# EDGAR Filing Document

**Accession Number:** 0001680062
**File Stem:** 0001140361-25-024198
**Filing Date:** 2025-6
**Character Count:** 5063
**Document Hash:** 1bfabd94ad6b1d2d06eaf58cef6a94cb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-024198.hdr.sgml**: 20250630

**ACCESSION NUMBER**: 0001140361-25-024198

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20250628

**ITEM INFORMATION**: Other Events

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250630

**DATE AS OF CHANGE**: 20250630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ACM Research, Inc.
- **CENTRAL INDEX KEY:** 0001680062
- **STANDARD INDUSTRIAL CLASSIFICATION:** SPECIAL INDUSTRY MACHINERY, NEC [3559]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** CA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38273
- **FILM NUMBER:** 251092026

**BUSINESS ADDRESS:**
- **STREET 1:** 42307 OSGOOD ROAD, SUITE I
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94539
- **BUSINESS PHONE:** 510-445-3700

**MAIL ADDRESS:**
- **STREET 1:** 42307 OSGOOD ROAD, SUITE I
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94539

?xml version='1.0' encoding='ASCII'?

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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 28, 2025**

## ACM Research, Inc.
*(Exact Name of Registrant as Specified in its Charter)*

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

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| | |
|:---|:---|
| **42307 Osgood Road, Suite I** |  |
| **Fremont, California** | **94539**<br>|
| *(Address of Principal Executive Offices)* | *(Zip Code)* |

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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:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading symbol** | **Name of each exchange on which registered** |
| Class A Common Stock, par value $0.0001 per share<br>| ACMR<br>| The Nasdaq Stock Market LLC<br>|

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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:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 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. ☐

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| | |
|:---|:---|
| **Item 8.01** | **Other Events.** |

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On June 28, 2025, ACM Research (Shanghai), Inc. ("ACM Shanghai"), the operating subsidiary of ACM Research, Inc. ("ACM"), announced that it received registration approval from the China Securities Regulatory Commission (the "CSRC") for its proposed private offering of ordinary shares to qualified buyers (the "Private Offering").

The approval permits ACM Shanghai to proceed with the Private Offering within 12 months from the date of approval. As previously disclosed by ACM on January 25, 2024, the proposed Private Offering is for up to 10% of ACM Shanghai's share capital prior to the offering. Based on ACM Shanghai's latest share capital, the number of shares to be offered has been updated to reflect the recent exercise of employee stock options. The Private Offering now provides for the issuance of up to 44.1 million ordinary shares, with expected gross proceeds of up to RMB 4.5 billion (approximately $625 million).

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| | |
|:---|:---|
| **Item 9.01** | **Financial Statements and Exhibits.** |

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&nbsp;&nbsp;&nbsp;&nbsp;**(d)** Exhibits.

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| | |
|:---|:---|
| **Exhibit** | **Description** |
| 104 | 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.

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| | | |
|:---|:---|:---|
|  | ACM RESEARCH, INC. | ACM RESEARCH, INC. |
|  | By: | /s/ Mark McKechnie |
|  |  | Mark McKechnie |
|  |  | Chief Financial Officer and Treasurer |
| Dated: June 30, 2025 |  |  |

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