Ian T. Lowitt - 13 Jul 2026 Form 4 Insider Report for Marex Group Ltd (MRX)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: MRX
Reported as of: 13 Jul 2026
Net transaction value: -$2,391,703
SEC form: 4
Accepted by SEC: 15 Jul 2026, 16:05:03 UTC
Prior SEC filing: 16 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Scott Linsley as Attorney-in-Fact, for Ian T. Lowitt

Key filing fact

Ian T. Lowitt filed Form 4 for Marex Group Ltd (MRX) on 15 Jul 2026.

Key facts

This page summarizes Ian T. Lowitt's Form 4 filing for Marex Group Ltd (MRX).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 15 Jul 2026, 16:05.

Change

Previous filing in this sequence was filed on 16 Jun 2026.
Current net transaction value: -$2,391,703.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001379623 Primary reporting owner

Lowitt Ian T

Relationship: Chief Executive Officer, Director
Address: C/O MAREX GROUP LIMITED, 155 BISHOPSGATE, LONDON, UNITED KINGDOM
Signature: /s/ Scott Linsley as Attorney-in-Fact, for Ian T. Lowitt
Signature date: 15 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MRX transaction

Ordinary Shares

Sale

Transaction value: $1,758,560
Shares: -27,398
Change %: -0.97%
Price: $64.19
Shares after: 2,803,960
Date: 13 Jul 2026
Ownership: Direct
Footnotes: F1, F2

MRX transaction

Ordinary Shares

Sale

Transaction value: $581,325
Shares: -8,957
Change %: -0.32%
Price: $64.90
Shares after: 2,795,003
Date: 13 Jul 2026
Ownership: Direct
Footnotes: F1, F3

MRX transaction

Ordinary Shares

Sale

Transaction value: $51,819
Shares: -787
Change %: -0.03%
Price: $65.84
Shares after: 2,794,216
Date: 13 Jul 2026
Ownership: Direct
Footnotes: F1, F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 5 footnotes

Footnote F1

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on March 12, 2026.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $63.66 to $64.6533, 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.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $64.66 to $65.63, 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.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in transactions at prices ranging from $65.66 to $66.09, 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.

Footnote F5

The number of ordinary shares reported herein includes 194,411 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.