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 |
| 2025-03-17 Sale |
2025-03-19 9:30 pm |
ACM Research Inc. | ACMR | Hu Chenming Director |
163,308 | $30 | $4,899,240 | 100,002 (Direct) |
View |
| 2025-03-14 Sale |
2025-03-18 9:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
9,518 | $29 | $275,976 | 855,090 (Indirect Direct) |
View |
| 2025-03-12 Sale |
2025-03-14 9:30 pm |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $27.42 | $411,300 | 15,900 (Direct) |
View |
| 2025-03-11 Sale |
2025-03-13 9:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
131,250 | $27.02 | $3,546,554 | 1,618,548 (Indirect Direct) |
View |
| 2025-03-10 Sale |
2025-03-12 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
15,001 | $26.54 | $398,127 | 864,608 (Indirect Direct) |
View |
| 2025-02-06 Sale |
2025-02-10 4:32 pm |
ACM Research Inc. | ACMR | Cheav Sotheara See remarks |
22,598 | $23 | $519,754 | 267,404 (Direct) |
View |
| 2025-02-06 Sale |
2025-02-10 4:30 pm |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $22 | $330,000 | 30,900 (Direct) |
View |
| 2024-11-29 Sale |
2024-12-03 4:32 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
19,058 | $17.43 | $332,181 | 855,090 (Indirect Direct) |
View |
| 2024-11-29 Sale |
2024-12-03 4:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
56,250 | $17.44 | $981,000 | 1,543,846 (Indirect Direct) |
View |
| 2024-11-26 Sale |
2024-11-29 4:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
56,250 | $17.89 | $1,006,087 | 1,600,096 (Indirect Direct) |
View |
| 2024-11-22 Sale |
2024-11-26 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
15,000 | $19.12 | $286,800 | 874,148 (Indirect Direct) |
View |
| 2024-11-22 Sale |
2024-11-26 4:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
56,250 | $19.08 | $1,073,250 | 1,656,346 (Indirect Direct) |
View |
| 2024-10-04 Sale |
2024-10-08 9:37 pm |
ACM Research Inc. | ACMR | Shanghai Science & Technology Venture Capital (Group) Co. Ltd. Shanghai Pudong Science & Technology Investment Group Co. Ltd. Possible member of 10% group 10% Owner |
1,065,396 | $22.08 | $23,519,660 | 5,697,238 (Indirect Direct) |
View |
| 2024-10-04 Sale |
2024-10-08 9:30 pm |
ACM Research Inc. | ACMR | Xing Xiao Director |
1,065,396 | $22.07 | $23,516,561 | 2,338,510 (Indirect) |
View |
| 2024-10-04 Sale |
2024-10-08 4:31 pm |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
16,516 | $22 | $363,352 | 45,900 (Direct) |
View |
| 2024-10-01 Sale |
2024-10-03 9:58 pm |
ACM Research Inc. | ACMR | Shanghai Science & Technology Venture Capital (Group) Co. Ltd. Shanghai Pudong Science & Technology Investment Group Co. Ltd. Possible member of 10% group 10% Owner |
34,604 | $20.05 | $693,921 | 6,762,634 (Indirect Direct) |
View |
| 2024-10-01 Sale |
2024-10-03 4:30 pm |
ACM Research Inc. | ACMR | Xing Xiao Director |
34,604 | $20.05 | $693,921 | 3,403,906 (Indirect) |
View |
| 2024-08-29 Sale |
2024-09-03 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
19,097 | $18.08 | $345,274 | 855,090 (Indirect Direct) |
View |
| 2024-08-22 Sale |
2024-08-26 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
15,000 | $19.85 | $297,750 | 874,187 (Indirect Direct) |
View |
| 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 |
| 2024-06-06 Sale |
2024-06-07 9:30 pm |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
20,000 | $22.92 | $458,400 | 62,416 (Direct) |
View |
| 2024-05-29 Sale |
2024-05-31 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
19,239 | $22.63 | $435,379 | 855,090 (Direct) |
View |
| 2024-05-29 Sale |
2024-05-31 4:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
86,090 | $22.62 | $1,947,356 | 1,449,858 (Indirect Direct) |
View |
| 2024-05-22 Sale |
2024-05-24 4:30 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
90,000 | $22.81 | $2,052,900 | 1,535,948 (Indirect Direct) |
View |
| 2024-05-22 Sale |
2024-05-24 4:30 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
15,000 | $22.88 | $343,200 | 874,329 (Direct) |
View |
| 2024-03-14 Sale |
2024-03-15 9:32 pm |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
87,089 | $27.62 | $2,405,050 | 1,449,858 (Indirect Direct) |
View |
| 2024-03-14 Sale |
2024-03-15 9:32 pm |
ACM Research Inc. | ACMR | Dun Haiping Director |
19,434 | $27.7 | $538,376 | 855,090 (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 |
| 2025-03-12 Exercise |
2025-03-14 9:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $5.6 | 15,900 (Direct) |
View |
| 2025-03-12 Exercise |
2025-03-14 9:30 pm |
N/A 2029-04-22 |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $0 | 15,900 (Direct) |
View |
| 2025-03-03 Exercise |
2025-03-05 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
25,001 | $0.5 | 879,609 (Direct) |
View |
| 2025-03-03 Exercise |
2025-03-05 4:30 pm |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Dun Haiping Director |
25,001 | $0 | 879,609 (Direct) |
View |
| 2025-03-03 Tax Withholding |
2025-03-05 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
482 | $25.94 | 879,609 (Direct) |
View |
| 2025-03-03 Exercise |
2025-03-05 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
210,000 | $0.5 | 1,749,798 (Direct) |
View |
| 2025-03-03 Exercise |
2025-03-05 4:30 pm |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
210,000 | $0 | 1,749,798 (Direct) |
View |
| 2025-03-03 Tax Withholding |
2025-03-05 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
4,048 | $25.94 | 1,749,798 (Direct) |
View |
| 2025-02-06 Exercise |
2025-02-10 4:32 pm |
N/A N/A |
ACM Research Inc. | ACMR | Cheav Sotheara See remarks |
22,598 | $13.89 | 267,404 (Direct) |
View |
| 2025-02-06 Exercise |
2025-02-10 4:32 pm |
N/A 2033-08-09 |
ACM Research Inc. | ACMR | Cheav Sotheara See remarks |
22,598 | $0 | 267,404 (Direct) |
View |
| 2025-02-06 Exercise |
2025-02-10 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $5.6 | 30,900 (Direct) |
View |
| 2025-02-06 Exercise |
2025-02-10 4:30 pm |
N/A 2029-04-22 |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
15,000 | $0 | 30,900 (Direct) |
View |
| 2024-11-14 Exercise |
2024-11-18 4:32 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0.5 | 914,149 (Direct) |
View |
| 2024-11-14 Tax Withholding |
2024-11-18 4:32 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
942 | $18.59 | 914,149 (Direct) |
View |
| 2024-11-14 Exercise |
2024-11-18 4:32 pm |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0 | 914,149 (Direct) |
View |
| 2024-11-14 Exercise |
2024-11-18 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
270,000 | $0.5 | 1,922,596 (Direct) |
View |
| 2024-11-14 Tax Withholding |
2024-11-18 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
7,262 | $18.59 | 1,922,596 (Direct) |
View |
| 2024-11-14 Exercise |
2024-11-18 4:30 pm |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
270,000 | $0 | 1,922,596 (Direct) |
View |
| 2024-10-04 Exercise |
2024-10-08 4:31 pm |
N/A N/A |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
16,516 | $5.6 | 45,900 (Direct) |
View |
| 2024-10-04 Exercise |
2024-10-08 4:31 pm |
N/A 2029-04-22 |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
16,516 | $0 | 45,900 (Direct) |
View |
| 2024-09-21 Option Award |
2024-09-24 4:30 pm |
N/A 2030-07-27 |
ACM Research Inc. | ACMR | Chen Fuping See remarks |
30,000 | $0 | 30,000 (Direct) |
View |
| 2024-08-12 Option Award |
2024-08-20 9:00 pm |
N/A 2034-08-11 |
ACM Research Inc. | ACMR | Liu Tracy Director |
20,000 | $0 | 20,000 (Direct) |
View |
| 2024-08-12 Option Award |
2024-08-20 9:00 pm |
N/A 2034-08-11 |
ACM Research Inc. | ACMR | Dun Haiping Director |
20,000 | $0 | 20,000 (Direct) |
View |
| 2024-08-12 Option Award |
2024-08-20 9:00 pm |
N/A 2034-08-11 |
ACM Research Inc. | ACMR | Hu Chenming Director |
20,000 | $0 | 20,000 (Direct) |
View |
| 2024-08-14 Tax Withholding |
2024-08-16 9:02 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
903 | $19.38 | 949,188 (Direct) |
View |
| 2024-08-14 Exercise |
2024-08-16 9:02 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0.5 | 949,188 (Direct) |
View |
| 2024-08-14 Exercise |
2024-08-16 9:02 pm |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0 | 949,188 (Direct) |
View |
| 2024-06-27 Gift |
2024-07-01 4:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
400,000 | $0 | 400,000 (Direct) |
View |
| 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 |
| 2024-06-06 Exercise |
2024-06-07 9:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
14,016 | $4.62 | 62,416 (Direct) |
View |
| 2024-06-06 Exercise |
2024-06-07 9:30 pm |
N/A N/A |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
5,984 | $5.6 | 62,416 (Direct) |
View |
| 2024-06-06 Exercise |
2024-06-07 9:30 pm |
N/A 2028-07-31 |
ACM Research Inc. | ACMR | McKechnie Mark See Remarks |
20,000 | $0 | 62,416 (Direct) |
View |
| 2024-05-14 Exercise |
2024-05-16 09:00 am |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
180,000 | $0.5 | 2,105,948 (Direct) |
View |
| 2024-05-14 Tax Withholding |
2024-05-16 09:00 am |
N/A N/A |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
3,910 | $23.02 | 2,105,948 (Direct) |
View |
| 2024-05-14 Exercise |
2024-05-16 09:00 am |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner |
180,000 | $0 | 2,105,948 (Direct) |
View |
| 2024-05-14 Exercise |
2024-05-16 09:00 am |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0.5 | 984,330 (Direct) |
View |
| 2024-05-14 Tax Withholding |
2024-05-16 09:00 am |
N/A N/A |
ACM Research Inc. | ACMR | Dun Haiping Director |
761 | $23.02 | 984,330 (Direct) |
View |
| 2024-05-14 Exercise |
2024-05-16 09:00 am |
N/A 2025-04-30 |
ACM Research Inc. | ACMR | Dun Haiping Director |
35,000 | $0 | 984,330 (Direct) |
View |