Company: IPGP
Filing Date: 2025-04-07
Form Type: DEF 14A
Source: 0001111928-25-000054
Chunk: 1

Company: IPG PHOTONICS CORP
Filing Date: 2025-04-07
Form: DEF 14A
Chunk 1
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 the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for 2025 |     | ü                         |     | FOR             |     |                     |     | Page62 |

Stockholders will also transact any other business that may properly come before the meeting.

You may vote on these matters in person or by proxy. Whether or not you plan to attend the Annual Meeting, we ask that you promptly vote your shares.

By order of the Board of Directors

IPG PHOTONICS CORPORATION

#### ANGELO P. LOPRESTI

#### Secretary
March 31, 2025

Marlborough, Massachusetts

#### How to Vote
| INTERNET                       
 Go towww.investorvote.com/ipgp 
 or scan the QR code contained  
 in the attached proxy card     |     | TELEPHONE             
 1-800-652-VOTE (8683) |     | MAIL                                                                                  
 Mark, sign, date and promptlymail the enclosed proxy cardin the postage-paid envelope |

1

#### 2025 Annual Letter
Dear Stockholders,

In June of last year, I had the privilege of stepping into the role of CEO at IPG Photonics. I had long admired IPG’s ability to push the boundaries of fiber laser technology from the outside. Now, from the inside, I’ve been even more inspired by the depth of expertise, the relentless innovation, and the commitment of our team.

It’s clear that we have a tremendous foundation: a strong product portfolio, an unmatched technical edge, and significant opportunities for growth. Over the past several months, I’ve spent time meeting with many of our stockholders, listening, learning, and discussing the roadmap ahead. At the same time, we’re navigating a tough market, and while we can’t control external headwinds, we are taking decisive action to strengthen our position for the future.

One of our key priorities in 2024 was ensuring a smooth and efficient exit from our Russian operations—something we achieved without disruption to our product shipments. We also made a strategic move to expand our capabilities with the acquisition of cleanLASER, a leader in laser cleaning systems, which opens new and attractive markets for us. We continued to optimize our global manufacturing footprint and reduce product costs, positioning us well for future growth. In addition, we have several projects underway that strengthen our industry leadership and differentiation in multiple markets. I am particularly excited about our technological advancements in high-power fiber lasers, real-time weld monitoring systems, laser-based cleaning solutions