MRX — MAREX GROUP PLC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying MRX?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 1 tracked investors who changed their MRX position last quarter, 0 bought and 1 sold (0% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 57/100 in a Contraction regime).
- +2 tracked investors reported holding MRX at their latest filing
- +Macro Health is 57/100 in a Contraction regime — historically acceptable for this sectorsource
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/6/2026.
About MAREX GROUP PLC (MRX)
MAREX GROUP PLC (MRX) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $40M. Across recent filings, tracked investors recorded 2 new positions, 3 increased, 2 reduced, and 2 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in MRX
How many top investors track MRX
Only 2 tracked investors report this position.
MRX Ownership Composition
How MAREX GROUP PLC is held across tracked investor types, based on reported 13F positions.
- Macro87.6%
- Multi-Strategy / Quant12.4%
Tracked investors currently reporting MRX
3 tracked investors have since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares52.7KValue$3.2M% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares372.9KValue$22.7M% Portfolio0.03%
Previously held MRX
These investors reported MRX in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Izzy Englander | Millennium Management | 82.8K | $3.2M | Dec 31, 2025 |
| George Soros | Soros Fund Management | 124.5K | $4.9M | Jun 30, 2025 |
| Steve Cohen | Point72 Asset Management | 82.8K | $2.8M | Sep 30, 2025 |
Recent activity
- New$4.9MAug 14, 2025
- Sold$0(-100.00%)Nov 14, 2025
- Increased$415.7K(153.68%)Nov 14, 2024
- Reduced$455.1K(-17.05%)Feb 14, 2025
- Increased$1.6M(213.70%)Jul 21, 2025
- Increased$3.6M(98.02%)Aug 14, 2025
- Reduced$2.8M(-8.70%)Nov 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- New$138.8KSep 16, 2024
Frequently asked questions
- How many institutional investors hold MRX?
- 2 tracked institutional investors disclosed a position in MRX (MAREX GROUP PLC) in their most recent 13F filing.
- Who is the largest institutional holder of MRX?
- Izzy Englander, Millennium Management, holds the largest disclosed position in MRX, valued at $40M.
- Did institutional ownership of MRX increase or decrease?
- Across recent 13F filings, tracked investors recorded 2 new positions, 3 increased, 2 reduced, and 2 fully exited MRX.
- Where does this MRX ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.