Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| ACMR | Wang David H | See Remarks | 09/09/2026 | Verkauf | 77.59 | 1,100 | 85,349 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/09/2026 | Verkauf | 76.73 | 4,807 | 368,841 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/09/2026 | Verkauf | 75.58 | 11,666 | 881,716 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/09/2026 | Verkauf | 74.67 | 18,934 | 1,413,802 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/09/2026 | Verkauf | 73.80 | 33,493 | 2,471,783 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/09/2026 | Optionsausübung | 1.00 | 70,000 | 70,000 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/08/2026 | Verkauf | 78.57 | 1,500 | 117,855 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/08/2026 | Verkauf | 78.08 | 12,323 | 962,180 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/08/2026 | Verkauf | 77.15 | 51,374 | 3,963,504 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/08/2026 | Verkauf | 75.99 | 4,803 | 364,980 | Form 4 |
| ACMR | Wang David H | See Remarks | 09/08/2026 | Optionsausübung | 1.00 | 70,000 | 70,000 | Form 4 |
| ACMR | McKechnie Mark | See Remarks | 08/20/2026 | Verkauf | 77.89 | 11,209 | 873,069 | Form 4 |
| ACMR | McKechnie Mark | See Remarks | 08/20/2026 | Verkauf | 77.45 | 30,365 | 2,351,769 | Form 4 |
| ACMR | McKechnie Mark | See Remarks | 08/20/2026 | Verkauf | 76.34 | 13,625 | 1,040,133 | Form 4 |
| ACMR | McKechnie Mark | See Remarks | 08/20/2026 | Optionsausübung | 13.89 | 25,000 | 347,250 | Form 4 |
| ACMR | McKechnie Mark | See Remarks | 08/20/2026 | Optionsausübung | 19.49 | 30,199 | 588,579 | Form 4 |
| ACMR | Dun Haiping | Director | 08/18/2026 | Verkauf | 82.17 | 400 | 32,868 | Form 4 |
| ACMR | Dun Haiping | Director | 08/18/2026 | Verkauf | 81.31 | 3,400 | 276,454 | Form 4 |
| ACMR | Dun Haiping | Director | 08/18/2026 | Verkauf | 80.29 | 1,200 | 96,348 | Form 4 |
| ACMR | Dun Haiping | Director | 08/18/2026 | Optionsausübung | 5.60 | 5,000 | 28,000 | Form 4 |
| ACMR | Charles C Pappis | Director | 04/17/2026 | Verkauf | 52.00 | 5,000 | 260,000 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).