4//SEC Filing
Cheav Sotheara 4
Accession 0001140361-25-035583
CIK 0001680062other
Filed
Sep 18, 8:00 PM ET
Accepted
Sep 19, 4:30 PM ET
Size
8.6 KB
Accession
0001140361-25-035583
Insider Transaction Report
Form 4
Cheav Sotheara
See remarks
Transactions
- Sale
Class A Common Stock
2025-09-18$35.00/sh−10,000$350,000→ 100,002 total - Exercise/Conversion
Class A Common Stock
2025-09-18$13.89/sh+10,000$138,900→ 110,002 total - Exercise/Conversion
Stock Option
2025-09-18−10,000→ 56,250 totalExercise: $13.89Exp: 2033-08-09→ Class A Common Stock (10,000 underlying)
Footnotes (3)
- [F1]On September 18, 2025, the reporting person exercised a previously issued stock option to purchase 10,000 shares of Class A Common Stock of the Issuer.
- [F2]The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 15, 2025.
- [F3]The option will vest and become exercisable as to 7,500 shares on May 15, 2026 and the remaining 22,500 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. option is fully vested and exercisable.
Documents
Issuer
ACM Research, Inc.
CIK 0001680062
Entity typeother
Related Parties
1- filerCIK 0001721279
Filing Metadata
- Form type
- 4
- Filed
- Sep 18, 8:00 PM ET
- Accepted
- Sep 19, 4:30 PM ET
- Size
- 8.6 KB