Valentin Gapontsev Trust I - 17 Nov 2025 Form 4 Insider Report for IPG PHOTONICS CORP (IPGP)

Role
10%+ Owner
Signature
/s/ Adam N. King, Attorney-in-Fact for Valentin Gapontsev Trust I
Issuer symbol
IPGP
Transactions as of
17 Nov 2025
Net transactions value
-$5,091,185
Form type
4
Filing time
19 Nov 2025, 16:42:07 UTC
Previous filing
15 Oct 2025
Next filing
16 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Valentin Gapontsev Trust I 10%+ Owner 3 EXECUTIVE PARK DRIVE, SUITE 302, BEDFORD /s/ Adam N. King, Attorney-in-Fact for Valentin Gapontsev Trust I 19 Nov 2025 0001508155

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IPGP Common Stock Sale $761,089 -9,932 -0.14% $76.63 6,982,667 17 Nov 2025 Direct F1, F2
transaction IPGP Common Stock Sale $380,882 -4,852 -0.07% $78.50 6,977,815 17 Nov 2025 Direct F1, F3
transaction IPGP Common Stock Sale $302,644 -3,815 -0.05% $79.33 6,974,000 17 Nov 2025 Direct F1, F4
transaction IPGP Common Stock Sale $2,058,321 -27,126 -0.39% $75.88 6,946,874 18 Nov 2025 Direct F1, F5
transaction IPGP Common Stock Sale $1,588,249 -20,775 -0.3% $76.45 6,926,099 18 Nov 2025 Direct F1, F6
* 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 $76.18 to $77.06 per share. The weighted average price per share was $76.63. 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.
F3 The reported transaction involves sale transactions ranging from $77.91 to $78.86 per share. The weighted average price per share was $78.50. 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.
F4 The reported transaction involves sale transactions ranging from $78.98 to $79.60 per share. The weighted average price per share was $79.33. 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.
F5 The reported transaction involves sale transactions ranging from $75.17 to $76.15 per share. The weighted average price per share was $75.88. 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.
F6 The reported transaction involves sale transactions ranging from $76.22 to $77.00 per share. The weighted average price per share was $76.45. 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.