Arista Networks, Inc. — Director's Dealing 2016

Dec 2, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2016-12-01

Reporting Person: Taxay Marc (SVP and General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-12-01	Common Stock	M	2000	$7.76	Acquired	9080	Direct
2016-12-01	Common Stock	S	1500	$93.0659	Disposed	7580	Direct
2016-12-01	Common Stock	S	200	$94.335	Disposed	7380	Direct
2016-12-01	Common Stock	S	300	$95.6167	Disposed	7080	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-12-01	Non-Qualified Stock Option (right to buy)	$7.76	M	2000	Disposed	2023-03-10	Common Stock (2000)	Direct

Footnotes

F1: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 13, 2016.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.87 to $93.45, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.15 to $94.52, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.49 to $95.74, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5: 1/4th of the 36,000 shares subject to the option shall vest and become exercisable on February 19, 2014 and 1/48th of the shares subject to the option shall vest each month thereafter, provided that the reporting person continues to be a service provider to the Issuer as of each vesting date.