Marex Group plc Ordinary Shares (MRX) Insider Trading
Over the last 3 months, MRX insiders made 0 open-market buys and 16 sales, a net sale of -$8.1M (SEC Form 4). Over the last 6 months, 168 institutions increased and 117 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
16
Net (3m)
-$8.1M
Insider trades by month Buys Sells
Aug
Apr
May
Jun
Jul
Aug
Context3-month price +32.4%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 21, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Grant | 77,843 | — |
| Aug 21, 2026 | Jethwa Nileshofficer: CEO, Marex Solutions | Grant | 67,163 | — |
| Aug 21, 2026 | Tonucci Paoloofficer: See Remarks | Grant | 38,921 | — |
| Aug 21, 2026 | Van Den Born Simonofficer: President | Grant | 33,582 | — |
| Aug 18, 2026 | Irvin Robdirector, officer: Chief Financial Officer | Sell | 200 | $71.86 |
| Aug 18, 2026 | Irvin Robdirector, officer: Chief Financial Officer | Sell | 3,500 | $70.91 |
| Aug 12, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 12,250 | $60.64 |
| Aug 12, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 3,963 | $61.62 |
| Aug 12, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 455 | $62.22 |
| Jul 15, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Sell | 27,398 | $64.19 |
| Jul 15, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Sell | 8,957 | $64.90 |
| Jul 15, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Sell | 787 | $65.84 |
| Jul 15, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 11,850 | $64.22 |
| Jul 15, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 4,584 | $64.85 |
| Jul 15, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 232 | $65.73 |
| Jun 16, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 14,199 | $62.51 |
| Jun 16, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 809 | $63.00 |
| Jun 16, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Sell | 32,813 | $62.29 |
| Jun 16, 2026 | Lowitt Ian Tdirector, officer: Chief Executive Officer | Sell | 4,330 | $62.94 |
| Jun 16, 2026 | Tonucci Paoloofficer: See Remarks | Sell | 1,658 | $61.74 |
| Jun 11, 2026 | Assi Georgesdirector | Grant | 2,070 | — |
| Jun 11, 2026 | Schweinitz Konstantin Graf vondirector | Grant | 2,070 | — |
| Jun 11, 2026 | Ing Sarahdirector | Grant | 2,070 | — |
| Jun 11, 2026 | Pietrowicz John W.director | Grant | 2,070 | — |
| Jun 11, 2026 | Myers Linda Kristinedirector | Grant | 2,070 | — |
| Jun 11, 2026 | Pickering Robert Markdirector | Grant | 2,070 | — |
| Jun 3, 2026 | Texier Thomasofficer: Group Head of Clearing | Sell | 1,303 | $53.22 |
| Jun 3, 2026 | Texier Thomasofficer: Group Head of Clearing | Sell | 269 | $53.98 |
| Jun 2, 2026 | Myers Linda Kristinedirector | Tax | 1,115 | $52.94 |
| Jun 2, 2026 | Ing Sarahdirector | Tax | 1,310 | $52.94 |
Source: MRX SEC Form 4 filings, latest Aug 21, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MRX positions over the last 6 months (SEC Form 13F).
Increased
168
New positions
92
Reduced
117
Sold out
39
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Increased | 5.4M | Aug 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 4.9M | Aug 14, 2026 |
| BlackRock, Inc. | Increased | 4.6M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 4.4M | May 13, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Unchanged | 3.5M | May 13, 2026 |
| FMR LLC | Increased | 3.5M | May 15, 2026 |
| Capital International Investors | Reduced | 3.3M | Aug 12, 2026 |
| ALLIANCEBERNSTEIN L.P. | Increased | 2.6M | Aug 14, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 1.9M | May 14, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.9M | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 1.7M | May 15, 2026 |
| SAMLYN CAPITAL, LLC | Increased | 1.7M | May 15, 2026 |
| WASATCH ADVISORS LP | Increased | 1.7M | Jul 10, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 1.7M | May 15, 2026 |
| LOOMIS SAYLES & CO L P | Reduced | 1.6M | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.