Arista Networks (ANET)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-20 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Arista Networks, Inc. (ANET) CIK: 0001596532 --- Reporting Owner --- Name: CHEW LEWIS CIK: 0001224994 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-20 | Code: M (Exercise of derivative) Shares: +538 | Price: $0.00 Shares Owned After: 31,770 | Ownership: D (Direct) Footnotes: [F1] Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Unit-6 Date: 2026-08-20 | Code: M (Exercise of derivative) Shares: -538 | Price: $0.00 Exercise Price: $0.00 Shares Owned After: 1,615 | Ownership: D (Direct) Footnotes: [F1] Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. [F2] The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20. [F2] The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20. --- Footnotes (Complete Index) --- F1: Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. F2: The reporting person was granted RSUs on May 29, 2026. 1/4th of the shares vest on August 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20. --- Signature --- /s/ By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Lewis Chew (2026-08-24)