5 Form 4 filings for ACMR between 2026-08-20 and 2026-08-26, from 4 filers. 2 discretionary (1 sales, 1 purchases), 3 routine grant or withholding filings. 2 of 5 state a filing-level total, summing to $4,670,641; the rest report only their largest transaction, so the true figure is higher. Prices ran $6 to $77.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-26 | Pappis Charles C | received | — | — | — | 2 | |
| 2026-08-26 | Liu Tracy | received | — | — | — | 2 | |
| 2026-08-26 | Dun Haiping | received | — | — | — | 2 | |
| 2026-08-21 | McKechnie Mark | sold | 30,365 | $77.45 | $4,264,971 | 5 | |
| 2026-08-20 | Dun Haiping | acquired | 5,000 | $5.60 | $405,670 | 4 | |
| 5 filings · 4 filers · disclosed totals only | $4,670,641 (2/5) | — | |||||