ACM Research, Inc.|4Nov 14, 4:30 PM ET

Feng Lisa 4

4 · ACM Research, Inc. · Filed Nov 14, 2025

Form 4

Period: 2025-11-12

See remarks

Transactions

Exercise/Conversion
Class A Common Stock
2025-11-12$5.60/sh+15,000$84,000→ 65,001 total
Sale
Class A Common Stock
2025-11-12$32.76/sh−15,000$491,400→ 50,001 total
Exercise/Conversion
Class A Common Stock
2025-11-13$5.60/sh+15,000$84,000→ 65,001 total
Sale
Class A Common Stock
2025-11-13$33.77/sh−15,000$506,550→ 50,001 total
Exercise/Conversion
Stock Option
2025-11-12−15,000→ 15,000 total
Exercise: $5.60Exp: 2029-04-22→ Class A Common Stock (15,000 underlying)
Exercise/Conversion
Stock Option
2025-11-13−15,000→ 0 total
Exercise: $5.60Exp: 2029-04-22→ Class A Common Stock (15,000 underlying)

Footnotes (4)

[F1]On November 12, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer.
[F2]The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 13, 2025.
[F3]On November 13, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer.
[F4]The option is fully vested and exercisable.

Documents

1 file