Marex Group CFO reports 38,104-share stake

Marex Group plc director and Chief Financial Officer Irvin Rob filed an initial ownership report showing beneficial ownership of 38,104 ordinary shares.

Rhea-AI Filing Summary

Marex Group plc director and Chief Financial Officer Irvin Rob filed an initial ownership report showing beneficial ownership of 38,104 ordinary shares. This total includes 32,443 shares tied to deferred bonus plan awards, which are contingent rights that only convert into ordinary shares when the awards vest and settle.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Irvin Rob

Role Chief Financial Officer

Type	Security	Shares	Price	Value
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 38,104 shares (Direct)

Footnotes (1)

1. F1. The number of ordinary shares reported herein includes 32,443 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.

FAQ

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

What does Irvin Rob report owning in Marex Group (MRX)?

Irvin Rob reports beneficial ownership of 38,104 ordinary shares of Marex Group plc. This figure includes both currently held shares and those linked to deferred bonus plan awards that may convert into shares when vesting conditions are met.

How many Marex Group (MRX) shares are tied to deferred bonus awards?

The filing states that 32,443 shares are underlying deferred bonus plan awards previously granted to Irvin Rob. Each award represents a contingent right to receive one ordinary share upon vesting and settlement of the applicable award.

Is this Marex Group (MRX) filing a buy or sell by the CFO?

This Form 3 reflects initial beneficial ownership and does not report a new purchase or sale. It simply discloses Irvin Rob’s existing position, including deferred bonus awards that may convert into ordinary shares in the future.

What role does Irvin Rob hold at Marex Group (MRX)?

Irvin Rob is identified as a director and Chief Financial Officer of Marex Group plc. The Form 3 filing outlines his beneficial ownership of ordinary shares in the company as of the reported date, including deferred bonus plan awards.

Do the deferred bonus awards in Marex Group (MRX) vest automatically?

The deferred bonus plan awards do not vest automatically; they are contingent rights. Each award converts into one ordinary share only upon vesting and settlement of the applicable award, according to the description in the ownership footnote.

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

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Accepted by SEC EDGAR 03/18/2026 - 04:05 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Irvin Rob

(Last) (First) (Middle)

C/O MAREX GROUP PLC

155 BISHOPSGATE

(Street)

LONDON EC2M 3TQ

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Marex Group plc [ MRX ]

3a. Foreign Trading Symbol

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares	38,104(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The number of ordinary shares reported herein includes 32,443 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:

Exhibit 24 - Power of Attorney

	/s/ Scott Linsley, as Attorney-in-Fact	03/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)