Arista Networks (ANET)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-28 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Arista Networks, Inc. (ANET) CIK: 0001596532 --- Reporting Owner --- Name: Duda Kenneth CIK: 0001605808 Role: Director, Officer (President and CTO) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: +85,875 | Price: $0.00 Shares Owned After: 1,101,043 | Ownership: I (Indirect) | Nature: By Childrens' Trust Footnotes: [F1] Represents 85,875 shares from the Ken Duda Annuity Trust to the Children's Trust. [F2] 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. [Transaction #2] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: +85,875 | Price: $0.00 Shares Owned After: 1,186,918 | Ownership: I (Indirect) | Nature: By Childrens' Trust Footnotes: [F3] Represents 85,875 shares from the Jennifer Duda Annuity Trust to the Children's Trust. [F2] 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. [Transaction #3] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -51,160 | Price: $0.00 Shares Owned After: 706,595 | Ownership: I (Indirect) | Nature: By GRAT JD Footnotes: [F4] Represents 51,160 shares from the Jennifer Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. [F5] Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. [Transaction #4] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -42,937 | Price: $0.00 Shares Owned After: 663,658 | Ownership: I (Indirect) | Nature: By GRAT JD Footnotes: [F6] Represents 42,937 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. [F5] Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. [Transaction #5] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -42,938 | Price: $0.00 Shares Owned After: 620,720 | Ownership: I (Indirect) | Nature: By GRAT JD Footnotes: [F7] Represents 42,938 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. [F5] Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. [Transaction #6] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -51,160 | Price: $0.00 Shares Owned After: 705,112 | Ownership: I (Indirect) | Nature: By GRAT KD Footnotes: [F8] Represents 51,160 shares from the Kenneth Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. [F9] Reporting person is the trustee of the Kenneth Duda Annuity Trusts. [Transaction #7] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -42,938 | Price: $0.00 Shares Owned After: 662,174 | Ownership: I (Indirect) | Nature: By GRAT KD Footnotes: [F10] Represents 42,938 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. [F9] Reporting person is the trustee of the Kenneth Duda Annuity Trusts. [Transaction #8] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: -42,937 | Price: $0.00 Shares Owned After: 619,237 | Ownership: I (Indirect) | Nature: By GRAT KD Footnotes: [F11] Represents 42,937 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. [F9] Reporting person is the trustee of the Kenneth Duda Annuity Trusts. [Transaction #9] Security: Common Stock Date: 2026-08-28 | Code: J (Other acquisition/disposition) Shares: +102,320 | Price: $0.00 Shares Owned After: 224,695 | Ownership: I (Indirect) | Nature: by Trust Footnotes: [F12] 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] 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: [F14] These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee. --- Footnotes (Complete Index) --- F1: Represents 85,875 shares from the Ken Duda Annuity Trust to the Children's Trust. F10: Represents 42,938 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. F11: Represents 42,937 shares from the Kenneth Duda Annuity Trust to the Childrens Trust. F12: 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: These shares are held by a family trust for which the reporting person is co-trustee. F14: These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee. F2: 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. F3: Represents 85,875 shares from the Jennifer Duda Annuity Trust to the Children's Trust. F4: Represents 51,160 shares from the Jennifer Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F5: Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. F6: Represents 42,937 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. F7: Represents 42,938 shares from the Jennifer Duda Annuity Trust to the Childrens Trust. F8: Represents 51,160 shares from the Kenneth Duda Annuity Trust to the Kenneth and Jennifer Duda Living Trust. F9: Reporting person is the trustee of the Kenneth Duda Annuity Trusts. --- Signature --- /s/ By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda (2026-09-01)