Arista Networks, Inc. — Director's Dealing 2017

Feb 23, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2017-02-21

Reporting Person: Duda Kenneth (CTO and SVP Software Eng.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-21	Common Stock	M	625	$0.0	Acquired	1045	Direct
2017-02-21	Common Stock	F	234	$122.62	Disposed	811	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-02-21	Restricted Stock Unit-1	$0.0	M	625	Disposed		Common Stock (625)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1494818	Indirect

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.

F2: Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

F3: These shares are held by a family trust for which the reporting person is a co-trustee.

F4: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.