ACM Research details Shanghai backlog in new filing

ACM Research, Inc. filed a current report to let investors know it issued a press release on September 29, 2025.

Rhea-AI Filing Summary

ACM Research, Inc. filed a current report to let investors know it issued a press release on September 29, 2025. The release, titled “Research’s Operating Subsidiary Research (Shanghai) Provides Backlog Data,” comes from its Shanghai operating subsidiary and is attached to the report as an exhibit.

8-K Event Classification

2 items: 8.01, 9.01

2 items

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did ACMR disclose in this 8-K filing?

ACMR disclosed that it issued a press release on September 29, 2025. The release is titled “Research’s Operating Subsidiary Research (Shanghai) Provides Backlog Data” and is furnished as Exhibit 99.1, giving investors access to additional backlog-related information from its Shanghai subsidiary.

Which ACMR subsidiary is discussed in the September 29, 2025 press release?

The press release focuses on ACM Research’s Shanghai operating subsidiary. It is titled “Research’s Operating Subsidiary Research (Shanghai) Provides Backlog Data,” indicating that the backlog information relates specifically to this Shanghai entity rather than the parent company’s broader operations.

How is the ACMR backlog data press release made available to investors?

The backlog data press release is attached as Exhibit 99.1. ACM Research, Inc. furnished the full text of the release within the 8-K, incorporating it by reference so investors can review the detailed information directly in the filed exhibit.

What is the subject of ACMR’s Exhibit 99.1 dated September 29, 2025?

Exhibit 99.1 is a press release about backlog data from ACMR’s Shanghai subsidiary. The release, dated September 29, 2025, is titled “Research’s Operating Subsidiary Research (Shanghai) Provides Backlog Data” and focuses on backlog-related disclosures for that business.

Who signed ACMR’s September 29, 2025 8-K report?

The 8-K was signed by Mark McKechnie. He signed the report as Chief Financial Officer and Treasurer of ACM Research, Inc., indicating executive-level authorization of the furnished press release and related exhibit.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 09/29/2025 - 08:16 AM EDT Learn about SEC filing dates

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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): September 29, 2025

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 8.01     Other Events.

On September 29, 2025, we issued a press release entitled “ACM Research’s Operating Subsidiary ACM Research (Shanghai) Provides Backlog Data.” The full text of the press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference.

Item 9.01    Financial Statements and Exhibits.

(d)    Exhibits.

Exhibit						Description
99.1 104						Press Release of ACM Research, Inc. dated September 29, 2025 Cover Page Interactive Data File (embedded within the XBRL document)

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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: September 29, 2025

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