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Reporting owner

Wang David H

Reporting owner CIK 0001721580 · See Remarks · Director · 10% owner

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These transactions appear in filings associated with this reporting owner. Jointly reported quantities and amounts are unallocated; they are not this owner's individual purchases or total holdings. Names and roles reflect the relevant filing, and a reporting owner may be a person or an organization.

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Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.Wang David HWang David HWang David H · December 4, 2025 · Exercise / conversion · Class A Common StockWang David H · December 3, 2025 · Exercise / conversion · Class A Common StockWang David H · October 27, 2025 · Stock award · Stock OptionOct 27, 2025Dec 4, 2025
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

3 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Dec 4, 2025ACM Research, Inc.Class A Common StockWang David HExercise / conversion
Dec 3, 2025ACM Research, Inc.Class A Common StockWang David HExercise / conversion
Oct 27, 2025ACM Research, Inc.Stock OptionWang David HStock award

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Transactions in associated filings

Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedCompanyReporting ownersType / securityQuantityPrice / reference valueDetails
Trade: ACM Research, Inc.ACMR · company listings
Wang David HSee Remarks · Director · 10% owner
Exercise / conversionClass A Common StockNon-derivative security · Code M60,0001Value: 60,000Currency not specifiedView ↗
Trade: ACM Research, Inc.ACMR · company listings
Wang David HSee Remarks · Director · 10% owner
Exercise / conversionClass A Common StockNon-derivative security · Code M70,0001Value: 70,000Currency not specifiedView ↗
Trade: ACM Research, Inc.ACMR · company listings
Wang David HSee Remarks · Director · 10% owner
Stock awardStock OptionDerivative security · Code A545,4000Value: 0Currency not specifiedView ↗