filing Date: 2025-02-20
Form Type: S-3ASR
Source: 0001111928-25-000025
Chunk: 1

Company: IPG PHOTONICS CORP
Filing Date: 2025-02-20
Form: S-3ASR
Chunk 1
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 pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☒

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large accelerated filer |     | ☒ |     | Accelerated filer         |     | ☐ |
| Non-accelerated filer   |     | ☐ |     | Smaller reporting company |     | ☐ |
|                         |     |   |     | Emerging growth company   |     | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

#### PROSPECTUS

#### 2,150,000 Shares

#### IPG Photonics Corporation

#### Common Stock
| This prospectus relates to the offer and resale from time to time by The Valentin Gapontsev Trust I and The Valentin Gapontsev Trust III, or collectively, the Selling Stockholders, of up to an aggregate of 2,150,000 shares of our common stock.  All of the shares are outstanding shares of common stock held by the Selling Stockholders.  We will not sell any shares of common stock under this prospectus and will not receive any of the proceeds from the sale or other disposition of common stock by the Selling Stockholders. |

The Selling Stockholders identified in this prospectus or their pledgees, assignees or successors-in-interest may offer and sell or otherwise