StoneX CFO William Dunaway Exercises Options, Sells Shares

What Happened

• William J. Dunaway, Chief Financial Officer of StoneX Group Inc. (SNEX), exercised 126,562 derivative shares (options) at an $8.90 exercise price (cost reported as $1,126,402) and the same day sold 96,490 shares in an open-market transaction at an average price of $66.35, producing gross proceeds of about $6,401,803. The filing also reports the derivative instrument as disposed at $0.00, reflecting conversion/exercise of the options.

Key Details

• Transaction date: 2026-08-14; Form 4 filed: 2026-08-17 (filed within the normal reporting window).
• Exercise: 126,562 shares @ $8.90 = $1,126,402 (code M — exercise/conversion of derivative).
• Sale: 96,490 shares @ $66.35 (average price reported) = $6,401,803 (code S — open market sale). Footnote F1 notes the sale price shown is an average; details by price available on request.
• Derivative disposition: 126,562 @ $0.00 (reported as disposed in connection with exercise).
• Shares owned after the transactions: not specified in the provided filing excerpt.

Context

• The sequence (exercise of options and same-day sale of a portion of the resulting shares) is commonly used to cover the exercise cost and related tax withholding (often referred to as a cashless exercise), but the filing does not state the insider’s motive.
• Codes: M = exercise/conversion of a derivative/security; S = sale in the open market. This report is factual disclosure of insider activity, not an endorsement or prediction of company performance.