StoneX Group (SNEX) risk chief sells 11,398 common shares

Rhea-AI Filing Summary

StoneX Group Inc. insider Mark Lowry Maurer, the company’s Chief Risk Officer, reported an open-market sale of Common Stock. He sold 11,398 shares on May 22, 2026 at an average price of $112.2455 per share. After this transaction, he directly holds 135,496 shares of StoneX Group Inc. common stock.

Insider Trade Summary

Net Seller: 11,398 shares ($1,279,374)

Net Sell 1 txn

Insider Maurer Mark Lowry

Role null

Sold 11,398 shs ($1.28M)

Type	Security	Shares	Price	Value
Sale	Common Stock	11,398	$112.2455	$1.28M

Holdings After Transaction: Common Stock — 135,496 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 11,398 shares Average sale price: $112.2455 per share Shares held after transaction: 135,496 shares

3 metrics

Shares sold 11,398 shares Open-market sale on May 22, 2026

Average sale price $112.2455 per share Reported average price for the May 22, 2026 sale

Shares held after transaction 135,496 shares Directly owned common stock following the sale

Key Terms

open-market sale, Common Stock, average price

3 terms

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title: "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.

average price financial

"The price reported represents an average price."

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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).

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)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Chief Risk Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/22/2026		S		11,398	D	$112.2455(1)	135,496	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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. Maurer	05/26/2026
	** Signature of Reporting Person	Date
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)

FAQ

What insider transaction did StoneX Group (SNEX) report for Mark Lowry Maurer?

StoneX Group reported that Chief Risk Officer Mark Lowry Maurer sold 11,398 shares of common stock in an open-market transaction. The sale was reported on Form 4 and involved directly held shares at an average price of $112.2455 per share.

How many StoneX Group (SNEX) shares did the Chief Risk Officer sell and at what price?

The Chief Risk Officer sold 11,398 StoneX Group common shares at an average price of $112.2455 per share. This price reflects an average across multiple trades, as noted in the filing’s footnote about the reported transaction pricing.

How many StoneX Group (SNEX) shares does Mark Lowry Maurer hold after the sale?

After the reported sale, Mark Lowry Maurer directly holds 135,496 shares of StoneX Group common stock. This post-transaction holding figure comes from the Form 4 and reflects his remaining direct ownership position following the open-market sale.

What type of transaction was reported in the StoneX Group (SNEX) Form 4?

The Form 4 reports an open-market sale of StoneX Group common stock. The transaction code is “S,” which the filing describes as a sale in an open market or private transaction, indicating a disposition rather than an acquisition of shares.

Does the StoneX Group (SNEX) filing explain the pricing of the insider share sale?

Yes. The filing states the reported $112.2455 per-share price is an average. It notes the reporting person will provide full details on the number of shares sold at each separate price to the Commission, the issuer, and any stockholder upon request.