StoneX (SNEX) vice chair uses 44K shares to cover tax withholding

Rhea-AI Filing Summary

StoneX Group Inc. executive vice chairman Sean Michael O’Connor reported a tax-withholding share disposition, not an open-market sale. On this Form 4, 44,269 shares of Common Stock were withheld at $77.95 per share to cover tax obligations. After this transaction, he holds 1,236,921 shares directly, plus indirect holdings of 424,353 shares through a trust and 2,543,964 shares through Darseaker Limited.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider OCONNOR SEAN MICHAEL

Role Executive Vice-Chairman-Board

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	44,269	$77.95	$3.45M
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,236,921 shares (Direct); Common Stock — 424,353 shares (Indirect, By Trust)

Footnotes (1)

Key Figures

Tax-withholding shares: 44,269 shares Tax-withholding price: $77.95 per share Direct holdings after transaction: 1,236,921 shares +2 more

5 metrics

Tax-withholding shares 44,269 shares Common Stock withheld on tax-withholding disposition

Tax-withholding price $77.95 per share Value used for withheld Common Stock shares

Direct holdings after transaction 1,236,921 shares Common Stock directly owned following Form 4 event

Indirect trust holdings 424,353 shares Common Stock held indirectly "By Trust"

Indirect Darseaker Limited holdings 2,543,964 shares Common Stock held indirectly via Darseaker Limited

Key Terms

tax-withholding disposition, Common Stock, indirect ownership, By Trust, +1 more

5 terms

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Common Stock financial

"security_title: "Common Stock" for the reported entries"

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.

indirect ownership financial

"ownership_type: "indirect" with ownership_code "I""

By Trust financial

"nature_of_ownership: "By Trust" for one indirect holding"

Form 4 regulatory

"INSIDER FILING DATA (Form 4) heading in the dataset"

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.

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^*

OCONNOR SEAN MICHAEL

(Last) (First) (Middle)

230 PARK AVENUE

10TH FLOOR

(Street)

NEW YORK NEW YORK 10169

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Vice-Chairman-Board

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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	03/31/2026		F		44,269	D	$77.95	1,236,921	D
Common Stock								424,353	I	By Trust
Common Stock								2,543,964	I	Darseaker Limited

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:

Remarks:

	Sean M. O'Connor	04/01/2026
	** 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 SNEX executive Sean Michael O’Connor report?

Sean Michael O’Connor reported a tax-withholding disposition of 44,269 StoneX Group Common Stock shares. These shares were withheld by the issuer at $77.95 per share to satisfy tax obligations, rather than sold in the open market.

Did Sean Michael O’Connor sell StoneX Group (SNEX) shares in the market?

The filing shows a tax-withholding disposition, not an open-market sale. 44,269 shares were withheld at $77.95 per share to cover tax liabilities related to equity compensation, a routine administrative mechanism rather than a discretionary market trade.

How many StoneX Group (SNEX) shares does O’Connor hold after this Form 4?

After the tax-withholding transaction, O’Connor directly holds 1,236,921 StoneX Group Common Stock shares. He also has indirect holdings of 424,353 shares through a trust and 2,543,964 shares through Darseaker Limited, according to the filing data.

What price was used for the SNEX tax-withholding shares on this Form 4?

The tax-withholding disposition used a price of $77.95 per StoneX Group Common Stock share. This price is applied for reporting the 44,269 withheld shares, reflecting the value used to satisfy the associated tax obligation on the equity award.

What do the indirect StoneX Group (SNEX) holdings on the Form 4 represent?

The Form 4 lists indirect ownership of StoneX Group shares held “By Trust” and by Darseaker Limited. These entries show 424,353 and 2,543,964 shares respectively, indicating additional positions associated with O’Connor beyond his directly held 1,236,921 shares.