Valentin Gapontsev Trust I - 20 Feb 2025 SCHEDULE 13D/A Report for IPG Photonics Corporation Common stock, par value $0.0001 per share (IPGP)

Filing Manager: Valentin Gapontsev Trust I
Reporting Manager: Shcherbakov Eugene A
Security: IPG Photonics Corporation Common stock, par value $0.0001 per share
Symbol: IPGP
Shares outstanding: 42,657,726 shares
Disclosed Ownership: 15,740,701 shares
Ownership: 36.9%
Form type: SCHEDULE 13D/A
Filing time: 20 Feb 2025, 17:25:05 UTC
Date of event: 20 Feb 2025
SEC: View on sec.gov

Reporting Managers (4)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Valentin Gapontsev Trust I	16.9%	7,200,599	7,200,599	0	/s/ Angelo P. Lopresti, /s/ Eugene Scherbakov, /s/ Christopher C. Martin	Angelo P. Lopresti, Trustee, Eugene Scherbakov, Trustee, and Christopher C. Martin, President of IQ EQ Trust Company, U.S., LLC	0001508155
Lopresti Angelo P	20.6%	8,785,398	82,188	8,703,210	/s/ Angelo P. Lopresti	Angelo P. Lopresti	0001378548
Shcherbakov Eugene A	36.9%	15,740,701	7,037,491	8,703,210	/s/ Eugene Scherbakov	Eugene Scherbakov	0001378544
IQ EQ Trust Company, U.S., LLC	21.2%	9,001,848	298,638	8,703,210	/s/ Christopher C. Martin	Christopher C. Martin, President