Dun Haipinginsider trades

In SEC Form 4 filings, Dun Haiping is listed as Director of ACM Research, Inc. (ACMR). Dun Haiping reported no open-market purchases or sales in the last 90 days. The latest Form 4 transaction on record was filed on Aug 26.

Companies and roles

Company	Role	Transactions	Last filed
ACMRACM Research, Inc.	Director	2	Aug 26

Cluster buys

No cluster buy in the last 90 days included a purchase by this insider (two or more insiders buying within 14 days).

Form 4 historysince 2026-08-26

Company	Traded	Filed	Type	Shares	Price	Value	Owned after	10b5-1 plan	Filing
ACMRACM Research, Inc.	Aug 12	Aug 26	A · derivative	6,400	$81.26	$520,064	6,400	No	Form 4
ACMRACM Research, Inc.	Aug 12	Aug 26	A · derivative	728	$96.13	$69,983	728	No	Form 4

Published from this insider's public Form 4 filings on SEC EDGAR; the name is shown as filed. Named in a filing and want this page removed? See the privacy policy.