Henderson Group - Dividend Rate

Dividend rate

28 August 2015

Henderson Group plc wishes to confirm that shareholders on the register at 5.00pm on 28 August 2015, the Record Date, will be entitled to an interim dividend in respect of the financial year ended 31 December 2015 of 3.10 pence per ordinary share.

For holders of CHESS Depositary Interests (CDIs), the A$ or the NZ$ equivalent will be 6.7246 cents* (Australia) and 7.4319 cents* (New Zealand) per CDI respectively.

The dividend will be paid on 18 September 2015.

The timetable is as follows:

Record Date for dividend Friday 28 August

Processing recommences for requests by CDI holdersto convert CDIs into ordinary shares or by ordinaryshareholders to convert ordinary shares into CDIs Monday 31 August

Dividend payment date Friday 18 September

\* The exchange rates that have been applied in translating the dividend amount are as follows: £1 = A$2.16924 and £1 = NZ$2.39738.

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About Henderson

Henderson is an independent global asset manager, specialising in active investment. Named after its first client and founded in 1934, Henderson is a client-focused global business with over 900 employees worldwide and assets under management of £82.1bn (30 June 2015). Its core areas of investment expertise are European equities, global equities, global fixed income, multi-asset and alternatives.

Henderson is dual-listed on the Australian Securities Exchange (ASX) and the London Stock Exchange (LSE) and has a market capitalisation of approximately £2.9bn (27 August 2015).

Further information can be found at www.henderson.com/IR.

Forward-looking statements and other important information

This announcement contains forward-looking statements with respect to the financial condition, results and business of Henderson Group plc. By their nature, forward-looking statements involve risk and uncertainty because they relate to events, and depend on circumstances, that will occur in the future. Henderson's actual future results may differ materially from the results expressed or implied in these forward-looking statements. Nothing in this announcement should be construed as a profit forecast.

The content of the websites referred to in this announcement is not incorporated into and does not form part of this announcement. Nothing in this announcement should be construed as, or is intended to be, a solicitation for or an offer to provide investment advisory services.