Haiping Dun - Aug 10, 2023 Form 4/A - Amendment Insider Report for ACM Research, Inc. (ACMR)

Role
Director
Signature
/s/ Mark McKechnie, Attorney-in-Fact for Haiping Dun
Stock symbol
ACMR
Transactions as of
Aug 10, 2023
Transactions value $
$0
Form type
4/A - Amendment
Date filed
8/21/2023, 09:19 PM
Date Of Original Report
Aug 14, 2023
Previous filing
Jun 5, 2023
Next filing
Aug 24, 2023

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 Award $0 -30K -50% $0.00 30K Aug 10, 2023 Class A Common Stock 30K $13.89 Direct F1, F2
transaction ACMR Stock Option Award $0 -24K -50% $0.00 24K Aug 10, 2023 Class A Common Stock 24K $13.89 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4.
F2 The option will vest and become exercisable as to 7,500 shares on August 10, 2024 and the remaining 22,500 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.
F3 The option will vest and become exercisable immediately prior to the 2024 annual meeting of stockholders of the issuer, subject to continued service through the vesting date.