Arista Networks, Inc. (ANET) Insider Transactions

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1, F5

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1, F4

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1, F3

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

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 February 20, 2026.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.545 to $158.53, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.55 to $159.52, 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 $159.555 to $160.545, 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 $160.57 to $161.555, 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 $161.57 to $162.555, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.60 to $163.585, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.60 to $164.595, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.60 to $165.595, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.60 to $166.485, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.62 to $167.615, 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.

F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.625 to $167.745, 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 These shares are held by a family trust for which the reporting person is a trustee.

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

F15 1/48th of the shares subject to the option vested and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F11, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F10, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F9, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F8, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F7, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F6, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F5, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F4, F3

Reported filing row; may be amended. Do not sum filings blindly.

F1 This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.08 to $163.00, 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 These shares are held by a family trust for which the reporting person is 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 $164.00 to $164.99, 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 $165.29 to $166.25, 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 $166.29 to $167.26, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.30 to $168.26, 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 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.31 to $169.30, 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.

F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.32 to $170.31, 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.

F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.32 to $171.31, 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.

F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.32 to $172.28, 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.

References: F1, F2, F3

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

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

F2 The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

References: F1, F2

Reported filing row; may be amended. Do not sum filings blindly.

F1 The exercises and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 14, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.00 to $154.97, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.00 to $155.95, 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.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.00 to $156.52, 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 These shares are held in 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.

F6 These shares are held in trust for the benefit of relatives 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.

F7 These shares are held by a family trust for which the reporting person is co-trustee.

References: F1

Reported filing row; may be amended. Do not sum filings blindly.

F1 The exercises and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 14, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.00 to $154.97, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.00 to $155.95, 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.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.00 to $156.52, 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 These shares are held in 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.

F6 These shares are held in trust for the benefit of relatives 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.

F7 These shares are held by a family trust for which the reporting person is co-trustee.

References: F1, F4

Reported filing row; may be amended. Do not sum filings blindly.

F1 The exercises and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 14, 2025.

F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.00 to $154.97, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.00 to $155.95, 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.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.00 to $156.52, 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 These shares are held in 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.

F6 These shares are held in trust for the benefit of relatives 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.

F7 These shares are held by a family trust for which the reporting person is co-trustee.

References: F1, F3