Marex Group plc Ordinary Shares (MRX) has 15 known insider and institutional holders on record. The largest holder is Lowitt Ian T with 2,907,979 shares. Other notable holders include Van Den Born Simon and Tonucci Paolo.
Over the last 12 months, insiders have made 13 transactions in MRX stock — 0 buys (valued at RSU Award) and 2 sells (valued at $412.99K). Insider selling has exceeded buying during this period.
MRX Insider Ownership
Top Holder
Lowitt Ian T
2,907,979 shares
Buys (12 mo)
0
$0.00 value
Sells (12 mo)
2
$412.99K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Lowitt Ian T |
Chief Executive Officer |
2,907,979 |
2026-03-18 |
|
| 2 |
Van Den Born Simon |
President |
1,522,229 |
2026-04-02 |
|
| 3 |
Tonucci Paolo |
See Remarks |
1,380,023 |
2026-03-18 |
|
| 4 |
Prygocki Mark A Sr |
President |
301,613 |
2012-12-13 |
|
| 5 |
Jethwa Nilesh |
CEO, Marex Solutions |
287,015 |
2026-03-18 |
|
| 6 |
Texier Thomas |
Group Head of Clearing |
242,658 |
2026-04-02 |
|
| 7 |
Peterson Richard D |
EVP, CFO & Corp Treasurer |
205,889 |
2012-12-13 |
|
| 8 |
Irvin Rob |
Chief Financial Officer |
38,104 |
2026-03-18 |
|
| 9 |
Pickering Robert Mark |
Director |
29,696 |
2026-03-18 |
|
| 10 |
Schweinitz Konstantin Graf Von |
Director |
24,095 |
2026-03-18 |
|
| 11 |
Pietrowicz John W. |
Director |
22,259 |
2026-03-18 |
|
| 12 |
Myers Linda Kristine |
Director |
22,259 |
2026-03-18 |
|
| 13 |
Pietrangelo Michael |
Director |
15,920 |
2012-12-13 |
|
| 14 |
Altschul Arthur G Jr |
Director |
7,743 |
2012-05-17 |
|
| 15 |
Ing Sarah |
Director |
535 |
2026-03-18 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Van Den Born Simon |
President |
Informative Sell |
4,554 |
$43.97 |
$200.24K |
| 2026-04-01 |
Texier Thomas |
Group Head of Clearing |
Informative Sell |
4,838 |
$43.97 |
$212.75K |
| 2026-03-18 |
Pickering Robert Mark |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Schweinitz Konstantin Graf Von |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Irvin Rob |
Chief Financial Officer |
Unknown |
- |
- |
- |
| 2026-03-18 |
Jethwa Nilesh |
CEO, Marex Solutions |
Unknown |
- |
- |
- |
| 2026-03-18 |
Ing Sarah |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Tonucci Paolo |
See Remarks |
Unknown |
- |
- |
- |
| 2026-03-18 |
Van Den Born Simon |
President |
Unknown |
- |
- |
- |
| 2026-03-18 |
Texier Thomas |
Group Head of Clearing |
Unknown |
- |
- |
- |
| 2026-03-18 |
Myers Linda Kristine |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Pietrowicz John W. |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Lowitt Ian T |
Chief Executive Officer |
Unknown |
- |
- |
- |
