MAREX GROUP PLC

Ticker: MRX CUSIP: G5S37H101 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 2,943 Value ($000) $116 Avg Close $41.19 Range $32.61 - $48.76

Q1 2025

Shares 1,343 Value ($000) $47 Avg Close $34.28 Range $29.91 - $39.41

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	2,943	$116	$41.19	$32.61 - $48.76
Q1 2025	1,343	$47	$34.28	$29.91 - $39.41