Arista Networks, Inc. — Director's Dealing 2021

Feb 24, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2021-02-22

Reporting Person: McCool John F (Chief Platform Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-22	Common Stock	M	2250	$0.0	Acquired	2332	Indirect
2021-02-22	Common Stock	M	250	$0.0	Acquired	2582	Indirect
2021-02-22	Common Stock	M	187	$0.0	Acquired	2769	Indirect
2021-02-22	Common Stock	M	312	$0.0	Acquired	3081	Indirect
2021-02-22	Common Stock	F	1043	$292.16	Disposed	2038	Indirect
2021-02-22	Common Stock	M	84	$132.75	Acquired	2122	Indirect
2021-02-22	Common Stock	S	84	$307.59	Disposed	2038	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-22	Non-Qualified Stock Option (right to buy)	$132.75	M	84	Disposed	2027-04-16	Common Stock (84)	Direct
2021-02-22	Restricted Stock Unit-1	$0.0	M	2250	Disposed		Common Stock (2250)	Direct
2021-02-22	Restricted Stock Unit-2	$0.0	M	250	Disposed		Common Stock (250)	Direct
2021-02-22	Restricted Stock Unit-3	$0.0	M	187	Disposed		Common Stock (187)	Direct
2021-02-22	Restricted Stock Unit-4	$0.0	M	312	Disposed		Common Stock (312)	Direct

Footnotes

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

F2: Includes 41 shares acquired under the Arista Networks, Inc. 2014 Employee Stock Purchase Plan on February 16, 2021.

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

F4: Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

F5: The exercise and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2020.

F6: 1/5th of the 5,000 shares subject to the option vested and became exercisable on March 20, 2018 and 1/60th of the shares subject to the option shall vest each month thereafter.

F7: 1/5th of the 45,000 restricted stock unit award vested on May 20, 2018 and 1/20th of the award will vest 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 and November 20 of each year.

F8: Six and one-quarter percent (6.25%) of the 4,000 restricted stock units awarded vested on May 20, 2019 and will continue to vest at the same rate 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.

F9: Six and one-quarter percent (6.25%) of the 3,000 restricted stock units awarded vested on November 20, 2020 and will continue to vest at the same rate 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, and November 20 of each year.

F10: Six and one-quarter percent (6.25%) of the 5,000 restricted stock units awarded vested on November 20, 2020 and will continue to vest at the same rate 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, and November 20 of each year.