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 |
| 2024-03-14 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 |
| 2023-11-20 Sale | 2023-11-22 4:15 pm | ACM Research Inc. | ACMR | Liu Tracy Director | 15,000 | $17.91 | $268,650 | 36,924 (Direct) | View |
| 2023-11-13 Sale | 2023-11-15 4:15 pm | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 26,000 | $16.79 | $436,540 | 110,002 (Direct) | View |
| 2023-10-11 Sale | 2023-10-13 4:15 pm | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 11,250 | $20 | $225,000 | 19,650 (Direct) | View |
| 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 |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 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 9:33 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 9:31 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 566 | $30.92 | 1,019,525 (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 |
| 2024-02-28 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 2029-11-03 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 10,000 | $0 | 9,650 (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 |
| 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 |
| 2023-11-20 Exercise | 2023-11-22 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Liu Tracy Director | 15,000 | $7.36 | 36,924 (Direct) | View |
| 2023-11-20 Exercise | 2023-11-22 4:15 pm | N/A 2030-03-19 | ACM Research Inc. | ACMR | Liu Tracy Director | 15,000 | $0 | 36,924 (Direct) | View |
| 2023-11-14 Exercise | 2023-11-16 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0.5 | 2,464,634 (Direct) | View |
| 2023-11-14 Tax Withholding | 2023-11-16 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 5,224 | $17.23 | 2,464,634 (Direct) | View |
| 2023-11-14 Exercise | 2023-11-16 4:15 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Wang David H See Remarks 10% Owner | 180,000 | $0 | 2,464,634 (Direct) | View |
| 2023-11-14 Exercise | 2023-11-16 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 35,000 | $0.5 | 1,054,075 (Direct) | View |
| 2023-11-14 Tax Withholding | 2023-11-16 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Dun Haiping Director | 1,016 | $17.23 | 1,054,075 (Direct) | View |
| 2023-11-14 Exercise | 2023-11-16 4:15 pm | N/A 2025-04-30 | ACM Research Inc. | ACMR | Dun Haiping Director | 35,000 | $0 | 1,054,075 (Direct) | View |
| 2023-11-13 Exercise | 2023-11-15 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 13,500 | $5.33 | 110,002 (Direct) | View |
| 2023-11-13 Exercise | 2023-11-15 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 12,500 | $4.62 | 110,002 (Direct) | View |
| 2023-11-13 Exercise | 2023-11-15 4:15 pm | N/A 2029-08-03 | ACM Research Inc. | ACMR | Cheav Sotheara See remarks | 26,000 | $0 | 110,002 (Direct) | View |
| 2023-10-11 Exercise | 2023-10-13 4:15 pm | N/A 2029-11-03 | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 11,250 | $0 | 19,650 (Direct) | View |
| 2023-10-11 Exercise | 2023-10-13 4:15 pm | N/A N/A | ACM Research Inc. | ACMR | McKechnie Mark See Remarks | 11,250 | $4.55 | 19,650 (Direct) | View |
| 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 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 |
| 2023-09-04 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 |
| 2023-09-01 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 |
| 2023-09-01 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 |
| 2023-08-23 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 |