Sean O'Connor plans sale of 40,000 shares

SNEX insider Sean O'Connor has filed a notice to sell 40,000 shares of common stock.

Accepted by SEC EDGAR 02/10/2026 - 05:11 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

SNEX insider Sean O'Connor has filed a notice to sell 40,000 shares of common stock. The planned sale is through Merrill Lynch on the NASDAQ around February 10, 2026, with an aggregate market value of $4,949,320 based on the filing.

These 40,000 shares were acquired on February 10, 2026 via stock plan activity from the issuer. The filing also notes that O'Connor sold another 40,000 common shares on February 9, 2026, generating gross proceeds of $4,996,698 over the prior three months.

FAQ

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

What insider transaction does the SNEX Form 144 filing disclose?

The filing shows Sean O'Connor plans to sell 40,000 SNEX common shares. The planned sale is through Merrill Lynch on NASDAQ around February 10, 2026, with an aggregate market value of $4,949,320 based on the figures in the notice.

At what value is Sean O'Connor’s planned 40,000-share SNEX sale listed?

The 40,000 SNEX common shares are listed with an aggregate market value of $4,949,320. This value, disclosed in the Form 144, reflects the market pricing reference used for the planned NASDAQ sale through Merrill Lynch.

How were the 40,000 SNEX shares in the Form 144 acquired?

The 40,000 SNEX common shares were acquired on February 10, 2026 via stock plan activity from the issuer. The Form 144 notes “Stock Plan Activity” as the nature of the acquisition transaction with the issuer listed as the source.

What prior SNEX share sales by Sean O'Connor are reported?

The filing reports that Sean O'Connor sold 40,000 SNEX common shares on February 9, 2026. Those shares generated gross proceeds of $4,996,698 during the prior three months, as disclosed in the “Securities Sold During The Past 3 Months” section.

Which broker and exchange are involved in the planned SNEX share sale?

The Form 144 lists Merrill Lynch as the broker for the planned transaction. The 40,000 SNEX common shares are intended to be sold on the NASDAQ exchange, providing a clear venue and intermediary for the sale described in the notice.

What representation does the seller make in the SNEX Form 144 notice?

The seller represents that they do not know any material adverse, nonpublic information about the issuer’s current or prospective operations. This representation is made by signing the notice, consistent with the standard Rule 144 disclosure language.

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

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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	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	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	40000	4949320	52463316	02/10/2026	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	02/10/2026	Stock Plan Activity	Issuer			40000	02/10/2026	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
Sean O'Connor 230 Park Ave 10th Floor New York NY 10169	Common	02/09/2026	40000	4996698

144: Remarks and Signature

Remarks
Date of Notice	02/10/2026
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)