Insider Trading & Ownership of VALENTIN P. GAPONTSEV

Location: Oxford, MA
Signature: /s/ Angelo P. Lopresti, Executor of the Estate of Valentin P. Gapontsev
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Ownership of VALENTIN P. GAPONTSEV

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
IPGP	IPG PHOTONICS CORP	Former Exec Chair and Director, Director, 10%+ Owner				31 Dec 2021