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 |
| 2024-10-04 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 |
| 2024-03-13 Sale | 2024-03-15 9:32 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 10,000 | $28.49 | $284,878 | 100,002 (Direct) | View |
| 2024-03-08 Sale | 2024-03-12 9:30 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 15,000 | $30.36 | $455,400 | 874,524 (Direct) | View |
| 2024-03-08 Sale | 2024-03-12 9:30 pm | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 90,000 | $30.36 | $2,731,950 | 1,536,947 (Indirect Direct) | View |
| 2024-02-28 Sale | 2024-03-01 9:32 pm | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $25.2 | $189,000 | 110,001 (Direct) | View |
| 2024-02-28 Sale | 2024-03-01 9:30 pm | ACM Research Inc. | ACMR | Liu Tracy Director | 12,500 | $25.2 | $315,000 | 130,272 (Direct) | View |
| 2024-01-12 Sale | 2024-01-16 4:15 pm | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 10,000 | $22 | $220,000 | 9,650 (Direct) | View |
| 2023-12-26 Sale | 2023-12-28 9:02 pm | ACM Research Inc. | ACMR | Liu Tracy Director | 10,000 | $20 | $200,000 | 142,772 (Direct) | View |
| 2023-12-26 Sale | 2023-12-28 9:00 pm | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $20 | $150,000 | 117,501 (Direct) | View |
| 2023-11-29 Sale | 2023-12-01 4:15 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 18,984 | $17.25 | $327,474 | 855,090 (Direct) | View |
| 2023-11-29 Sale | 2023-12-01 4:15 pm | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 84,776 | $17.14 | $1,452,663 | 1,449,858 (Indirect Direct) | View |
| 2023-11-22 Sale | 2023-11-27 4:30 pm | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 90,000 | $17.68 | $1,590,750 | 1,534,634 (Indirect Direct) | View |
| 2023-11-22 Sale | 2023-11-27 4:24 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 15,000 | $17.66 | $264,900 | 874,074 (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 |
| 2024-11-14 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 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 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 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 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 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 N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 35,000 | $0.5 | 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 |
| 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 |
| 2024-03-01 Exercise | 2024-03-05 9:33 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0.5 | 2,286,947 (Direct) | View |
| 2024-03-01 Exercise | 2024-03-05 9:33 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0 | 2,286,947 (Direct) | View |
| 2024-03-01 Tax Withholding | 2024-03-05 9:33 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 2,911 | $30.92 | 2,286,947 (Direct) | View |
| 2024-03-01 Exercise | 2024-03-05 9:31 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 35,000 | $0.5 | 1,019,525 (Direct) | View |
| 2024-03-01 Exercise | 2024-03-05 9:31 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Dun Haiping Director | 35,000 | $0 | 1,019,525 (Direct) | View |
| 2024-03-01 Tax Withholding | 2024-03-05 9:31 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 566 | $30.92 | 1,019,525 (Direct) | View |
| 2024-02-28 Exercise | 2024-03-01 9:32 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $5.6 | 110,001 (Direct) | View |
| 2024-02-28 Exercise | 2024-03-01 9:32 pm | N/A 2029-04-22 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $0 | 110,001 (Direct) | View |
| 2024-02-28 Exercise | 2024-03-01 9:30 pm | N/A N/A | ACM Research Inc. | ACMR | Liu Tracy Director | 12,500 | $5.6 | 130,272 (Direct) | View |
| 2024-02-28 Exercise | 2024-03-01 9:30 pm | N/A 2029-04-22 | ACM Research Inc. | ACMR | Liu Tracy Director | 12,500 | $0 | 130,272 (Direct) | View |
| 2024-01-12 Exercise | 2024-01-16 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 10,000 | $4.55 | 9,650 (Direct) | View |
| 2024-01-12 Exercise | 2024-01-16 4:15 pm | N/A 2029-11-03 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 10,000 | $0 | 9,650 (Direct) | View |
| 2023-12-26 Exercise | 2023-12-28 9:02 pm | N/A N/A | ACM Research Inc. | ACMR | Liu Tracy Director | 10,000 | $5.6 | 142,772 (Direct) | View |
| 2023-12-26 Exercise | 2023-12-28 9:02 pm | N/A 2029-04-22 | ACM Research Inc. | ACMR | Liu Tracy Director | 10,000 | $0 | 142,772 (Direct) | View |
| 2023-12-26 Exercise | 2023-12-28 9:00 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $5.6 | 117,501 (Direct) | View |
| 2023-12-26 Exercise | 2023-12-28 9:00 pm | N/A 2029-04-22 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 7,500 | $0 | 117,501 (Direct) | View |