Last 12 months
Inside the activity.
0 purchase rows · 577 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 34 |
| Dec 2025 | 0 | 18 |
| Jan 2026 | 0 | 16 |
| Feb 2026 | 0 | 30 |
| Mar 2026 | 0 | 19 |
| Apr 2026 | 0 | 52 |
| May 2026 | 0 | 47 |
| Jun 2026 | 0 | 62 |
| Jul 2026 | 0 | 66 |
| Aug 2026 | 0 | 176 |
| Sep 2026 | 0 | 33 |
| Oct 2026 | 0 | 24 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 17, 2026 Filed Sep 21, 2026 23:06 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 32,836 | $195.47 | $6,418,528.44 |
DisclosureSEC source: 0001596532-26-000230 · edgardoc.xml · nonDerivative · entry 3 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,773,773 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.00 to $195.99, 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. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| September 17, 2026 Filed Sep 21, 2026 23:06 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 29,271 | $194.52 | $5,693,888.59 |
DisclosureSEC source: 0001596532-26-000230 · edgardoc.xml · nonDerivative · entry 2 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,806,609 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.00 to $194.99, 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. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| September 17, 2026 Filed Sep 21, 2026 23:06 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 7,168 | $193.61 | $1,387,819.42 |
DisclosureSEC source: 0001596532-26-000230 · edgardoc.xml · nonDerivative · entry 1 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,835,880 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $192.98 to $193.96, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| September 10, 2026 Filed Sep 14, 2026 23:05 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 57,232 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000228 · edgardoc.xml · nonDerivative · entry 3 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 81,927 F5 · shares: Represents an aggregate of 57,232 shares transferred by the GRAT of the reporting person (28,616) and the GRAT of the reporting person's spouse (28,616) to the Family Trust. F6 · ownership.nature: These shares are held by a family trust for which the reporting person is co-trustee. Read SEC document |
| September 10, 2026 Filed Sep 14, 2026 23:05 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 28,616 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000228 · edgardoc.xml · nonDerivative · entry 2 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT KD Disclosed balance after: 690,621 F3 · shares: Represents 28,616 shares from the Kenneth Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F4 · ownership.nature: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. Read SEC document |
| September 10, 2026 Filed Sep 14, 2026 23:05 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 28,616 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000228 · edgardoc.xml · nonDerivative · entry 1 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT JD Disclosed balance after: 692,104 F1 · shares: Represents 28,616 shares from the Jennifer Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F2 · ownership.nature: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
TEMPLETON MARK BDirector
|
SaleCommon Stock | 300 | $199.32 | $59,795.01 |
DisclosureSEC source: 0001596532-26-000226 · edgardoc.xml · nonDerivative · entry 5 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 53,410 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.21 to $199.38, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
TEMPLETON MARK BDirector
|
SaleCommon Stock | 1,700 | $198.44 | $337,343.92 |
DisclosureSEC source: 0001596532-26-000226 · edgardoc.xml · nonDerivative · entry 4 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 53,710 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $198.03 to $198.96, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
TEMPLETON MARK BDirector
|
SaleCommon Stock | 1,000 | $197.46 | $197,459.80 |
DisclosureSEC source: 0001596532-26-000226 · edgardoc.xml · nonDerivative · entry 3 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 55,410 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $197.01 to $197.97, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
TEMPLETON MARK BDirector
|
SaleCommon Stock | 700 | $196.20 | $137,339.02 |
DisclosureSEC source: 0001596532-26-000226 · edgardoc.xml · nonDerivative · entry 2 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 56,410 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.81 to $196.70, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
TEMPLETON MARK BDirector
|
SaleCommon Stock | 1,300 | $195.27 | $253,849.96 |
DisclosureSEC source: 0001596532-26-000226 · edgardoc.xml · nonDerivative · entry 1 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 57,110 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.81 to $195.67, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 200,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000225 · edgardoc.xml · nonDerivative · entry 3 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 24,695 F5 · shares: Represents an aggregate of 200,000 shares contributed to the GRAT of the Reporting Person (100,000 shares), and GRAT of the Reporting Person's spouse (100,000 shares) F6 · ownership.nature: These shares are held by a family trust for which the reporting person is co-trustee. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 100,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000225 · edgardoc.xml · nonDerivative · entry 2 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT KD Disclosed balance after: 719,237 F3 · shares: Represents 100,000 shares transferred from the Family Trust to the GRAT of the Reporting Person. F4 · ownership.nature: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. Read SEC document |
| September 08, 2026 Filed Sep 10, 2026 23:47 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 100,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000225 · edgardoc.xml · nonDerivative · entry 1 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT JD Disclosed balance after: 720,720 F1 · shares: Represents 100,000 shares transferred from the Family Trust to the GRAT of the Reporting Person's Spouse. F2 · ownership.nature: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Read SEC document |
| September 01, 2026 Filed Sep 3, 2026 22:56 UTC |
Breithaupt Chantelle YvetteSenior Vice President, CFO
|
SaleCommon Stock | 612 | $195.77 | $119,811.24 |
DisclosureSEC source: 0001596532-26-000222 · edgardoc.xml · nonDerivative · entry 1 Breithaupt Chantelle Yvette · CIK 0001850596 · Senior Vice President, CFO 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 69,921 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on December 11, 2025 and modified on June 2, 2026. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 102,320 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 9 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · by Trust Disclosed balance after: 224,695 F12 · shares: Represents an aggregate of 102,320 shares transferred by the GRAT of the reporting person (51,160) and the GRAT of the reporting person's spouse (51,160) to the Family Trust. F13 · ownership.nature: These shares are held by a family trust for which the reporting person is co-trustee. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 42,937 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 8 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT KD Disclosed balance after: 619,237 F11 · shares: Represents 42,937 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. F9 · ownership.nature: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 42,938 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 7 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT KD Disclosed balance after: 662,174 F10 · shares: Represents 42,938 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. F9 · ownership.nature: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 51,160 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 6 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT KD Disclosed balance after: 705,112 F8 · shares: Represents 51,160 shares from the Kenneth Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F9 · ownership.nature: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 42,938 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 5 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT JD Disclosed balance after: 620,720 F7 · shares: Represents 42,938 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. F5 · ownership.nature: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 42,937 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 4 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT JD Disclosed balance after: 663,658 F6 · shares: Represents 42,937 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. F5 · ownership.nature: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 51,160 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 3 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By GRAT JD Disclosed balance after: 706,595 F4 · shares: Represents 51,160 shares from the Jennifer Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F5 · ownership.nature: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 85,875 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 2 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By Childrens' Trust Disclosed balance after: 1,186,918 F3 · shares: Represents 85,875 shares from the Jennifer Duda Annuity Trust to the Children's Trust. F2 · ownership.nature: These shares are held in multiple trusts 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. Read SEC document |
| August 28, 2026 Filed Sep 1, 2026 22:18 UTC |
Duda KennethDirector · President and CTO
|
OtherCommon Stock | 85,875 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000220 · edgardoc.xml · nonDerivative · entry 1 Duda Kenneth · CIK 0001605808 · Director · President and CTO 10b5-1 filing: No plan indicated Ownership: Indirect · By Childrens' Trust Disclosed balance after: 1,101,043 F1 · shares: Represents 85,875 shares from the Ken Duda Annuity Trust to the Children's Trust. F2 · ownership.nature: These shares are held in multiple trusts 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. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 5,646 | $205.45 | $1,159,972.39 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 7 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,843,048 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.25 to $205.53, 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 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 64,510 | $204.82 | $13,213,222.04 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 6 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,848,694 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.25 to $205.24, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 20,852 | $203.69 | $4,247,354.31 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 5 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,913,204 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.25 to $204.24, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 73,794 | $202.71 | $14,958,958.85 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 4 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 180,934,056 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.25 to $203.2475, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 70,054 | $201.74 | $14,132,420.75 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 3 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 181,007,850 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.25 to $202.245, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 50,091 | $200.81 | $10,058,934.00 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 2 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 181,077,904 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.25 to $201.245, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 27, 2026 Filed Aug 31, 2026 22:45 UTC |
BECHTOLSHEIM ANDREAS10% owner
|
SaleCommon Stock | 15,053 | $199.91 | $3,009,185.02 |
DisclosureSEC source: 0001596532-26-000218 · edgardoc.xml · nonDerivative · entry 1 BECHTOLSHEIM ANDREAS · CIK 0001133206 · 10% owner 10b5-1 filing: Plan reported Ownership: Indirect · by Trust Disclosed balance after: 181,127,995 F1 · kind: The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.25 to $200.24, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3 · ownership.nature: These shares are held by a family trust for which the reporting person is a trustee. Read SEC document |
| August 25, 2026 Filed Aug 27, 2026 22:21 UTC |
Ullal JayshreeDirector · CEO and Chairperson
|
SaleCommon Stock | 400 | $192.64 | $77,055.00 |
DisclosureSEC source: 0001596532-26-000216 · edgardoc.xml · nonDerivative · entry 3 Ullal Jayshree · CIK 0001605809 · Director · CEO and Chairperson 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 9,917 F1 · kind: 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. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $192.52 to $192.85, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 25, 2026 Filed Aug 27, 2026 22:21 UTC |
Ullal JayshreeDirector · CEO and Chairperson
|
SaleCommon Stock | 10,128 | $191.99 | $1,944,433.20 |
DisclosureSEC source: 0001596532-26-000216 · edgardoc.xml · nonDerivative · entry 2 Ullal Jayshree · CIK 0001605809 · Director · CEO and Chairperson 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,317 F1 · kind: 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. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $191.51 to $192.50, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 25, 2026 Filed Aug 27, 2026 22:21 UTC |
Ullal JayshreeDirector · CEO and Chairperson
|
SaleCommon Stock | 3,281 | $191.10 | $627,003.04 |
DisclosureSEC source: 0001596532-26-000216 · edgardoc.xml · nonDerivative · entry 1 Ullal Jayshree · CIK 0001605809 · Director · CEO and Chairperson 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 20,445 F1 · kind: 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 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.51 to $191.495, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 22:53 UTC |
Battles Kelly BodnarDirector
|
SaleCommon Stock | 213 | $188.69 | $40,191.40 |
DisclosureSEC source: 0001596532-26-000214 · edgardoc.xml · nonDerivative · entry 5 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,194 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 10, 2025. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.45 to $189.24, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 22:53 UTC |
Battles Kelly BodnarDirector
|
SaleCommon Stock | 40 | $187.77 | $7,510.95 |
DisclosureSEC source: 0001596532-26-000214 · edgardoc.xml · nonDerivative · entry 4 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,407 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 10, 2025. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.35 to $188.32, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 22:53 UTC |
Battles Kelly BodnarDirector
|
SaleCommon Stock | 35 | $186.93 | $6,542.41 |
DisclosureSEC source: 0001596532-26-000214 · edgardoc.xml · nonDerivative · entry 3 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,447 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 10, 2025. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.32 to $187.31, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 22:53 UTC |
Battles Kelly BodnarDirector
|
SaleCommon Stock | 64 | $185.61 | $11,878.98 |
DisclosureSEC source: 0001596532-26-000214 · edgardoc.xml · nonDerivative · entry 2 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,482 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 10, 2025. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.17 to $186.12, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 22:53 UTC |
Battles Kelly BodnarDirector
|
SaleCommon Stock | 70 | $184.77 | $12,933.75 |
DisclosureSEC source: 0001596532-26-000214 · edgardoc.xml · nonDerivative · entry 1 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,546 F1 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 10, 2025. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.12 to $185.11, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:11 UTC |
Battles Kelly BodnarDirector
|
Exercise / conversionRestricted Stock Unit-7 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000202 · edgardoc.xml · derivative · entry 2 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:11 UTC |
Battles Kelly BodnarDirector
|
Exercise / conversionCommon Stock | 538 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000202 · edgardoc.xml · nonDerivative · entry 1 Battles Kelly Bodnar · CIK 0001817763 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,616 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
CHEW LEWISDirector
|
Exercise / conversionRestricted Stock Unit-6 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000203 · edgardoc.xml · derivative · entry 2 CHEW LEWIS · CIK 0001224994 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
CHEW LEWISDirector
|
Exercise / conversionCommon Stock | 538 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000203 · edgardoc.xml · nonDerivative · entry 1 CHEW LEWIS · CIK 0001224994 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 31,770 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Giancarlo Charles HDirector
|
Exercise / conversionRestricted Stock Unit-7 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000204 · edgardoc.xml · derivative · entry 3 Giancarlo Charles H · CIK 0001299634 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Giancarlo Charles HDirector
|
Exercise / conversionCommon Stock | 538 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000204 · edgardoc.xml · nonDerivative · entry 1 Giancarlo Charles H · CIK 0001299634 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,509 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Lavender Robert GDirector
|
Exercise / conversionRestricted Stock Unit-3 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000205 · edgardoc.xml · derivative · entry 2 Lavender Robert G · CIK 0002058736 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Lavender Robert GDirector
|
Exercise / conversionCommon Stock | 538 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000205 · edgardoc.xml · nonDerivative · entry 1 Lavender Robert G · CIK 0002058736 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,607 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Scheinman DanielDirector
|
Exercise / conversionRestricted Stock Unit-7 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000206 · edgardoc.xml · derivative · entry 2 Scheinman Daniel · CIK 0001605698 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F2 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
Scheinman DanielDirector
|
Exercise / conversionCommon Stock | 538 | $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000206 · edgardoc.xml · nonDerivative · entry 1 Scheinman Daniel · CIK 0001605698 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 158,730 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. Read SEC document |
| August 20, 2026 Filed Aug 24, 2026 22:12 UTC |
TEMPLETON MARK BDirector
|
Exercise / conversionRestricted Stock Unit-8 · Derivative | 538 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001596532-26-000207 · edgardoc.xml · derivative · entry 3 TEMPLETON MARK B · CIK 0001201938 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,615 Underlying: Common Stock · 538 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.