If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


 
Valentin Gapontsev Trust I
 
Signature:/s/ Angelo P. Lopresti, /s/ Eugene Scherbakov, /s/ Christopher C. Martin
Name/Title:Angelo P. Lopresti, Trustee, Eugene Scherbakov, Trustee, and Christopher C. Martin, President of IQ EQ Trust Company, U.S., LLC
Date:07/28/2026
 
Lopresti Angelo P
 
Signature:/s/ Angelo P. Lopresti
Name/Title:Angelo P. Lopresti
Date:07/28/2026
 
IQ EQ Trust Company, U.S., LLC
 
Signature:/s/ Christopher C. Martin
Name/Title:Christopher C. Martin, President
Date:07/28/2026
 
Shcherbakov Eugene A
 
Signature:/s/ Eugene Scherbakov
Name/Title:Eugene Scherbakov
Date:07/28/2026

ATTACHMENTS / EXHIBITS

ATTACHMENTS / EXHIBITS

EX-1