UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): March 3, 2022

ACM Research, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware	001-38273	94-3290283
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

42307 Osgood Road, Suite I
Fremont, California		94539
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (510) 445-3700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading symbol		Name of each exchange on which registered
Class A Common Stock, par value $0.0001 per share		ACMR		Nasdaq Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934: Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01.

Other Events.

On March 3, 2022, we issued a press release announcing the declaration of a stock dividend of (a) two shares of Class A common stock for each share of outstanding Class A common stock and (b) two shares of Class B common stock for each share of outstanding Class B common stock. The stock dividend is payable on March 23, 2022 to holders of record of Class A and Class B common stock at 5:00 p.m., Eastern time, on March 16, 2022. A copy of the press release is attached hereto as Exhibit 99.01 to this report.

Item 9.01.

Financial Statements and Exhibits.

(d)

Exhibits.

Exhibit		Description

99.01		Press Release of ACM Research, Inc. dated March 3, 2022

104		Cover Page Interactive Data File (embedded within the XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

	ACM RESEARCH, INC.

	By:	/s/ Mark McKechnie
		Mark McKechnie
		Chief Financial Officer and Treasurer

Dated: March 3, 2022