Delaware (State or Other Jurisdiction of Incorporation) | 001-33155 (Commission File No.) | 04-3444218 (IRS Employer Identification No.) | ||||||||||||
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) | |||||||
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) | |||||||
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) | |||||||
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) | |||||||
| Title of each class | Trading Symbol | Name of each exchange on which registered | ||||||
| Common Stock, par value $0.0001 per share | IPGP | Nasdaq Global Select Market | ||||||
| Exhibit Number | Exhibit Description | |||||||
| Exhibit 99.1 | ||||||||
| Exhibit 104 | Inline XBRL for the cover page of this Current Report on Form 8-K. | |||||||
| IPG PHOTONICS CORPORATION | ||||||||||||||
| March 16, 2026 | By: | /s/ Angelo P. Lopresti | ||||||||||||
| Angelo P. Lopresti | ||||||||||||||
| Senior Vice President, General Counsel and Corporate Secretary | ||||||||||||||