Desmond Jeanmarie F. 4

What Happened
Desmond Jeanmarie, a director of IPG Photonics Corp (IPGP), sold 1,690 shares in an open-market transaction on May 14, 2026. The reported weighted-average price was $105.58 per share, for total proceeds of approximately $178,430. This was a sale (disposition) rather than a purchase or option exercise.

Key Details

• Transaction date: May 14, 2026 (reported on Form 4 filed May 15, 2026).
• Transaction type/code: Open-market sale (Code S).
• Price(s): Shares sold at prices ranging from $105.11 to $105.89; weighted average $105.58.
• Total proceeds: Approximately $178,430.
• Shares owned after transaction: Not disclosed in the provided filing excerpt.
• Footnote: F1 notes multiple sale prices (range above) and the reporting person will provide, on request, the number of shares sold at each separate price.
• Timeliness: Filing appears timely (transaction 5/14/2026; Form 4 filed 5/15/2026).

Context
Insider sales are common and may reflect routine liquidity needs; they do not on their own indicate the insider’s view of the company’s prospects. There is no indication in this filing of an option exercise, award, gift, or 10% ownership change related to this transaction.