Activist 13D/13G Filings - AMBARELLA INC (AMBA)

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 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>>
Time period
Reported
DateTime		TypeCompany
Symbol		Filed By
Symbol		Shares Owned
% Owned		Shares Vs. Prev ReportFiling
2024-11-12
1:26 pm
Unchanged		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC4,614,567
11.180%		0
(Unchanged)		View
2024-11-04
10:57 am
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC4,614,567
11.180%		522,033increase
(+12.76%)		View
2024-02-13
4:58 pm
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC4,092,534
10.170%		59,742increase
(+1.48%)		View
2024-02-09
11:32 am
Sale		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		3,381,197
8.400%		-77,267decrease
(-2.23%)		View
2023-09-11
1:33 pm
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC4,032,792
10.180%		436,793increase
(+12.15%)		View
2023-02-09
11:07 am
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC3,595,999
9.280%		137,564increase
(+3.98%)		View
2023-02-07
2:10 pm
Sale		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		3,458,464
8.900%		-569,557decrease
(-14.14%)		View
2022-04-08
09:57 am
Purchase		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		4,028,021
10.900%		522,698increase
(+14.91%)		View
2022-02-09
3:24 pm
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC3,458,435
9.350%		351,808increase
(+11.32%)		View
2022-02-07
4:40 pm
Purchase		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		3,505,323
9.500%		662,339increase
(+23.30%)		View
2021-02-10
10:30 am
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC3,106,627
8.830%		190,549increase
(+6.53%)		View
2021-01-28
6:11 pm
Sale		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		2,842,984
8.100%		-534,577decrease
(-15.83%)		View
2020-02-13
10:48 am
Sale		13GAmbarella, Inc.
AMBA		MORGAN STANLEY
MS		1,079,085
3.200%		-1,020,377decrease
(-48.60%)		View
2020-02-12
09:16 am
Purchase		13GAmbarella, Inc.
AMBA		VANGUARD GROUP INC2,916,078
8.690%		550,160increase
(+23.25%)		View
2020-01-10
2:47 pm
Purchase		13GAmbarella, Inc.
AMBA		BlackRock Inc.
BLK		3,377,561
10.100%		1,803,482increase
(+114.57%)		View