Marex Group officer proposes $4.82M share sale

The proposed sale is connected to a plan dated October 22, 2025, intended to comply with Rule 10b5-1(c).

Rhea-AI Filing Summary

Marex Group Ltd (MRX) officer Paolo Roberto Tonucci gave notice of a proposed sale of 66,666 common shares, with an indicated aggregate market value of $4,819,285.14. The securities information lists October 12, 2026, as the approximate sale date; the notice is dated October 13, 2026.

The shares were acquired from the issuer in a private transaction on December 31, 2019. The listed sales are in connection with a selling plan dated October 22, 2025, intended to comply with Rule 10b5-1(c). Tonucci also reported sales of 16,668 shares on August 10, 2026, 16,666 shares on July 13, 2026, and 16,666 shares on September 14, 2026.

Key Figures

Common shares proposed for sale: 66,666 shares Aggregate market value: $4,819,285.14 Approximate sale date: October 12, 2026 +3 more

6 metrics

Common shares proposed for sale 66,666 shares Listed in the securities to be sold

Aggregate market value $4,819,285.14 For the common shares proposed for sale

Approximate sale date October 12, 2026 Date listed for the proposed sale

Prior common shares sold 16,668 shares August 10, 2026

Prior common shares sold 16,666 shares July 13, 2026

Prior common shares sold 16,666 shares September 14, 2026

Key Terms

Rule 10b5-1(c), Rule 144, private transaction

3 terms

Rule 10b5-1(c) regulatory

"intended to comply with Rule 10b5-1(c)"

Rule 10b5-1(c) is an SEC guideline that lets company insiders set up a written, pre-planned schedule to buy or sell their company stock when they are not in possession of material, nonpublic information. For investors, it matters because such plans can reduce the appearance of insider trading by separating decisions from inside knowledge—like putting your trades on autopilot—while also requiring scrutiny since pre-planned trades can still affect market confidence and share value.

Rule 144 regulatory

"sales required by paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

private transaction financial

"Acquired from issuer in private transaction"

A private transaction is the sale or transfer of securities, assets, or ownership stakes carried out directly between a small number of parties rather than on a public exchange. For investors it matters because these deals are less visible and often less liquid than public trades, so pricing can be harder to verify, the investment can be harder to sell quickly, and buyers or sellers may gain strategic advantages not available in open markets — like negotiated terms similar to a private garage sale versus a crowded marketplace.

FAQ

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

How many MRX shares did Paolo Roberto Tonucci plan to sell?

Paolo Roberto Tonucci, an officer of Marex Group Ltd, gave notice of a proposed sale of 66,666 common shares, with an indicated aggregate market value of $4,819,285.14. The listed approximate sale date is October 12, 2026.

What selling plan is connected to Paolo Roberto Tonucci's MRX sale?

The sale is reported in connection with a selling plan dated October 22, 2025, intended to comply with Rule 10b5-1(c).

What recent MRX share sales did Paolo Roberto Tonucci report?

Tonucci reported sales of 16,668 shares on August 10, 2026, 16,666 shares on July 13, 2026, and 16,666 shares on September 14, 2026.

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

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Available on EDGAR 10/13/2026 - 08:53 AM EDT Accepted by SEC EDGAR 10/13/2026 - 08:53 AM 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	0002057942
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	Marex Group Limited
SEC File Number	001-42020
Address of Issuer	Crawford House 50 Cedar Avenue Hamilton BERMUDA HM 11
Phone	1-441-295-6500
Name of Person for Whose Account the Securities are To Be Sold	Paolo Roberto Tonucci
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 Stock	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	66666	4819285.14	71930870	10/12/2026	NASD

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 Stock	12/31/2019	Acquired from issuer in private transaction	The Issuer			66666	12/31/2019	None

* 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
Paolo Tonucci Crawford House, 50 Cedar Avenue Hamilton D0 HM 11	Common stock	08/10/2026	16668	1015346.94
Paolo Tonucci Crawford House, 50 Cedar Avenue Hamilton D0 HM 11	Common stock	07/13/2026	16666	1073578.16
Paolo Tonucci Crawford House, 50 Cedar Avenue Hamilton D0 HM 11	Common stock	09/14/2026	16666	1181167.54

144: Remarks and Signature

Remarks	The sales of shares set forth herein are made in connection with a selling plan dated 22nd October 2025 that is intended to comply with Rule 10b5-1(c). Filing intended to be submitted on 10/12/2026. Unable to be submitted due to federal holiday.
Date of Notice	10/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/22/2025
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	Goldman Sachs & Co. LLC on behalf of Paolo Roberto Tonucci
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)