MAREX GROUP PLC (MRX) Institutional Ownership Changes & 13F Activity

MAREX GROUP PLC (MRX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC and Polen Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-140,26780,520$3,589,582
Q4 2025Renaissance Technologies LLCSell-294,100220,787$8,469,389
Q3 2025Renaissance Technologies LLCBuy93,800514,887$17,310,501
Q2 2025Renaissance Technologies LLCBuy243,462421,087$16,620,304
Q2 2025Polen Capital ManagementBuy18,52318,523$731,103
Q1 2025Renaissance Technologies LLCBuy45,300177,625$6,273,715
Q4 2024Renaissance Technologies LLCSell-9,275132,325$4,124,570
Q3 2024Renaissance Technologies LLCBuy141,600141,600$3,344,592

Frequently asked questions about MRX activity

  • Which institutional owners are buying MRX?

    Institutional owners buying MRX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MRX activity?

    "Buy" means an investor increased their reported position in MRX compared to the prior reporting period. This reflects growing exposure to MAREX GROUP PLC (MRX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MRX increasing?

    Institutional interest in MRX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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