Arista Networks, Inc. — Director's Dealing 2021

May 24, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arista Networks, Inc. (ANET)
CIK: 0001596532
Period of Report: 2021-05-20

Reporting Person: Sadana Anshul (SVP, Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-20	Common Stock	M	750	$0.0	Acquired	2408	Direct
2021-05-20	Common Stock	M	1000	$0.0	Acquired	3408	Direct
2021-05-20	Common Stock	M	438	$0.0	Acquired	3846	Direct
2021-05-20	Common Stock	M	375	$0.0	Acquired	4221	Direct
2021-05-20	Common Stock	M	600	$0.0	Acquired	4821	Direct
2021-05-20	Common Stock	M	500	$0.0	Acquired	5321	Direct
2021-05-20	Common Stock	M	1514	$0.0	Acquired	6835	Direct
2021-05-20	Common Stock	F	2569	$335.93	Disposed	4266	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-20	Restricted Stock Unit-2	$0.0	M	750	Disposed		Common Stock (750)	Direct
2021-05-20	Restricted Stock Unit-3	$0.0	M	1000	Disposed		Common Stock (1000)	Direct
2021-05-20	Restricted Stock Unit-4	$0.0	M	438	Disposed		Common Stock (438)	Direct
2021-05-20	Restricted Stock Unit-5	$0.0	M	375	Disposed		Common Stock (375)	Direct
2021-05-20	Restricted Stock Unit-6	$0.0	M	600	Disposed		Common Stock (600)	Direct
2021-05-20	Restricted Stock Unit-7	$0.0	M	500	Disposed		Common Stock (500)	Direct
2021-05-20	Restricted Stock Unit-8	$0.0	M	1514	Disposed		Common Stock (1514)	Direct

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: Five percent (5%) of the 15,000 restricted stock units awarded vested on February 20, 2017 and five percent (5%) of the award will continue to 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, or November 20 of each year.

F4: Five percent (5%) of the 20,000 restricted stock units awarded vested on February 20, 2018 and five percent (5%) of the award will continue to 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, or November 20 of each year.

F5: Six and one-quarter percent (6.25%) of the 7,000 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.

F6: Six and one-quarter percent (6.25%) of the 6,000 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, or November 20.

F7: Five percent (5%) of the 12,000 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, and November 20 of each year.

F8: Six and one-quarter percent (6.25%) of the 8,000 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.

F9: Six and one-quarter percent (6.25%) of the 24,230 restricted stock units awarded vested on May 20, 2021 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.