Arista Networks, Inc. — Director's Dealing 2021

Feb 18, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2021-02-16

Reporting Person: MATHER ANN (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-16	Common Stock	M	900	$30.67	Acquired	1486	Direct
2021-02-16	Common Stock	S	900	$325.2339	Disposed	586	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-16	Non-Qualified Stock Option (right to buy)	$30.67	M	900	Disposed	2024-02-10	Common Stock (900)	Direct

Footnotes

F1: The exercises and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 14, 2020.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $325.145 to $325.52, 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.

F3: 1/4th of the shares subject to the option vested and became exercisable on December 1, 2018 and 1/48th of the shares subject to the option shall vest monthly thereafter. On September 13, 2019, the reporting person transferred options to purchase 21,156 shares of Arista common stock to her ex-husband pursuant to a domestic relations order. The reporting person disclaims beneficial ownership in all such transferred stock option interests and no longer reports them as beneficially owned.