SNEX insider sells shares reported on Form 144

Mark Maurer reported proposed sales of Common Stock on a Form 144.

Rhea-AI Filing Summary

Mark Maurer reported proposed sales of Common Stock on a Form 144. The filing lists sales including 34,706 shares on 06/15/2026, 11,398 shares on 05/22/2026 and 34,862 shares on 05/14/2026. The entries are recorded as stock plan activity and appear under the issuer's securities section for common stock.

Insights

Corporate Governance Analyst

Insider disclosed multiple planned dispositions over May–June 2026.

The filing shows Form 144 notices attributed to Mark Maurer listing three specific proposed sales of common stock: 05/14/2026, 05/22/2026, and 06/15/2026

These filings are administrative disclosures of intended sales under a stock plan. Cash‑flow treatment and whether transactions were executed are not stated in the excerpt; subsequent SEC reports would show completed trades.

Key Figures

Proposed sale: 34,706 shares Proposed sale: 11,398 shares Proposed sale: 34,862 shares

3 metrics

Proposed sale 34,706 shares Proposed sale dated <date>06/15/2026</date>

Proposed sale 11,398 shares Proposed sale dated <date>05/22/2026</date>

Proposed sale 34,862 shares Proposed sale dated <date>05/14/2026</date>

Key Terms

Form 144, Stock Plan Activity, Securities To Be Sold

3 terms

Form 144 regulatory

"reported sales on Form 144 including specific share counts"

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

"the excerpt labels the entries as Stock Plan Activity"

Securities To Be Sold regulatory

"section header lists Common stock and dates for proposed sales"

FAQ

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

What did SNEX insider Mark Maurer disclose on Form 144?

Mark Maurer disclosed proposed sales of Common Stock on Form 144. The filing lists 34,706 shares on 06/15/2026, 11,398 shares on 05/22/2026, and 34,862 shares on 05/14/2026.

Does a Form 144 mean the shares were sold for SNEX?

A Form 144 indicates intent to sell restricted or control securities under certain exemptions. It does not by itself confirm sale execution; subsequent filings would show completed transactions.

Were the reported SNEX transactions related to a stock plan?

The excerpt labels the activity as Stock Plan Activity, indicating the sales were reported in the context of plan‑issued or plan‑related securities on the listed dates.

Where can I find confirmation of whether the SNEX sales occurred?

Confirmation appears in later SEC filings such as Form 4 or broker reports. The provided excerpt does not state execution or cash‑flow details for the listed dates.

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

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Accepted by SEC EDGAR 06/16/2026 - 04:24 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	001-36045
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	11542	1541954	79251496	06/16/2026	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	06/15/2026	Stock Plan Activity	Issuer			11542	06/15/2026	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	06/15/2026	34706	4694738
Mark Maurer 230 Park Ave 10th Floor New York NY 10169	Common	05/22/2026	11398	1279005
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	06/16/2026
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)