ACM Research, Inc.

Other Events

Other Events

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Other Events

Submission of Matters to a Vote of Security Holders

Other Events

Other Events

Other Events

Entry into a Material Definitive Agreement

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Definitive Proxy Statement

Other Events

Other Events

Other Events

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Annual report pursuant to Section 13 or 15(d)

Results of Operations and Financial Condition

Other Events

Other Events

Other Events

Other Events

Results of Operations and Financial Condition

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Automatic Shelf Registration

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Correspondence with the SEC

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Required Information in Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Notification of late filing of Form 10-K

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

General form for quarterly reports under Section 13 or 15(d)

Letter from the SEC

Correspondence with the SEC

General form for quarterly reports under Section 13 or 15(d)

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Required Information in Proxy Statement

Required Information in Proxy Statement

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d) (amendment)

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Withdrawal of a registration statement

Registration (IPO) statement under Securities Act of 1933

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Letter from the SEC

Correspondence with the SEC

Definitive Proxy Statement

Letter from the SEC

Notice of Effectiveness

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Letter from the SEC

Registration statement under Securities Act of 1933

Required Information in Proxy Statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement with Pricing Information

No description available

Amended Initial Registration Statement

Notice of Effectiveness

Registration of Securities on Exchange

Correspondence with the SEC

Correspondence with the SEC

Wang David H

Wang David H

Wang David H

Liu Tracy

Pappis Charles C

Dun Haiping

McKechnie Mark

Dun Haiping

McKechnie Mark

Dun Haiping

Wang David H

Cheav Sotheara

Cheav Sotheara

Wang David H

Wang David H

Cheav Sotheara

Wang David H

Dun Haiping

Dun Haiping