STOCK TITAN

StoneX Group Inc. (SNEX) CRO sells 52,376 shares after major option exercise

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

StoneX Group Inc. insider Mark Lowry Maurer, Chief Risk Officer, exercised stock options to acquire 69,372 shares of common stock at $8.90 per share on July 22, 2026. He sold 52,376 common shares that day at an average price of $74.3218 per share in open-market transactions under a Rule 10b5-1 trading plan.

After the exercise, he continues to hold 714,366 stock options directly. The reported sale price reflects an average across multiple trades; a full breakdown of the shares sold at each separate price is available from the reporting person upon request.

Positive

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Negative

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Insider Maurer Mark Lowry
Role Insider
Sold 52,376 shs ($3.89M)
Approx. gross sale proceeds $3.89M
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 52,376 $74.3218 $3.89M
Holdings After Transaction: Stock Options — 714,366 shares (Direct); Common Stock — 220,240 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 converted into common stock on 2026-07-22 at $8.90 per share
Exercise price $8.9000 per share Conversion or exercise price of the stock options exercised on 2026-07-22
Shares sold 52,376 shares Common stock sold on 2026-07-22 in open-market transactions
Average sale price $74.3218 per share Average price for the reported sale of common stock, subject to footnote F1
Remaining stock options 714,366 options Stock options held directly after the reported option exercise
Stock Options financial
"Security title reported as 'Stock Options' for the derivative transaction"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
Common Stock financial
"Underlying security title and non-derivative security listed as 'Common Stock'"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Exercise or conversion of derivative security financial
"Transaction code description 'Exercise or conversion of derivative security'"
Sale in open market or private transaction financial
"Transaction code description 'Sale in open market or private transaction'"
average price financial
"Footnote F1 states 'The price reported represents an average price.'"

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

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FAQ

What transactions did StoneX Group Inc. (SNEX) insider Mark Lowry Maurer report?

Mark Lowry Maurer reported exercising 69,372 stock options at $8.90 per share into common stock, then selling 52,376 common shares at an average price of $74.3218 on July 22, 2026, in open-market transactions under a Rule 10b5-1 trading plan.

How many StoneX (SNEX) shares did the insider sell and at what price?

He sold 52,376 shares of StoneX common stock at an average price of $74.3218 per share. The price is an average across multiple trades, and detailed price and size information for each execution is available upon request from the reporting person.

What option exercise did StoneX (SNEX) insider Mark Lowry Maurer complete?

He exercised stock options covering 69,372 underlying shares of StoneX common stock at an exercise price of $8.90 per share. This derivative transaction converted the options into common shares, part of which were then sold in open-market transactions on the same date.

Does the StoneX (SNEX) filing indicate these trades were under a Rule 10b5-1 plan?

Yes. The filing’s Rule 10b5-1 checkbox is marked, indicating the reported transactions were executed under a pre-arranged trading plan. Such plans are intended to structure trades in advance, independent of later material nonpublic information the insider may receive.

How many StoneX (SNEX) stock options does the insider hold after the reported exercise?

Following the reported option exercise, Mark Lowry Maurer directly holds 714,366 stock options. This figure reflects the remaining derivative securities reported after exercising 69,372 options on July 22, 2026, and does not include any additional unreported derivative positions that may exist.

What does the average sale price disclosure mean in the StoneX (SNEX) Form 4?

The Form 4 states the $74.3218 sale price is an average price across multiple trades. The insider has undertaken to provide the SEC, the issuer, and any shareholder full details of the number of shares sold at each individual price upon request.
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)
07/22/2026
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 Stock07/22/2026M69,372A$8.9272,616D
Common Stock07/22/2026S52,376D$74.3218(1)220,240D
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$8.907/22/2026M69,37212/05/202112/05/2026Common Stock69,372$0714,366D
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. Maurer07/23/2026
** 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)