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

Company: IPG PHOTONICS CORP
Filing Date: 2025-05-21
Form: S-8
Chunk 8
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 Massachusetts on this 20th day of May, 2025.

| IPG PHOTONICS CORPORATION |     |                               |
| By:                       |     | /s/ Mark M. Gitin             |
|                           |     | Mark M. Gitin                 |
|                           |     | Chief Executive Officer       
 (Principal Executive Officer) |

### POWER OF ATTORNEY
We, the undersigned directors and officers of the Registrant, hereby severally constitute and appoint Mark M. Gitin, Ph.D. and Angelo P. Lopresti, Esq., and each of them singly, our true and lawful attorneys, with full power to them, and to each of them singly, to sign for us and in our names in the capacities indicated below, the registration statement on Form S-8 filed herewith, and any and all pre-effective and post-effective amendments to said registration statement, and any registration statement filed pursuant to Rule 462(b) under the Securities Act, in connection with the registration under the Securities Act, as amended, of equity securities of the Registrant, and to file or cause to be filed the same, with all exhibits thereto and other documents in connection therewith, with the U.S. Securities and Exchange Commission, granting unto said attorneys, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as each of them might or could do in person, and hereby ratifying and confirming all that said attorneys, and each of them, or their substitute or substitutes, shall do or cause to be done by virtue of this Power of Attorney. This Power of Attorney does not revoke any power of attorney previously granted by the undersigned, or any of them.

Pursuant to the requirements of the Securities Act, as amended, this Registration Statement has been signed by the following persons in the capacities indicated on the date indicated:

#### [Signature Page Follows]
| Signature                   
 /s/    Mark M. Gitin        
 Mark M. Gitin               
 /s/    Timothy P.V. Mammen  
 Timothy P.V. Mammen         |     | Title                                                                          
 Chief Executive Officer and Director                                           
 (Principal Executive Officer)                                                  
 Senior Vice President and Chief Financial Officer(Principal Financial Officer) |     | Date         
 May 20, 2025 
 May 20, 2025 |
|:----------------------------|:----|:-------------------------------------------------------------------------------|:----