MRX · Insider trading · 13F holders · Congress trades
Marex Group Ltd (MRX)
Who is buying and selling MRX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 18
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $5.8M
- Congress trades, 12 months
- 0
MRX at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 3 MRX insiders filed 6 sales worth $5.8M on SEC Form 4, and no open-market purchases; 5 of the sales were pre-planned under Rule 10b5-1.
- 18 13F filers hold MRX among their 50 largest positions, worth $549.7M combined, including Robert Pohly. The biggest bets by portfolio weight are Praetorian PR LLC (9.7%), Ophir Asset Management Pty Ltd (7.0%) and Epacria Capital Partners, LLC (3.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in MRX.
- MRX last closed at $65.05 on Oct 29, 2026.
MRX insider trading
Between Aug 1, 2026 and Oct 29, 2026, 3 MRX insiders filed 6 sales worth $5.8M on SEC Form 4, and no open-market purchases; 5 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 14, 2026 | Tonucci Paolo | See Remarks | Sale10b5-1 | 16,666 | $72.03 | $1.2M | SEC |
| Oct 14, 2026 | Van Den Born Simon | President | Sale10b5-1 | 15,272 | $72.04 | $1.1M | SEC |
| Sep 16, 2026 | Tonucci Paolo | See Remarks | Sale10b5-1 | 16,666 | $70.87 | $1.2M | SEC |
| Sep 16, 2026 | Van Den Born Simon | President | Sale10b5-1 | 15,271 | $70.87 | $1.1M | SEC |
| Aug 18, 2026 | Irvin Rob | Chief Financial Officer, Director | Sale | 3,700 | $70.96 | $263K | SEC |
| Aug 12, 2026 | Tonucci Paolo | See Remarks | Sale10b5-1 | 16,668 | $60.92 | $1.0M | SEC |
Who owns MRX? Hedge funds and superinvestors
18 13F filers hold MRX among their 50 largest positions, worth $549.7M combined, including Robert Pohly. The biggest bets by portfolio weight are Praetorian PR LLC (9.7%), Ophir Asset Management Pty Ltd (7.0%) and Epacria Capital Partners, LLC (3.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Superinvestors holding MRX: Robert Pohly 1.5%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Wasatch Advisors LPAsset manager | 0.9% | $120.6M | 1,728,561 | — | Q3 2026 |
| Robert PohlyHedge fund | 1.5% | $90.4M | 1,483,250 | -12.2% shares | Q2 2026 |
| Ophir Asset Management Pty LtdAsset manager | 7.0% | $84.8M | 1,391,511 | +11.6% shares | Q2 2026 |
| Granahan Investment Management, LLCAsset manager | 2.7% | $76.4M | 1,254,283 | +2.5% shares | Q2 2026 |
| Royce & Associates LPMutual fund manager | 0.5% | $67.7M | 1,111,339 | -11.3% shares | Q2 2026 |
| Praetorian PR LLCHedge fund | 9.7% | $30.5M | 500,000 | +0.0% shares | Q2 2026 |
| Algert Global LLCInstitutional asset manager | 0.3% | $25.1M | 411,697 | — | Q2 2026 |
| Intrinsic Edge Capital Management LLCHedge fund | 2.0% | $16.6M | 272,776 | — | Q2 2026 |
| Globeflex Capital L PAsset manager | 1.7% | $12.9M | 212,125 | — | Q2 2026 |
| Moody Aldrich Partners LLCAsset manager | 1.4% | $7.2M | 103,746 | — | Q3 2026 |
| Engle Capital Management, L.P.Hedge fund | 1.3% | $4.8M | 79,037 | -60.7% shares | Q2 2026 |
| Epacria Capital Partners, LLCHedge fund | 3.1% | $4.0M | 65,400 | +0.0% shares | Q2 2026 |
| Nkcfo LLCInvestment manager | 0.8% | $2.5M | 41,800 | — | Q2 2026 |
| Jackson Creek Investment Advisors LLCMutual fund manager | 0.6% | $1.9M | 29,992 | — | Q2 2026 |
| Sidoxia Capital Management, LLCWealth manager | 1.1% | $1.6M | 22,803 | — | Q3 2026 |
| Genesee Capital Advisors, LLCWealth manager | 0.4% | $1.4M | 19,449 | — | Q3 2026 |
| Dauntless Investment Group, LLCInvestment manager | 1.1% | $629K | 10,324 | -49.2% shares | Q2 2026 |
| Marble Bar Asset Management LLPHedge fund | 0.4% | $549K | 9,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 4, Q2 2026: 14). Screen MRX in the grand portfolio →
MRX stock trades by members of Congress
No member of Congress has disclosed a trade in MRX.
MRX questions and answers
Are insiders buying MRX stock?
Between Aug 1, 2026 and Oct 29, 2026, 3 MRX insiders filed 6 sales worth $5.8M on SEC Form 4, and no open-market purchases; 5 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own MRX?
18 13F filers hold MRX among their 50 largest positions, worth $549.7M combined, including Robert Pohly. The biggest bets by portfolio weight are Praetorian PR LLC (9.7%), Ophir Asset Management Pty Ltd (7.0%) and Epacria Capital Partners, LLC (3.1%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded MRX?
No member of Congress has disclosed a trade in MRX.
Who is the largest holder of MRX?
Among 13F filers, Wasatch Advisors LP reports the largest MRX position, $120.6M (1,728,561 shares) in its Q3 2026 13F. The biggest bet by portfolio weight is Praetorian PR LLC's: 9.7% of its portfolio.
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