Haiping Dun - Nov 14, 2023 Form 4 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
Nov 14, 2023
Transactions value $
-$6
Form type
4
Date filed
11/16/2023, 04:15 PM
Previous filing
Aug 24, 2023
Next filing
Nov 27, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACMR Class A Common Stock Options Exercise $17.5K +35K +4.09% $0.50* 890K Nov 14, 2023 Direct F1
transaction ACMR Class A Common Stock Tax liability -$17.5K -1.02K -0.11% $17.23 889K Nov 14, 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 -35K -17.5% $0.00 165K Nov 14, 2023 Class A Common Stock 35K $0.50 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On November 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 35,000 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 1,016 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 November 14, 2023 of $17.23, and issuing to the reporting person the remaining 33,984 shares of Class A Common Stock.
F2 The option is fully vested and exercisable.