Janus Henderson : Director Shareholding

Appendix 3Y

Change of Director's Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director's Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX's property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity	JANUS HENDERSON GROUP PLC
ABN	67 133 992 766

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Richard M Weil
Date of last notice	30 November 2020

Part 1 - Change of director's relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of "notifiable interest of a director" should be disclosed in this part.

Direct or indirect interest	Indirect
Nature of indirect interest	Registered holder: Fidelity Investments
(including registered holder)	brokerage account, for the benefit of
Note: Provide details of the circumstances giving rise to the relevant	Richard M. Weil.
interest.
	Registered holder: Weil Living Trust, for the
	benefit of Richard M. Weil and Britney B
	Weil (connected person).
Date of change	31 December 2020
No. of securities held prior to change	894,712 ordinary shares in Fidelity brokerage
	account.
	31,797 ordinary shares held by the Weil Living
	Trust.
Class	Ordinary shares of US$1.50 each

• See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director's Interest Notice

Number acquired
	2016 RSA = 8,130
Number disposed	Nil
Value/Consideration	Shares acquired on vesting of share plans and
Note: If consideration is non-cash, provide details and estimated	at no cost to the Director.
valuation
No. of securities held after change	902,842 ordinary shares in Fidelity brokerage
	account.
	31,797 ordinary shares held by the Weil Living
	Trust.
Nature of change	On-market trade.
Example: on-market trade, off-market trade, exercise of options,
issue of securities under dividend reinvestment plan, participation in
buy-back

Part 2 - Change of director's interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of "notifiable interest of a director" should be disclosed in this part.

	Detail of contract	Janus Henderson Group plc Amended and Restated
		2010 Long-Term Incentive Plan
	Nature of interest	Restricted Stock Awards (RSA) vesting in four equal and
		consecutive annual instalments for awards granted prior
		to 2018, three equal and consecutive annual instalments
		for awards granted 2018 and after, with the first
		instalment vesting one year after the date of grant.
	Name of registered holder	Unvested RSAs are held directly by Richard M. Weil.
	(if issued securities)	Upon vesting, the shares are moved to a brokerage
		account at Fidelity Investments and held beneficially for
		Richard M. Weil.
	Date of change	31 December 2020
	No. and class of securities to	2016 RSA: 15,678 fully paid ordinary shares vesting on
	which interest related prior to	31 December 2020.
	change	2018 RSA: 4,571 fully paid ordinary shares vesting on 1
	Note: Details are only required for a contract in
	relation to which the interest has changed	March 2021 with a 6-month hold after each tranche vests.
+ See chapter 19 for defined terms.
Appendix 3Y Page 2	01/01/2011

		Appendix 3Y
		Change of Director's Interest Notice
	Interest acquired	Nil
	Interest disposed	7,548 fully paid ordinary shares in the 2016 RSA sold for
		tax.
	Value/Consideration	Shares were sold for taxes on 4 January 2021 at a price
	Note: If consideration is non-cash, provide details	of US$$31.998 per share.
	and an estimated valuation
	Interest after change	2018 RSA: 4,571 fully paid ordinary shares vesting on 1
		March 2021 with a 6-month hold after each tranche vests.

• See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 3