Simon Van Den Born plan to sell securities of Marex Group plc under Form 144

Simon Van Den Born filed Form 144 to notify SEC of plan to sell 26529 units of Marex Group plc securities around 2026-04-01, with aggregate market value of $1,142,073.45. The total outstanding units is 72933681.0. The amount planned to be sold represents 0.04% of total outstanding units; Recent transactions in past 3 months include: On 01/05/2026, sold 14000 units for $550800.60; On 03/02/2026, sold 14000 units for $615013.00; On 02/02/2026, sold 14000 units for $550569.60;