Dun Haiping bought ACMR
March 9, 2026 · Form 4 insider transaction
Dun Haiping bought 5,000 shares of ACM Research, Inc. at $5.60 per share, a transaction worth $28.0K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
5,000
Price
$5.60
Total value
$28.0K
InsiderDun Haiping
RoleDirector
CompanyACM Research, Inc. (ACMR)
SecurityClass A Common Stock
Transaction codeM: Option exercise
Transaction dateMarch 9, 2026
Filing dateMarch 11, 2026
Shares owned after5,000
OwnershipDirect
10b5-1 planNo
AmendedNo