The Vanguard Group 13D and 13G filings for Ambarella, Inc.:
- 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.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-01-30 1:29 pm Purchase | 2025-12-31 | 13G | Ambarella, Inc. AMBA | The Vanguard Group | 5,480,285 12.720% | 865,718 (+18.76%) | Filing |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |