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ACMR · Current Report (Form 8-K) · Filed June 12, 2026

Acm Research Inc — Current Report (Form 8-K)

Form
8-K
Filed
June 12, 2026
Period
Jun 10, 2026
Ticker
ACMR
Accession
0001628280-26-042833
Boardroom Alpha · Filing insights

Four directors elected to the board; Ernst & Young Hua Ming LLP ratified as 2026 independent auditor.

About Acm Research Inc
Market cap
$5.6B
1Y TSR
+195.9%
3Y TSR
+77.9%
Board grade
A
Sector
Technology
CEO
David H Wang
Last annual meeting: Jun 10, 2026 · View full Acm Research Inc profile →
acmr-20260610

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)
Delaware001-3827394-3290283
(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:
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-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 classTrading symbolName of each exchange on which registered
Class A Common Stock, par value $0.0001 per shareACMRThe 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
2


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
3
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Reference

Frequently asked questions

When did Acm Research Inc file this 8-K?
Acm Research Inc (ACMR) filed this Current Report (Form 8-K) with the SEC on June 12, 2026. The accession number assigned by EDGAR is 0001628280-26-042833.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Four directors elected to the board; Ernst & Young Hua Ming LLP ratified as 2026 independent auditor. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Acm Research Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Acm Research Inc has filed under CIK 1680062, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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