Angelo P. Lopresti - 09 Dec 2025 Form 4 Insider Report for IPG PHOTONICS CORP (IPGP)

Signature
/s/ Adam N. King, Attorney-in-Fact
Issuer symbol
IPGP
Transactions as of
09 Dec 2025
Transactions value $
-$127,605
Form type
4
Filing time
10 Dec 2025, 16:31:23 UTC
Previous filing
29 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Lopresti Angelo P SVP, Secretary & Gen Counsel, 10%+ Owner C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH /s/ Adam N. King, Attorney-in-Fact 10 Dec 2025 0001378548

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IPGP Common Stock Sale -$128K -1.5K -2.44% $85.07 59.9K 09 Dec 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.
F2 The reported transaction involves sale transactions ranging from $85.00 to $85.26 per share. The weighted average price per share was $85.07. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price