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Ownership Document
|
| Schema Version: X0508 |
| Document Type: 4 |
| Period of Report: 3/14/24 |
| Issuer: |
| Issuer CIK: 1680062 |
| Issuer Name: ACM Research, Inc. |
| Issuer Trading Symbol: ACMR |
| Reporting Owner: |
| Reporting Owner ID: |
| | Owner CIK: 1721581 |
| | Owner Name: Dun Haiping |
| Reporting Owner Address: |
| | Owner Street 1: C/O ACM RESEARCH, INC. |
| | Owner Street 2: 42307 OSGOOD ROAD, SUITE I |
| | Owner City: FREMONT |
| | Owner State: CA |
| | Owner ZIP Code: 94539 |
| | Owner State Description: |
| Reporting Owner Relationship: |
| | Is Director? Yes |
| Aff 10b5 One? Yes |
| Non-Derivative Table: |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Class A Common Stock |
| | Transaction Date: |
| | | Value: 3/14/24 |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: S |
| | | Equity Swap Involved? No |
| | | Footnote ID: F1 |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 15,877 |
| | | Transaction Price Per Share: |
| Value: 27.56 |
| Footnote ID: F2 |
| | | Transaction Acquired-Disposed Code: |
| Value: D |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 858,647 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Class A Common Stock |
| | Transaction Date: |
| | | Value: 3/14/24 |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: S |
| | | Equity Swap Involved? No |
| | | Footnote ID: F1 |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 3,557 |
| | | Transaction Price Per Share: |
| Value: 28.34 |
| Footnote ID: F3 |
| | | Transaction Acquired-Disposed Code: |
| Value: D |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 855,090 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
| Footnotes: |
| Footnote - F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2023. |
| Footnote - F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.03 to $27.88, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4. |
| Footnote - F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.11 to $28.53, inclusive. |
| Owner Signature: |
| Signature Name: /s/ Mark McKechnie, Attorney-in-Fact for Haiping Dun |
| Signature Date: 3/15/24 |
