MICHELLE ROSENBERG - 27 Feb 2026 Form 4 Insider Report for JANUS HENDERSON GROUP PLC (JHG)

Role: CAO & GENERAL COUNSEL
Signature: /s/ Lisa Kish, by Power of Attorney for Michelle Rosenberg
Issuer symbol: JHG
Transactions as of: 27 Feb 2026
Net transactions value: +$1,033,401
Form type: 4
Filing time: 03 Mar 2026, 19:33:30 UTC
Previous filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
ROSENBERG MICHELLE	CAO & GENERAL COUNSEL	201 BISHOPGATE, LONDON, UNITED KINGDOM	/s/ Lisa Kish, by Power of Attorney for Michelle Rosenberg	03 Mar 2026	0001898845

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	JHG	Common Stock	Award	$1,440,012	+29,388	+27%	$49.00	137,030	27 Feb 2026	Direct	F1
transaction	JHG	Common Stock	Tax liability	$406,611	-7,833	-5.7%	$51.91	129,197	02 Mar 2026	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Represents a grant of restricted stock units which vests in three equal annual installments beginning one year after the date of grant.
F2	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.