ACM Research, Inc. 10-Q

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds Recent Sales of Unregistered Equity Securities In the three months ended March 31, 2022, we issued, pursuant to the exercise of stock options at a per share exercise price of $0.75 per share, an aggregate of 134,085 shares of Class A common stock that were not registered under the Securities Act of 1933. We believe the offer and sale of those shares were exempt from registration under the Securities Act of 1933 by virtue of Section 4(a)(2) thereof (or Regulation D promulgated thereunder) because they did not involve a public offering. The recipients of the shares acquired the securities for investment only and not with a view to or for sale in connection with any distribution thereof, and appropriate legends were recorded with respect to the shares. The recipients of the shares were accredited investors under Rule 501 of Regulation D. Sale Date Exercised Shares (Net) January 3, 2022 39,645 March 2, 2022 36,807 March 3, 2022 39,633 March 14, 2021 18,000 134,085 Item 6. Exhibits The following exhibits are filed as part of this report: 43 Table of Contents Exhibit No. Description 31.01 Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.02 Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 32.01 Certification of Principal Executive Officer and Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 101.INS Inline XBRL Instance Document (the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document) 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 104 Cover Page Interactive Data File (formatted as inline XBRL and contained in exhibit 101) 44 Table of Contents SIGNATURES 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, thereunto duly authorized. ACM RESEARCH, INC. Date: May 9, 2022 By: /s/ Mark McKechnie Mark McKechnie Chief Financial Officer, Executive Vice President and Treasurer (Principal Financial Officer) 45