SNEX officer sells 34,862 shares reported on Form 144

SNEX reported an insider sale reported on Form 144.

Rhea-AI Filing Summary

SNEX reported an insider sale reported on Form 144. The filing shows 05/14/2026 trades of 34,862 shares of Common stock by Mark Maurer. The filing lists a company-wide share count of 79,251,496 shares as of 05/22/2026.

Insights

Insider Transactions Analyst

Routine Form 144 sale by an officer; size appears modest relative to total shares outstanding.

The filing lists a 05/14/2026 disposition of 34,862 shares by Mark Maurer. The record also shows 4,053,118 in the adjacent column and a company-wide count of 79,251,496 shares as of 05/22/2026, which provide context for scale.

Timing and cash‑flow treatment are not detailed in the excerpt. Subsequent filings or the Form 4 may provide transaction type (open‑market, plan sale, or withholding) and resulting holdings.

Key Figures

Shares sold: 34,862 shares Shares outstanding: 79,251,496 shares Holder column figure: 4,053,118

3 metrics

Shares sold 34,862 shares Disposition dated 05/14/2026 by Mark Maurer

Shares outstanding 79,251,496 shares Listed with date 05/22/2026 on the securities line

Holder column figure 4,053,118 Adjacent column entry following the sold shares row (appears in the same table row)

Key Terms

Form 144, Stock plan activity, Issuer

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock plan activity financial

"Common | 05/14/2026 | Stock plan activity"

Issuer regulatory

"Stock plan activity | Issuer"

FAQ

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

What did SNEX's Form 144 disclose on 05/14/2026?

The Form 144 shows a reported disposition of 34,862 shares of Common stock by Mark Maurer on 05/14/2026. The entry appears under stock plan activity with issuer as the transaction party.

Who is the reporting party on the SNEX Form 144?

The filing names Mark Maurer with an address at 230 Park Ave, 10th Floor, New York, NY 10169. The line lists the officer as the person associated with the reported sale on 05/14/2026.

How large is the company share count in the filing?

The excerpt lists 79,251,496 shares with an associated date of 05/22/2026. This figure appears on the securities line and supplies a company-level share count in the provided excerpt.

Does the Form 144 specify whether proceeds go to the issuer or selling holder?

The excerpt lists the transaction as stock plan activity and labels the counterparty as Issuer. The precise cash‑flow treatment and use of proceeds are not detailed in the provided text.

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

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Accepted by SEC EDGAR 05/22/2026 - 04:48 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001662210
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	StoneX Group Inc.
SEC File Number
Address of Issuer	230 Park Ave, 10th Floor New York NEW YORK 10169
Phone	2124853500
Name of Person for Whose Account the Securities are To Be Sold	Mark Maurer
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill Lynch 1800 K St NW Suite 800 Washington DC 20006	11398	1279005	79251496	05/22/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/14/2026	Stock plan activity	Issuer			11398	05/14/2026	n/a

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Mark Maurer 230 Park Ave, 10th Floor New York NY 10169	Common	05/14/2026	34862	4053118

144: Remarks and Signature

Remarks
Date of Notice	05/22/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Mark Maurer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)