STOCK TITAN

StoneX Group (SNEX) risk chief exercises 69,372 options and sells 52,648 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

StoneX Group Inc. executive Mark Lowry Maurer, Chief Risk Officer, reported an options exercise and related stock sale under a Rule 10b5-1 trading plan. He exercised 69,372 stock options at an exercise price of $8.90 per share, acquiring an equal number of common shares. On the same date, he sold 52,648 common shares at a weighted-average price of $66.2501 per share, with the exact price breakdown available on request. Following the derivative transaction, he reported 644,994 stock options remaining in his direct holdings.

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Insider Maurer Mark Lowry
Role Insider
Sold 52,648 shs ($3.49M)
Approx. gross sale proceeds $3.49M
Approx. exercise cost $617K
Type Security Shares Price Value
Exercise Stock Options 69,372 $0.00 $0.00
Exercise Common Stock 69,372 $8.90 $617K
Sale Common Stock F1 52,648 $66.2501 $3.49M
Holdings After Transaction: Stock Options — 644,994 shares (Direct); Common Stock — 236,964 shares (Direct)
Footnotes (1)
  1. F1. The price reported represents an average price. The Reporting Person will provide to the Commission, the issuer and any stockholder, upon request, full information regarding the number of shares sold at each separate price.
Options exercised 69,372 shares Stock options exercised into common stock on 2026-08-07
Exercise price $8.90 per share Conversion or exercise price of stock options exercised
Shares sold 52,648 shares Common stock sold on 2026-08-07
Weighted-average sale price $66.2501 per share Average price for common stock sale, detailed prices available on request
Options remaining 644,994 options Stock options held directly following the derivative transaction
Option expiration date 2026-12-05 Expiration date of the exercised stock options series
Rule 10b5-1 trading plan regulatory
"Transactions were made under a Rule 10b5-1 trading plan."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
derivative security financial
"Stock options are reported as a derivative security exercised into common stock."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
weighted-average price financial
"The price reported represents an average price with full breakdown available."
Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What did StoneX Group Inc. (SNEX) executive Mark Lowry Maurer report in this Form 4?

Mark Lowry Maurer reported exercising 69,372 stock options at $8.90 per share and selling 52,648 common shares at a weighted-average price of $66.2501 per share, all in direct ownership.

Were the SNEX transactions by Mark Lowry Maurer made under a Rule 10b5-1 trading plan?

Yes. The Form 4 indicates the transactions were made under a Rule 10b5-1 trading plan. Such pre-arranged plans allow insiders to schedule trades in advance, separate from day-to-day market conditions or subsequent company developments.

How many StoneX (SNEX) stock options did Mark Lowry Maurer exercise and at what price?

He exercised 69,372 stock options for StoneX Group Inc. common stock at an exercise price of $8.90 per share. These options were originally scheduled to expire on December 5, 2026, and the exercise generated an equal number of common shares.

How many StoneX (SNEX) shares did Mark Lowry Maurer sell and at what price?

He sold 52,648 common shares at a weighted-average price of $66.2501 per share. A footnote states this price is an average, and full details of the number of shares sold at each separate price level are available upon request.

What are Mark Lowry Maurer’s remaining StoneX (SNEX) option holdings after this transaction?

After the reported exercise, he held 644,994 stock options directly. This figure reflects his remaining derivative position of stock options as reported following the August 7, 2026 transaction date.

What is the overall trading direction of this SNEX Form 4 by Mark Lowry Maurer?

The filing shows a mixed activity pattern: an exercise of 69,372 options acquiring common shares, combined with a sale of 52,648 common shares, resulting in net share sales relative to market transactions.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Maurer Mark Lowry

(Last)(First)(Middle)
230 SOUTH LASALLE
SUITE 10-500

(Street)
CHICAGO ILLINOIS 60604

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
StoneX Group Inc. [ SNEX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
Officer (give title below)XOther (specify below)
Chief Risk Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/07/2026M69,372A$8.9289,612D
Common Stock08/07/2026S52,648D$66.2501(1)236,964D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Options$8.908/07/2026M69,37212/05/202112/05/2026Common Stock69,372$0644,994D
Explanation of Responses:
1. The price reported represents an average price. The Reporting Person will provide to the Commission, the issuer and any stockholder, upon request, full information regarding the number of shares sold at each separate price.
Remarks:
Mark L. Maurer08/10/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)