McKechnie Mark 4

4 · ACM Research, Inc. · Filed Dec 8, 2025

Form 4

Period: 2025-12-04

See Remarks

Transactions

Exercise/Conversion
Class A Common Stock
2025-12-04$4.55/sh+8,750$39,813→ 9,650 total
Sale
Class A Common Stock
2025-12-04$33.50/sh−7,754$259,759→ 1,896 total
Sale
Class A Common Stock
2025-12-04$34.26/sh−996$34,123→ 900 total
Exercise/Conversion
Class A Common Stock
2025-12-08$25.45/sh+22,500$572,625→ 23,400 total
Sale
Class A Common Stock
2025-12-08$35.45/sh−22,500$797,625→ 900 total
Exercise/Conversion
Stock Option
2025-12-04−8,750→ 0 total
Exercise: $4.55Exp: 2029-11-03→ Class A Common Stock (8,750 underlying)
Exercise/Conversion
Stock Option
2025-12-08−22,500→ 0 total
Exercise: $25.45Exp: 2032-03-03→ Class A Common Stock (22,500 underlying)

Footnotes (4)

[F1]The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 27, 2025.
[F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.07 to $34.04, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) and (3) to this Form 4.
[F3]The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.26 to $34.27, inclusive.
[F4]The option is fully vested and exercisable.

Documents

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