David H. Wang - Insider Trading & Ownership

Location: C/O Acm Research, Inc., 42307 Osgood Road, Suite I, Fremont, CA
Summary: The estimated net worth of David H. Wang is at least $58.5M dollars as of December 5, 2025. David H. Wang is the Chief Executive Officer, President and Director, Director, 10%+ Owner of ACM Research, Inc. and owns shares of ACM Research, Inc. (ACMR) stock worth about $58.5M.
Signature: /s/ Mark McKechnie, Attorney-in-Fact for David H. Wang
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Ownership of David H. Wang

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
ACMR	ACM Research, Inc.	Chief Executive Officer, President and Director, Director, 10%+ Owner	$58.5M	-$14.4M	-19.7%	Dec 3, 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.