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Public ownership evidence

Marex Group Limited Ordinary Shares (MRX) Ownership Disclosures

Read MRX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-10-142026-10-12Van Den Born SimonS1,260Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-10-12 and its public availability date is 2026-10-14. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001193125-26-421661 ↗SEC 0001193125-26-421661 ↗SEC 0001193125-26-421660 ↗

Recent Form 4 activity

Inspect all 17 displayed rows: Recent Form 4 activity

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2026-10-142026-10-12Van Den Born SimonS1,260Not reported
2026-10-142026-10-12Van Den Born SimonS14,012Not reported
2026-10-142026-10-12Tonucci PaoloS1,160Not reported
2026-10-142026-10-12Tonucci PaoloS15,506Not reported
2026-09-162026-09-14Tonucci PaoloS2,952Not reported
2026-09-162026-09-14Tonucci PaoloS13,714Not reported
2026-09-162026-09-14Van Den Born SimonS2,655Not reported
2026-09-162026-09-14Van Den Born SimonS12,616Not reported
2026-08-222026-08-19Jethwa NileshA67,163Not reported
2026-08-222026-08-19Tonucci PaoloA38,921Not reported
2026-08-222026-08-19Van Den Born SimonA33,582Not reported
2026-08-222026-08-19Lowitt Ian TA77,843Not reported
2026-08-192026-08-14Irvin RobS200Not reported
2026-08-192026-08-14Irvin RobS3,500Not reported
2026-08-132026-08-10Tonucci PaoloS455Not reported
2026-08-132026-08-10Tonucci PaoloS3,963Not reported
2026-08-132026-08-10Tonucci PaoloS12,250Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25858$52,295None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2552,295$858,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-206,320$385,208None
FORMULA GROWTH LTD2026-06-302026-08-1813,700$835,015None
Oakmont Investment Advisors, Inc.2026-06-302026-08-158,160$497,352None
Massar Capital Management, LP2026-06-302026-08-1525,991$1,584,151None
Marex Group Ltd2026-06-302026-08-15162,617$9,911,506None
Praetorian PR LLC2026-06-302026-08-15500,000$30,475,000None
Ameritas Advisory Services, LLC2026-06-302026-08-15212$12,913None
T. Rowe Price Investment Management, Inc.2026-06-302026-08-15385,479$23,495,000None
Ophir Asset Management Pty Ltd2026-06-302026-08-151,391,511$84,812,595None
Militia Capital Partners, LP2025-12-312026-08-1540,000$1,534,400None
Militia Capital Partners, LP2025-09-302026-08-1536,000$1,210,320None
Militia Capital Partners, LP2025-06-302026-08-1530,000$1,184,100None
Aquatic Capital Management LLC2026-06-302026-08-1517,662$1,076,499None
EPACRIA CAPITAL PARTNERS, LLC2026-06-302026-08-1565,400$3,986,130None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15171,846$10,474,014None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15171,846$10,474,014None
Qube Research & Technologies Ltd2026-06-302026-08-15449,433$27,392,941None
Neo Ivy Capital Management2026-06-302026-08-158,492$517,587None
OSAIC HOLDINGS, INC.2026-06-302026-08-1521$1,280None
OSAIC HOLDINGS, INC.2026-06-302026-08-15213$12,983None
Squarepoint Ops LLC2026-06-302026-08-1556,688$3,455,134None
Trexquant Investment LP2026-06-302026-08-1555,286$3,369,682None
MetLife Investment Management, LLC2026-06-302026-08-1536,337$2,214,740None
BlueCrest Capital Management Ltd2026-06-302026-08-154,000$243,800None
JANE STREET GROUP, LLC2026-06-302026-08-1521,300$1,298,235Put
JANE STREET GROUP, LLC2026-06-302026-08-1520,700$1,261,665Call
Orion Porfolio Solutions, LLC2026-06-302026-08-1531,744$1,934,794None
VOLORIDGE INVESTMENT MANAGEMENT, LLC2026-06-302026-08-1530,567$1,863,059None
Uniplan Investment Counsel, Inc.2026-06-302026-08-151,102$67,176None
Uniplan Investment Counsel, Inc.2026-06-302026-08-1544,310$2,700,734None
Legal & General Group Plc2026-06-302026-08-15152,164$9,274,396None
Legal & General Group Plc2026-06-302026-08-156,043$368,321None
HRT FINANCIAL LP2026-06-302026-08-15227,503$13,866,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-155,242$319,500None
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC2026-06-302026-08-15155,555$9,481,077None
Granahan Investment Management, LLC2026-06-302026-08-151,254,283$76,448,549None
Hudson Bay Capital Management LP2026-06-302026-08-15228,742$13,941,825None
Engle Capital Management, L.P.2026-06-302026-08-1579,037$4,817,305None
Marble Bar Asset Management LLP2026-06-302026-08-159,000$548,550None
Numerai GP LLC2026-06-302026-08-154,118$250,992None
Balyasny Asset Management L.P.2026-06-302026-08-1568,815$4,194,274None
Thrivent Financial for Lutherans2026-06-302026-08-1574,611$4,548,000None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15716$45,989None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15383$23,344None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15841,466$51,287,353None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1562,313$3,797,978None
Kemnay Advisory Services Inc.2026-06-302026-08-15432$26,330None
Freestone Grove Partners LP2026-06-302026-08-154,982$303,653None

90-day public filing window, up to 50 source positions.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗FORMULA GROWTH LTD ↗Oakmont Investment Advisors, Inc. ↗Massar Capital Management, LP ↗Marex Group Ltd ↗Praetorian PR LLC ↗Ameritas Advisory Services, LLC ↗T. Rowe Price Investment Management, Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.