Form 4 Tracker
ACM Research, Inc.
ACMR

3 insider filings · Latest: Jun 3, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 4, 2026Jun 5 4:30 PMDavid H WangDirector, Chief Executive Officer, President and Director, 10% Owner
Sale
40,002$85.80$3.4M802,708(D)

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Jun 3, 2026Jun 5 4:30 PMDavid H WangDirector, Chief Executive Officer, President and Director, 10% Owner
Sale
60,000$90.05$5.4M802,708(D)

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May 19, 2026May 21 4:30 PMHaiping DunDirector
Sale
5,000$66.22$331.1K0(D)

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Apr 17, 2026Apr 21 4:30 PMCharles C PappisDirector
Sale
5,000$52.00$260.0K0(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 4, 2026Jun 5 4:30 PMDavid H WangDirector, Chief Executive Officer, President and Director, 10% Owner
Option Exercise
40,002$1.00270,000(D)

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Jun 3, 2026Jun 5 4:30 PMDavid H WangDirector, Chief Executive Officer, President and Director, 10% Owner
Option Exercise
60,000$1.00310,002(D)

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May 19, 2026May 21 4:30 PMHaiping DunDirector
Option Exercise
5,000$5.6050,000(D)

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Apr 17, 2026Apr 21 4:30 PMCharles C PappisDirector
Option Exercise
5,000$29.180(D)

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