Arista Networks Director Mark Templeton's Restricted Stock Unit Vesting and Stock Acquisition

This Form 4 filing reports that Mark Templeton, a director of Arista Networks, Inc., received 971 shares of common stock on May 20, 2026 through the vesting of restricted stock units (RSUs). The RSUs were originally granted on May 30, 2025 and vest quarterly, with this transaction representing a quarterly vesting event. Templeton acquired the shares at $0.00 per share as part of the RSU vesting. Following this transaction, Templeton directly owns 57,872 shares of Arista Networks common stock. Additionally, the filing discloses that Templeton's spouse holds 75,200 shares indirectly through a trust. The RSUs were part of a compensation arrangement where 1/4 of the shares vest on August 20, 2025 and continue to vest quarterly thereafter on the first market trading day on or after February 20, May 20, August 20, or November 20.