Wassenaar Yvonne 4

What Happened Yvonne Wassenaar, a director of Arista Networks, converted/vested 971 restricted stock units (RSUs) into 971 shares (no cash paid) on May 20, 2026 and sold all 971 shares in the open market the same day for a total of roughly $136,846. The sales were executed in multiple blocks at weighted average prices ranging roughly from $139.36 to $143.20. The sales were reported on a Form 4 filed May 22, 2026.

Key Details

• Transaction date: May 20, 2026 (reported May 22, 2026 — timely filing within the 2-business‑day rule).
• Activity: RSU conversion/exercise (Code M) of 971 shares at $0.00, followed by open-market sales (Code S) of 324, 329, 242 and 76 shares.
• Prices/values: weighted average sale prices for the separate sale blocks were reported as $139.89 ($45,325), $140.86 ($46,344), $141.89 ($34,338), and $142.62 ($10,839); total proceeds ≈ $136,846.
• Shares owned after transaction: not specified in the excerpt of the filing provided.
• Footnotes: sales were made pursuant to a Rule 10b5-1 trading plan adopted Nov 21, 2025 (F2). RSUs represent contingent rights to shares upon vesting (F1), and the RSUs were originally granted May 30, 2025 with quarterly vesting schedule (F7). Price ranges for each sale block are detailed in footnotes F3–F6.

Context

• This was not a cash exercise of stock options; the filing shows RSUs converting to shares (no purchase price) and those shares being sold the same day. That pattern is common when vested RSUs are sold to cover tax or for portfolio rebalancing.
• The sales were carried out under a pre-established 10b5-1 plan, which typically schedules trades in advance and can indicate routine disposition rather than ad-hoc trading.