Form 4 for ACMR ACM Research, Inc.
Accepted 2025-08-26 00:00:00 ET · period of report 2025-08-22 · accession 0001140361-25-032733 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2025-08-26 | 2025-08-22 | ACMR | Cheav Sotheara | See remarks | S - Sale+OE | $30.00 | -11.2K | 100.0K | -10% | -$334.6K |
| DT | 2025-08-26 | 2025-08-22 | ACMR | Cheav Sotheara | See remarks | M - OptEx | $13.89 | +11.2K | 111.2K | +11% | +$154.9K |
| DT | 2025-08-26 | 2025-08-22 | ACMR | Cheav Sotheara | See remarks | M - OptEx | $0.00 | -11.2K | 66.2K | -14% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Class A Common Stock | 2025-08-22 | S | D | 11,152 | $30.00 | 100,002 | D | — | — | |
| 2 | Common | Class A Common Stock | 2025-08-22 | M | A | 11,152 | $13.89 | 111,154 | D | — | — | |
| 3 | Derivative | Stock Option | 2025-08-22 | M | D | 11,152 | $0.00 | 66,250 | D | $13.89 · — to 2033-08-09 | 11,152 Class A Common Stock | (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. |