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 |
2024-06-10 Sale |
2024-06-12 4:30 pm |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $22.54 | $1,352,676 | 283,158 (Direct) |
View |
2024-06-06 Sale |
2024-06-07 9:32 pm |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $22.5 | $1,349,700 | 403,158 (Direct) |
View |
2020-12-30 Sale |
2020-12-31 5:30 pm |
ACM Research Inc. | ACMR | Wang Jian See remarks |
32,486 | $78 | $2,533,908 | 84,386 (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 |
2024-06-10 Exercise |
2024-06-12 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $4.62 | 283,158 (Direct) |
View |
2024-06-10 Exercise |
2024-06-12 4:30 pm |
N/A 2028-07-31 |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $0 | 283,158 (Direct) |
View |
2024-06-06 Exercise |
2024-06-07 9:32 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $4.62 | 403,158 (Direct) |
View |
2024-06-06 Exercise |
2024-06-07 9:32 pm |
N/A 2028-07-31 |
ACM Research Inc. | ACMR | Wang Jian See remarks |
60,000 | $0 | 403,158 (Direct) |
View |
2023-02-12 Option Award |
2023-02-14 6:20 pm |
N/A 2032-03-03 |
ACM Research Inc. | ACMR | Wang Jian See remarks |
15,000 | $0 | 15,000 (Direct) |
View |
2020-09-09 Exercise |
2020-09-10 7:00 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang Jian See remarks |
33,334 | $1.5 | 116,872 (Direct) |
View |
2020-09-09 Tax Withholding |
2020-09-10 7:00 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang Jian See remarks |
848 | $58.97 | 116,872 (Direct) |
View |
2020-09-09 Exercise |
2020-09-10 7:00 pm |
N/A 2025-05-01 |
ACM Research Inc. | ACMR | Wang Jian See remarks |
33,334 | $0 | 116,872 (Direct) |
View |