Haiping Dun - 09 Mar 2023 Form 4 Insider Report for ACM Research, Inc. (ACMR)

Role
Director
Signature
/s/ Mark McKechnie, Attorney-in-Fact for Haiping Dun
Issuer symbol
ACMR
Transactions as of
09 Mar 2023
Net transactions value
-$4.88
Form type
4
Filing time
13 Mar 2023, 21:02:03 UTC
Previous filing
02 Dec 2022
Next filing
20 Mar 2023
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACMR Class A Common Stock Options Exercise $18,750 +37,500 +4.2% $0.5000* 928,120 09 Mar 2023 Direct F1
transaction ACMR Class A Common Stock Tax liability $18,755 -1,504 -0.16% $12.47 926,616 09 Mar 2023 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ACMR Stock Option Options Exercise $0 -37,500 -14% $0.000000 237,501 09 Mar 2023 Class A Common Stock 37,500 $0.5000 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On March 9, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 37,500 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 1,504 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on March 8, 2023 of $12.47, and issuing to the reporting person the remaining 35,996 shares of Class A Common Stock.
F2 The option is fully vested and exercisable.