AMBARELLA INC — Director's Dealing 2015

Mar 27, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMBARELLA INC (AMBA)
CIK: 0001280263
Period of Report: 2015-03-25

Reporting Person: TAN LIP BU (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-03-25	Ordinary Shares	M	10000	$8.82	Acquired	14167	Direct
2015-03-25	Ordinary Shares	M	2500	$16.35	Acquired	16667	Direct
2015-03-25	Ordinary Shares	M	2777	$38.92	Acquired	19444	Direct
2015-03-25	Ordinary Shares	S	15277	$69.4451	Disposed	4167	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-03-25	Stock Option (right to buy)	$8.82	M	10000	Disposed	2020-11-03	Ordinary Shares (10000)	Direct
2015-03-25	Stock Option (right to buy)	$16.35	M	2500	Disposed	2023-06-06	Ordinary Shares (2500)	Direct
2015-03-25	Stock Option (right to buy)	$38.92	M	2777	Disposed	2024-09-08	Ordinary Shares (2777)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	1464	Indirect

Footnotes

F1: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $69.27 to $69.65 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 (1) to this Form 4.

F2: Such shares are held by Lip-Bu Tan & Ysa Loo Trust DTD 2/3/92.

F3: Of the 22,222 total shares granted, the shares subject to the option vested monthly over four years beginning on August 1, 2010.

F4: Of the 5,555 total shares granted, the shares subject to the option vested at a rate of 1/12 per month following the vest start date of June 6, 2013

F5: Of the 5,555 total shares granted, the shares subject to the option vest at a rate of 1/12 per month following the vesting start date of September 8, 2014.