William B. Cassidy - 02 Sep 2025 Form 4 Insider Report for JANUS HENDERSON GROUP PLC (JHG)

Role: Chief Technology Officer
Signature: /s/ Lisa Kish, by Power of Attorney for William Cassidy
Issuer symbol: JHG
Transactions as of: 02 Sep 2025
Net transactions value: -$577,240
Form type: 4
Filing time: 04 Sep 2025, 16:54:50 UTC
Previous filing: 03 Mar 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
CASSIDY WILLIAM B	Chief Technology Officer	201 BISHOPGATE, LONDON, UNITED KINGDOM	/s/ Lisa Kish, by Power of Attorney for William Cassidy	04 Sep 2025	0002044423

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	JHG	Common Stock	Tax liability	$577,240	-13,182	-10%	$43.79	115,852	02 Sep 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units.
F2	Includes shares purchased under the Issuer's Employee Stock Purchase Plan.