Planned sale of 37,142 MRX Nasdaq shares

MRX filed a notice of proposed sales of restricted or control securities.

Rhea-AI Filing Summary

MRX filed a notice of proposed sales of restricted or control securities. The filing lists a planned sale of 37,142 shares of common stock through J.P. Morgan Securities LLC, with the stock listed on Nasdaq. It also reports that 37,143 shares of common stock were sold during the past three months. The reporting person is identified as Ian Lowitt, based in London.

Filing Explained

The July 13 notice covers a proposed 37,142-share filer sale, but does not show completion, price, or resulting ownership.

The July 13, 2026 Form 144 discloses a proposed resale of 37,142 common shares by Ian Lowitt; the filing does not establish that this proposed sale was completed, so it does not show a completed change in public ownership or company capital.

The shares were acquired from the issuer as compensation on May 19, 2025; J.P. Morgan Securities LLC is identified as broker and Nasdaq as the market. The filing does not state a sale price, trading plan, or post-sale holdings, so it does not quantify proceeds or the filer's remaining ownership.

The filing separately records 37,143 common shares sold by Ian Lowitt on June 12, 2026, without stating whether that earlier sale relates to the July 13 proposed sale.

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Accepted by SEC EDGAR 07/13/2026 - 04:03 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	0001379623
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 plc
SEC File Number	001-42020
Address of Issuer	155 Bishopsgate London EC2M 3TQ UNITED KINGDOM na
Phone	442076556000
Name of Person for Whose Account the Securities are To Be Sold	Ian Lowitt
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	CEO

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	J.P. Morgan Securities LLC 270 Park Avenue 10th Floor New York NY 10017	37142	2446915	71930870	07/13/2026	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	05/19/2025	Compensation	Issuer			37142	05/19/2025	NA

* 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
Ian Lowitt 155 BISHOPSGATE London EC2M 3TQ X0 NA	Common	06/12/2026	37143	2316497

144: Remarks and Signature

Remarks	The sales of shares set forth herein are made in connection with a selling plan entered into on 12 March 2026 that is intended to comply with Rule 10b5-1
Date of Notice	07/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/12/2026
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	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Ian Lowitt
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)