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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1596532	Arista Networks Inc.	ANET	Computer Communications Equipment (3576)	201751121

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1605807	Anshul Sadana	5453 Great America Parkway Santa Clara CA 95054	Svp, Chief Operating Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2021-04-09	400	$22.49	2,058	No	4	M	Direct
Common Stock	Acquisiton	2021-04-09	4,902	$30.67	6,960	No	4	M	Direct
Common Stock	Acquisiton	2021-04-09	1,666	$68.34	8,626	No	4	M	Direct
Common Stock	Acquisiton	2021-04-09	666	$64.46	9,292	No	4	M	Direct
Common Stock	Acquisiton	2021-04-09	834	$56.24	10,126	No	4	M	Direct
Common Stock	Disposition	2021-04-09	8,468	$315.15	1,658	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	M	Direct
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-04-09	400	$0.00	400	$22.49
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-04-09	4,902	$0.00	4,902	$30.67
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-04-09	834	$0.00	834	$56.24
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-04-09	666	$0.00	666	$64.46
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2021-04-09	1,666	$0.00	1,666	$68.34

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
3,200	2024-01-12	No	4	M	Direct
33,333	2024-02-10	No	4	M	Direct
4,583	2026-02-11	No	4	M	Direct
2,667	2025-09-10	No	4	M	Direct
6,667	2024-12-15	No	4	M	Direct

Footnotes

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 December 14, 2020..
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $315.00 to $315.48, 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.
1/5th of the 24,000 shares subject to the option vested and became exercisable on December 1, 2017 and 1/60th of the shares subject to the option shall vest monthly thereafter.
1/5th of the 100,000 shares subject to the option vested and became exercisable on December 1, 2018 and 1/60th of the shares subject to the option shall vest monthly thereafter.
1/60th of the 25,000 shares subject to the option vested and became exercisable on April 1, 2017 and 1/60th of the shares subject to the option shall vest monthly thereafter.
1/5th of the 20,000 shares subject to the option vested and became exercisable on December 1, 2017 and 1/60th of the shares subject to the option shall vest monthly thereafter.
1/5th of the 50,000 shares subject to the option vested and became exercisable on December 1, 2017 and 1/60th of the shares subject to the option shall vest monthly thereafter.