Marex UK HoldingsMRX
13F holders, Q4 2024 (December 31)At the end of Q4 2024, 106 institutions reported holding Marex UK Holdings Ltd. (MRX) in their 13F filings, up 35 from Q3 2024. 40 opened new positions and 6 sold out. The largest holders were Capital International Investors ($81.0M), William Blair Investment Management, LLC ($78.1M) and Granahan Investment Management, LLC ($68.3M). 5 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Marex UK Holdings Ltd.
- Filed as
- MAREX GROUP PLC (Q4 2024)
- CUSIP
- G5S37H101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $64.5M |
| Exits | 6 | $10.1M |
All 13F filers, Q3 2024 → Q4 2024: 10,749,046 shares bought and 986,818 shares sold, net +9,762,228 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 106 holders
| Capital International Investors | 0.02% | Add +73.2% | 2,597,449 | $81.0M |
| William Blair Investment Management, LLC | 0.19% | Add +74.2% | 2,504,726 | $78.1M |
| Granahan Investment Management, LLC | 2.85% | Add +77.7% | 2,190,604 | $68.3M |
| Jennison Associates LLC | 0.04% | Add +85.0% | 2,063,763 | $64.3M |
| Royce & Associates LP | 0.42% | Add +19.1% | 1,449,091 | $45.2M |
| Grandeur Peak Global Advisors, LLC | 3.00% | Add +53.9% | 1,086,471 | $33.9M |
| Morgan Stanley | 0.00% | Add +100.7% | 1,010,900 | $31.5M |
| Sparta 24 Ltd. | 37.73% | Add +20.0% | 974,135 | $30.4M |
| Allspring Global Investments Holdings, LLC | 0.05% | Add +26.7% | 890,317 | $29.0M |
| BlackRock, Inc. | 0.00% | Add +4.8% | 865,019 | $27.0M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +6123.2% | 710,816 | $22.2M |
| Amundi | 0.01% | Add +4.0% | 599,231 | $19.5M |
| Bank of America Corp. | 0.00% | Add +254.1% | 527,333 | $16.4M |
| Marshall Wace, LLP | 0.02% | Add +21.6% | 488,580 | $15.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +10.1% | 486,316 | $15.2M |
| Principal Financial Group Inc. | 0.01% | Reduce -7.3% | 483,500 | $15.1M |
| Two Sigma Investments, LP | 0.04% | Add +275.6% | 483,495 | $15.1M |
| Adage Capital Partners Gp, L.L.C. | 0.02% | Reduce -15.6% | 450,274 | $14.0M |
| Millennium Management | 0.01% | Reduce -5.2% | 432,418 | $13.5M |
| Two Sigma Advisers, LP | 0.03% | Add +1324.1% | 425,800 | $13.3M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.03% | Add +60.0% | 400,000 | $12.5M |
| Samlyn Capital, LLC | 0.16% | Reduce -9.8% | 324,958 | $10.1M |
| Citadel Advisors | 0.01% | Reduce -36.8% | 311,582 | $9.7M |
| JPMorgan Chase & Co. | 0.00% | Add +248.0% | 284,629 | $8.9M |
| Russell Investments Group, Ltd. | 0.01% | Add +68.0% | 267,240 | $8.3M |
| Walleye Capital LLC | 0.08% | Add +376.1% | 245,710 | $7.7M |
| Portolan Capital Management, LLC | 0.47% | New | 223,614 | $7.0M |
| Voloridge Investment Management, LLC | 0.02% | New | 222,205 | $6.9M |
| Balyasny Asset Management L.P. | 0.02% | New | 204,155 | $6.4M |
| Lord, Abbett & Co. LLC | 0.02% | Add +3.0% | 169,125 | $5.3M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -10.8% | 166,241 | $5.2M |
| BNP Paribas Financial Markets | 0.00% | New | 153,910 | $4.8M |
| Alyeska Investment Group, L.P. | 0.02% | New | 150,000 | $4.7M |
| State of Wisconsin Investment Board | 0.01% | Add +10.9% | 144,754 | $4.5M |
| Horizon Kinetics Asset Management LLC | 0.06% | New | 141,374 | $4.4M |
| Moody National Bank Trust Division | 0.44% | Add +101.0% | 133,846 | $4.2M |
| Renaissance Technologies | 0.01% | Reduce -6.5% | 132,325 | $4.1M |
| Moody Aldrich Partners LLC | 0.72% | New | 125,135 | $3.9M |
| Seven Grand Managers, LLC | 1.78% | Add +66.7% | 125,000 | $3.9M |
| Wellington Management Group LLP | 0.00% | New | 121,378 | $3.8M |
| Cubist Systematic Strategies, LLC | 0.05% | Add +197.9% | 105,044 | $3.3M |
| Legal & General Group Plc | 0.00% | New | 96,887 | $3.0M |
| Renaissance Group LLC | 0.11% | New | 83,392 | $2.6M |
| American Century Companies Inc. | 0.00% | Add +135.6% | 80,886 | $2.5M |
| Boston Partners | 0.00% | Add +2.3% | 78,855 | $2.5M |
| Calamos Advisors LLC | 0.02% | New | 76,435 | $2.4M |
| Cantor Fitzgerald, L. P. | 0.09% | Reduce -20.9% | 75,652 | $2.4M |
| Penserra Capital Management LLC | 0.04% | New | 72,071 | $2.2M |
| Geode Capital Management, LLC | 0.00% | Add +1.1% | 67,908 | $2.1M |
| Qube Research & Technologies Ltd | 0.00% | New | 66,860 | $2.1M |
| Tudor Investment Corporation | 0.02% | New | 66,197 | $2.1M |
| Engineers Gate Manager LP | 0.03% | Add +533.3% | 62,852 | $2.0M |
| Jain Global LLC | 0.05% | — | 50,000 | $1.6M |
| Norges Bank | 0.00% | No change | 50,000 | $1.6M |
| UBS Group AG | 0.00% | Add +218.4% | 47,556 | $1.5M |
| Sei Investments Co. | 0.00% | Add +73.6% | 47,404 | $1.5M |
| Quantbot Technologies LP | 0.04% | Add +258.2% | 39,503 | $1.2M |
| Occudo Quantitative Strategies LP | 0.20% | Add +88.4% | 35,203 | $1.1M |
| Ameriprise Financial Inc. | 0.00% | Add +72.7% | 33,834 | $1.1M |
| Envestnet Asset Management Inc. | 0.00% | New | 33,584 | $1.0M |
| Kodai Capital Management LP | 0.04% | Reduce -42.0% | 32,152 | $1.0M |
| XTX Topco Ltd | 0.08% | Add +2.7% | 31,676 | $987K |
| Jump Financial, LLC | 0.02% | Add +38.4% | 29,227 | $911K |
| PDT Partners, LLC | 0.08% | New | 28,760 | $896K |
| Squarepoint Ops LLC | 0.00% | Add +0.9% | 28,756 | $896K |
| Verition Fund Management LLC | 0.00% | Add +72.2% | 27,288 | $851K |
| HRT Financial LP | 0.00% | New | 26,663 | $831K |
| Ghisallo Capital Management LLC | 0.05% | Reduce -75.0% | 25,000 | $779K |
| Harbour Capital Advisors, LLC | 0.14% | New | 19,235 | $645K |
| Wells Fargo & Company | 0.00% | Add +1237.8% | 19,799 | $617K |
| Freedom Investment Management, Inc. | 0.05% | New | 19,010 | $593K |
| Franklin Resources Inc. | 0.00% | New | 17,578 | $548K |
| Mackenzie Financial Corp. | 0.00% | New | 17,540 | $547K |
| Glenmede Trust Co. NA | 0.00% | New | 15,435 | $481K |
| Janney Capital Management LLC | 0.03% | Add +0.2% | 15,359 | $479K |
| Sandia Investment Management LP | 0.89% | Add +50.0% | 15,000 | $468K |
| Corsair Capital Management, L.P. | 0.10% | No change | 14,932 | $465K |
| Point72 Asset Management | 0.00% | Reduce -17.1% | 14,600 | $455K |
| Quadrature Capital Ltd | 0.01% | Reduce -67.3% | 14,449 | $450K |
| HighTower Advisors, LLC | 0.00% | New | 14,269 | $445K |
| Keybank National Association | 0.00% | New | 11,930 | $372K |
| Susquehanna International Group, LLP | 0.00% | Reduce -13.9% | 11,891 | $371K |
| Gsa Capital Partners LLP | 0.03% | New | 11,319 | $353K |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Reduce -59.3% | 8,881 | $277K |
| Trexquant Investment LP | 0.00% | New | 8,796 | $274K |
| Entropy Technologies, LP | 0.03% | New | 7,800 | $243K |
| Clear Harbor Asset Management, LLC | 0.02% | New | 7,799 | $243K |
| Wolverine Trading, LLC | 0.01% | New | 7,010 | $222K |
| Magnetar Financial LLC | 0.01% | New | 7,048 | $220K |
| Federated Hermes, Inc. | 0.00% | Reduce -40.0% | 6,000 | $187K |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 3,337 | $104K |
| US Bancorp \de | 0.00% | New | 2,947 | $92K |
| Gen-Wealth Partners Inc | 0.03% | New | 2,575 | $80K |
| State of Wyoming | 0.01% | Reduce -10.6% | 1,944 | $61K |
| Assetmark, Inc. | 0.00% | Reduce -18.4% | 1,476 | $46K |
| Simplex Trading, LLC | 0.00% | New | 706 | $22K |
| SBI Securities Co., Ltd. | 0.00% | — | 386 | $12K |
| Osaic Holdings, Inc. | 0.00% | New | 282 | $9K |
| Bell Investment Advisors, Inc | 0.00% | New | 152 | $5K |
| Hexagon Capital Partners LLC | 0.00% | Add +350.0% | 90 | $3K |
"% of holder's portfolio" is MRX's weight in each manager's 13F, not the share of Marex UK Holdings Ltd. the manager owns.