Maddison John Anthony 4

What Happened

• John Maddison, Chief Product Marketing Officer at F5, had 454 restricted stock units (RSUs) vest on 2026-05-01 (each converts to one share). Those 454 RSUs converted to 454 shares (reported as an exercise/conversion). To cover taxes, 230 of the newly issued shares were withheld at $323.20 per share (tax withholding value $74,336). Separately, Maddison sold 1,000 shares in an open-market transaction on 2026-05-04 at $322.33 per share, generating proceeds of $322,330. Overall activity: RSU vesting (acquisition), tax-withholding share surrender, and an open-market sale.

Key Details

• Transaction dates and prices:
  • 2026-05-01: 454 RSUs vested and converted to 454 shares (acquired at $0 per share).
  • 2026-05-01: 230 shares withheld to satisfy tax obligations at $323.20/share (value $74,336).
  • 2026-05-04: 1,000 shares sold open market at $322.33/share (proceeds $322,330).
• Transaction codes: M = option/derivative conversion (RSU vesting), F = tax withholding, S = sale.
• The 1,000-share sale was executed under a Rule 10b5-1 trading plan dated 11/06/2025 (per filing footnote).
• The RSUs come from a November 3, 2025 award that vests in twelve equal quarterly increments starting Feb 1, 2026 (this was one quarterly vest).
• Shares owned after the transactions are not specified in the excerpt provided.
• Filing: Form filed 2026-05-05 covering the 2026-05-01 transactions (filing appears timely).

Context

• This filing reflects routine equity compensation activity: RSU vesting and a planned open-market sale under a pre-established 10b5-1 plan. The tax-related share surrender (code F) is common when awards vest. These are sales and conversions rather than purchases; such transactions are typically administrative or liquidity events and do not by themselves indicate a change in insider sentiment.