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.
"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 |
| 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 |
| 2022-08-16 Sale | 2022-08-18 9:30 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 20,000 | $18.21 | $364,196 | 195,002 (Direct) | View |
| 2022-08-15 Sale | 2022-08-17 6:00 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 36,519 | $19.28 | $704,086 | 1,241,628 (Direct) | View |
| 2022-05-27 Sale | 2022-05-31 9:03 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 36,150 | $15 | $542,250 | 855,090 (Direct) | View |
| 2022-03-09 Sale | 2022-03-11 5:08 pm | ACM Research Inc. | ACMR | Dun Haiping Director | 12,269 | $82.09 | $1,007,102 | 297,530 (Direct) | View |
| 2022-03-09 Sale | 2022-03-11 5:06 pm | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,000 | $64.2 | $320,976 | 14,644 (Direct) | View |
| 2021-11-18 Sale | 2021-11-22 5:00 pm | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,000 | $94.05 | $470,266 | 9,972 (Direct) | View |
| 2021-08-23 Sale | 2021-08-24 9:00 pm | ACM Research Inc. | ACMR | Xiang Yinan Director | 279,765 | $87.52 | $24,484,454 | 1,146,170 (Indirect) | View |
| 2021-08-18 Sale | 2021-08-20 9:00 pm | ACM Research Inc. | ACMR | Xiang Yinan Director | 26,612 | $85.12 | $2,265,303 | 1,425,935 (Indirect) | View |
| 2021-08-19 Sale | 2021-08-20 4:33 pm | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 5,000 | $82.08 | $410,383 | 14,972 (Direct) | View |
| 2021-08-11 Sale | 2021-08-13 8:07 pm | ACM Research Inc. | ACMR | Xiang Yinan Director | 53,623 | $85.75 | $4,598,010 | 1,452,547 (Indirect) | View |
| 2021-04-08 Sale | 2021-04-12 5:30 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 18,111 | $87.2 | $1,579,237 | 58,334 (Direct) | View |
| 2021-03-18 Sale | 2021-03-22 5:30 pm | ACM Research Inc. | ACMR | Wang David H 10% Owner | 99,228 | $91.24 | $9,053,595 | 483,286 (Indirect Direct) | View |
| 2021-03-15 Sale | 2021-03-16 5:31 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 20,000 | $92.68 | $1,853,600 | 93,334 (Direct) | View |
| 2021-03-12 Sale | 2021-03-16 5:31 pm | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 10,028 | $87.89 | $881,361 | 19,972 (Direct) | View |
| 2021-02-12 Sale | 2021-02-16 6:05 pm | ACM Research Inc. | ACMR | Liu Tracy Director | 2,000 | $120 | $240,000 | 36,924 (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 |
| 2022-08-16 Exercise | 2022-08-18 9:30 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 10,000 | $0 | 195,002 (Direct) | View |
| 2022-08-16 Exercise | 2022-08-18 9:30 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 10,000 | $4.62 | 195,002 (Direct) | View |
| 2022-08-15 Exercise | 2022-08-17 6:00 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,241,628 (Direct) | View |
| 2022-08-15 Tax Withholding | 2022-08-17 6:00 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 963 | $19.49 | 1,241,628 (Direct) | View |
| 2022-08-15 Exercise | 2022-08-17 6:00 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,241,628 (Direct) | View |
| 2022-08-12 Option Award | 2022-08-16 6:00 pm | N/A 2032-08-11 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 100,000 | $0 | 100,000 (Direct) | View |
| 2022-08-08 Exercise | 2022-08-10 5:00 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,279,110 (Direct) | View |
| 2022-08-08 Exercise | 2022-08-10 5:00 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,279,110 (Direct) | View |
| 2022-08-08 Tax Withholding | 2022-08-10 5:00 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 981 | $19.13 | 1,279,110 (Direct) | View |
| 2022-06-30 Option Award | 2022-07-13 6:01 pm | N/A 2032-06-29 | ACM Research Inc. | ACMR | Xing Xiao Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2022-06-30 Ownership | 2022-07-13 6:00 pm | N/A N/A | ACM Research Inc. | ACMR | Xing Xiao Director | 0 | $0 | 3,438,510 (Indirect) | View |
| 2022-06-30 Option Award | 2022-07-05 5:32 pm | N/A 2032-06-29 | ACM Research Inc. | ACMR | Hu Chenming Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2022-06-30 Option Award | 2022-07-05 5:31 pm | N/A 2032-06-29 | ACM Research Inc. | ACMR | Liu Tracy Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2022-06-30 Option Award | 2022-07-05 5:31 pm | N/A 2032-06-29 | ACM Research Inc. | ACMR | Dun Haiping Director | 24,000 | $0 | 24,000 (Direct) | View |
| 2022-05-18 Exercise | 2022-05-20 9:50 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0.5 | 1,316,241 (Direct) | View |
| 2022-05-18 Exercise | 2022-05-20 9:50 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 37,500 | $0 | 1,316,241 (Direct) | View |
| 2022-05-18 Tax Withholding | 2022-05-20 9:50 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 1,350 | $13.89 | 1,316,241 (Direct) | View |
| 2022-03-09 Exercise | 2022-03-11 5:08 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 12,269 | $0 | 297,530 (Direct) | View |
| 2022-03-09 Exercise | 2022-03-11 5:08 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 12,269 | $1.5 | 297,530 (Direct) | View |
| 2022-03-09 Exercise | 2022-03-11 5:06 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,300 | $0 | 14,644 (Direct) | View |
| 2022-03-09 Exercise | 2022-03-11 5:06 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,300 | $13.85 | 14,644 (Direct) | View |
| 2022-03-02 Tax Withholding | 2022-03-04 5:26 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 231 | $81.46 | 451,466 (Direct) | View |
| 2022-03-02 Exercise | 2022-03-04 5:26 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Dun Haiping Director | 12,500 | $0 | 451,466 (Direct) | View |
| 2022-03-02 Exercise | 2022-03-04 5:26 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 12,500 | $1.5 | 451,466 (Direct) | View |
| 2021-11-18 Exercise | 2021-11-22 5:00 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,000 | $0 | 9,972 (Direct) | View |
| 2021-11-18 Exercise | 2021-11-22 5:00 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 5,000 | $13.85 | 9,972 (Direct) | View |
| 2021-11-03 Exercise | 2021-11-05 5:47 pm | N/A 2027-11-01 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 2,437 | $0 | 16,667 (Direct) | View |
| 2021-11-03 Exercise | 2021-11-05 5:47 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 2,437 | $5.6 | 16,667 (Direct) | View |
| 2021-09-14 Option Award | 2021-09-16 4:30 pm | 2021-09-14 2030-07-27 | ACM Research Inc. | ACMR | Chen Fuping See remarks | 10,000 | $0 | 10,000 (Direct) | View |
| 2021-08-19 Exercise | 2021-08-20 4:33 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 5,000 | $0 | 14,972 (Direct) | View |
| 2021-08-19 Exercise | 2021-08-20 4:33 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 5,000 | $13.85 | 14,972 (Direct) | View |
| 2021-05-04 Exercise | 2021-05-06 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 23,334 | $3 | 87,770 (Direct) | View |
| 2021-05-04 Exercise | 2021-05-06 5:30 pm | N/A 2026-12-27 | ACM Research Inc. | ACMR | Hu Chenming Director | 23,334 | $0 | 87,770 (Direct) | View |
| 2021-04-08 Exercise | 2021-04-12 5:30 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 5,000 | $0 | 58,334 (Direct) | View |
| 2021-04-08 Exercise | 2021-04-12 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 5,000 | $13.85 | 58,334 (Direct) | View |
| 2021-04-05 Tax Withholding | 2021-04-05 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 223 | $90.08 | 56,445 (Direct) | View |
| 2021-04-05 Exercise | 2021-04-05 5:30 pm | N/A 2025-05-01 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 13,334 | $0 | 56,445 (Direct) | View |
| 2021-04-05 Exercise | 2021-04-05 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 13,334 | $1.5 | 56,445 (Direct) | View |
| 2021-03-30 Exercise | 2021-04-01 7:39 pm | N/A N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 10,000 | $3 | 87,770 (Direct) | View |
| 2021-03-30 Exercise | 2021-04-01 7:39 pm | N/A 2026-12-27 | ACM Research Inc. | ACMR | Hu Chenming Director | 10,000 | $0 | 87,770 (Direct) | View |
| 2021-03-15 Exercise | 2021-03-16 5:31 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 20,000 | $0 | 93,334 (Direct) | View |
| 2021-03-15 Exercise | 2021-03-16 5:31 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 20,000 | $13.85 | 93,334 (Direct) | View |
| 2021-03-12 Exercise | 2021-03-16 5:31 pm | N/A 2028-07-31 | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 10,028 | $0 | 19,972 (Direct) | View |
| 2021-03-12 Exercise | 2021-03-16 5:31 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See remarks | 10,028 | $13.85 | 19,972 (Direct) | View |
| 2021-03-12 Exercise | 2021-03-16 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H 10% Owner | 100,001 | $0.75 | 582,514 (Direct) | View |
| 2021-03-12 Exercise | 2021-03-16 5:30 pm | N/A 2021-05-01 | ACM Research Inc. | ACMR | Wang David H 10% Owner | 100,001 | $0 | 582,514 (Direct) | View |
| 2021-03-12 Tax Withholding | 2021-03-16 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H 10% Owner | 773 | $97.05 | 582,514 (Direct) | View |
| 2021-03-04 Exercise | 2021-03-08 7:13 pm | N/A 2027-03-08 | ACM Research Inc. | ACMR | Hu Chenming Director | 23,334 | $0 | 66,770 (Direct) | View |
| 2021-03-04 Exercise | 2021-03-08 7:13 pm | N/A N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 23,334 | $7.5 | 66,770 (Direct) | View |
| 2021-02-22(A) Option Award | 2021-03-05 9:46 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Dun Haiping Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2021-02-22(A) Option Award | 2021-03-05 9:46 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Liu Tracy Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2021-02-22(A) Option Award | 2021-03-05 9:45 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Hu Chenming Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2021-02-22 Option Award | 2021-03-03 5:31 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Liu Tracy Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2021-02-22 Option Award | 2021-03-03 5:30 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Dun Haiping Director | 5,000 | $0 | 5,000 (Direct) | View |
| 2021-02-22 Exercise | 2021-03-03 5:30 pm | N/A 2027-03-08 | ACM Research Inc. | ACMR | Hu Chenming Director | 10,000 | $0 | 59,436 (Direct) | View |
| 2021-02-22 Option Award | 2021-03-03 5:30 pm | N/A 2031-02-21 | ACM Research Inc. | ACMR | Hu Chenming Director | 5,000 | $0 | 59,436 (Direct) | View |
| 2021-02-22 Exercise | 2021-03-03 5:30 pm | N/A N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 10,000 | $7.5 | 59,436 (Direct) | View |
| 2021-02-26 Exercise | 2021-03-02 5:36 pm | N/A 2027-11-01 | ACM Research Inc. | ACMR | Feng Lisa See remarks | 3,470 | $0 | 16,667 (Direct) | View |
| 2021-02-26 Exercise | 2021-03-02 5:36 pm | N/A N/A | ACM Research Inc. | ACMR | Feng Lisa See remarks | 3,470 | $5.6 | 16,667 (Direct) | View |