Haiping Dun - May 18, 2022 Form 4 Insider Report for ACM Research, Inc. (ACMR)

Role
Director
Signature
/s/ Mark L. Johnson, Attorney-in-Fact for Haiping Dun
Stock symbol
ACMR
Transactions as of
May 18, 2022
Transactions value $
-$2
Form type
4
Date filed
5/20/2022, 09:50 PM
Previous filing
Mar 11, 2022
Next filing
May 31, 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACMR Class A Common Stock Options Exercise $18.8K +37.5K +4.39% $0.50* 893K May 18, 2022 Direct F1
transaction ACMR Class A Common Stock Tax liability -$18.8K -1.35K -0.15% $13.89 891K May 18, 2022 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 -37.5K -8.11% $0.00 425K May 18, 2022 Class A Common Stock 37.5K $1.50 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On May 18, 2022, 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 1,350 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 17, 2022 of $13.89, and issuing to the reporting person the remaining 36,150 shares of Class A Common Stock.
F2 The option is fully vested and exercisable.