4Filing Date: Sep 10, 2026

Arista Networks (ANET)

Statement of Changes in Beneficial Ownership

View SEC Filing
ACC: 0001596532-26-000226
Total Value$985.8K
Trades6
Insiders1

Transaction Details

TEMPLETON MARK B
Director·Direct
Sell · Dispose
Common Stock
Shares-700
Price$196.20
Total Value$137.3K
Shares Owned After56.41K
Transaction DateSep 8, 2026
10b5-1
Footnotes ▸

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. | 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.

TEMPLETON MARK B
Director·Direct
Sell · Dispose
Common Stock
Shares-1.70K
Price$198.44
Total Value$337.3K
Shares Owned After53.71K
Transaction DateSep 8, 2026
10b5-1
Footnotes ▸

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. | 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.

TEMPLETON MARK B
Director·Direct
Sell · Dispose
Common Stock
Shares-300
Price$199.32
Total Value$59.8K
Shares Owned After53.41K
Transaction DateSep 8, 2026
10b5-1
Footnotes ▸

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. | 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.

TEMPLETON MARK B
Director·Direct
Sell · Dispose
Common Stock
Shares-1.30K
Price$195.27
Total Value$253.8K
Shares Owned After57.11K
Transaction DateSep 8, 2026
10b5-1
Footnotes ▸

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. | 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.

TEMPLETON MARK B
Director·Direct
Sell · Dispose
Common Stock
Shares-1.00K
Price$197.46
Total Value$197.5K
Shares Owned After55.41K
Transaction DateSep 8, 2026
10b5-1
Footnotes ▸

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 9, 2026. | 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.

TEMPLETON MARK B
Director·Indirect · by Spouse
Common Stock
Shares0
Price-
Total Value$0
Shares Owned After75.20K
10b5-1Holding Only
Footnotes ▸

These shares are held in a trust for which the reporting person's spouse serves as trustee.

Post-Transaction Holdings

TEMPLETON MARK B · Director
SecuritySharesChange
Common Stock131.61K-5.00K (-3.66%)
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Deep Analysis

Director Mark Templeton sold 5,000 Arista Networks shares for about $986K in a single-day open-market sale under a pre-set 10b5-1 plan — a clean net reduction with no offsetting buy.

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Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-08 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: Arista Networks, Inc. (ANET) CIK: 0001596532 --- Reporting Owner --- Name: TEMPLETON MARK B CIK: 0001201938 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-08 | Code: S (Open market sale) Shares: -1,300 | Price: $195.27 Total Value: $253,849.96 Shares Owned After: 57,110 | Ownership: D (Direct) Footnotes: [F1] 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] 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. [Transaction #2] Security: Common Stock Date: 2026-09-08 | Code: S (Open market sale) Shares: -700 | Price: $196.20 Total Value: $137,339.02 Shares Owned After: 56,410 | Ownership: D (Direct) Footnotes: [F1] 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] 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. [Transaction #3] Security: Common Stock Date: 2026-09-08 | Code: S (Open market sale) Shares: -1,000 | Price: $197.46 Total Value: $197,459.80 Shares Owned After: 55,410 | Ownership: D (Direct) Footnotes: [F1] 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] 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. [Transaction #4] Security: Common Stock Date: 2026-09-08 | Code: S (Open market sale) Shares: -1,700 | Price: $198.44 Total Value: $337,343.92 Shares Owned After: 53,710 | Ownership: D (Direct) Footnotes: [F1] 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] 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. [Transaction #5] Security: Common Stock Date: 2026-09-08 | Code: S (Open market sale) Shares: -300 | Price: $199.32 Total Value: $59,795.01 Shares Owned After: 53,410 | Ownership: D (Direct) Footnotes: [F1] 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] 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. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F7] These shares are held in a trust for which the reporting person's spouse serves as trustee. --- Footnotes (Complete Index) --- F1: 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: 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. F3: 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. F4: 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. F5: 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. F6: 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. F7: These shares are held in a trust for which the reporting person's spouse serves as trustee. --- Signature --- /s/ By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Mark Templeton (2026-09-10)

keid analysis is for reference only and does not constitute investment advice.