=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-10-08
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: Arista Networks, Inc. (ANET)
CIK: 0001596532
--- Reporting Owner ---
Name: Ullal Jayshree
CIK: 0001605809
Role: Director, Officer (CEO and Chairperson)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-10-08 | Code: S (Open market sale)
Shares: -4,000 | Price: $217.05
Total Value: $868,193.20
Shares Owned After: 4,793,347 | Ownership: I (Indirect) | Nature: By Trust for Child 1
Footnotes:
[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 $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.
[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.
[Transaction #2]
Security: Common Stock
Date: 2026-10-09 | Code: S (Open market sale)
Shares: -18,656 | Price: $217.10
Total Value: $4,050,139.24
Shares Owned After: 4,774,691 | Ownership: I (Indirect) | Nature: By Trust for Child 1
Footnotes:
[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.
[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.
[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.
[Transaction #3]
Security: Common Stock
Date: 2026-10-08 | Code: S (Open market sale)
Shares: -4,000 | Price: $217.05
Total Value: $868,193.20
Shares Owned After: 4,793,347 | Ownership: I (Indirect) | Nature: By Trust for Child 2
Footnotes:
[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 $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.
[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.
[Transaction #4]
Security: Common Stock
Date: 2026-10-09 | Code: S (Open market sale)
Shares: -18,656 | Price: $217.10
Total Value: $4,050,139.24
Shares Owned After: 4,774,691 | Ownership: I (Indirect) | Nature: By Trust for Child 2
Footnotes:
[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.
[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.
[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.
[Transaction #5]
Security: Common Stock
Date: 2026-10-08 | Code: S (Open market sale)
Shares: -19,990 | Price: $217.05
Total Value: $4,338,795.52
Shares Owned After: 15,525,748 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[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.
[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.
[F6] These shares are held by a family trust for which the reporting person is co-trustee.
[Transaction #6]
Security: Common Stock
Date: 2026-10-09 | Code: S (Open market sale)
Shares: -93,241 | Price: $217.10
Total Value: $20,242,229.49
Shares Owned After: 15,432,507 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[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.
[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.
[F6] These shares are held by a family trust for which the reporting person is co-trustee.
--- Holdings ---
[Holding #1]
Security: Common Stock
Ownership: D (Direct)
[Holding #2]
Security: Common Stock
Ownership: I (Indirect)
Footnotes:
[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.
[Holding #3]
Security: Common Stock
Ownership: I (Indirect)
Footnotes:
[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.
--- Footnotes (Complete Index) ---
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 $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.
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 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.
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.
F6: These shares are held by a family trust for which the reporting person is co-trustee.
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.
--- Signature ---
/s/ By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Jayshree Ullal (2026-10-13)
