Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-04-17 Sale | 2026-04-21 4:30 pm | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $52 | $260,000 | 0 (Direct) | View |
| 2026-03-05 Sale | 2026-03-09 4:30 pm | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $50.09 | $250,450 | 5,000 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-08-12 Option Award | 2026-08-26 9:30 pm | N/A 2036-08-11 | ACM Research Inc. | ACMR | Pappis Charles C Director | 7,128 | $0 | 7,128 (Direct) | View |
| 2026-04-17 Exercise | 2026-04-21 4:30 pm | N/A 2035-03-14 | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $0 | 0 (Direct) | View |
| 2026-04-17 Exercise | 2026-04-21 4:30 pm | N/A N/A | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $29.18 | 0 (Direct) | View |
| 2026-03-05 Exercise | 2026-03-09 4:30 pm | N/A 2035-03-14 | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2026-03-05 Exercise | 2026-03-09 4:30 pm | N/A N/A | ACM Research Inc. | ACMR | Pappis Charles C Director | 5,000 | $29.18 | 5,000 (Direct) | View |
| 2025-08-12 Option Award | 2025-08-14 4:30 pm | N/A 2035-08-11 | ACM Research Inc. | ACMR | Pappis Charles C Director | 20,000 | $0 | 20,000 (Direct) | View |
| 2025-03-15 Option Award | 2025-05-21 9:32 pm | N/A 2035-03-14 | ACM Research Inc. | ACMR | Pappis Charles C Director | 10,000 | $0 | 10,000 (Direct) | View |