StoneX (SNEX) executive vice-chairman sells 150K shares, keeps over 1M

Rhea-AI Filing Summary

StoneX Group Inc. Executive Vice-Chairman Sean Michael O'Connor reported open-market sales of company common stock. He sold 75,000 shares on June 12 at an average price of $131.1504 per share and a further 75,000 shares on June 15 at an average price of $135.4236 per share, for total reported sales of 150,000 shares.

After these transactions, O'Connor directly holds 1,086,921 shares of StoneX common stock. The filing also lists indirect holdings of 2,543,964 shares through Darseaker Limited and 424,353 shares held by a trust as of June 12. A footnote explains that the reported prices are averages, with detailed trade prices available on request.

Insights

Equity analyst

O'Connor sold 150,000 StoneX shares but retains large direct and indirect stakes.

Executive Vice-Chairman Sean Michael O'Connor executed two open-market sales totaling 150,000 StoneX common shares at average prices of $131.1504 and $135.4236. These are discretionary sales, not option exercises or tax withholdings, so they represent active dispositions into the market.

Following the sales, he still directly owns 1,086,921 shares and has additional indirect positions of 2,543,964 shares via Darseaker Limited and 424,353 shares held by a trust. In total, this filing shows he continues to have substantial exposure to StoneX equity despite the sales.

A footnote clarifies that each price is an average over multiple trades, with exact price breakdowns available on request. There is no reference here to a Rule 10b5-1 trading plan, so the timing context is not defined, but the remaining holdings suggest these transactions are a partial trim rather than an exit.

Insider Trade Summary

Net Seller: 150,000 shares ($19,993,050)

Net Sell 4 txns

Insider OCONNOR SEAN MICHAEL

Role Executive Vice-Chairman-Board

Sold 150,000 shs ($19.99M)

Type	Security	Shares	Price	Value
Sale	Common Stock	75,000	$135.4236	$10.16M
Sale	Common Stock	75,000	$131.1504	$9.84M
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,086,921 shares (Direct, null); Common Stock — 424,353 shares (Indirect, By Trust)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold June 12, 2026: 75,000 shares Shares sold June 15, 2026: 75,000 shares Total shares sold: 150,000 shares +5 more

8 metrics

Shares sold June 12, 2026 75,000 shares Open-market sale at $131.1504 per share

Shares sold June 15, 2026 75,000 shares Open-market sale at $135.4236 per share

Total shares sold 150,000 shares Aggregate of two open-market sales

Direct holdings after transactions 1,086,921 shares Common stock directly owned after June 15, 2026 sale

Indirect holdings via Darseaker Limited 2,543,964 shares Common stock indirectly owned as of June 12, 2026

Indirect holdings by trust 424,353 shares Common stock indirectly owned by trust as of June 12, 2026

Average sale price June 12 $131.1504/share Average price across multiple trades

Average sale price June 15 $135.4236/share Average price across multiple trades

Key Terms

open-market sale, indirect, average price, Common Stock

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.

indirect financial

""ownership_type": "indirect""

average price financial

"The price reported represents an average price."

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.

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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^*

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)
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		75,000	D	$131.1504(1)	1,161,921	D
Common Stock	06/15/2026		S		75,000	D	$135.4236(1)	1,086,921	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:

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:

	Sean M. O'Connor	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 Sean Michael O'Connor report at StoneX Group (SNEX)?

Sean Michael O'Connor reported selling StoneX common stock in two open-market transactions totaling 150,000 shares. The sales occurred on June 12 and June 15, 2026, and are disclosed in a Form 4 insider filing with detailed share counts and prices.

How many StoneX (SNEX) shares did O'Connor sell and at what prices?

He sold 75,000 StoneX common shares on June 12, 2026 at an average price of $131.1504, and another 75,000 shares on June 15, 2026 at an average price of $135.4236. Together, the transactions represent 150,000 shares sold in the open market.

How many StoneX (SNEX) shares does O'Connor hold after the reported sales?

After these transactions, O'Connor directly owns 1,086,921 StoneX common shares. The Form 4 also reports separate indirect holdings of 2,543,964 shares through Darseaker Limited and 424,353 shares held by a trust, highlighting that he still maintains significant overall exposure.

What indirect StoneX (SNEX) holdings are reported for O'Connor?

The filing shows indirect ownership of 2,543,964 StoneX common shares through Darseaker Limited and 424,353 shares held by a trust, both as of June 12, 2026. These positions are reported separately from his direct holdings, indicating multiple entities hold shares associated with him.

Does the StoneX (SNEX) Form 4 explain the share prices for O'Connor’s sales?

Yes. A footnote states that the reported sale prices represent average prices across multiple trades. It further notes that O'Connor will provide the exact number of shares sold at each separate price to the SEC, the issuer, or any shareholder upon request.

Is O'Connor’s StoneX (SNEX) transaction a sale or an option exercise?

The transactions are reported as open-market sales of common stock, coded as "S" on the Form 4. There is no derivative exercise price or option information disclosed in this filing, indicating these are straightforward stock sales rather than option exercises or conversions.