ACM Research (NASDAQ: ACMR) stockholders elect directors and ratify 2026 auditor

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

ACM Research, Inc. reported the results of its 2026 Annual Meeting of Stockholders held on June 10, 2026. Holders of Class A and Class B shares representing 135,814,497 votes, or 84.32% of total voting power, were present in person or by proxy, establishing a strong quorum.

Stockholders elected four directors to serve until the 2027 annual meeting: David H. Wang, Haiping Dun, Tracy Liu, and Charles Pappis. Each nominee received over 117 million votes "for," with broker non-votes reported separately.

Stockholders also ratified the appointment of Ernst & Young Hua Ming LLP as independent auditor for the fiscal year ending December 31, 2026, with 135,717,653 votes for, 40,635 against, and 56,209 abstaining.

8-K Event Classification

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

1 item

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

Results of a shareholder vote on proposals at an annual or special meeting.

Key Figures

Votes represented: 135,814,497 votes Voting power represented: 84.32% Votes for David H. Wang: 122,956,333 votes +5 more

8 metrics

Votes represented 135,814,497 votes Total votes present at 2026 annual meeting

Voting power represented 84.32% Share of total votes outstanding at meeting

Votes for David H. Wang 122,956,333 votes Director election, Proposal 1

Votes for Haiping Dun 125,995,407 votes Director election, Proposal 1

Votes for Tracy Liu 121,026,446 votes Director election, Proposal 1

Votes for Charles Pappis 117,316,569 votes Director election, Proposal 1

Votes for auditor ratification 135,717,653 votes Ratification of Ernst & Young Hua Ming LLP for 2026

Votes against auditor ratification 40,635 votes Ratification of Ernst & Young Hua Ming LLP for 2026

Key Terms

broker non-votes, independent auditor, proxy statement, Section 14(a) of the Securities Exchange Act of 1934, +2 more

6 terms

broker non-votes financial

"Nominee | For | Withhold | Broker Non-Votes"

Broker non-votes occur when a brokerage firm is unable to vote on a shareholder’s behalf during a company election or decision because the shareholder has not given specific voting instructions, and the broker is not allowed or chooses not to vote on certain matters. They are important because they can affect the outcome of votes, especially when the results are close, by effectively reducing the total number of votes cast.

independent auditor financial

"ratified the appointment of Ernst & Young Hua Ming LLP as our independent auditor"

An independent auditor is an outside, qualified accounting professional or firm that examines a company's financial records and controls to determine whether its financial statements are accurate and prepared according to accepted accounting rules. Like a neutral referee or home inspector, the auditor issues a report that gives investors confidence (or raises red flags) about the reliability of the numbers, which affects assessments of risk, valuation and investment decisions.

proxy statement regulatory

"The board of directors solicited proxies pursuant to a proxy statement that we filed"

A proxy statement is a document companies send to shareholders ahead of a meeting that lays out the items up for a vote—like who will sit on the board, executive pay, and major corporate decisions—and provides background so shareholders can decide how to cast their votes or appoint someone to vote for them. Think of it as an agenda plus a ballot and briefing notes, important because the outcomes can change control, strategy, and value.

Section 14(a) of the Securities Exchange Act of 1934 regulatory

"filed with the Securities and Exchange Commission under Section 14(a) of the Securities Exchange Act of 1934"

Class A common stock financial

"Each share of Class A common stock was entitled to one vote"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

Class B common stock financial

"each share of Class B common stock was entitled to twenty votes"

A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.

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Understanding 8-K Material Events →

06/12/2026 - 04:06 PM

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

Source: View Original Filing on SEC EDGAR

FAQ

What did ACMR stockholders vote on at the 2026 annual meeting?

Stockholders voted on electing four directors and ratifying the independent auditor. They chose David H. Wang, Haiping Dun, Tracy Liu, and Charles Pappis as directors, and approved Ernst & Young Hua Ming LLP as auditor for the fiscal year ending December 31, 2026.

How strong was ACMR’s stockholder turnout at the 2026 annual meeting?

The meeting had significant participation, with 135,814,497 votes represented. This equaled 84.32% of the total votes attributable to all outstanding Class A and Class B shares, indicating a high level of stockholder engagement in voting matters.

Who was elected to ACMR’s board of directors in 2026 and how many votes did they receive?

Four directors were elected: David H. Wang, Haiping Dun, Tracy Liu, and Charles Pappis. Each nominee received more than 117 million votes "for," with separate tallies for withheld votes and broker non-votes disclosed in the results table.

How did ACMR stockholders vote on the ratification of Ernst & Young Hua Ming LLP?

Stockholders strongly supported ratifying Ernst & Young Hua Ming LLP as independent auditor for 2026. The proposal received 135,717,653 votes for, 40,635 votes against, and 56,209 abstentions, confirming the firm’s appointment for the fiscal year.

What voting rights do ACMR Class A and Class B shares have at stockholder meetings?

Each Class A share carries one vote on matters submitted to stockholders, while each Class B share carries twenty votes. Both classes voted together on director elections and auditor ratification at the 2026 annual meeting, reflecting their combined voting power.

When will the newly elected ACMR directors serve until?

Each of the four elected directors will serve until the 2027 Annual Meeting of Stockholders. They will continue in office until that meeting and until their respective successors are duly elected and qualified under the company’s governance structure.

Filing Exhibits & Attachments

3 documents