TapewireFind a company

person · Reporting owner

Duda Kenneth

Disclosed activity across 1 company

Tapewire entity
10329
SEC CIK
0001605808

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Arista Networks, Inc.ANET · Entity 2421Director · President and CTOSeptember 21, 2026September 23, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Arista Networks, Inc.

Report date September 21, 2026 · Filed September 23, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect12,976 Ending reported balance After 2026-09-21 transaction · row 6
6 source rows · reconciled sequence

Row 1 · 2026-09-21 · Exercise / conversion · Acquired 17,333 · Balance 30,309

F1: 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 11, 2026.

Row 2 · 2026-09-21 · Sale · Disposed 1,480 · Balance 28,829

F1: 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 11, 2026.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.09 to $202.08, 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.

Row 3 · 2026-09-21 · Sale · Disposed 7,420 · Balance 21,409

F1: 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 11, 2026.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.10 to $203.08, 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.

Row 4 · 2026-09-21 · Sale · Disposed 2,700 · Balance 18,709

F1: 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 11, 2026.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, 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.

Row 5 · 2026-09-21 · Sale · Disposed 3,533 · Balance 15,176

F1: 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 11, 2026.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.20 to $205.18, 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.

Row 6 · 2026-09-21 · Sale · Disposed 2,200 · Balance 12,976

F1: 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 11, 2026.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.20 to $205.95, 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.

Common StockSEC Table I · non-derivativeIndirectBy Childrens' Trust1,170,918 Last balance in matching sequence After 2026-09-21 transaction · row 11 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
5 source rows

Row 7 · 2026-09-21 · Sale · Disposed 1,366 · Balance 1,185,552

F7: 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 March 11, 2026.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.09 to $202.08, 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.

F8: 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.

Row 8 · 2026-09-21 · Sale · Disposed 6,849 · Balance 1,178,703

F7: 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 March 11, 2026.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.10 to $203.08, 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.

F8: 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.

Row 9 · 2026-09-21 · Sale · Disposed 2,492 · Balance 1,176,211

F7: 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 March 11, 2026.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, 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.

F8: 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.

Row 10 · 2026-09-21 · Sale · Disposed 3,262 · Balance 1,172,949

F7: 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 March 11, 2026.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.20 to $205.18, 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.

F8: 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.

Row 11 · 2026-09-21 · Sale · Disposed 2,031 · Balance 1,170,918

F7: 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 March 11, 2026.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.20 to $205.95, 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.

F8: 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.

Common StockSEC Table I · non-derivativeIndirectBy Foundation442,400 Last balance in matching sequence After 2026-09-21 transaction · row 16 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
5 source rows

Row 12 · 2026-09-21 · Sale · Disposed 854 · Balance 451,546

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.09 to $202.08, 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.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Row 13 · 2026-09-21 · Sale · Disposed 4,281 · Balance 447,265

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.10 to $203.08, 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.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Row 14 · 2026-09-21 · Sale · Disposed 1,558 · Balance 445,707

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, 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.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Row 15 · 2026-09-21 · Sale · Disposed 2,038 · Balance 443,669

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.20 to $205.18, 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.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Row 16 · 2026-09-21 · Sale · Disposed 1,269 · Balance 442,400

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.20 to $205.95, 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.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Non-Qualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $14.15 · Expires 2029-02-07Direct138,668 Reported balance After 2026-09-21 transaction · row 20 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 20 · 2026-09-21 · Exercise / conversion · Disposed 17,333 · Balance 138,668

F1: 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 11, 2026.

F14: 1/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

Common StockSEC Table I · non-derivativeIndirectBy GRAT JD692,104 Reported balance Holding disclosure · report date 2026-09-21 · row 17 Holding and transaction disclosures are not merged.
1 source row

Row 17 · Balance 692,104

F11: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

Common StockSEC Table I · non-derivativeIndirectBy GRAT KD690,621 Reported balance Holding disclosure · report date 2026-09-21 · row 18 Holding and transaction disclosures are not merged.
1 source row

Row 18 · Balance 690,621

F12: Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

Common StockSEC Table I · non-derivativeIndirectby Trust81,927 Reported balance Holding disclosure · report date 2026-09-21 · row 19 Holding and transaction disclosures are not merged.
1 source row

Row 19 · Balance 81,927

F13: These shares are held by a family trust for which the reporting person is co-trustee.

Filing footnotes · ownership attribution and instrument terms

F1: 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 11, 2026.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.09 to $202.08, 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.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.10 to $203.08, 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.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, 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.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.20 to $205.18, 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.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.20 to $205.95, 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.

F7: 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 March 11, 2026.

F8: 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.

F9: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F10: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

F11: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F12: Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F13: These shares are held by a family trust for which the reporting person is co-trustee.

F14: 1/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

Transaction history

JSON API
Reset

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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 754 $186.97 $140,975.23
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 10

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,015,168

F6 · 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 March 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.7331 to $187.16, 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.

F7 · 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 6,063 $186.13 $1,128,480.12
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 9

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,015,922

F6 · 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 March 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.7311 to $186.7213, 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.

F7 · 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 5,308 $185.18 $982,946.59
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 8

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,021,985

F6 · 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 March 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.72 to $185.719, 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.

F7 · 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,875 $184.33 $714,277.59
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 7

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,027,293

F6 · 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 March 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.72 to $184.7176, 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.

F7 · 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 818 $186.97 $152,941.30
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 6

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,976

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 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.7331 to $187.16, 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
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 6,568 $186.13 $1,222,473.60
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 5

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,794

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 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.7311 to $186.7213, 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
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 5,750 $185.18 $1,064,797.08
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 4

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,362

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 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.72 to $185.719, 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
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,197 $184.33 $773,631.75
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 3

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,112

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 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.72 to $184.7176, 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
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 3,999 $14.15 $56,571.05
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 2

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,309

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 11, 2026.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 22:14 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 13,334 $15.28 $203,702.18
Disclosure

SEC source: 0001596532-26-000210 · edgardoc.xml · nonDerivative · entry 1

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,310

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 11, 2026.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionNon-Qualified Stock Option (right to buy) · Derivative 17,333 $0.00 Strike: $15.28 $0.00
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · derivative · entry 17

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,334

Underlying: Common Stock · 17,333 shares

Expires 2028-11-08

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 11, 2026.

F12 · derivative.exercise_date: 1/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 23 $172.40 $3,965.20
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 13

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 462,400

F7 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F8 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 979 $171.72 $168,113.68
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 12

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 462,423

F7 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, 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.

F8 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 5,209 $170.73 $889,315.38
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 11

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 463,402

F7 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, 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.

F8 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,789 $169.90 $643,742.39
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 10

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 468,611

F7 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.28 to $170.27, 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.

F8 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 37 $172.40 $6,378.80
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 9

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,031,168

F5 · 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 March 11, 2026.

F6 · 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.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,567 $171.72 $269,084.93
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 8

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,031,205

F5 · 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 March 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, 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.

F6 · 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.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 8,334 $170.73 $1,422,836.32
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 7

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,032,772

F5 · 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 March 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, 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.

F6 · 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.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 6,062 $169.90 $1,029,919.86
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 6

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,041,106

F5 · 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 March 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.28 to $170.27, 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.

F6 · 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.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 40 $172.40 $6,896.00
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 5

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,976

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 11, 2026.

Read SEC document
July 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,698 $171.72 $291,580.22
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 4

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,016

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 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, 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 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 9,028 $170.73 $1,541,320.65
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 3

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,714

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 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, 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 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 6,567 $169.90 $1,115,718.20
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 2

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,742

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 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.28 to $170.27, 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 20, 2026 Filed Jul 22, 2026 22:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 17,333 $15.28 $264,794.51
Disclosure

SEC source: 0001596532-26-000166 · edgardoc.xml · nonDerivative · entry 1

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,309

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 11, 2026.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 46 $175.04 $8,051.84
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 28

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 472,400

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F13 · ownership.nature: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,244 $174.37 $391,283.14
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 27

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 472,446

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.04 to $174.91, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,341 $173.69 $232,923.39
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 26

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 474,690

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.03 to $174.02, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 531 $172.32 $91,503.83
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 25

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 476,031

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.97 to $172.93, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 903 $171.49 $154,852.04
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 24

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 476,562

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.95 to $171.93, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,012 $170.37 $172,411.10
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 23

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 477,465

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.95 to $170.94, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,617 $169.39 $443,288.66
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 22

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 478,477

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.95 to $169.91, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,052 $168.63 $177,400.97
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 21

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 481,094

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.95 to $168.92, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 254 $167.35 $42,506.19
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 20

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Foundation

Disclosed balance after: 482,146

F12 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.83 to $167.64, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 75 $175.04 $13,128.00
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 19

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,047,168

F10 · 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 March 11, 2026.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,590 $174.37 $625,983.27
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 18

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,047,243

F10 · 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 March 11, 2026.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.04 to $174.91, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,145 $173.69 $372,573.20
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 17

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,050,833

F10 · 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 March 11, 2026.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.03 to $174.02, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 850 $172.32 $146,475.06
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 16

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,052,978

F10 · 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 March 11, 2026.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.97 to $172.93, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,445 $171.49 $247,797.56
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 15

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,053,828

F10 · 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 March 11, 2026.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.95 to $171.93, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,619 $170.37 $275,823.69
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 14

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,055,273

F10 · 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 March 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.95 to $170.94, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,187 $169.39 $709,227.97
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 13

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,056,892

F10 · 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 March 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.95 to $169.91, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,683 $168.63 $283,807.82
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 12

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,061,079

F10 · 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 March 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.95 to $168.92, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 406 $167.35 $67,942.96
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 11

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Indirect · By Childrens' Trust

Disclosed balance after: 1,062,762

F10 · 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 March 11, 2026.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.83 to $167.64, 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.

F11 · 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.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 79 $175.04 $13,828.16
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 10

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,976

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 11, 2026.

Read SEC document
June 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,890 $174.37 $678,293.85
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 9

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,055

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 11, 2026.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.04 to $174.91, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,323 $173.69 $403,490.70
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 8

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,945

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 11, 2026.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.03 to $174.02, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 920 $172.32 $158,537.71
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 7

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 19,268

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 11, 2026.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.97 to $172.93, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,566 $171.49 $268,547.39
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 6

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,188

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 11, 2026.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.95 to $171.93, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,754 $170.37 $298,823.19
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 5

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,754

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 11, 2026.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.95 to $170.94, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,537 $169.39 $768,513.81
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 4

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,508

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 11, 2026.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.95 to $169.91, 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 22, 2026 Filed Jun 24, 2026 22:50 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,824 $168.63 $307,584.95
Disclosure

SEC source: 0001596532-26-000151 · edgardoc.xml · nonDerivative · entry 3

Duda Kenneth · CIK 0001605808 · Director · President and CTO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,045

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 11, 2026.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.95 to $168.92, 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

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