Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001447228-24-000008
Filing Date
2024-02-14
Accepted
2024-02-14 16:06:57
Documents
1

Document Format Files

Seq Description Document Type Size
1 YIHENGACMR13GA2 yihengacmr13ga2.htm SC 13G/A 53101
  Complete submission text file 0001447228-24-000008.txt   54878
Mailing Address 101 CALIFORNIA STREET SUITE 2880 San Francisco CA 94111
Business Address 101 CALIFORNIA STREET SUITE 2880 San Francisco CA 94111 415-582-6306
Yiheng Capital Management, L.P. (Filed by) CIK: 0001447228 (see all company filings)

EIN.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A

Mailing Address 42307 OSGOOD ROAD, SUITE I FREMONT CA 94539
Business Address 42307 OSGOOD ROAD, SUITE I FREMONT CA 94539 510-445-3700
ACM Research, Inc. (Subject) CIK: 0001680062 (see all company filings)

EIN.: 000000000 | State of Incorp.: CA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-91511 | Film No.: 24637921
SIC: 3559 Special Industry Machinery, NEC
(CF Office: 06 Technology)