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 (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Price T Rowe Associates Inc, Invesco Ltd., Ameriprise Financial Inc, Alliancebernstein L.P., and Westwood Holdings Group Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncBuy+10,800+14.2%87,087$5.31MQ2 2026Sep 23, 2026
State Street CorpBuy+153,270+17.5%1,026,731$62.58MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheSell-21,772-7.0%289,033$17.62MQ2 2026Sep 09, 2026
Brown, Lisle/Cummings, Inc.Buy+15+26.8%71$4.33KQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-2,124-71.2%858$52.30KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+1,390+28.2%6,320$385.21KQ2 2026Aug 19, 2026
Formula Growth LtdBuy+13,700—13,700$835.01KQ2 2026Aug 17, 2026
Price T Rowe Associates IncBuy+3,017,312+158.3%4,923,341$300.08MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+1,404,552—1,404,552$85.61MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+904,162—904,162$55.11MQ2 2026Aug 14, 2026
Alliancebernstein L.P.Buy+870,311+50.3%2,600,436$115.93MQ2 2026Aug 14, 2026
Westwood Holdings Group IncSell-532,163-98.9%5,693$346.99KQ2 2026Aug 14, 2026
Tudor Investment Corp Et AlBuy+372,910—372,910$22.73MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-346,124-20.6%1,335,436$81.39MQ2 2026Aug 14, 2026
Loomis Sayles & Co L PSell-291,920-15.2%1,626,702$99.15MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Sell-277,875-80.2%68,815$4.19MQ2 2026Aug 14, 2026
Alyeska Investment Group, L.P.Buy+227,782+1346.8%244,695$14.91MQ2 2026Aug 14, 2026
Samlyn Capital, LlcSell-205,627-12.2%1,483,250$90.40MQ2 2026Aug 14, 2026
Voloridge Investment Management, LlcSell-193,946-86.4%30,567$1.86MQ2 2026Aug 14, 2026
Ophir Asset Management Pty LtdBuy+144,965+11.6%1,391,511$84.81MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdSell-143,173-24.2%449,433$27.39MQ2 2026Aug 14, 2026
Royce & Associates LpSell-141,451-11.3%1,111,339$67.68MQ2 2026Aug 14, 2026
Susquehanna Fundamental Investments, LlcBuy+139,758+884.7%155,555$9.48MQ2 2026Aug 14, 2026
Engle Capital Management, L.P.Sell-121,959-60.7%79,037$4.82MQ2 2026Aug 14, 2026
Wellington Management Group LlpBuy+119,563+18.2%775,023$47.24MQ2 2026Aug 14, 2026
Bank Of America CorpSell-93,741-24.3%291,285$17.75MQ2 2026Aug 14, 2026
Thrivent Financial For LutheransBuy+74,611—74,611$4.55MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+69,645+14.4%551,753$33.63MQ2 2026Aug 14, 2026
Hrt Financial LpBuy+61,382+37.0%227,503$13.87MQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+56,322+65.3%142,547$8.69MQ2 2026Aug 14, 2026
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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.

MRX Institutional Ownership Changes and 13F Activity Q2 2026 | InsiderSet