Jayshree Ullal - 08 Oct 2026 Form 4 Insider Report for Arista Networks, Inc. (ANET)

Reporting relationship: CEO and Chairperson, Director
Issuer ticker: ANET
Reported as of: 08 Oct 2026
Net transaction value: -$34,417,690
SEC form: 4
Accepted by SEC: 13 Oct 2026, 19:09:50 UTC
Prior SEC filing: 09 Oct 2026
Source filing: View source filing
Reporting owner signature: By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Jayshree Ullal

Filing notes and source

Key filing fact

Jayshree Ullal filed Form 4 for Arista Networks, Inc. (ANET) on 13 Oct 2026.

Key facts

This page summarizes Jayshree Ullal's Form 4 filing for Arista Networks, Inc. (ANET).
6 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 13 Oct 2026, 19:09.

Change

Previous filing in this sequence was filed on 09 Oct 2026.
Current net transaction value: -$34,417,690.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001605809 Primary reporting owner

Ullal Jayshree

Relationship: CEO and Chairperson, Director
Address: 5453 GREAT AMERICA PARKWAY, SANTA CLARA
Signature: By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Jayshree Ullal
Signature date: 13 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ANET transaction

Common Stock

Sale

Transaction value: -$868,193
Shares: -4,000
Change %: -0.08%
Price: $217.05
Shares after: 4,793,347
Date: 08 Oct 2026
Ownership: By Trust for Child 1
Footnotes: F1, F2, F3

ANET transaction

Common Stock

Sale

Transaction value: -$4,050,139
Shares: -18,656
Change %: -0.39%
Price: $217.10
Shares after: 4,774,691
Date: 09 Oct 2026
Ownership: By Trust for Child 1
Footnotes: F1, F3, F4

ANET transaction

Common Stock

Sale

Transaction value: -$868,193
Shares: -4,000
Change %: -0.08%
Price: $217.05
Shares after: 4,793,347
Date: 08 Oct 2026
Ownership: By Trust for Child 2
Footnotes: F1, F2, F3

ANET transaction

Common Stock

Sale

Transaction value: -$4,050,139
Shares: -18,656
Change %: -0.39%
Price: $217.10
Shares after: 4,774,691
Date: 09 Oct 2026
Ownership: By Trust for Child 2
Footnotes: F1, F3, F4

ANET transaction

Common Stock

Sale

Transaction value: -$4,338,796
Shares: -19,990
Change %: -0.13%
Price: $217.05
Shares after: 15,525,748
Date: 08 Oct 2026
Ownership: by Trust
Footnotes: F2, F5, F6

ANET transaction

Common Stock

Sale

Transaction value: -$20,242,229
Shares: -93,241
Change %: -0.6%
Price: $217.10
Shares after: 15,432,507
Date: 09 Oct 2026
Ownership: by Trust
Footnotes: F4, F5, F6

ANET holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 9,917
Date: 08 Oct 2026
Ownership: Direct

ANET holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 25,000
Date: 08 Oct 2026
Ownership: By Trust for Nephew
Footnotes: F7

ANET holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 25,000
Date: 08 Oct 2026
Ownership: By Trust for Niece
Footnotes: F7

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 7 footnotes

Footnote 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.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $217.00 to $217.215, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $217.00 to $217.35, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F5

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.

Footnote F6

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

Footnote F7

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.