FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * McCool John F 2. Issuer Name and Ticker or Trading Symbol Arista Networks, Inc. [ ANET ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chief Platform Officer
(Last)          (First)          (Middle)
5453 GREAT AMERICA PARKWAY
3. Date of Earliest Transaction (MM/DD/YYYY)
5/20/2022
(Street)
SANTA CLARA, CA 95054
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock  5/20/2022    M    9000  A $0.0 (1) 9166  I  by Trust (2)
Common Stock  5/20/2022    M    1000  A $0.0 (1) 10166  I  by Trust (2)
Common Stock  5/20/2022    M    752  A $0.0 (1) 10918  I  by Trust (2)
Common Stock  5/20/2022    M    1252  A $0.0 (1) 12170  I  by Trust (2)
Common Stock  5/20/2022    M    1456  A $0.0 (1) 13626  I  by Trust (2)
Common Stock  5/20/2022    M    736  A $0.0 (1) 14362  I  by Trust (2)
Common Stock  5/20/2022    M    435  A $0.0 (1) 14797  I  by Trust (2)
Common Stock  5/20/2022    M    488  A $0.0 (1) 15285  I  by Trust (2)
Common Stock  5/20/2022    F(3)    7498  D $102.64  7787  I  by Trust (2)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Unit-1  $0.0 (1) 5/20/2022    M        9000    (4)  (4) Common Stock  9000  $0.0  0  D   
Restricted Stock Unit-2  $0.0 (1) 5/20/2022    M        1000    (5)  (5) Common Stock  1000  $0.0  3000  D   
Restricted Stock Unit-3  $0.0 (1) 5/20/2022    M        752    (6)  (6) Common Stock  752  $0.0  6748  D   
Restricted Stock Unit-4  $0.0 (1) 5/20/2022    M        1252    (7)  (7) Common Stock  1252  $0.0  11248  D   
Restricted Stock Unit-5  $0.0 (1) 5/20/2022    M        1456    (8)  (8) Common Stock  1456  $0.0  16004  D   
Restricted Stock Unit-6  $0.0 (1) 5/20/2022    M        736    (9)  (9) Common Stock  736  $0.0  10288  D   
Restricted Stock Unit-8  $0.0 (1) 5/20/2022    M        435    (10)  (10) Common Stock  435  $0.0  3069  D   
Restricted Stock Unit-9  $0.0 (1) 5/20/2022    M        488    (11)  (11) Common Stock  488  $0.0  3440  D   

Explanation of Responses:
(1)  Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.
(2)  These shares are held by a family trust for which the reporting person is co-trustee.
(3)  Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.
(4)  1/5th of the 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.
(5)  Six and one-quarter percent (6.25%) of the 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.
(6)  Six and one-quarter percent (6.25%) of the 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.
(7)  Six and one-quarter percent (6.25%) of the 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.
(8)  Six and one-quarter percent (6.25%) of the 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.
(9)  Six and one-quarter percent (6.25%) of the restricted stock units awarded will vest on February 20, 2022 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.
(10)  This performance stock award was granted in the first quarter of 2021 and was earned based on attainment of certain performance conditions. The award vests 1/3 on February 22, 2022, and will continue to vest quarterly over 2 years. 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.
(11)  This performance stock award was granted in the first quarter of 2021 and was earned based on attainment of certain performance conditions. The award vests 1/3 on February 22, 2022, and will continue to vest quarterly over 2 years. 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.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
McCool John F
5453 GREAT AMERICA PARKWAY
SANTA CLARA, CA 95054


Chief Platform Officer

Signatures
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: John F. McCool 5/24/2022
**Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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