InsiderTrades

Form 4 for ACMR ACM Research, Inc.

Accepted 2023-07-05 00:00:00 ET · period of report 2023-07-03 · accession 0001140361-23-033166 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2023-07-05 2023-07-03 ACMR Feng Lisa See remarks M - OptEx $1.77 +22.5K 72.5K +45% +$39.8K
D 2023-07-05 2023-07-03 ACMR Feng Lisa See remarks S - Sale+OE $15.00 -22.5K 50.0K -31% -$337.5K
D 2023-07-05 2023-07-03 ACMR Feng Lisa See remarks M - OptEx $0.00 -22.5K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Class A Common Stock 2023-07-03 M A 22,500 $1.77 72,501 D — —
2 Common Class A Common Stock 2023-07-03 S D 22,500 $15.00 50,001 D — —
3 Derivative Stock Option 2023-07-03 M D 22,500 $0.00 0 D $1.77 · — to 2028-01-24 22,500 Class A Common Stock (F3) Due to an administrative error, the reporting person's previous Form 4 filed on March 13, 2023 reflected an incorrect amount of zero for number of derivative securities beneficially owned following reported transaction(s) in Column 9 rather than 22,500. This filing corrects that error. (F2) The option was fully vested and exercisable.