AMBARELLA INC — Director's Dealing 2012

Oct 16, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMBARELLA INC (AMBA)
CIK: 0001280263
Period of Report: 2012-10-15

Reporting Person: Pacven Walden Management V Co. Ltd. (10% Owner)
Reporting Person: PACVEN WALDEN VENTURES V LP (10% Owner)
Reporting Person: Pacven Walden Ventures Parallel V-A C.V. (10% Owner)
Reporting Person: Pacven Walden Ventures Parallel V-B C.V. (10% Owner)
Reporting Person: PACVEN WALDEN VENTURES V ASSOCIATES FUND LP (10% Owner)
Reporting Person: PACVEN WALDEN VENTURES V QP ASSOCIATES FUND LP (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-10-15	Ordinary Shares	C	2820041	—	Acquired	2820041	Indirect
2012-10-15	Ordinary Shares	C	9784	—	Acquired	9784	Indirect
2012-10-15	Ordinary Shares	C	64885	—	Acquired	64885	Indirect
2012-10-15	Ordinary Shares	C	64885	—	Acquired	64885	Indirect
2012-10-15	Ordinary Shares	C	53148	—	Acquired	53148	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-10-15	Series A Convertible Preference Shares	$	C	1560060	Disposed		Ordinary Shares (1560060)	Indirect
2012-10-15	Series A Convertible Preference Shares	$	C	5413	Disposed		Ordinary Shares (5413)	Indirect
2012-10-15	Series A Convertible Preference Shares	$	C	35895	Disposed		Ordinary Shares (35895)	Indirect
2012-10-15	Series A Convertible Preference Shares	$	C	35895	Disposed		Ordinary Shares (35895)	Indirect
2012-10-15	Series A Convertible Preference Shares	$	C	29402	Disposed		Ordinary Shares (29402)	Indirect
2012-10-15	Series B Convertible Preference Shares	$	C	653291	Disposed		Ordinary Shares (653291)	Indirect
2012-10-15	Series B Convertible Preference Shares	$	C	2266	Disposed		Ordinary Shares (2266)	Indirect
2012-10-15	Series B Convertible Preference Shares	$	C	15031	Disposed		Ordinary Shares (15031)	Indirect
2012-10-15	Series B Convertible Preference Shares	$	C	15031	Disposed		Ordinary Shares (15031)	Indirect
2012-10-15	Series B Convertible Preference Shares	$	C	12312	Disposed		Ordinary Shares (12312)	Indirect
2012-10-15	Series C Convertible Preference Shares	$	C	606690	Disposed		Ordinary Shares (606690)	Indirect
2012-10-15	Series C Convertible Preference Shares	$	C	2105	Disposed		Ordinary Shares (2105)	Indirect
2012-10-15	Series C Convertible Preference Shares	$	C	13959	Disposed		Ordinary Shares (13959)	Indirect
2012-10-15	Series C Convertible Preference Shares	$	C	13959	Disposed		Ordinary Shares (13959)	Indirect
2012-10-15	Series C Convertible Preference Shares	$	C	11434	Disposed		Ordinary Shares (11434)	Indirect

Footnotes

F1: Pacven Walden Management V Co. Ltd. ("Pacven V Mgmnt"), the Designated Filer, is the general partner of Pacven Walden Ventures V, L.P. ("Pacven Ventures V"), Pacven Walden Ventures Parallel V-A, C.V. ("Pacven V Parallel A"), Pacven Walden Ventures Parallel Fund V-B, C.V. ("Pacven V Parallel B"), Pacven Walden Ventures V Associates Fund, L.P. ("Pacven V A") and Pacven Walden Ventures V-QP Associates Fund, L.P. ("Pacven V-QP"). Lip-Bu Tan is the sole director of Pacven V Mgmnt and shares voting and investment power with respect to the shares held by Pacven Ventures V, Pacven V Parallel A, Pacven V Parallel B, Pacven V A and Pacven V-QP with the other members of the Investment Committee of Pacven V Mgmnt. The members of such Investment Committee are Lip-Bu Tan, Andrew Kau, Hock Voon Loo and Brian Chiang. Each member disclaims beneficial ownership of the shares except the extent of his or her pecuniary interest.

F2: The Series A Convertible Preference Shares converted into Ordinary Shares on a 1-to-1 basis and had no expiration date.

F3: The Series B Convertible Preference Shares converted into Ordinary Shares on a 1-to-1 basis and had no expiration date.

F4: The Series C Convertible Preference Shares converted into Ordinary Shares on a 1-to-1 basis and had no expiration date.