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 |
| 2023-09-12 Sale | 2023-09-14 5:00 pm | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 175,116 | $17.87 | $3,130,016 | 1,449,858 (Indirect Direct) | View |
| 2023-09-01 Sale | 2023-09-05 9:30 pm | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 30,000 | $18 | $540,000 | 30,900 (Direct) | View |
| 2023-08-23 Sale | 2023-08-25 5:46 pm | ACM Research Inc. | ACMR | Chen Fuping See remarks | 105,000 | $15 | $1,575,000 | 141,165 (Direct) | View |
| 2023-08-22 Sale | 2023-08-24 8:13 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 32,098 | $13.85 | $444,557 | 855,090 (Direct) | View |
| 2023-07-03 Sale | 2023-07-05 6:52 pm | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $15 | $337,500 | 50,001 (Direct) | View |
| 2023-06-06 Sale | 2023-06-08 9:49 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 39,000 | $10 | $390,000 | 136,002 (Direct) | View |
| 2023-06-01 Sale | 2023-06-05 6:26 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $10 | $375,000 | 887,188 (Direct) | View |
| 2023-03-16 Sale | 2023-03-20 8:55 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $12.06 | $452,250 | 889,116 (Direct) | View |
| 2023-03-09 Sale | 2023-03-13 9:00 pm | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $12.37 | $278,351 | 50,001 (Direct) | View |
| 2022-11-30 Sale | 2022-12-02 5:31 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 35,327 | $8.43 | $297,807 | 890,620 (Direct) | View |
| 2022-08-22 Sale | 2022-08-24 9:01 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 36,537 | $16.1 | $588,246 | 855,090 (Direct) | View |
| 2022-08-18 Sale | 2022-08-22 8:00 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 10,000 | $17.5 | $175,000 | 110,002 (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 |
| 2023-09-04 Exercise | 2023-09-06 9:40 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0.5 | 2,644,974 (Direct) | View |
| 2023-09-04 Exercise | 2023-09-06 9:40 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0 | 2,644,974 (Direct) | View |
| 2023-09-04 Tax Withholding | 2023-09-06 9:40 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 4,884 | $18.43 | 2,644,974 (Direct) | View |
| 2023-09-01 Exercise | 2023-09-05 9:30 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 30,000 | $4.55 | 30,900 (Direct) | View |
| 2023-09-01 Exercise | 2023-09-05 9:30 pm | N/A 2029-11-03 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 30,000 | $0 | 30,900 (Direct) | View |
| 2023-08-23 Exercise | 2023-08-25 5:46 pm | N/A N/A | ACM Research Inc. | ACMR | Chen Fuping See remarks | 8,835 | $1.77 | 141,165 (Direct) | View |
| 2023-08-23 Exercise | 2023-08-25 5:46 pm | N/A 2026-12-27 | ACM Research Inc. | ACMR | Chen Fuping See remarks | 105,000 | $0 | 141,165 (Direct) | View |
| 2023-08-23 Exercise | 2023-08-25 5:46 pm | N/A N/A | ACM Research Inc. | ACMR | Chen Fuping See remarks | 96,165 | $1 | 141,165 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:19 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Dun Haiping Director | 54,000 | $0 | 54,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:19 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Wang David H See remarks 10% Owner | 1,080,000 | $0 | 1,080,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:19 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 300,000 | $0 | 300,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:19 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Liu Tracy Director | 54,000 | $0 | 54,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:18 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Xing Xiao Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:18 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Hu Chenming Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:18 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 100,000 | $0 | 100,000 (Direct) | View |
| 2023-08-10 Option Award(A) | 2023-08-21 9:18 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 100,000 | $0 | 100,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:31 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Dun Haiping Director | 54,000 | $0 | 54,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:31 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 100,000 | $0 | 100,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 100,000 | $0 | 100,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Wang David H See remarks 10% Owner | 1,080,000 | $0 | 1,080,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 300,000 | $0 | 300,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Liu Tracy Director | 54,000 | $0 | 54,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Hu Chenming Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2023-08-10 Option Award | 2023-08-14 5:30 pm | N/A 2033-08-09 | ACM Research Inc. | ACMR | Xing Xiao Director | 24,000 | $0 | 24,000 (Direct) | View |
Ownership(A) | 2023-07-18 08:53 am | N/A N/A | ACM Research Inc. | ACM | Shanghai Science & Technology Venture Capital (Group) Co. Ltd. Shanghai Pudong Science & Technology Investment Group Co. Ltd. Possible member of 10% group 10% Owner | 0 | $0 | 6,797,238 (Direct) | View |
| 2023-07-03 Exercise | 2023-07-05 6:52 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $1.77 | 50,001 (Direct) | View |
| 2023-07-03 Exercise | 2023-07-05 6:52 pm | N/A 2028-01-24 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $0 | 50,001 (Direct) | View |
Ownership | 2023-06-13 5:32 pm | N/A N/A | 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 | 0 | $0 | 6,797,238 (Direct) | View |
| 2022-06-06 Exercise | 2023-06-08 9:49 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 39,000 | $0 | 136,002 (Direct) | View |
| 2023-06-06 Exercise | 2023-06-08 9:49 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 22,500 | $4.62 | 136,002 (Direct) | View |
| 2023-06-06 Exercise | 2023-06-08 9:49 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 16,500 | $5.33 | 136,002 (Direct) | View |
| 2023-05-22 Exercise | 2023-05-24 6:33 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,124,689 (Direct) | View |
| 2023-05-22 Tax Withholding | 2023-05-24 6:33 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 1,928 | $9.73 | 1,124,689 (Direct) | View |
| 2023-05-22 Exercise | 2023-05-24 6:33 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,124,689 (Direct) | View |
| 2023-03-09 Exercise | 2023-03-13 9:02 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,164,117 (Direct) | View |
| 2023-03-09 Exercise | 2023-03-13 9:02 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,164,117 (Direct) | View |
| 2023-03-09 Tax Withholding | 2023-03-13 9:02 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 1,504 | $12.47 | 1,164,117 (Direct) | View |
| 2023-03-09 Exercise | 2023-03-13 9:00 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $1.77 | 50,001 (Direct) | View |
| 2023-03-09 Exercise | 2023-03-13 9:00 pm | N/A 2028-01-24 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $0 | 50,001 (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 |
| 2022-12-30 Option Award(A) | 2023-02-14 6:18 pm | N/A 2032-03-03 | ACM Research Inc. | ACMR | Chen Fuping See remarks | 3,000 | $0 | 3,000 (Direct) | View |
| 2022-12-30 Option Award | 2023-01-04 6:09 pm | N/A 2032-03-03 | ACM Research Inc. | ACMR | Chen Fuping See remarks | 13,500 | $0 | 13,500 (Direct) | View |
| 2022-12-31 Option Award | 2023-01-04 6:09 pm | N/A 2032-03-03 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 22,500 | $0 | 22,500 (Direct) | View |
| 2022-12-28 Option Award | 2022-12-30 9:30 pm | N/A 2032-03-03 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 22,500 | $0 | 22,500 (Direct) | View |
| 2022-11-22 Exercise | 2022-11-25 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,200,948 (Direct) | View |
| 2022-11-22 Tax Withholding | 2022-11-25 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 2,173 | $8.63 | 1,200,948 (Direct) | View |
| 2022-11-22 Exercise | 2022-11-25 5:30 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,200,948 (Direct) | View |
| 2022-11-14 Exercise | 2022-11-15 9:03 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,203,121 (Direct) | View |
| 2022-11-14 Exercise | 2022-11-15 9:03 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,203,121 (Direct) | View |
| 2022-11-14 Tax Withholding | 2022-11-15 9:03 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 1,970 | $9.52 | 1,203,121 (Direct) | View |