Ma Yue NMN bought ACMR

October 1, 2026 · Form 4 insider transaction

Ma Yue NMN bought 100,000 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 36 days after the transaction.

Direction
Acquired (buy-side)
Shares
100,000
Price
$0.00
Total value
N/A
InsiderMa Yue NMN
RoleOfficer
SecurityStock Option
Transaction codeA: Grant or award
Transaction dateOctober 1, 2026
Filing dateNovember 6, 2026
Shares owned after100,000
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

Twenty-five percent of the stock option shares shall vest on October 1, 2027, with the balance of the stock option shares vesting in thirty-six successive equal monthly installments as of the first day of each month beginning November 2027, subject to continued service.

View the original Form 4 on SEC EDGAR