Chen Fuping

See remarksACM Research, Inc. (ACMR) · full profile →Form 4 · filed Dec 4, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$4.0M
Net Open-Market Flow
-$4.0M
Transactions
7
5 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Dec 3, 2025Option exercise(M)20K$1.77$35K20K
Dec 3, 2025Sell(S)20K$33.05$651K300
Dec 3, 2025Sell(S)300$33.57$10K0
Dec 2, 2025Sell(S)100K$33.20$3.3M0
Dec 2, 2025Option exercise(M)100K$1.77$177K100K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Dec 3, 2025Option exercise(M)20K$021K
Dec 2, 2025Option exercise(M)100K$041K

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001140361-25-044360) within minutes of acceptance. Every field above traces to the original document. Verify it directly: