Mark McKechnie - Sep 1, 2023 Form 4 Insider Report for ACM Research, Inc. (ACMR)

Signature
/s/ Mark McKechnie
Stock symbol
ACMR
Transactions as of
Sep 1, 2023
Transactions value $
-$403,500
Form type
4
Date filed
9/5/2023, 09:30 PM
Previous filing
Aug 21, 2023
Next filing
Oct 13, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACMR Class A Common Stock Options Exercise $137K +30K +3333.33% $4.55 30.9K Sep 1, 2023 Direct
transaction ACMR Class A Common Stock Sale -$540K -30K -97.09% $18.00 900 Sep 1, 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 -30K -50% $0.00 30K Sep 1, 2023 Class A Common Stock 30K $4.55 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 25, 2022.
F2 The option vested and became exercisable as to 15,000 shares on November 4, 2020 and the remaining 45,000 shares vest and became or become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

Remarks:

Chief Financial Officer and Treasurer