IP FIBRE DEVICES LTD - 22 Dec 2025 Form 4 Insider Report for IPG PHOTONICS CORP (IPGP)

Role
10%+ Owner
Signature
/s/ Adam N. King, Attorney-in-Fact
Issuer symbol
IPGP
Transactions as of
22 Dec 2025
Net transactions value
-$4,808,590
Form type
4
Filing time
29 Dec 2025, 16:23:34 UTC
Previous filing
25 Nov 2025
Next filing
21 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
IP FIBRE DEVICES LTD 10%+ Owner C/O IPG PHOTONICS CORPORATION, 377 SIMARANO DRIVE, MARLBOROUGH /s/ Adam N. King, Attorney-in-Fact 29 Dec 2025 0001130423

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IPGP Common Stock Sale $1,207,712 -16,060 -0.24% $75.20 6,705,443 22 Dec 2025 Direct F1, F2
transaction IPGP Common Stock Sale $521,914 -6,870 -0.1% $75.97 6,698,573 22 Dec 2025 Direct F1, F3
transaction IPGP Common Stock Sale $537 -7 -0% $76.69 6,698,566 22 Dec 2025 Direct F1
transaction IPGP Common Stock Sale $2,119,581 -28,405 -0.42% $74.62 6,670,161 23 Dec 2025 Direct F1, F4
transaction IPGP Common Stock Sale $3,000 -40 -0% $75.00 6,670,121 23 Dec 2025 Direct F1
transaction IPGP Common Stock Sale $788,726 -10,560 -0.16% $74.69 6,659,561 24 Dec 2025 Direct F1, F5
transaction IPGP Common Stock Sale $167,120 -2,225 -0.03% $75.11 6,657,336 24 Dec 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 $74.68 to $75.66 per share. The weighted average price per share was $75.20. 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 $75.69 to $76.42 per share. The weighted average price per share was $75.97. 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 $73.89 to $74.87 per share. The weighted average price per share was $74.62. 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 $74.04 to $75.00 per share. The weighted average price per share was $74.69. 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 $75.06 to $75.30 per share. The weighted average price per share was $75.11. 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.