Arkolith/Insider Trading/ACMR/Form 4

McKechnie Mark

See RemarksACM Research, Inc. (ACMR) · full profile →Form 4 · filed Dec 8, 2025
Net Selling
Open-Market Buys
$0
Open-Market Sells
$1.1M
Net Open-Market Flow
-$1.1M
Transactions
7
5 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Dec 8, 2025Option exercise(M)23K$25.45$573K23K
Dec 8, 2025Sell(S)23K$35.45$798K900
Dec 4, 2025Sell(S)996$34.26$34K900
Dec 4, 2025Option exercise(M)9K$4.55$40K10K
Dec 4, 2025Sell(S)8K$33.50$260K2K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Dec 8, 2025Option exercise(M)23K—$00
Dec 4, 2025Option exercise(M)9K—$00

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001140361-25-044909) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML