Arista (ANET) Director Yvonne Wassenaar Receives 538 Shares

What Happened
Yvonne Wassenaar, a director of Arista Networks, had 538 restricted stock units convert/vest into 538 shares on August 20, 2026 (transaction code M). The filing shows 538 shares acquired at $0.00 and the corresponding derivative (the RSUs) disposed at $0.00—i.e., the RSUs were settled into common stock. There was no purchase or sale of stock for cash in this transaction.

Key Details

• Transaction date: 2026-08-20; Filing date: 2026-08-24 (filed 4 days after the transaction). Insiders normally must file Form 4 within 2 business days, so this appears later than the usual deadline.
• Shares acquired: 538 at $0.00; Derivative disposed: 538 at $0.00 (settlement of RSUs). No cash exchanged.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Footnotes: F1 clarifies each RSU equals a contingent right to one share upon vesting. F2 states these RSUs were granted May 29, 2026; one-quarter vested on Aug 20, 2026 and the remainder vests quarterly on or after Feb 20, May 20, Aug 20, and Nov 20.

Context
This was a routine vesting/settlement of restricted stock units rather than an open-market purchase or sale, so it doesn't directly signal a bullish or bearish trade by the director. The RSU grant schedule explains the timing: 1/4 vested on Aug 20, 2026 with subsequent quarterly vest dates.