StoneX Group (SNEX) president trims stake with 9,000-share sale

Rhea-AI Filing Summary

StoneX Group Inc. President Lyon Charles M reported an open-market sale of 9,000 shares of Common Stock on June 12, 2026 at an average price of $131.96 per share. After this transaction, he directly holds 216,495 shares of StoneX Group Inc. common stock.

The reported price is an average across multiple trades, and the insider has indicated a willingness to provide full detail on the number of shares sold at each separate price upon request.

Insider Trade Summary

Net Seller: 9,000 shares ($1,187,640)

Net Sell 1 txn

Insider Lyon Charles M

Role President

Sold 9,000 shs ($1.19M)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,000	$131.96	$1.19M

Holdings After Transaction: Common Stock — 216,495 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 9,000 shares Average sale price: $131.96 per share Shares held after transaction: 216,495 shares +1 more

4 metrics

Shares sold 9,000 shares Open-market sale of Common Stock on June 12, 2026

Average sale price $131.96 per share Average price across multiple trades for the June 12, 2026 sale

Shares held after transaction 216,495 shares Direct ownership of StoneX Group Common Stock following the sale

Transaction code S Sale in open market or private transaction

Key Terms

open-market sale, Common Stock, average price, Form 4

4 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 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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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^*

Lyon Charles M

(Last) (First) (Middle)

329 PARK AVENUE NORTH

SUITE 350

(Street)

WINTER PARK FLORIDA 32789

(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
X	Officer (give title below)		Other (specify below)
	President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026

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	06/12/2026		S		9,000	D	$131.96(1)	216,495	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:

	Charles M. Lyon	06/15/2026
	** 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 Lyon Charles M?

StoneX Group reported that President Lyon Charles M sold 9,000 shares of Common Stock in an open-market transaction. The sale was disclosed on Form 4 and reflects a routine insider disposition rather than a grant or option exercise.

At what price did Lyon Charles M sell StoneX Group (SNEX) shares?

The reported sale by Lyon Charles M used an average price of $131.96 per share. A footnote explains this represents an average of multiple trades, and he will provide detailed breakdowns of shares sold at each separate price upon request.

How many StoneX Group (SNEX) shares does Lyon Charles M hold after the sale?

Following the reported transaction, Lyon Charles M directly owns 216,495 shares of StoneX Group Common Stock. This post-transaction holding shows that he retains a substantial equity position in the company after the 9,000-share open-market sale.

Was the StoneX Group (SNEX) insider transaction a purchase or a sale?

The Form 4 shows a sale transaction. Lyon Charles M executed an open-market sale of 9,000 shares of StoneX Group Common Stock, coded as “S,” which denotes a sale in an open market or private transaction under SEC reporting rules.

Does the StoneX (SNEX) Form 4 mention multiple trade prices for the sale?

Yes. A footnote states that the reported $131.96 price is an average of several trades. It further notes Lyon Charles M will provide the Commission, the issuer and any stockholder full details of shares sold at each separate price upon request.