Valentin Gapontsev Trust I - Insider Trading & Ownership

Location: 3 Executive Park Drive, Suite 302, Bedford, NH
Summary: The estimated value of insider holdings of Valentin Gapontsev Trust I is at least $530M dollars as of November 19, 2025. Valentin Gapontsev Trust I is the 10%+ Owner of IPG PHOTONICS CORP and owns shares of IPG PHOTONICS CORP (IPGP) stock worth about $530M.
Signature: /s/ Adam N. King, Attorney-in-Fact for Valentin Gapontsev Trust I
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Ownership of Valentin Gapontsev Trust I

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
IPGP	IPG PHOTONICS CORP	10%+ Owner	$530M	-$20.7M	-3.77%	Nov 17, 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.