Henderson Group - Key dates 2016

FY15 Preliminary Results

11 February

1Q16 Trading Statement

27 April

Henderson Group 2016 Annual General Meeting

28 April

Last day for processing requests by ordinary shareholders to convert ordinary shares into CDIs before the record date for the 2015 Final Dividend

28 April (London time)

Last day for processing requests by CDI holders to convert CDIs into ordinary shares before the record date for the 2015 Final Dividend

29 April(Sydney time)

CDIs begin trading on the ASX on an ex-dividend basis

4 May

Ordinary shares begin trading on the LSE on an ex-dividend basis

5 May

Record Date for the 2015 Final Dividend

6 May

Processing recommences for requests by CDI holders to convert CDIs into ordinary shares or by ordinary shareholders to convert ordinary shares into CDIs

9 May

Dividend payment date (subject to shareholder approval at the 2016 Annual General Meeting)

27 May

1H16 Interim Results

28 July

Last day for processing requests by ordinary shareholders to convert ordinary shares into CDIs before the record date for the 2016 Interim Dividend

18 August (London time)

Last day for processing requests by CDI holders to convert CDIs into ordinary shares before the record date for the 2016 Interim Dividend

19 August (Sydney time)

CDIs begin trading on the ASX on an ex-dividend basis

24 August

Ordinary shares begin trading on the LSE on an ex-dividend basis

25 August

Record Date for the 2016 Interim Dividend

26 August

Processing recommences for requests by CDI holders to convert CDIs into ordinary shares or by ordinary shareholders to convert ordinary shares into CDIs

29 August

Dividend payment date

16 September

3Q16 Trading Statement

27 October

Further information

www.henderson.com/IR

or

Investor enquiries

Miriam McKay

+44 (0) 20 7818 2106 or

Head of Investor Relations

+44 (0) 20 7818 5310

miriam.mckay@henderson.com or

investor.relations@henderson.com

Louise Curran

Investor Relations Manager

+44 (0) 20 7818 5927

louise.curran@henderson.com