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Filing Details

Accession Number:: 0001181431-13-052422
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2013-10-03 18:16:42
Reporting Period:: 2013-10-01

Filing Date:: 2013-10-03
Accepted Time:: 2013-10-03 18:16:42
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1280263	Ambarella Inc	AMBA	Semiconductors & Related Devices (3674)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1558686	Feng-Ming Wang	3101 Jay Street Santa Clara CA 95054	President And Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Ordinary Shares	Disposition	2013-10-01	22,200	$19.31	723,633	No	4	S	Direct
Ordinary Shares	Disposition	2013-10-01	13,800	$20.54	709,833	No	4	S	Direct
Ordinary Shares	Disposition	2013-10-01	3,300	$19.32	95,033	No	4	S	Indirect	See Footnote
Ordinary Shares	Disposition	2013-10-01	1,700	$20.54	93,333	No	4	S	Indirect	See Footnote
Ordinary Shares	Disposition	2013-10-01	6,600	$19.31	163,400	No	4	S	Indirect	See Footnote
Ordinary Shares	Disposition	2013-10-01	3,400	$20.53	160,000	No	4	S	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct
No	4	S	Direct
No	4	S	Indirect	See Footnote
No	4	S	Indirect	See Footnote
No	4	S	Indirect	See Footnote
No	4	S	Indirect	See Footnote

Footnotes

The sales reported on this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on March 28, 2013.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $19.06 to $20.0588 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $20.1299 to $20.89 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $19.09 to $19.71 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (4) to this Form 4.
Shares held by Acorn Hall Irreversible Trust for the benefit of the reporting person's child. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or any other purpose.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $20.10 to $20.78 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (6) to this Form 4.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $19.08 to $19.99 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (7) to this Form 4.
Shares held by Tutu's Irrevocable Trust for the benefit of the reporting person's child. The reporting person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or any other purpose.
The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $20.14 to $20.81 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (9) to this Form 4.