Company: IPGP
Filing Date: 2025-05-21
Form Type: S-8
Source: 0001111928-25-000075
Chunk: 1

Company: IPG PHOTONICS CORP
Filing Date: 2025-05-21
Form: S-8
Chunk 1
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elerated 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. ☐

### EXPLANATORY NOTE
This Registration Statement on Form S-8 (the “Registration Statement”) relates to the registration of (i) an aggregate of 2,094,137 shares (the "Plan Shares") of common stock, $0.0001 par value per share (“Common Stock”), of IPG Photonics Corporation (the “Registrant”), under the IPG Photonics Corporation 2025 Incentive Compensation Plan (the “Plan”) and (ii) 252,998 additional shares (the “ESPP Shares”) of its Common Stock, reserved for issuance under the IPG Photonics Corporation 2008 Employee Stock Purchase Plan (the “ESPP”), pursuant to the “evergreen” provision of ESPP.

The Plan was adopted by the Board of Directors of the Registrant on March 28, 2025, subject to shareholder approval. The Plan was approved by the shareholders at the Registrant's annual meeting of stockholders held on May 20, 2025.

The Plan Shares consist of 2,100,000 shares of Common Stock, less one share of Common Stock for every share of Common Stock subject to an award granted after March 10, 2025 under the IPG Photonics Corporation 2006 Incentive Compensation Plan, as amended and restated effective May 23, 2023.

The number of shares of Common Stock available for grant and issuance under the ESPP is subject to an annual increase on January 1 of each year by an amount equal to the greater of (i) the number of shares of Common Stock available under the ESPP as of the last day of the immediately preceding fiscal year and (ii) the lesser of (A) 400,000 shares of Common Stock and (B) seventy-five hundredths of one percent (0.75%) of the outstanding shares of Common Stock on the last day of the immediately preceding fiscal year. The ESPP Shares registered pursuant to this Registration Statement are of the same class of securities as the 369,672 shares of Common Stock registered