Duda Kenneth 4

What Happened

• Kenneth Duda, President, CTO and a director of Arista Networks, exercised 17,333 shares at $15.28 per share on June 22, 2026 (cost ~$264,795). On the same day he sold a total of 43,333 shares in multiple open-market transactions, generating aggregate proceeds of approximately $7,428,234. The reported sale prices ranged roughly from the high $160s to mid $170s per share (see footnotes for detailed ranges).

• This combination was an option exercise (transaction code M) followed by multiple market sales (transaction code S). Sales of this kind are commonly executed under pre-established plans and are often routine; the exercise itself increases the insider’s shares acquired but the net effect here was a large sale of already-held and/or newly acquired shares.

Key Details

• Transaction date: June 22, 2026; Form 4 filed June 24, 2026 (filed within the normal two-business-day window).
• Option exercise: 17,333 shares at $15.28 (total cost ~$264,795).
• Open-market sales: 43,333 shares for total proceeds of ~$7,428,234; per-share sale prices ranged ~ $166.83–$175.04 (see footnotes F2–F9 for exact ranges and weighted averages).
• Shares owned after the transactions: not specified in the excerpt provided.
• Notable footnotes:
  • F1, F10, F12 — many transactions were effected pursuant to Rule 10b5-1 trading plans (personal plan, plans for the reporting person’s children, and a plan for the reporting person’s 501(c) foundation).
  • F11, F13–F15 — several holdings are in trusts or a 501(c) foundation for which the reporting person (and spouse) serve as co-trustee; beneficial ownership of some trusts is disclaimed.
• No late filing flag indicated in the provided data.

Context

• The filing shows an option exercise followed by substantial open-market sales. Because multiple sales were executed through pre-established Rule 10b5-1 plans (including plans for family members and a foundation), these transactions are documented as routine plan-based sales rather than ad-hoc trades. For derivative activity: “M” indicates exercise/conversion of a derivative (options) — Duda exercised options at $15.28 and shares were subsequently sold under the plans above.