Form 8-K ACM Research, Inc. For: Jun 10

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June 12, 2026 4:07 PM EDT

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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): June 10, 2026

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:


o			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o			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

The Nasdaq Stock Market LLC

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 o

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. o

Item 5.07 Submission of Matters to a Vote of Security Holders.

We held our 2026 Annual Meeting of Stockholders on June 10, 2026. The board of directors solicited proxies pursuant to a proxy statement that we filed with the Securities and Exchange Commission under Section 14(a) of the Securities Exchange Act of 1934 on April 27, 2026. There was no solicitation in opposition to the board’s solicitation.

At the meeting, holders of Class A and Class B common stock were asked to consider and vote upon the two proposals set forth below. Each share of Class A common stock was entitled to one vote with respect to each matter submitted to a vote at the meeting, and each share of Class B common stock was entitled to twenty votes with respect to each matter submitted to a vote at the meeting. Shares of Class A and Class B common stock representing 135,814,497 votes, or 84.32% of the total votes attributable to all outstanding shares of Class A and Class B common stock, were present in person or by proxy at the meeting.

The voting results reported below are final.

The matters considered and voted on by the stockholders at the meeting and the votes of the stockholders were as follows:

Proposal 1. Stockholders voted as follows with respect to the election of each of the nominees for director identified in the proxy statement:


Nominee	For	Withhold	Broker Non-Votes
David H. Wang	122,956,333	6,072,472	6,785,692
Haiping Dun	125,995,407	3,033,398	6,785,692
Tracy Liu	121,026,446	8,002,359	6,785,692
Charles Pappis	117,316,569	11,712,236	6,785,692

As a result of this vote, each of the four nominees was elected as a director to serve until the 2027 Annual Meeting of Stockholders and until his or her successor is duly elected and qualified.

Proposal 2. Stockholders ratified the appointment of Ernst & Young Hua Ming LLP as our independent auditor for the fiscal year ending December 31, 2026 by the following vote:


	For	Against	Abstain
Ratification of Appointment of Ernst & Young Hua Ming LLP for 2026	135,717,653	40,635	56,209

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: June 12, 2026

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