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 |
| 2021-09-22 Sale |
2021-09-24 4:34 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
3,666 | $160 | $586,560 | 10,246 (Direct) |
View |
| 2021-09-09 Sale |
2021-09-10 5:37 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
4,000 | $140 | $560,000 | 12,953 (Direct) |
View |
| 2021-09-01 Sale |
2021-09-02 4:57 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
4,000 | $120 | $480,000 | 16,953 (Direct) |
View |
| 2021-04-20 Sale |
2021-04-20 8:25 pm |
INPHI Corp | IPHI | Hu Chenming Director |
66,981 | $0 | $0 | 0 (Direct) |
View |
| 2021-02-12 Sale |
2021-02-16 5:43 pm |
ACM Research Inc. | ACMR | Hu Chenming Director |
10,000 | $120 | $1,200,000 | 21,102 (Direct) |
View |
| 2020-12-03 Sale |
2020-12-04 5:07 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
5,818 | $88 | $511,984 | 18,079 (Direct) |
View |
| 2020-11-27 Sale |
2020-12-02 5:18 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
5,000 | $78 | $390,000 | 23,897 (Direct) |
View |
| 2020-11-24 Sale |
2020-11-25 5:24 pm |
AMBARELLA INC | AMBA | Hu Chenming Director |
5,000 | $70.67 | $353,350 | 28,897 (Direct) |
View |
| 2020-08-03 Sale |
2020-08-05 5:30 pm |
ACM Research Inc. | ACMR | Hu Chenming Director |
7,806 | $100 | $780,600 | 0 (Direct) |
View |
| 2020-07-13 Sale |
2020-07-15 8:00 pm |
ACM Research Inc. | ACMR | Hu Chenming Director |
14,000 | $84.15 | $1,178,100 | 7,806 (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 |
| 2024-08-29 Option Award |
2024-08-30 4:51 pm |
N/A N/A |
AMBARELLA INC | AMBA | Hu Chenming Director |
3,374 | $0 | 27,018 (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 |
| 2023-08-31 Option Award |
2023-09-01 5:03 pm |
N/A N/A |
AMBARELLA INC | AMBA | Hu Chenming Director |
3,218 | $0 | 23,644 (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 |
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 |
| 2023-06-15 Option Award |
2023-06-20 4:01 pm |
N/A N/A |
AMBARELLA INC | AMBA | Hu Chenming Director |
1,559 | $0 | 20,426 (Direct) |
View |
| 2023-03-15 Exercise |
2023-03-17 4:54 pm |
N/A 2023-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
779 | $0 | 20,426 (Direct) |
View |
| 2022-12-16 Exercise |
2022-12-20 5:11 pm |
N/A 2023-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
779 | $0 | 20,426 (Direct) |
View |
| 2022-09-16 Exercise |
2022-09-20 4:55 pm |
N/A 2022-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
377 | $0 | 17,309 (Direct) |
View |
| 2022-09-01 Option Award |
2022-09-02 5:06 pm |
N/A 2023-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
3,117 | $0 | 3,117 (Direct) |
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 |
| 2022-06-16 Exercise |
2022-06-17 6:19 pm |
N/A 2022-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
377 | $0 | 17,309 (Direct) |
View |
| 2022-03-16 Exercise |
2022-03-18 5:35 pm |
N/A 2022-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
377 | $0 | 17,309 (Direct) |
View |
| 2022-02-25 Exercise |
2022-03-01 8:14 pm |
N/A 2024-09-07 |
AMBARELLA INC | AMBA | Hu Chenming Director |
5,555 | $0 | 16,178 (Direct) |
View |
| 2022-02-25 Exercise |
2022-03-01 8:14 pm |
N/A N/A |
AMBARELLA INC | AMBA | Hu Chenming Director |
5,555 | $38.92 | 16,178 (Direct) |
View |
| 2021-12-16 Exercise |
2021-12-17 5:35 pm |
N/A 2022-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
377 | $0 | 11,754 (Direct) |
View |
| 2021-09-16 Exercise |
2021-09-17 5:22 pm |
N/A 2021-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
959 | $0 | 13,912 (Direct) |
View |
| 2021-09-02 Option Award |
2021-09-07 7:47 pm |
N/A 2022-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
1,508 | $0 | 1,508 (Direct) |
View |
| 2021-06-16 Exercise |
2021-06-17 5:04 pm |
N/A 2021-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
958 | $0 | 21,912 (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 |
| 2021-03-30 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 |
| 2021-03-16 Exercise |
2021-03-18 5:02 pm |
N/A 2021-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
958 | $0 | 21,912 (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 Option Award(A) |
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 |
| 2021-03-02 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 |
| 2021-03-02 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 |
| 2021-02-22 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 |
| 2020-12-16 Exercise |
2020-12-18 4:45 pm |
N/A 2021-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
958 | $0 | 21,912 (Direct) |
View |
| 2020-09-30 Exercise |
2020-10-01 4:59 pm |
N/A N/A |
Fortinet Inc. | FTNT | Hu Chenming Director |
448 | $0 | 3,924 (Direct) |
View |
| 2020-09-16 Exercise |
2020-09-18 4:55 pm |
N/A N/A |
AMBARELLA INC | AMBA | Hu Chenming Director |
858 | $0 | 33,897 (Direct) |
View |
| 2020-09-08 Exercise |
2020-09-10 7:00 pm |
N/A N/A |
ACM Research Inc. | ACMR | Hu Chenming Director |
31,102 | $3 | 31,102 (Direct) |
View |
| 2020-09-08 Exercise |
2020-09-10 7:00 pm |
N/A 2026-12-27 |
ACM Research Inc. | ACMR | Hu Chenming Director |
31,102 | $0 | 31,102 (Direct) |
View |
| 2020-09-04 Option Award |
2020-09-09 4:47 pm |
N/A 2021-09-15 |
AMBARELLA INC | AMBA | Hu Chenming Director |
3,833 | $0 | 3,833 (Direct) |
View |