Marex Group
MRX · NASDAQ
$69.96+$1.42 (+2.07%)TodayMarket closed ·
Prev close $68.54
Who owns MRX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 37.9% of MRX’s shares.
- T. Rowe Price Associates, Inc.6.7%
- Fidelity Management & Research Company LLC6.2%
- BlackRock Institutional Trust Company, N.A.4.7%
- Capital International Investors4.5%
- Next 6 largest institutions15.8%
- All other shareholders62.1%
| Holder | Shares | % of shares |
|---|---|---|
| T. Rowe Price Associates, Inc. | 4.87M | 6.73% |
| Fidelity Management & Research Company LLC | 4.45M | 6.15% |
| BlackRock Institutional Trust Company, N.A. | 3.42M | 4.72% |
| Capital International Investors | 3.26M | 4.51% |
| Lowitt (Ian T) | 2.61M | 3.60% |
| AllianceBernstein L.P. | 2.60M | 3.59% |
| Wasatch Global Investors Inc | 1.68M | 2.33% |
| Loomis, Sayles & Company, L.P. | 1.63M | 2.25% |
| Samlyn Capital, LLC | 1.48M | 2.05% |
| Invesco Advisers, Inc. | 1.40M | 1.93% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| American Funds SMALLCAP World Fund | 3.18M | 4.39% |
| T. Rowe Price Integrated US SmCp Gro Eqty Fd | 1.25M | 1.72% |
| Invesco Discovery Fund | 1.21M | 1.68% |
| Fidelity Small Cap Value Fund | 819.20K | 1.13% |
| T. Rowe Price Communications & Technology Fund | 777.28K | 1.07% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $14.45M (30 trades) of MRX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Van Den Born Simon | Sale | 1.26K | $91.51K |
| Van Den Born Simon | Sale | 14.01K | $1.01M |
| Tonucci Paolo | Sale | 1.16K | $84.26K |
| Tonucci Paolo | Sale | 15.51K | $1.12M |
| Tonucci Paolo | Sale | 2.95K | $210.64K |
| Tonucci Paolo | Sale | 13.71K | $970.53K |
| Van Den Born Simon | Sale | 2.65K | $189.46K |
| Van Den Born Simon | Sale | 12.62K | $892.82K |
| Tonucci Paolo | Tax withholding | 18.29K | $1.43M |
| Van Den Born Simon | Tax withholding | 13.21K | $1.03M |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.62M
- Days to cover
- 3.50
- % of shares outstanding
- 3.63%
- Average daily volume
- 748.92K
- Change since last report
- +3.0%
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