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 |
| 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 |
| 2021-02-12 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 |
| 2020-06-03 Sale | 2020-06-05 9:16 pm | ACM Research Inc. | ACMR | Hu Chenming Director | 8,194 | $65.12 | $533,593 | 21,806 (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 |
| 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 N/A | AMBARELLA INC | AMBA | Hu Chenming Director | 5,555 | $38.92 | 16,178 (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 |
| 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 |
| 2021-04-20 Disposition | 2021-04-20 8:25 pm | N/A N/A | INPHI Corp | IPHI | Hu Chenming Director | 66,981 | $0 | 0 (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 N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 23,334 | $7.5 | 66,770 (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 |
| 2021-02-22 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 N/A | ACM Research Inc. | ACMR | Hu Chenming Director | 10,000 | $7.5 | 59,436 (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 |
| 2021-02-22 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 |
| 2020-06-23 Exercise | 2020-06-24 5:01 pm | N/A N/A | AMBARELLA INC | AMBA | Hu Chenming Director | 1,112 | $9.99 | 33,039 (Direct) | View |
| 2020-06-23 Exercise | 2020-06-24 5:01 pm | N/A 2022-02-27 | AMBARELLA INC | AMBA | Hu Chenming Director | 1,112 | $0 | 33,039 (Direct) | View |
| 2020-06-16 Exercise | 2020-06-18 4:28 pm | N/A N/A | AMBARELLA INC | AMBA | Hu Chenming Director | 858 | $0 | 32,785 (Direct) | View |