SEC Form 4 · accession 0001140361-26-027691
ACM Research, Inc. · ACMR
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
David H Wang
Officer — See Remarks · Director · 10% Owner
Period of report
May 13, 2026
Accepted (ET)
Jul 6, 2026 · 9:00 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001680062
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common Stock | holding | — | — | — | 100,002 | I | By Jing Chen, wife of David H. Wang | |
| Class A Common Stock | holding | — | — | — | 45,837 | I | By Sophia Wang, daughter of David H. Wang | |
| Class A Common Stock | holding | — | — | — | 180,000 | I | By David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | |
| Class A Common Stock | holding | — | — | — | 620,001 | I | By Wang-Chen Family Living Trust |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF2,F1,F3 | — | May 13, 2026 | A | 6,208 | A | — | — | Class A Common Stock | 6,208 | 6,208 | I |
Explanation of responses
- F1Each restricted stock unit represents a contingent right to receive one share of ACMR common stock.
- F2The number of RSUs granted will be determined by dividing the applicable annual grant value by the 30-day lookback average fair market value of the Issuer's common stock, determined to be $51.54 per share.
- F3The restricted stock units vest in four equal annual installments beginning May 13, 2027.
Remarks
Chief Executive Officer, President and Director