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Arista Networks, Inc.

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2421
SEC CIK
0001596532
Parsed reports
1,587

Last 12 months

Inside the activity.

0 purchase rows · 577 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025034
Dec 2025018
Jan 2026016
Feb 2026030
Mar 2026019
Apr 2026052
May 2026047
Jun 2026062
Jul 2026066
Aug 20260176
Sep 2026033
Oct 2026024

Latest available

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
SaleCommon Stock 100 $264.17 $26,417.00
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 9

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,428

F1 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
SaleCommon Stock 739 $263.25 $194,540.20
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 8

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,528

F1 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $262.84 to $263.60, 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.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
SaleCommon Stock 800 $262.13 $209,707.04
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 7

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,267

F1 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $261.71 to $262.70, 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.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 250 $65.01 $16,252.50
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 6

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,067

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 167 $56.24 $9,392.08
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 5

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,817

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 167 $64.46 $10,764.82
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 4

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,650

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 167 $68.34 $11,412.78
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 3

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,483

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 166 $30.67 $5,091.22
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 2

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,316

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 23:27 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionCommon Stock 166 $22.49 $3,733.34
Disclosure

SEC source: 0001596532-19-000170 · edgardoc.xml · nonDerivative · entry 1

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,150

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 100 $255.44 $25,544.00
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 366,089

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 800 $254.77 $203,818.00
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 366,189

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $254.40 to $255.28, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 1,800 $253.50 $456,292.98
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 366,989

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $253.18 to $253.99, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 1,200 $252.74 $303,290.04
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 368,789

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $252.13 to $253.04, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 600 $251.75 $151,051.98
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 369,989

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $251.11 to $252.05, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 1,500 $250.21 $375,310.05
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 370,589

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $250.01 to $250.71, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 3,800 $249.58 $948,410.46
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 372,089

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $248.96 to $249.94, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 200 $248.26 $49,651.00
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 375,889

F3 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 8, 2019.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $247.84 to $248.67, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 400 $255.28 $102,112.00
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 67,142

F1 · 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 persons children on December 12, 2018.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 276 $249.89 $68,968.73
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 67,542

F1 · 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 persons children on December 12, 2018.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $249.72 to $249.95, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 21:10 UTC
Duda KennethCTO and SVP Software Eng.
SaleCommon Stock 200 $247.84 $49,568.00
Disclosure

SEC source: 0001596532-19-000166 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 67,818

F1 · 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 persons children on December 12, 2018.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 12,000 $56.24 Strike: $56.24 $674,880.00
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · derivative · entry 16

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,667

Underlying: Common Stock · 12,000 shares

Expires 2026-02-11

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 · 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 March 14, 2019.

F9 · derivative.exercise_date: 1/60th of the 100,000 shares subject to the option vested on January 1, 2017 and 1/60th of the shares subject to the option shall continue to vest each month thereafter.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 40,350 $38.00 Strike: $38.00 $1,533,300.00
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · derivative · entry 15

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 267,983

Underlying: Common Stock · 40,350 shares

Expires 2024-05-19

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 · 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 March 14, 2019.

F8 · derivative.exercise_date: 1/5th of the 500,000 shares subject to the option vested on September 30, 2017 and 1/60th of the shares subject to the option shall vest monthly thereafter.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 6,081 $255.22 $1,552,004.37
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 14

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,575,230

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 March 14, 2019.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $255.06 to $255.565, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 14,414 $254.50 $3,668,341.38
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 13

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,581,311

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 March 14, 2019.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $254.06 to $255.05, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 25,051 $253.46 $6,349,511.63
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 12

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,595,725

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 March 14, 2019.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $253.06 to $254.05, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 18,980 $252.70 $4,796,242.20
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 11

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,620,776

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 March 14, 2019.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $252.055 to $253.05, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 6,889 $251.51 $1,732,657.90
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 10

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,639,756

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 March 14, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $251.01 to $252.005, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 16,476 $250.27 $4,123,369.44
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 9

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 12,646,645

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 March 14, 2019.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $250.00 to $250.99, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 3,619 $255.22 $923,647.33
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 8

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,113

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 March 14, 2019.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $255.06 to $255.565, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 8,576 $254.50 $2,182,577.42
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 7

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,732

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 March 14, 2019.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $254.06 to $255.05, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 14,957 $253.46 $3,791,029.64
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 6

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,308

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 March 14, 2019.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $253.06 to $254.05, 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.

Read SEC document
June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 11,299 $252.70 $2,855,256.17
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 5

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,265

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 March 14, 2019.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $252.055 to $253.05, 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.

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June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 4,092 $251.51 $1,029,179.33
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 4

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,564

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 March 14, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $251.01 to $252.005, 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.

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June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
SaleCommon Stock 9,807 $250.26 $2,454,346.89
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 3

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,656

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 March 14, 2019.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $250.00 to $250.99, 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.

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June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
Exercise / conversionCommon Stock 40,350 $38.00 $1,533,300.00
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 2

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,463

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 · 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 March 14, 2019.

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June 10, 2019 Filed Jun 12, 2019 22:45 UTC
BECHTOLSHEIM ANDREASDirector · Chief Development Officer · 10% owner
Exercise / conversionCommon Stock 12,000 $56.24 $674,880.00
Disclosure

SEC source: 0001596532-19-000168 · edgardoc.xml · nonDerivative · entry 1

BECHTOLSHEIM ANDREAS · CIK 0001133206 · Director · Chief Development Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,113

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 · 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 March 14, 2019.

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June 04, 2019 Filed Jun 6, 2019 00:12 UTC
MATHER ANNDirector
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 15,000 $0.00 Strike: $8.77 $0.00
Disclosure

SEC source: 0001596532-19-000162 · edgardoc.xml · derivative · entry 5

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2023-06-06

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 · 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 March 14, 2019.

F5 · derivative.exercise_date: 1/5th of the 30,000 shares subject to the option vested and became exercisable on June 3, 2014 and 1/60th of the shares subject to the option vested monthly thereafter.

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June 04, 2019 Filed Jun 6, 2019 00:12 UTC
MATHER ANNDirector
SaleCommon Stock 89 $252.17 $22,443.53
Disclosure

SEC source: 0001596532-19-000162 · edgardoc.xml · nonDerivative · entry 4

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

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 March 14, 2019.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $252.17 to $252.18, inclusive. The reporting person undertakes to provide 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.

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June 04, 2019 Filed Jun 6, 2019 00:12 UTC
MATHER ANNDirector
SaleCommon Stock 4,488 $251.51 $1,128,775.08
Disclosure

SEC source: 0001596532-19-000162 · edgardoc.xml · nonDerivative · entry 3

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,589

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 March 14, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $251.02 to $251.87, inclusive. The reporting person undertakes to provide 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.

Read SEC document
June 04, 2019 Filed Jun 6, 2019 00:12 UTC
MATHER ANNDirector
SaleCommon Stock 12,923 $250.23 $3,233,693.86
Disclosure

SEC source: 0001596532-19-000162 · edgardoc.xml · nonDerivative · entry 2

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,077

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 March 14, 2019.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $250.00 to $250.99, inclusive. The reporting person undertakes to provide 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.

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June 04, 2019 Filed Jun 6, 2019 00:12 UTC
MATHER ANNDirector
Exercise / conversionCommon Stock 15,000 $8.77 $131,550.00
Disclosure

SEC source: 0001596532-19-000162 · edgardoc.xml · nonDerivative · entry 1

MATHER ANN · CIK 0001244892 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

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 · 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 March 14, 2019.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 445 $246.55 $109,714.08
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 6

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,586

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $246.25 to $246.73, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 791 $245.55 $194,227.76
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 5

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,031

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $245.24 to $245.83, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 1,100 $244.70 $269,171.98
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 4

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,822

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $244.21 to $245.14, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 1,108 $243.70 $270,018.94
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 3

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,922

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $243.17 to $244.11, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 800 $242.68 $194,147.04
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 2

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,030

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $241.98 to $242.97, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Brennan Ita MSenior Vice President, CFO
SaleCommon Stock 756 $241.29 $182,417.05
Disclosure

SEC source: 0001596532-19-000163 · edgardoc.xml · nonDerivative · entry 1

Brennan Ita M · CIK 0001494211 · Senior Vice President, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,830

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 11, 2018.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $240.94 to $241.74, 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 167 $0.00 Strike: $68.34 $0.00
Disclosure

SEC source: 0001596532-19-000164 · edgardoc.xml · derivative · entry 16

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 167 shares

Expires 2024-12-15

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

F10 · derivative.exercise_date: 1/5th of the 10,000 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.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 250 $0.00 Strike: $65.01 $0.00
Disclosure

SEC source: 0001596532-19-000164 · edgardoc.xml · derivative · entry 15

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,500

Underlying: Common Stock · 250 shares

Expires 2026-04-07

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

F9 · derivative.exercise_date: 1/60th of the 15,000 shares subject to the option vested and became exercisable on April 28, 2016 and 1/60th of the shares subject to the option shall vest monthly thereafter.

Read SEC document
June 03, 2019 Filed Jun 6, 2019 00:13 UTC
Taxay MarcSVP and General Counsel
Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 167 $0.00 Strike: $64.46 $0.00
Disclosure

SEC source: 0001596532-19-000164 · edgardoc.xml · derivative · entry 14

Taxay Marc · CIK 0001672685 · SVP and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 167 shares

Expires 2025-09-10

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 · kind: The exercise and sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on September 14, 2018.

F8 · derivative.exercise_date: 1/5th of the 10,000 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.