Dun Haiping bought ACMR
August 12, 2026 · Form 4 insider transaction
Dun Haiping bought 6,400 shares of ACM Research, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 14 days after the transaction.
Direction
Acquired (buy-side)
Shares
6,400
Price
$0.00
Total value
N/A
InsiderDun Haiping
RoleDirector
CompanyACM Research, Inc. (ACMR)
SecurityStock Option
Transaction codeA: Grant or award
Transaction dateAugust 12, 2026
Filing dateAugust 26, 2026
Shares owned after6,400
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
The option will vest and become exercisable immediately prior to the 2027 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.