Marex Group (MRX) director logs tax-withholding share disposition, retains holdings

Rhea-AI Filing Summary

Marex Group plc director Sarah Ing reported routine share movements. The filing shows 1,310 Ordinary Shares were disposed of to cover a tax withholding obligation linked to the vesting of previously reported restricted share awards, at a reference price of $52.94 per share.

After this tax-withholding disposition, Ing holds 8,825 Ordinary Shares directly and 535 Ordinary Shares indirectly through her spouse. The transaction reflects compensation-related tax settlement rather than an open-market purchase or sale.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Ing Sarah

Role null

Type	Security	Shares	Price	Value
Tax Withholding	Ordinary Shares	1,310	$52.94	$69K
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 8,825 shares (Direct, null); Ordinary Shares — 535 shares (Indirect, By spouse)

Footnotes (1)

1. Represents the number of ordinary shares withheld to satisfy the tax withholding obligation in connection with the vesting of certain previously reported shares underlying restricted share awards. The price reported represents the closing price of the Issuer's ordinary shares on the Nasdaq Stock Market LLC on May 29, 2026.

Key Figures

Tax-withheld shares: 1,310 shares Reference share price: $52.94 per share Direct holdings after transaction: 8,825 shares +2 more

5 metrics

Tax-withheld shares 1,310 shares Ordinary Shares withheld for tax obligations on vesting restricted awards

Reference share price $52.94 per share Closing price on Nasdaq on May 29, 2026 used for tax calculation

Direct holdings after transaction 8,825 shares Ordinary Shares directly held by Sarah Ing following tax-withholding disposition

Indirect holdings via spouse 535 shares Ordinary Shares held indirectly by spouse, reported as indirect ownership

Tax-withholding transactions 1 transaction, 1,310 shares Aggregate tax-withholding count and shares in transaction summary

Key Terms

restricted share awards, tax withholding obligation, Ordinary Shares, indirect ownership

4 terms

restricted share awards financial

"vesting of certain previously reported shares underlying restricted share awards"

Restricted share awards are grants of company stock given to employees or executives that cannot be sold or transferred until certain conditions—typically staying with the company for a set time or meeting performance goals—are met. They matter to investors because they can dilute existing shares when they vest, signal management’s incentives and confidence, and affect a company’s future earnings per share much like a delayed paycheck that becomes available only after you meet agreed milestones.

tax withholding obligation financial

"withheld to satisfy the tax withholding obligation in connection with the vesting"

Ordinary Shares financial

"Represents the number of ordinary shares withheld to satisfy the tax withholding obligation"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

indirect ownership financial

"total_shares_following_transaction 535.0000, direct_or_indirect I, nature_of_ownership By spouse"

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Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Ing Sarah

(Last) (First) (Middle)

C/O MAREX GROUP PLC, 155 BISHOPSGATE

(Street)

LONDON UNITED KINGDOM EC2M 3TQ

(City) (State) (Zip)

UNITED KINGDOM

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

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	06/01/2026		F		1,310(1)	D	$52.94(2)	8,825	D
Ordinary Shares								535	I	By spouse

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. Represents the number of ordinary shares withheld to satisfy the tax withholding obligation in connection with the vesting of certain previously reported shares underlying restricted share awards.

2. The price reported represents the closing price of the Issuer's ordinary shares on the Nasdaq Stock Market LLC on May 29, 2026.

	/s/ Scott Linsley as Attorney-in-Fact, for Sarah Ing	06/02/2026
	** 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)

FAQ

What did Marex Group (MRX) director Sarah Ing report in this Form 4?

Sarah Ing reported a tax-related share disposition, not an open-market trade. 1,310 Marex Group Ordinary Shares were withheld to satisfy tax obligations arising from vesting of previously reported restricted share awards.

How many Marex Group (MRX) shares were used for tax withholding?

The filing shows 1,310 Ordinary Shares were withheld to cover tax obligations. This came from vesting of earlier reported restricted share awards, making the event compensation-related rather than a discretionary market transaction by the director.

What share price is referenced in Sarah Ing’s Marex Group (MRX) Form 4?

The Form 4 references a price of $52.94 per Ordinary Share. A footnote explains this is the closing price of Marex Group’s Ordinary Shares on the Nasdaq Stock Market LLC on May 29, 2026, used for the tax-withholding calculation.

How many Marex Group (MRX) shares does Sarah Ing hold after the reported transactions?

Following the tax-withholding disposition, Sarah Ing directly holds 8,825 Marex Group Ordinary Shares. She also has an indirect interest in 535 Ordinary Shares held by her spouse, as reported under indirect ownership in the Form 4.

Was Sarah Ing’s Marex Group (MRX) Form 4 a market sale or a routine tax event?

The Form 4 reflects a routine tax event, not a market sale. Shares were withheld to satisfy tax withholding obligations on vesting restricted share awards, classified as a tax-withholding disposition rather than an open-market sell order.