Arista Networks, Inc. — Director's Dealing 2017

Feb 17, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2017-02-15

Reporting Person: Smith Mark Stephen (Former Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-15	Common Stock	M	5000	$4.18	Acquired	68100	Indirect
2017-02-15	Common Stock	S	3752	$100.4348	Disposed	64348	Indirect
2017-02-15	Common Stock	S	1248	$101.0192	Disposed	63100	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-02-15	Non-Qualified Stock Option (right to buy)	$4.18	M	5000	Disposed	2022-12-26	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1620	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 March 11, 2016, and amended on June 2, 2016.

F2: These shares are held by a family trust for which the reporting person is a co-trustee.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.79 to $100.78, 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 $100.79 to $101.25, 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: 1/5th of the 300,000 shares subject to the option shall vest and become exercisable on December 3, 2013 and 1/60th of the shares subject to the option shall vest each month thereafter.

F6: Number of shares beneficially owned reflects the cancellation of 50,000 non-qualified stock options due to termination of reporting officer.