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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F1, F12

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F7, F8

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F7, F4, F8

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F7, F3, F8

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F7, F2, F8

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F5, F6

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F5, F4, F6

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F5, F3, F6

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

References: F5, F2, F6

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

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 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 $169.28 to $170.27, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.28 to $171.21, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.33 to $172.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5 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 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.

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

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

F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

F11 These shares are held by a family trust for which the reporting person is co-trustee.

F12 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.

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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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, F12, 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 $175.69 to $176.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.69 to $177.65, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $177.69 to $178.685, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $178.70 to $179.68, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.73 to $180.715, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $180.73 to $181.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $181.73 to $182.7275, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $182.73 to $183.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $183.73 to $184.725, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 $184.73 to $185.4375, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and 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 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 relatives 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 $187.00 to $187.42, 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 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.

F4 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.

F5 These shares are held by a family trust for which the reporting person is co-trustee.

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.

References: F4, F2, F5