Form 4: StoneX Group Insider Sells Shares
Insider Transaction (Form 4)
Mark Lowry Maurer, Chief Risk Officer of StoneX Group Inc., sold 103,092 shares of common stock on September 14, 2026.
Summary
- Option exercise/conversion: acquired 69,372 Common Stock at $8.90 ($617,411) on September 14, 2026; holds 306,336 after (Direct).
- Open-market sale: disposed of 52,564 Common Stock at $68.83 ($3,617,864) on September 14, 2026; holds 253,772 after (Direct).
- Open-market sale: disposed of 50,528 Common Stock at $67.02 ($3,386,629) on September 15, 2026; holds 203,244 after (Direct).
- Option exercise/conversion: disposed of 69,372 Stock Options on September 14, 2026; holds 575,622 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $7,004,494 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Mark Lowry Maurer — Other (Chief Risk Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-14 | Option exercise/conversion | Common Stock | 69,372 | $9 | $617.4K | 306,336 |
| 2026-09-14 | Open-market sale | Common Stock | 52,564 | $69 | $3.6M | 253,772 |
| 2026-09-15 | Open-market sale | Common Stock | 50,528 | $67 | $3.4M | 203,244 |
| 2026-09-14 | Option exercise/conversion | Stock Options | 69,372 | — | — | 575,622 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-14 | Option exercise/conversion (69,372 shares) |
| 2026-09-14 | Open-market sale (52,564 shares) |
| 2026-09-15 | Open-market sale (50,528 shares) |
| 2026-09-14 | Option exercise/conversion (69,372 shares) |
Keywords
insider transaction, Form 4, SNEX, StoneX Group Inc., bearish, Mark Lowry Maurer
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