JANUS HENDERSON GROUP PLC

Ticker: JHG CUSIP: G4474Y214 Class: Common Stock

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

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

Q4 2025

Shares 1,200 Value ($000) $57 Avg Close $44.24 Range $40.65 - $49.42

Q1 2024

Shares 263 Value ($000) $9 Avg Close $30.57 Range $28.19 - $33.22

Q2 2017

Shares 6,370 Value ($000) $211 Avg Close $32.71 Range $30.24 - $34.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,200	$57	$44.24	$40.65 - $49.42
Q1 2024	263	$9	$30.57	$28.19 - $33.22
Q2 2017	6,370	$211	$32.71	$30.24 - $34.85