ANET

SEC source: 0001596532-24-000086 · edgardoc.xml · nonDerivative · entry 4

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,288

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000086 · edgardoc.xml · nonDerivative · entry 3

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,984

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000086 · edgardoc.xml · nonDerivative · entry 2

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,440

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000086 · edgardoc.xml · nonDerivative · entry 1

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 876

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 17

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 27,661 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F10 · derivative.exercise_date: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2024.

F10 · derivative.expiration_date: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2024.

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 16

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,661

Underlying: Common Stock · 27,661 shares

Expires not disclosed

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

F10 · derivative.exercise_date: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2024.

F10 · derivative.expiration_date: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2024.

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 15

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,190

Underlying: Common Stock · 5,147 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F9 · derivative.exercise_date: This performance stock award was granted in the first quarter of 2022 and was earned based on attainment of certain performance conditions. The award vested 25% on February 21, 2023 and will continue to vest quarterly over 3 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.

F9 · derivative.expiration_date: This performance stock award was granted in the first quarter of 2022 and was earned based on attainment of certain performance conditions. The award vested 25% on February 21, 2023 and will continue to vest quarterly over 3 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.

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 14

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 12,496 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F8 · derivative.exercise_date: 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 (25%) on February 20, 2022, and will continue to vest quarterly over 3 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.

F8 · derivative.expiration_date: 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 (25%) on February 20, 2022, and will continue to vest quarterly over 3 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.

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 13

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,602

Underlying: Common Stock · 11,147 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F7 · derivative.exercise_date: 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 (25%) on February 20, 2022, and will continue to vest quarterly over 3 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.

F7 · derivative.expiration_date: 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 (25%) on February 20, 2022, and will continue to vest quarterly over 3 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.

SEC source: 0001596532-24-000087 · edgardoc.xml · derivative · entry 12

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,044 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F6 · derivative.exercise_date: This performance stock award was granted in the first quarter of 2020 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2021, and will continue to vest at a rate of 6.25% quarterly 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.

F6 · derivative.expiration_date: This performance stock award was granted in the first quarter of 2020 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2021, and will continue to vest at a rate of 6.25% quarterly 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.

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 6

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,099

F2 · kind: Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 5

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,546

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 4

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,885

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 3

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,738

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 2

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,242

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000087 · edgardoc.xml · nonDerivative · entry 1

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,095

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

SEC source: 0001596532-24-000211 · edgardoc.xml · derivative · entry 2

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,988

Underlying: Common Stock · 27,661 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F3 · derivative.exercise_date: Amending vest schedule: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2024, and will continue to vest quarterly over 3 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.

F3 · derivative.expiration_date: Amending vest schedule: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2024, and will continue to vest quarterly over 3 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.

F4 · balance_after: Amending to show updated share balance after amending the original granted entry.

SEC source: 0001596532-24-000211 · edgardoc.xml · derivative · entry 1

Ullal Jayshree · CIK 0001605809 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,649

Underlying: Common Stock · 110,649 shares

Expires not disclosed

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

F2 · shares: Amending to add the total number of shares which could be issued under the restricted stock unit upon attainment of performance conditions.

F3 · derivative.exercise_date: Amending vest schedule: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2024, and will continue to vest quarterly over 3 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.

F3 · derivative.expiration_date: Amending vest schedule: This performance stock award was granted in the first quarter of 2023 and was earned based on attainment of certain performance conditions. The award vested (25%) on February 20, 2024, and will continue to vest quarterly over 3 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.

F2 · derivative.underlying_shares: Amending to add the total number of shares which could be issued under the restricted stock unit upon attainment of performance conditions.

F2 · balance_after: Amending to add the total number of shares which could be issued under the restricted stock unit upon attainment of performance conditions.

SEC source: 0001596532-24-000061 · edgardoc.xml · nonDerivative · entry 1

McCool John F · CIK 0001701967 · Chief Platform Officer

10b5-1 filing: Plan reported

Ownership: Indirect · by Trust

Disclosed balance after: 0

F1 · kind: 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 September 8, 2023.

F2 · shares: Includes 72 shares acquired under the Arista Networks, Inc. 2014 Employee Stock Purchase Plan on February 15, 2024.

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

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 10

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,553

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.00 to $270.09, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 9

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,555

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $269.00 to $269.84, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 8

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,574

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $268.00 to $268.99, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 7

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,609

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $267.00 to $267.99, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 6

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,656

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $266.00 to $266.99, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 5

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,699

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $265.00 to $265.99, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 4

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,738

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $264.00 to $264.97, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 3

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,780

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $263.00 to $263.98, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 2

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,796

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $261.99 to $262.90, 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.

SEC source: 0001596532-24-000059 · edgardoc.xml · nonDerivative · entry 1

Battles Kelly Bodnar · CIK 0001817763 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,808

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 14, 2023.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 30

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 198,600

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 29

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 198,650

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F23 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $288.46 to $288.51, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 28

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 198,750

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F22 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $287.08 to $287.54, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 27

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 198,853

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F21 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $285.91 to $286.68, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 26

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 198,953

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F20 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $284.885 to $285.53, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 25

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 199,607

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F19 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $283.87 to $284.81, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 24

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 200,609

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F18 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $282.835 to $283.81, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 23

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 201,209

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F17 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $281.81 to $282.75, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 22

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 201,850

F14 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on December 12, 2022 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F15 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $280.78 to $281.56, 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.

F16 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 21

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 275,268

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $291.54 to $291.54, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 20

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 275,625

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $290.05 to $290.79, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 19

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 276,048

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $288.91 to $289.83, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 18

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 276,223

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $287.73 to $288.53, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 17

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 276,719

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $286.01 to $286.99, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 16

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 277,362

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $285.00 to $285.96, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 15

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 279,617

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $284.00 to $284.99, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 14

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 283,828

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $283.00 to $283.985, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 13

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 286,337

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $282.00 to $282.975, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 12

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 290,097

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on February 24, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $281.00 to $281.99, 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.

F13 · ownership.nature: These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 11

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,244

F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 24, 2023.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $291.54 to $291.54, 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.

SEC source: 0001596532-24-000056 · edgardoc.xml · nonDerivative · entry 10

Duda Kenneth · CIK 0001605808 · Director · CTO and SVP Software Eng.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,687

F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 24, 2023.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $290.05 to $290.79, 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.