AMBARELLA INC — Director's Dealing 2013

May 9, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMBARELLA INC (AMBA)
CIK: 0001280263
Period of Report: 2013-05-07

Reporting Person: MATRIX PARTNERS VII LP ET AL (Former 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-07	Ordinary Shares	J	700000	—	Disposed	1938363	Indirect

Footnotes

F1: All shares are held by Matrix Partners VII, L.P. Matrix VII Management Co. L.L.C. is the General Partner of the aforementioned entity and disclaims beneficial ownership of the shares owned by the entity except to the proportionate pecuniary interest therein.

F2: Represents a pro-rata, in-kind distribution by Matrix Partners VII, L.P., without consideration, to its partners.