144/A: Issuer Information

Name of Issuer

Arista Networks, Inc.

SEC File Number

001-36468

Address of Issuer

5453 Great America Parkway
Santa Clara
CALIFORNIA
95054

Phone

1-408-547-5500

Name of Person for Whose Account the Securities are To Be Sold

Andreas Bechtolsheim

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

10% Stockholder

144/A: Securities Information

Title of the Class of Securities To Be Sold

Name and Address of the Broker

Number of Shares or Other Units To Be Sold

Aggregate Market Value

Number of Shares or Other Units Outstanding

Approximate Date of Sale

Name the Securities Exchange

Common Stock

Goldman Sachs & Co. LLC
200 West Street
New York NY 10282

220000

33939400

1259202593

06/05/2026

NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144/A: Securities To Be Sold

Title of the Class

Date you Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired

Is this a Gift?

Date Donor Acquired

Amount of Securities Acquired

Date of Payment

Nature of Payment *

Common Stock

02/20/2018

Acquired as compensation -- Restricted Stock Units

Arista Networks

12400

02/20/2018

Compensation

Common Stock

05/20/2018

Acquired as compensation -- Restricted Stock Units

Arista Networks

17424

05/20/2018

Compensation

Common Stock

08/20/2018

Acquired as compensation -- Restricted Stock Units

Arista Networks

16624

08/20/2018

Compensation

Common Stock

11/20/2018

Acquired as compensation -- Restricted Stock Units

Arista Networks

16640

11/20/2018

Compensation

Common Stock

02/20/2019

Acquired as compensation -- Restricted Stock Units

Arista Networks

21568

02/20/2019

Compensation

Common Stock

05/20/2019

Acquired as compensation -- Restricted Stock Units

Arista Networks

16640

05/20/2019

Compensation

Common Stock

08/20/2019

Acquired as compensation -- Restricted Stock Units

Arista Networks

16624

08/20/2019

Compensation

Common Stock

11/20/2019

Acquired as compensation -- Restricted Stock Units

Arista Networks

16640

11/20/2019

Compensation

Common Stock

02/20/2020

Acquired as compensation -- Restricted Stock Units

Arista Networks

21216

02/20/2020

Compensation

Common Stock

05/20/2020

Acquired as compensation -- Restricted Stock Units

Arista Networks

19200

05/20/2020

Compensation

Common Stock

08/20/2020

Acquired as compensation -- Restricted Stock Units

Arista Networks

16624

08/20/2020

Compensation

Common Stock

11/20/2020

Acquired as compensation -- Restricted Stock Units

Arista Networks

16640

11/20/2020

Compensation

Common Stock

02/22/2021

Acquired as compensation -- Restricted Stock Units

Arista Networks

11760

02/22/2021

Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144/A: Securities Sold During The Past 3 Months

Name and Address of Seller

Title of Securities Sold

Date of Sale

Amount of Securities Sold

Gross Proceeds