Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem 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>>
| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2025-04-23 8:00 pm Purchase |
2025-03-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
3,081,149 7.300% |
3,081,149 (New Position) |
Filing History |
| 2024-11-12 1:26 pm Unchanged |
2024-09-30 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 4,614,567 11.180% |
0 (Unchanged) |
Filing History |
| 2024-11-04 10:57 am Purchase |
2024-09-30 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 4,614,567 11.180% |
522,033 (+12.76%) |
Filing History |
| 2024-02-13 4:58 pm Purchase |
2023-12-29 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 4,092,534 10.170% |
59,742 (+1.48%) |
Filing History |
| 2024-02-09 11:32 am Sale |
2023-12-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
3,381,197 8.400% |
-77,267 (-2.23%) |
Filing |
| 2023-09-11 1:33 pm Purchase |
2023-08-31 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 4,032,792 10.180% |
436,793 (+12.15%) |
Filing History |
| 2023-02-09 11:07 am Purchase |
2022-12-30 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 3,595,999 9.280% |
137,564 (+3.98%) |
Filing History |
| 2023-02-07 2:10 pm Sale |
2022-12-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
3,458,464 8.900% |
-569,557 (-14.14%) |
Filing |
| 2022-04-08 09:57 am Purchase |
2022-03-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
4,028,021 10.900% |
522,698 (+14.91%) |
Filing |
| 2022-02-09 3:24 pm Purchase |
2021-12-31 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 3,458,435 9.350% |
351,808 (+11.32%) |
Filing History |
| 2022-02-07 4:40 pm Purchase |
2021-12-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
3,505,323 9.500% |
662,339 (+23.30%) |
Filing |
| 2021-02-10 10:30 am Purchase |
2020-12-31 | 13G | Ambarella, Inc. AMBA |
The Vanguard Group | 3,106,627 8.830% |
190,549 (+6.53%) |
Filing History |
| 2021-01-28 6:11 pm Sale |
2020-12-31 | 13G | Ambarella, Inc. AMBA |
BlackRock Inc. BLK |
2,842,984 8.100% |
-534,577 (-15.83%) |
Filing |