StoneX director buys 2,500 company shares

StoneX Group Inc. director Thamodaran Dhamu R. reported purchasing 2,500 shares of common stock on August 10, 2026 at an average price of $64.4824 per share.

Accepted by SEC EDGAR 08/11/2026 - 04:28 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

StoneX Group Inc. director Thamodaran Dhamu R. reported purchasing 2,500 shares of common stock on August 10, 2026 at an average price of $64.4824 per share. The shares are held indirectly by a trust, bringing indirect holdings to 75,760 shares and separately reported direct holdings to 5,648 shares. The reported price represents a weighted average, with a detailed breakdown of individual trade prices available on request.

Insider Trade Summary

Net Buyer: 2,500 shares

Net Buy 1 txn

Insider Thamodaran Dhamu R.

Role Director

Bought 2,500 shs ($161K)

Increase in Position 3.4%

Type	Security	Shares	Price	Value
Purchase	Common Stock F1	2,500	$64.4824	$161K
Holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 75,760 shares (Indirect, By Trust); Common Stock — 5,648 shares (Direct)

Holdings Before and After: Common Stock, 73,260 to 75,760 shares (Indirect, By Trust)

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.

Key Figures

Shares purchased: 2,500 shares Average purchase price: $64.4824 per share Indirect holdings after transaction: 75,760 shares +2 more

5 metrics

Shares purchased 2,500 shares Common stock purchased on August 10, 2026 by director Thamodaran Dhamu R.

Average purchase price $64.4824 per share Weighted average price for the 2,500 shares acquired on August 10, 2026

Indirect holdings after transaction 75,760 shares Common stock held indirectly by trust following the August 10, 2026 purchase

Direct holdings after transaction 5,648 shares Common stock held directly by the reporting person as of the same date

Net shares bought 2,500 shares Net buy volume in the reporting period based on transaction summary

Key Terms

indirect, By Trust, weighted average price, open market or private transaction

4 terms

indirect financial

"total_shares_following_transaction" ... "direct_or_indirect": "I""

By Trust financial

""nature_of_ownership": "By Trust""

weighted average price financial

"The price reported represents an average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction_code_description": "Purchase in open market or private transaction""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did StoneX Group Inc. (SNEX) report for August 10, 2026?

StoneX Group Inc. reported that director Thamodaran Dhamu R. purchased 2,500 shares of common stock on August 10, 2026 at an average price of $64.4824 per share in an open-market or private transaction.

How many StoneX Group Inc. (SNEX) shares does Thamodaran Dhamu R. hold after this transaction?

After the reported transaction, Thamodaran Dhamu R. holds 75,760 shares indirectly through a trust and 5,648 shares directly of StoneX Group Inc. common stock, as disclosed in the ownership tables.

Was the StoneX (SNEX) insider trade on August 10, 2026 a purchase or sale?

The August 10, 2026 insider trade by director Thamodaran Dhamu R. was a purchase of 2,500 shares of StoneX Group Inc. common stock, coded as a purchase in an open-market or private transaction.

At what price did the StoneX (SNEX) director buy shares on August 10, 2026?

The director’s reported purchase price was an average of $64.4824 per share. The filing notes this is a weighted average price, with full details of the number of shares traded at each separate price available upon request.

How are the newly purchased StoneX (SNEX) shares held by Thamodaran Dhamu R.?

The 2,500 StoneX Group Inc. shares acquired on August 10, 2026 are held indirectly "By Trust". The filing distinguishes these indirect holdings from the director’s separately reported direct ownership of common shares.

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

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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^*

Thamodaran Dhamu R.

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/10/2026

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	08/10/2026		P		2,500	A	$64.4824(1)	75,760	I	By Trust
Common Stock								5,648	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:

	Dhamu R. Thamodaran	08/11/2026
	** 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)