Reporting owner · Q3 2026 · CIK 1721580

Wang David H: insider trades.

Wang David H reported 11 non-derivative transactions on 2 SEC ownership filings in Q3 2026: 0 open-market purchases and 9 sales ($10.6M), across 1 company.

Transactions
11
Purchases (P)
0
Sales (S)
9
Companies
1
Name as filed
Wang David H

Companies

CompanyRelationshipTransactions
ACM Research, Inc. (ACMR)Director, Officer, TenPercentOwner · See Remarks11

Transactions

11 non-derivative rows. Shares and prices as filed.
DateCompanyCodeSharesPriceOwned afterFiling
2026-09-09ACM Research, Inc.S4,807$76.73803,808Form 4
2026-09-09ACM Research, Inc.S1,100$77.59802,708Form 4
2026-09-09ACM Research, Inc.S11,666$75.58808,615Form 4
2026-09-09ACM Research, Inc.S18,934$74.67820,281Form 4
2026-09-09ACM Research, Inc.S33,493$73.8839,215Form 4
2026-09-09ACM Research, Inc.M70,000$1872,708Form 4
2026-09-08ACM Research, Inc.S1,500$78.57802,708Form 4
2026-09-08ACM Research, Inc.S12,323$78.08804,208Form 4
2026-09-08ACM Research, Inc.S51,374$77.15816,531Form 4
2026-09-08ACM Research, Inc.M70,000$1872,708Form 4
2026-09-08ACM Research, Inc.S4,803$75.99867,905Form 4

Questions

What stock did Wang David H buy or sell?

Wang David H reported 11 non-derivative transactions on 2 SEC ownership filings in Q3 2026: 0 open-market purchases and 9 sales ($10.6M), across 1 company.

Is Wang David H the same person as other filers with this name?

This page covers SEC CIK 1721580 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.

Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.

Plain-text version for agents and LLMs: /insiders/wang-david-h-1721580.md

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