SNEX files Form 144 to sell 75,000 shares

SNEX filed a Form 144 notice listing 75,000 shares of Common Stock associated with a Merrill Lynch broker for potential sale.

Rhea-AI Filing Summary

SNEX filed a Form 144 notice listing 75,000 shares of Common Stock associated with a Merrill Lynch broker for potential sale. The filing also lists three recent reported dispositions by Sean O'Connor on 05/15/2026, 05/18/2026 and 05/19/2026.

Key Figures

Registered/offered shares: 75,000 shares Sale on 05/15/2026: 140,070 shares Sale on 05/18/2026: 87,790 shares +2 more

5 metrics

Registered/offered shares 75,000 shares Common Stock line associated with Merrill Lynch

Sale on 05/15/2026 140,070 shares Reported securities sold by Sean O'Connor

Sale on 05/18/2026 87,790 shares Reported securities sold by Sean O'Connor

Sale on 05/19/2026 72,140 shares Reported securities sold by Sean O'Connor

Security line date 06/12/2026 Date shown on Common Stock row next to NASDAQ

Key Terms

Form 144, Stock Plan Activity, Issuer

3 terms

Form 144 regulatory

"144: Securities To Be Sold"

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 | 12/15/2024 | Stock Plan Activity"

Issuer regulatory

"Stock Plan Activity | Issuer"

FAQ

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

What does SNEX's Form 144 list?

The filing lists 75,000 shares of Common Stock associated with Merrill Lynch as the broker. It also records recent reported dispositions by Sean O'Connor on 05/15/2026, 05/18/2026, and 05/19/2026.

How many shares did Sean O'Connor report selling in May 2026 on SNEX filings?

The excerpt shows three reported sales: 140,070 shares on 05/15/2026, 87,790 shares on 05/18/2026, and 72,140 shares on 05/19/2026. These figures appear in the securities sold section.

Which broker is named on the SNEX Form 144?

The filing names Merrill Lynch at an address on K Street, Washington, D.C., in connection with the listed 75,000 shares. The broker is shown immediately alongside the Common Stock line in the excerpt.

What date is associated with the SNEX securities line in the excerpt?

A date of 06/12/2026 appears on the securities line next to NASDAQ. That date is shown with the Common Stock row in the provided content and is printed alongside other numeric fields.

Does the excerpt show whether proceeds go to the issuer or selling holder for SNEX?

The provided excerpt lists the broker and share counts but does not specify proceeds treatment. The content shows selling activity and a broker name; it does not state whether proceeds are for the issuer or selling holders.

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

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Accepted by SEC EDGAR 06/12/2026 - 04:58 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	0001208362
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	Sean O'Connor
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	75000	9833824	79251496	06/12/2026	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	12/15/2024	Stock Plan Activity	Issuer			49798	12/15/2024	n/a
Common	12/15/2023	Stock Plan Activity	Issuer			4320	12/15/2023	n/a
Common	12/14/2021	Stock Plan Activity	Issuer			20882	12/14/2021	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
Sean O'Connor 230 Park Ave 10th Floor New York NY 10169	Common	05/19/2026	72140	7928673
Sean O'Connor 230 Park Ave 10th Floor New York NY 10169	Common	05/18/2026	87790	9782517
Sean O'Connor 230 Park Ave 10th Floor New York NY 10169	Common	05/15/2026	140070	15445927

144: Remarks and Signature

Remarks
Date of Notice	06/12/2026
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	Sean O'Connor
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)