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Duda Kenneth

Disclosed activity across 1 company

Tapewire entity
10329
SEC CIK
0001605808

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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

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 145 $234.49 $34,001.09
Disclosure

SEC source: 0001596532-18-000225 · 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: 820,668

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 2018.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $234.18 to $234.63, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 800 $233.35 $186,676.48
Disclosure

SEC source: 0001596532-18-000225 · 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: 820,813

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 2018.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $232.75 to $233.62, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 400 $231.42 $92,568.00
Disclosure

SEC source: 0001596532-18-000225 · 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: 821,613

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 2018.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $230.98 to $231.80, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,000 $230.25 $230,248.00
Disclosure

SEC source: 0001596532-18-000225 · 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: 822,013

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $229.92 to $230.71, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,417 $229.26 $1,012,631.26
Disclosure

SEC source: 0001596532-18-000225 · 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: 823,013

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $228.86 to $229.82, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,029 $228.37 $463,364.56
Disclosure

SEC source: 0001596532-18-000225 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 827,430

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $227.82 to $228.81, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 1,500 $227.24 $340,861.50
Disclosure

SEC source: 0001596532-18-000225 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 829,459

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $226.8050 to $227.77, 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.

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

Read SEC document
October 10, 2018 Filed Oct 12, 2018 22:15 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 609 $225.89 $137,564.45
Disclosure

SEC source: 0001596532-18-000225 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 830,959

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $225.68 to $226.34, 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.

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

Read SEC document
September 10, 2018 Filed Sep 12, 2018 22:31 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,662 $268.63 $715,082.15
Disclosure

SEC source: 0001596532-18-000219 · 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: 831,568

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $268.27 to $269.17 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
September 10, 2018 Filed Sep 12, 2018 22:31 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,232 $267.65 $1,132,692.68
Disclosure

SEC source: 0001596532-18-000219 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 834,230

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $267.19 to $268.17 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
September 10, 2018 Filed Sep 12, 2018 22:31 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,506 $266.72 $935,136.10
Disclosure

SEC source: 0001596532-18-000219 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 838,462

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $266.15 to $267.13 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
September 10, 2018 Filed Sep 12, 2018 22:31 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 600 $265.88 $159,526.98
Disclosure

SEC source: 0001596532-18-000219 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 841,968

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $265.13 to $266.12 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
August 20, 2018 Filed Aug 23, 2018 01:21 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-2 · Derivative 1,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000193 · edgardoc.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,000

Underlying: Common Stock · 1,000 shares

Expires not disclosed

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

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

F8 · derivative.exercise_date: Five percent (5%) of the 20,000 restricted stock units awarded vested on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

F8 · derivative.expiration_date: Five percent (5%) of the 20,000 restricted stock units awarded vested on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

Read SEC document
August 20, 2018 Filed Aug 23, 2018 01:21 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-1 · Derivative 625 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000193 · edgardoc.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,625

Underlying: Common Stock · 625 shares

Expires not disclosed

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

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

F7 · derivative.exercise_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

F7 · derivative.expiration_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

Read SEC document
August 20, 2018 Filed Aug 23, 2018 01:21 UTC Arista Networks, Inc. ANET · Entity 2421 Tax withholdingCommon Stock 806 $273.72 $220,618.32
Disclosure

SEC source: 0001596532-18-000193 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,664

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

Read SEC document
August 20, 2018 Filed Aug 23, 2018 01:21 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 1,000 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000193 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,470

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

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

Read SEC document
August 20, 2018 Filed Aug 23, 2018 01:21 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 625 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000193 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,470

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

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

Read SEC document
August 10, 2018 Filed Aug 14, 2018 21:54 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 202 $270.44 $54,629.63
Disclosure

SEC source: 0001596532-18-000176 · 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: 842,568

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $270.31 to $270.56, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

Read SEC document
August 10, 2018 Filed Aug 14, 2018 21:54 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,328 $269.58 $627,593.41
Disclosure

SEC source: 0001596532-18-000176 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 842,770

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $269.24 to $270.15, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
August 10, 2018 Filed Aug 14, 2018 21:54 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 5,796 $268.82 $1,558,095.79
Disclosure

SEC source: 0001596532-18-000176 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 845,098

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $268.19 to $269.17, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
August 10, 2018 Filed Aug 14, 2018 21:54 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,674 $267.65 $715,701.18
Disclosure

SEC source: 0001596532-18-000176 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 850,894

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $267.15 to $268.13, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
July 10, 2018 Filed Jul 12, 2018 23:26 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 394 $271.05 $106,793.03
Disclosure

SEC source: 0001596532-18-000160 · 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: 853,568

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $270.94 to $271.42, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
July 10, 2018 Filed Jul 12, 2018 23:26 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,225 $270.35 $871,883.91
Disclosure

SEC source: 0001596532-18-000160 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 853,962

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $269.88 to $270.86, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
July 10, 2018 Filed Jul 12, 2018 23:26 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,519 $269.25 $947,500.25
Disclosure

SEC source: 0001596532-18-000160 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 857,187

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $268.87 to $269.84, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

Read SEC document
July 10, 2018 Filed Jul 12, 2018 23:26 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,862 $268.47 $1,036,848.13
Disclosure

SEC source: 0001596532-18-000160 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 860,706

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $267.87 to $268.86, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 309 $276.26 $85,363.38
Disclosure

SEC source: 0001596532-18-000152 · 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: 864,568

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 2018.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $276.00 to $276.56, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 891 $275.42 $245,396.64
Disclosure

SEC source: 0001596532-18-000152 · 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: 864,877

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $274.82 to $275.81, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 500 $274.18 $137,091.00
Disclosure

SEC source: 0001596532-18-000152 · 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: 865,768

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $273.75 to $274.67, 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.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,184 $273.02 $596,286.16
Disclosure

SEC source: 0001596532-18-000152 · 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: 866,268

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $272.66 to $273.56, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 6,216 $272.10 $1,691,385.41
Disclosure

SEC source: 0001596532-18-000152 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 868,452

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $271.63 to $272.60, 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.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 900 $270.86 $243,777.78
Disclosure

SEC source: 0001596532-18-000152 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 874,668

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $270.53 to $271.48, 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.

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
June 11, 2018 Filed Jun 13, 2018 22:06 UTC Arista Networks, Inc. ANET · Entity 2421 GiftCommon Stock 3,000 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000152 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 875,568

F1 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
May 21, 2018 Filed May 23, 2018 21:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-2 · Derivative 1,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000127 · edgardoc.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,000

Underlying: Common Stock · 1,000 shares

Expires not disclosed

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

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

F8 · derivative.exercise_date: Five percent (5%) of the 20,000 restricted stock units awarded will vest on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

F8 · derivative.expiration_date: Five percent (5%) of the 20,000 restricted stock units awarded will vest on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

Read SEC document
May 21, 2018 Filed May 23, 2018 21:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-1 · Derivative 625 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000127 · edgardoc.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,250

Underlying: Common Stock · 625 shares

Expires not disclosed

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

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

F7 · derivative.exercise_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

F7 · derivative.expiration_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

Read SEC document
May 21, 2018 Filed May 23, 2018 21:56 UTC Arista Networks, Inc. ANET · Entity 2421 Tax withholdingCommon Stock 614 $254.25 $156,109.50
Disclosure

SEC source: 0001596532-18-000127 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,845

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

Read SEC document
May 21, 2018 Filed May 23, 2018 21:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 1,000 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000127 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,459

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

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

Read SEC document
May 21, 2018 Filed May 23, 2018 21:56 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 625 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000127 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,459

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

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

Read SEC document
May 10, 2018 Filed May 15, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 4,502 $261.39 $1,176,766.07
Disclosure

SEC source: 0001596532-18-000113 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 878,568

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $261.13 to $261.71, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
May 10, 2018 Filed May 15, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 2,828 $260.66 $737,158.07
Disclosure

SEC source: 0001596532-18-000113 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 883,070

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $260.12 to $261.10, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

Read SEC document
May 10, 2018 Filed May 15, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 3,670 $259.80 $953,473.71
Disclosure

SEC source: 0001596532-18-000113 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 885,898

F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 2, 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 $259.12 to $260.11, 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.

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

Read SEC document
April 13, 2018 Filed Apr 18, 2018 00:45 UTC Arista Networks, Inc. ANET · Entity 2421 GrantNon-Qualified Stock Option (right to buy) · Derivative 8,000 $0.00 Strike: $244.20 $0.00
Disclosure

SEC source: 0001596532-18-000094 · edgardoc.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Common Stock · 8,000 shares

Expires 2028-04-12

F1 · derivative.exercise_date: 1/48th of the shares subject to the option shall vest and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

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March 09, 2018 Filed Mar 14, 2018 00:58 UTC Arista Networks, Inc. ANET · Entity 2421 GrantRestricted Stock Unit-3 · Derivative 6,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000068 · edgardoc.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,000

Underlying: Common Stock · 6,000 shares

Expires not disclosed

F5 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.

F6 · derivative.exercise_date: Six and one-quarter percent (6.25%) of the restricted stock units awarded will vest on May 20, 2019 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, and November 20 of each year.

F6 · derivative.expiration_date: Six and one-quarter percent (6.25%) of the restricted stock units awarded will vest on May 20, 2019 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, and November 20 of each year.

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February 28, 2018 Filed Mar 14, 2018 00:58 UTC Arista Networks, Inc. ANET · Entity 2421 GiftCommon Stock 230 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000068 · 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: 470

F1 · ownership.nature: These shares are held in a trust for the benefit of the children of the reporting person for which the reporting person serves as trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

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February 28, 2018 Filed Mar 14, 2018 00:58 UTC Arista Networks, Inc. ANET · Entity 2421 GiftCommon Stock 230 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000068 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 834

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February 20, 2018 Filed Feb 23, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-2 · Derivative 1,000 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000034 · edgardoc.xml · derivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,000

Underlying: Common Stock · 1,000 shares

Expires not disclosed

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

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

F8 · derivative.exercise_date: Five percent (5%) of the 20,000 restricted stock units awarded will vest on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

F8 · derivative.expiration_date: Five percent (5%) of the 20,000 restricted stock units awarded will vest on February 20, 2018 and five percent (5%) of the award will continue to vest on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20 of each year.

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February 20, 2018 Filed Feb 23, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionRestricted Stock Unit-1 · Derivative 625 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000034 · edgardoc.xml · derivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,875

Underlying: Common Stock · 625 shares

Expires not disclosed

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

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

F7 · derivative.exercise_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

F7 · derivative.expiration_date: Six and one-quarter percent (6.25%) of the 10,000 restricted stock units awarded vested on February 20, 2017 and will continue to vest at a rate of six and one-quarter percent (6.25%) on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

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February 20, 2018 Filed Feb 23, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 Tax withholdingCommon Stock 561 $249.65 $140,053.65
Disclosure

SEC source: 0001596532-18-000034 · edgardoc.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,064

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

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February 20, 2018 Filed Feb 23, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 1,000 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000034 · edgardoc.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,625

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

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

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February 20, 2018 Filed Feb 23, 2018 01:27 UTC Arista Networks, Inc. ANET · Entity 2421 Exercise / conversionCommon Stock 625 $0.00 $0.00
Disclosure

SEC source: 0001596532-18-000034 · edgardoc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 625

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

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

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December 19, 2017 Filed Dec 21, 2017 22:55 UTC Amendment Arista Networks, Inc. ANET · Entity 2421 SaleCommon Stock 127,576 $235.15 $30,000,083.25
Disclosure

SEC source: 0001596532-17-000294 · primary_doc.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · by Trust

Disclosed balance after: 889,568

F1 · shares: On December 13, 2017, the reporting person made an irrevocable contribution of 130,000 shares of ANET common stock to an exchange fund in exchange for shares of the exchange fund. Upon the closing of the exchange fund on December 19, 2017, 127,576 shares of ANET common stock contributed by the reporting person were accepted by the exchange fund. The reporting person is amending this Form 4 to reflect the final number of shares accepted by the exchange fund and the value of such shares.

F1 · price: On December 13, 2017, the reporting person made an irrevocable contribution of 130,000 shares of ANET common stock to an exchange fund in exchange for shares of the exchange fund. Upon the closing of the exchange fund on December 19, 2017, 127,576 shares of ANET common stock contributed by the reporting person were accepted by the exchange fund. The reporting person is amending this Form 4 to reflect the final number of shares accepted by the exchange fund and the value of such shares.

F2 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee.

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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.