=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-03
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: Arista Networks, Inc. (ANET)
CIK: 0001596532
--- Reporting Owner ---
Name: Giancarlo Charles H
CIK: 0001299634
Role: Director
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -322 | Price: $174.49
Total Value: $56,187.36
Shares Owned After: 192,011 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F2] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.0141 to $175.0015, 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 co-trustee.
[Transaction #2]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -817 | Price: $175.46
Total Value: $143,354.74
Shares Owned After: 191,194 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F4] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.0785 to $176.0589, 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 co-trustee.
[Transaction #3]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -403 | Price: $176.51
Total Value: $71,134.94
Shares Owned After: 190,791 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F5] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.11 to $176.7783, 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 co-trustee.
[Transaction #4]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -382 | Price: $177.39
Total Value: $67,763.78
Shares Owned After: 190,409 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F6] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.142 to $178.13, 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 co-trustee.
[Transaction #5]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -417 | Price: $178.82
Total Value: $74,567.06
Shares Owned After: 189,992 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F7] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.1689 to $179.1092, 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 co-trustee.
[Transaction #6]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -536 | Price: $179.85
Total Value: $96,397.67
Shares Owned After: 189,456 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F8] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.17 to $180.1592, 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 co-trustee.
[Transaction #7]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -1,119 | Price: $180.74
Total Value: $202,248.40
Shares Owned After: 188,337 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F9] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.24 to $181.23, 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 co-trustee.
[Transaction #8]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -825 | Price: $181.81
Total Value: $149,996.30
Shares Owned After: 187,512 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F10] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.25 to $182.24, 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] These shares are held by a family trust for which the reporting person is co-trustee.
[Transaction #9]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -558 | Price: $182.80
Total Value: $102,002.79
Shares Owned After: 186,954 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F11] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.25 to $183.23, 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 co-trustee.
[Transaction #10]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -478 | Price: $183.87
Total Value: $87,890.91
Shares Owned After: 186,476 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F12] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.25 to $184.24, 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] These shares are held by a family trust for which the reporting person is co-trustee.
[Transaction #11]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -1,303 | Price: $184.68
Total Value: $240,643.12
Shares Owned After: 185,173 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F13] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.25 to $185.2409, 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 co-trustee.
[Transaction #12]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -738 | Price: $185.62
Total Value: $136,985.20
Shares Owned After: 184,435 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F14] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.25 to $186.23, 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 co-trustee.
[Transaction #13]
Security: Common Stock
Date: 2026-08-03 | Code: S (Open market sale)
Shares: -102 | Price: $186.35
Total Value: $19,007.39
Shares Owned After: 184,333 | Ownership: I (Indirect) | Nature: by Trust
Footnotes:
[F1] This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
[F15] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.252 to $186.52, 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 co-trustee.
--- Holdings ---
[Holding #1]
Security: Common Stock
Ownership: D (Direct)
--- Footnotes (Complete Index) ---
F1: This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.
F10: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.25 to $182.24, 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.
F11: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.25 to $183.23, 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 $183.25 to $184.24, 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.
F13: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.25 to $185.2409, 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.
F14: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.25 to $186.23, 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.
F15: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.252 to $186.52, 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.
F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.0141 to $175.0015, 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 co-trustee.
F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.0785 to $176.0589, 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 $176.11 to $176.7783, 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 $177.142 to $178.13, 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 $178.1689 to $179.1092, 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 $179.17 to $180.1592, 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 $180.24 to $181.23, 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.
--- Signature ---
/s/ By: Isabelle Bertin-Bailly, Attorney-in- For: Charles Giancarlo (2026-08-05)
