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

Role
Director
Signature
/s/ Mark L. Johnson, Attorney-in-Fact for Haiping Dun
Issuer symbol
ACMR
Transactions as of
18 May 2022
Net transactions value
-$1.5
Form type
4
Filing time
20 May 2022, 21:50:28 UTC
Previous filing
11 Mar 2022
Next filing
31 May 2022
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 +4.4% $0.5000* 892,590 18 May 2022 Direct F1
transaction ACMR Class A Common Stock Tax liability $18,752 -1,350 -0.15% $13.89 891,240 18 May 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 -37,500 -8.1% $0.000000 425,001 18 May 2022 Class A Common Stock 37,500 $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.