Marex Group's Paolo Tonucci sells 16,666 shares

Marex Group Ltd's Chief Strategist and CEO, Capital Markets reported sales under a Rule 10b5-1 plan entered into on October 22, 2025.

Rhea-AI Filing Summary

Marex Group Ltd (MRX) officer Paolo Tonucci, identified as Chief Strategist and CEO, Capital Markets, sold 15,506 ordinary shares at a weighted average price of $71.9819 per share and 1,160 ordinary shares at a weighted average price of $72.6382 per share on October 12, 2026. The sales were made pursuant to a Rule 10b5-1 plan entered into on October 22, 2025. The respective transaction prices ranged from $71.39 to $72.37 and from $72.42 to $72.98.

Insider Trade Summary 10b5-1

Net Seller: 16,666 shares

Net Sell 2 txns

Insider Tonucci Paolo

Role See Remarks

Sold 16,666 shs ($1.20M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares F1, F2	15,506	$71.9819	$1.12M
Sale	Ordinary Shares F1, F3, F4	1,160	$72.6382	$84K

Holdings After Transaction: Ordinary Shares — 1,252,905 shares (Direct)

Footnotes (4)

1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on October 22, 2025.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $71.39 to $72.37, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $72.42 to $72.98, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. F4. The number of ordinary shares reported herein includes (i) 20,628 shares underlying the Issuer's 2022 Annual Long Term Incentive Plan, and (ii) 220,746 shares underlying deferred bonus plan awards previously granted to the Reporting Person. Each award represents a contingent right to receive one (1) ordinary share of the Issuer upon vesting and settlement of the applicable award.

Key Figures

Ordinary shares sold: 16,666 shares First sale: 15,506 shares Weighted average price: $71.9819 per share +4 more

7 metrics

Ordinary shares sold 16,666 shares Two reported sales on October 12, 2026

First sale 15,506 shares October 12, 2026

Weighted average price $71.9819 per share 15,506-share sale on October 12, 2026

First sale price range $71.39–$72.37 per share 15,506-share sale

Second sale 1,160 shares October 12, 2026

Weighted average price $72.6382 per share 1,160-share sale on October 12, 2026

Second sale price range $72.42–$72.98 per share 1,160-share sale

Key Terms

Rule 10b5-1 plan, weighted average price, 2022 Annual Long Term Incentive Plan, contingent right

4 terms

Rule 10b5-1 plan regulatory

"sales reported ... were effected pursuant to a Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

2022 Annual Long Term Incentive Plan financial

"shares underlying the Issuer's 2022 Annual Long Term Incentive Plan"

contingent right financial

"Each award represents a contingent right to receive one (1) ordinary share"

FAQ

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

How many MRX shares did Paolo Tonucci sell?

Paolo Tonucci sold 16,666 ordinary shares on October 12, 2026: 15,506 shares at a weighted average price of $71.9819 and 1,160 shares at $72.6382. The sales were made pursuant to a Rule 10b5-1 plan he entered into on October 22, 2025.

What awards are included in Paolo Tonucci's reported MRX share count?

The reported number of ordinary shares includes 20,628 shares underlying the Issuer's 2022 Annual Long Term Incentive Plan and 220,746 shares underlying deferred bonus plan awards previously granted to him. Each award represents a contingent right to receive one ordinary share upon vesting and settlement.

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

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Available on EDGAR 10/14/2026 - 04:05 PM EDT Accepted by SEC EDGAR 10/14/2026 - 04:05 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tonucci Paolo

(Last) (First) (Middle)

C/O MAREX GROUP LIMITED, 155 BISHOPSGATE

(Street)

LONDON EC2M 3TQ

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
Marex Group Ltd [ MRX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	10/12/2026		S(1)		15,506	D	$71.9819(2)	1,254,065	D
Ordinary Shares	10/12/2026		S(1)		1,160	D	$72.6382(3)	1,252,905(4)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on October 22, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $71.39 to $72.37, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $72.42 to $72.98, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. The number of ordinary shares reported herein includes (i) 20,628 shares underlying the Issuer's 2022 Annual Long Term Incentive Plan, and (ii) 220,746 shares underlying deferred bonus plan awards previously granted to the Reporting Person. Each award represents a contingent right to receive one (1) ordinary share of the Issuer upon vesting and settlement of the applicable award.

Remarks:

Chief Strategist and CEO, Capital Markets

	/s/ Scott Linsley as Attorney-in-Fact, for Paolo Tonucci	10/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)