AMBARELLA INC — Director's Dealing 2013

Oct 3, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMBARELLA INC (AMBA)
CIK: 0001280263
Period of Report: 2013-10-01

Reporting Person: Day Christopher (See Remarks)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-10-01	Ordinary Shares	M	10000	$8.64	Acquired	33309	Direct
2013-10-01	Ordinary Shares	S	10000	$20.4951	Disposed	23309	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-10-01	Stock Option (right to buy)	$8.64	M	10000	Disposed	2020-04-13	Ordinary Shares (10000)	Direct

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted on June 15, 2013.

F2: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $20.45 to $20.62 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.

F3: Of the total grant of 100,000 shares, 25% vests on the one year anniversary of the date of grant, April 13, 2010, and the remaining shares vest in equal monthly installments over 36 months.