SEC Form 4 · accession 0001280263-15-000131

AMBARELLA INC · AMBA

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Vice President, Sales

Period of report

Dec 16, 2015

Accepted (ET)

Dec 18, 2015 · 6:51 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001280263

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Ordinary Shares^F1	Dec 16, 2015	M	4,435	—	A	4,435	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Restricted Stock Units^F1,F2	—	Dec 16, 2015	M	486	D	—	Aug 27, 2022	Ordinary Shares	486	1,459	D
Restricted Stock Units^F1,F3	—	Dec 16, 2015	M	1,125	D	—	Aug 26, 2023	Ordinary Shares	1,125	1,125	D
Restricted Stock Units^F1,F4	—	Dec 16, 2015	M	1,312	D	—	Aug 27, 2023	Ordinary Shares	1,312	9,188	D
Restricted Stock Units^F1,F5	—	Dec 16, 2015	M	1,159	D	—	Sep 7, 2024	Ordinary Shares	1,159	12,754	D
Restricted Stock Units^F1,F6	—	Dec 16, 2015	M	353	D	—	Oct 7, 2025	Restricted Stock Units	353	5,299	D

F1Each restricted stock unit represents a contingent right to receive one share of Ambarella, Inc. Ordinary Shares.
F2The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2012.
F3The RSUs vested as to 1/8 of the RSUs on June 15, 2014 and 1/8 of the RSU's will vest each three months thereafter such that the RSUs are 100% vested on March 15, 2016.
F4The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2013.
F5The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2014.
F6The restricted stock units vest at the rate of 1/16 per quarter beginning on September 15, 2015.