TIDMGRT 
 
NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, IN, INTO OR 
FROM CANADA OR JAPAN OR ANY JURISDICTION WHERE TO DO THE SAME WOULD CONSTITUTE 
A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION 
 
12 January 2011 
 
                RECOMMENDED ACQUISITION BY HENDERSON GROUP PLC 
                           OF GARTMORE GROUP LIMITED 
 
 
The boards of Henderson and Gartmore are pleased to announce that agreement has 
been reached on the terms of a recommended acquisition by Henderson of the 
entire issued share capital of Gartmore. 
 
Highlights 
 
  * The Acquisition reinforces Henderson's position as a diversified fund 
    management group with product strength in traditional long-only and 
    absolute return offerings. 
 
  * Combined Estimated AUM of GBP78.1bn as at 31 December 2010. 
 
  * Significant enhancement of Henderson's presence in UK retail asset 
    management. 
 
  * Gartmore's Estimated AUM of GBP16.5bn as at 31 December 2010 with associated 
    estimated run-rate net revenue of approximately GBP163m per annum, of which GBP 
    120m relates to run-rate net management fee revenue and GBP43m relates to 
    run-rate gross performance fee and transaction fee revenue. 
 
  * Henderson's Estimated AUM of GBP61.6bn as at 31 December 2010 with Underlying 
    Profit before tax for the year ended 31 December 2010 expected to be 
    between GBP97m and GBP102m (2009: GBP73.7m). 
 
  * Under the terms of the Acquisition, Gartmore Shareholders will receive 
    0.6667 of a New Henderson Share for each Gartmore Share. 
 
  * Based on the Closing Price of 138.2 pence per Henderson Share on 11 January 
    2011, being the last Business Day prior to this announcement, the 
    Acquisition values each Gartmore Share at 92.1 pence and values the issued 
    share capital of Gartmore at approximately GBP335.3m. 
 
  * In addition, the New Henderson Shares will rank for the Final Dividend. 
    Given the expected range of Henderson's Underlying Profit before tax for 
    the year ended 31 December 2010, the Henderson Board expects to recommend a 
    final dividend which is no less than the 2009 final dividend of 4.25 pence 
    per Henderson Share. Henderson will be announcing its final results for the 
    year ended 31 December 2010 on 23 February 2011. 
 
  * Gartmore Shareholders will hold approximately 22.5 per cent. of the 
    enlarged share capital of Henderson immediately following completion of the 
    Acquisition, giving them the opportunity to share in the development of the 
    enlarged business. 
 
  * The Gartmore Directors, who have been so advised by Goldman Sachs 
    International, consider the terms of the Acquisition to be fair and 
    reasonable and intend unanimously to recommend that Gartmore Shareholders 
    vote in favour of the Acquisition, as they have irrevocably undertaken to 
    do in respect of their own Gartmore Shares. 
 
  * Henderson has received irrevocable undertakings to support the Scheme, in 
    respect of a total of 218,252,401 Gartmore Shares representing, in 
    aggregate, approximately 60 per cent. of the issued share capital of 
    Gartmore including from Hellman & Friedman, Gartmore's largest shareholder. 
 
  * Henderson has secured commitments from the key Gartmore portfolio managers, 
    who collectively have responsibility as lead managers for 84 per cent. 
    (including sub-advised AUM) of Gartmore's Estimated AUM, that they will 
    remain with the Combined Group and that they will agree to be bound by the 
    Scheme. 
 
  * On completion of the Acquisition, Hellman & Friedman will hold 
    approximately 4.6 per cent. of the enlarged share capital of Henderson and 
    have agreed that their holding of New Henderson Shares will be subject to 
    orderly marketing arrangements until the earlier of (i) the first 
    anniversary of the Effective Date or (ii) when their holding represents 
    less than 3 per cent of Henderson's issued share capital. 
 
Benefits of the Acquisition 
 
  * The Acquisition offers compelling benefits as it: 
 
 
      + reinforces Henderson's existing investment capabilities with the 
        addition of many of Gartmore's highly respected and highly rated 
        portfolio managers; 
 
      + significantly enhances Henderson's presence in UK retail asset 
        management; 
 
      + increases the AUM in absolute return products to over $6bn; 
 
      + expands and strengthens the product range, investment capabilities and 
        distribution reach of the Combined Group; 
 
      + complements Henderson's and Gartmore's existing investment processes 
        and approach; 
 
      + is consistent with Henderson's higher margin growth strategy and adds 
        product strengths that encompass traditional long only and absolute 
        return offerings in both institutional and retail segments, in 
        particular, by combining Gartmore's absolute return franchise with the 
        existing Henderson absolute return range; 
 
      + will benefit from Henderson's previous experience on integrating New 
        Star; 
 
      + delivers certainty to Gartmore's Shareholders, clients and employees; 
        and 
 
      + provides significant economies of scale, enabling the Combined Group to 
        extract cost efficiencies through the reduction of operational overlap. 
 
Based on Gartmore's current estimated run-rate net revenue of GBP163m, under 
Henderson's ownership the acquired business would be brought over at an 
operating margin in excess of 60 per cent. 
 
After taking account of prudent AUM assumptions, this operating margin is not 
expected to be below 50 per cent. and on this basis, the Acquisition is 
expected to deliver significant enhancement in Underlying Earnings per 
Henderson Share and a return on investment (calculated on the basis of 
Underlying Earnings) in excess of Henderson's cost of capital from 2011, in 
each case before integration and deal costs. 
 
Statements regarding the benefits of the Acquisition or that the Acquisition 
will be earnings enhancing are not and do not constitute a profit forecast and 
should not be interpreted to mean that Henderson's Underlying Earnings per 
share following the Acquisition will necessarily match or be greater than the 
historical published earnings per share of Henderson or Gartmore. 
 
Financing, approvals and timetable 
 
  * The consideration for the Acquisition is to be satisfied by the issue of 
    New Henderson Shares. 
 
  * As at 31 December 2010, the Gartmore Group had estimated gross debt and net 
    debt of approximately GBP246.5m and GBP49.5m respectively. 
 
  * Based on 31 December 2010 estimates, the Combined Group would have adjusted 
    pro forma gross debt and net debt of GBP300.0m and GBP47.7m respectively at 
    completion. 
 
  * Pre-tax integration and deal costs in relation to the Acquisition are 
    expected to be approximately GBP70m and are expected to occur during 2011. 
    These costs will be funded from Henderson's existing resources. 
 
  * Henderson has entered into multicurrency term and revolving loan facilities 
    which may be utilised by Henderson to meet the Combined Group's debt 
    obligations and for general corporate and working capital purposes. 
 
  * The FSA has confirmed it is minded to grant an investment firm 
    consolidation waiver to Henderson should the Acquisition be completed. The 
    FSA has indicated that the period of the waiver will be five years from the 
    Effective Date, that is, until 2016, subject to Henderson meeting any 
    waiver conditions, which are expected to be standard in nature. 
 
  * The Acquisition is subject to a number of Conditions, including regulatory 
    approvals and Henderson and Gartmore Shareholder approvals. 
 
  * The Acquisition is expected to be implemented by means of a Cayman 
    Court-approved scheme of arrangement between Gartmore and its shareholders. 
 
  * The Acquisition is expected to complete within three months subject to the 
    Conditions being satisfied. 
 
Commenting on the Acquisition, Andrew Formica, Chief Executive of Henderson, 
said: 
 
"The acquisition of Gartmore is a great opportunity for Henderson. Gartmore is 
a natural fit with Henderson, with a highly complementary strategy and stable 
of products. Its recent travails should not overshadow the fact that Gartmore 
is one of the best known firms in UK fund management and its assets are 
performing well. By bringing across fund managers and integrating the business 
onto our own platform we will be able to enhance margins significantly. We will 
also improve our offering to both sets of clients by expanding our product 
range, for instance in absolute return. The combined business will be one of 
the largest UK retail fund managers. I am, therefore, confident that it will 
create significant value." 
 
Commenting on the Acquisition, Jeffrey Meyer, Chief Executive of Gartmore, 
said: 
 
"This transaction brings significant benefits to our shareholders and clients. 
We are becoming part of an enlarged group with much greater diversity and 
scale. We are benefiting from significant synergies which will enhance 
Henderson's operating margins, earnings per share and long term growth rate. 
And the vast majority of our investment teams are joining Henderson thus 
ensuring continuity of the investment process. We have been impressed with 
Andrew Formica and the Henderson team, their vision for the business and are 
very excited about the potential of the combined company." 
 
A market briefing will be held by Henderson today 12 January 2011 at 7.00pm 
Sydney time/ 8.00 am London time. 
 
Teleconference details 
 
We recommend participants start dialling in 5-10 minutes prior to the start of 
the presentation. 
 
From: 
 
United Kingdom        0500 1016 30 (free call) 
 
Australia             1800 9889 41 (free call) 
 
All other countries   +44 (0)20 7162 0025  (This is not a free call number) 
 
Conference title      Henderson Group Presentation - Market Briefing 
 
Chairperson           Andrew Formica 
 
Reference             884839 
 
Replay facility details: 
 
United Kingdom        +44 (0)20 7031 4064 
 
Australia             +61 (0)2 8223 9748 
 
Access code           884839 
 
Available for 7 days from 12 January 2011 until midnight on 19 January 2011. 
 
Webcast details 
 
You can log on to a live videocast of the briefing via the Henderson website. 
Go to www.henderson.com and click on the relevant link of the homepage. 
 
UBS Investment Bank is acting as lead financial adviser, sole corporate broker 
and sponsor to Henderson in relation to the Acquisition. Ondra Partners is 
acting as joint financial adviser to Henderson in relation to the Acquisition. 
 
Goldman Sachs International is acting as exclusive financial adviser to 
Gartmore in relation to the Acquisition. 
 
This summary should be read in conjunction with and is subject to the full text 
of the attached announcement (including the Appendices). The Acquisition will 
be subject to the Conditions and Further Terms set out in Appendix I to this 
announcement and the terms and conditions which will be set out in the Scheme 
Document, when issued. 
 
The sources and bases of information contained in this announcement are set out 
in Appendix II to this announcement and the definitions of certain expressions 
used in this announcement are set out in Appendix IV to this announcement. 
 
Enquiries 
 
For further information, contact: 
 
Henderson 
 
Mav Wynn (Head of Investor Relations) 
Tel: +44 (0)20 7818 5135 
Email: mav.wynn@henderson.com 
 
Media enquiries 
Richard Acworth (Head of Corporate Communications) 
 
Tel: +44 (0)20 7818 3010 
Email: richard.acworth@henderson.com 
 
Australia: Cannings                   United Kingdom: Maitland 
Luis Garcia                           George Trefgarne/Rebecca Mitchell 
+61 (0)2 8284 9911                    +44 (0)20 7379 5151 
 
Gartmore 
 
Jeffrey Meyer (Chief Executive Officer) 
Tel: +44 (0)20 7782 2045 
Email: jeffrey.meyer@gartmore.com 
 
Keith Starling (Chief Financial Officer) 
Tel: +44 (0)20 7782 2569 
Email: keith.starling@gartmore.com 
 
UBS Investment Bank 
Tel: +44 (0)20 7567 8000 
 
John Humphrey 
James Robertson 
Rahul Luthra 
 
Ondra Partners 
Tel: +44 (0)20 7082 8750 
 
Michael Tory 
Stewart Bennett 
Elena Ciallie 
 
Goldman Sachs International 
Tel: +44 (0)20 7774 1000 
 
Todd Leland 
John Brennan 
Michael Casey 
 
Brunswick Group 
 
Andrew Garfield 
Tel: +44 (0)20 7404 5959 
Email: agarfield@brunswickgroup.com 
 
Gill Ackers 
Tel: +44 (0)20 7404 5959 
Email: gackers@brunswickgroup.com 
 
This announcement is for information purposes only and does not constitute, or 
form part of, any offer for or invitation to sell or purchase any securities, 
or any solicitation of any offer for, securities in any jurisdiction. This 
announcement does not constitute a prospectus or a prospectus equivalent 
document. The Acquisition will be made solely pursuant to the Scheme Document 
(or, if the Acquisition is implemented by means of the Takeover Offer, the 
Offer Document) which will contain the full terms and conditions of the 
Acquisition, including details of how to vote in respect of the Acquisition. 
Any response in respect of the Acquisition should be based only on the 
information contained in the Scheme Document. Gartmore Shareholders should read 
carefully the Scheme Document in its entirety before making a decision with 
respect to the Acquisition. 
 
The release, publication or distribution of this announcement in jurisdictions 
other than the United Kingdom and Australia may be restricted by law and, 
therefore, any persons who are subject to the laws of any jurisdiction other 
than the United Kingdom or Australia should inform themselves about, and 
observe, any applicable requirements. Failure to comply with any such 
restrictions may constitute a violation of the securities laws of any such 
jurisdiction. This announcement has been prepared to comply with the 
requirements of English and Australian law, the Listing Rules, the rules of the 
London Stock Exchange and the ASX Listing Rules and information disclosed may 
not be the same as that which would have been disclosed if this announcement 
had been prepared in accordance with the laws of jurisdictions outside England 
or Australia. 
 
Notice to US holders of Gartmore Shares 
 
The Acquisition relates to the securities of a Cayman incorporated company, 
listed on an exchange in the UK and is subject to UK disclosure requirements, 
which are different from those of the United States. The financial information 
included in this announcement has been prepared in accordance with 
International Financial Reporting Standards and thus may not be comparable to 
financial information of US companies or companies whose financial statements 
are prepared in accordance with generally accepted accounting principles in the 
United States. 
 
It may be difficult for US holders of Gartmore Shares to enforce their rights 
and any claim arising out of the US federal securities laws, since Henderson 
and Gartmore are located in a non-US jurisdiction, and some or all of their 
officers and directors may be residents of a non-US jurisdiction. US holders of 
Gartmore Shares may not be able to sue a non-US company or its officers or 
directors in a non-US court for violations of the US securities laws. Further, 
it may be difficult to compel a non-US company and its affiliates to subject 
themselves to a US court's judgment. 
 
The Acquisition is proposed to be implemented by means of a scheme of 
arrangement provided for under the Cayman Companies Law. The scheme of 
arrangement will relate to the shares of a Cayman company that is a `foreign 
private issuer' as defined under Rule 3b.4 under the Exchange Act. A 
transaction effected by means of a scheme of arrangement is not subject to the 
proxy and tender offer rules under the Exchange Act. Accordingly, the 
Acquisition is subject to the disclosure requirements and practices applicable 
in the Cayman Islands to schemes of arrangement, which differ from the 
disclosure requirements of the US proxy and tender offer rules. 
 
The New Henderson Shares have not been, and will not be, registered under the 
Securities Act or under the securities laws of any state, district or other 
jurisdiction of the United States or of Canada or Japan and no regulatory 
clearances in respect of the registration of New Henderson Shares have been, or 
will be, applied for in any such jurisdiction. It is expected that the New 
Henderson Shares will be issued in reliance upon the exemption from the 
registration requirements of the Securities Act provided by section 3(a)(10) 
thereof. The Acquisition has not been and will not be approved or disapproved 
by the SEC, nor has the SEC or any US state securities commission passed upon 
the merits or fairness of the transaction nor upon the adequacy or accuracy of 
the information contained in this announcement. Any representation to the 
contrary is a criminal offence in the United States. Under applicable US 
securities laws, Gartmore Shareholders who are or will be `affiliates' of 
Henderson prior to or after the Effective Date will be subject to certain 
transfer restrictions relating to the New Henderson Shares received in 
connection with the Scheme. 
 
UBS Investment Bank is acting exclusively as lead financial adviser, sole 
corporate broker and sponsor to Henderson in relation to the Acquisition and 
no-one else and will not be responsible to anyone other than Henderson for 
providing the protections offered to clients of UBS Investment Bank nor for 
providing advice in relation to the Acquisition or the contents of this 
announcement. 
 
Ondra Partners is acting exclusively as joint financial adviser to Henderson in 
relation to the Acquisition and no-one else and will not be responsible to 
anyone other than Henderson for providing the protections offered to clients of 
Ondra Partners nor for providing advice in relation to the Acquisition or the 
contents of this announcement. 
 
Other than their responsibilities to Henderson, UBS Investment Bank and Ondra 
Partners do not accept any responsibility whatsoever for the contents of this 
announcement or for any statement made or purported to be made by either of 
them or on their behalf in connection with the Acquisition.  Each of UBS 
Investment Bank and Ondra Partners accordingly disclaims all and any other 
liability whether arising in tort, contract or otherwise which either of them 
might otherwise have in respect of this announcement or any such statement. 
 
Goldman Sachs International, which is authorised and regulated in the UK by the 
FSA, is acting exclusively for Gartmore and no one else in connection with the 
matters set out in this announcement and will not be responsible to anyone 
other than Gartmore for providing the protections afforded to clients of 
Goldman Sachs International nor for providing advice in relation to the matters 
set out in this announcement, the contents of this announcement, or any matter 
referred to herein. 
 
Forward-looking statements 
 
This announcement contains a number of forward-looking statements relating to 
the Henderson Group and the Gartmore Group with respect to, among other 
matters, the following: financial condition; results of operations; the 
respective businesses of the Henderson Group and the Gartmore Group; the 
economic conditions in which the Henderson Group and the Gartmore Group 
operate; benefits of the Acquisition and management plans and objectives. 
Henderson and Gartmore consider any statements that are not historical facts to 
be "forward-looking statements". Without limitation, any statements preceded or 
followed by or that include the words "targets", "plans", "believes", 
"expects", "aims", "intends", "will", "may", "anticipates", "estimates", 
"projects" or words or terms of similar substance or the negative thereof, 
identify forward looking statements. These forward-looking statements involve a 
number of risks and uncertainties that could cause actual results to differ 
materially from those suggested by them. Important factors that could cause 
actual results to differ materially from estimates or forecasts contained in 
the forward-looking statements include, among others, the following 
possibilities: future revenues are lower than expected; costs or difficulties 
relating to the combination of the businesses of the Henderson Group and the 
Gartmore Group, or of other future acquisitions, are greater than expected; 
expected cost savings from the transaction or from other future acquisitions 
are not fully realised or not realised within the expected time frame; 
competitive pressures in the industry increase; general economic conditions or 
conditions affecting the industry, whether internationally or in the places the 
Henderson Group and the Gartmore Group do business are less favourable than 
expected, and/or conditions in the securities market are less favourable than 
expected. 
 
Forward-looking statements only speak as of the date on which they are made, 
and the events discussed herein may not occur. Subject to compliance with 
applicable law and regulation, neither Henderson nor Gartmore undertakes any 
obligation to update publicly or revise forward-looking statements, whether as 
a result of new information, future events or otherwise. 
 
The estimated operational cost savings and financial synergies have been 
calculated on the basis of the existing cost and operating structures of the 
Henderson Group and the Gartmore Group and by reference to current prices and 
the current regulatory environment. These statements of estimated cost savings 
and one-off costs relate to future actions and circumstances which, by their 
nature, involve risks, uncertainties and other factors. Because of this, the 
cost savings and financial synergies referred to may not be achieved, or those 
achieved could be materially different from those estimated. 
 
Any statements in this announcement regarding the benefits of the Acquisition 
or that the Acquisition will be earnings enhancing are not and do not 
constitute a profit forecast for any period, nor should any statements be 
interpreted to mean that earnings or earnings per share will necessarily be 
greater or lesser than the historical published earnings per share of Henderson 
or Gartmore as appropriate. 
 
Application of the City Code and Dealing Disclosure Requirements 
 
As previously advised, by virtue of its status as a Cayman incorporated 
company, the City Code does not apply to Gartmore. 
 
Shareholders are reminded that whilst the Gartmore Articles reflect certain 
provisions of the City Code, as set out more fully below, the Panel does not 
have responsibility for ensuring compliance with the City Code and is not able 
to answer shareholders queries in relation to Gartmore or Henderson. 
 
In particular, public disclosures consistent with the provision of Rule 8.3 of 
the City Code should not be e-mailed to the Panel, but released directly 
through a Regulatory Information Service. 
 
Gartmore has incorporated certain provisions in the Gartmore Articles to 
reflect certain provisions of the City Code. The provisions do not, however, 
provide shareholders with the full protections offered by the City Code. In 
particular, the Gartmore Articles provide that subject to the Cayman Companies 
Law, to any other applicable law, to any other regulation in respect of 
takeovers which applies to Gartmore at any time, and to the Gartmore Board 
being satisfied, in any particular case, that the application of the following 
provisions are in the best interests of Gartmore, the Gartmore Board will use 
its reasonable endeavours to (i) apply and have Gartmore abide by the General 
Principles of the City Code; (ii) if circumstances arise under which Gartmore 
would be an offeree or otherwise the subject of an approach or the subject of a 
third party's statement of a firm intention to make an offer to comply with, 
and procure that Gartmore complies with, the provisions of the City Code 
applicable to an offeree company and the board of directors of an offeree 
company; and (iii) if the Gartmore Board recommends an offer, obtain an 
undertaking from the offeror to comply with the City Code in relation to the 
conduct and execution of that offer as though Gartmore were subject to the City 
Code (but recognising that the Panel will not have jurisdiction). As explained 
in more detail in paragraph 12 below, Gartmore and Henderson have agreed 
generally, subject to certain exceptions set out in the Implementation 
Agreement, to comply with the general principles and rules of the City Code in 
the conduct and execution of the Acquisition, as if the City Code applied to 
the Acquisition. 
 
Gartmore and Henderson Shareholders and others dealing in ordinary shares of 
Gartmore or Henderson are not obliged to disclose any of their dealings under 
the provisions of the City Code. However, market participants are requested to 
make disclosures of dealings as if the City Code applied and as if Gartmore 
were in an offer period under the City Code. Gartmore's and Henderson's 
websites contain the form of disclosure requested. If you are in any doubt as 
to whether or not you should disclose dealings, you should consult Gartmore or 
Henderson, as relevant. 
 
In light of the foregoing, under the provisions of Rule 8.3 of the City Code, 
if any person is, or becomes "interested" (directly or indirectly) in 1% or 
more of any class of "relevant securities" of Gartmore or Henderson, all 
"dealings" in any "relevant securities" of Gartmore or Henderson, as the case 
may be, (including by means of an option in respect of, or a derivative 
referenced to, any such "relevant securities") should be publicly disclosed by 
no later than 3.30pm (London time) on the London business day following the 
date of the relevant transaction. In a situation where the City Code applies, 
this requirement would continue until the date on which the Scheme becomes 
effective or is otherwise withdrawn or on which the "offer period" otherwise 
ends. If two or more persons act together pursuant to an agreement or 
understanding, whether formal or informal, to acquire an "interest" in 
"relevant securities" of Gartmore or Henderson, they would be deemed to be a 
single person for the purpose of Rule 8.3 of the City Code. 
 
In accordance with the provisions of Rule 8.1 of the City Code, all "dealings" 
in "relevant securities" of Gartmore or Henderson by Gartmore or Henderson or 
by any of their respective "associates", would be disclosed by no later than 
12.00 noon (London time) on the London business day following the date of the 
relevant transaction. "Interests in securities" arise, in summary, when a 
person has long economic exposure, whether conditional or absolute, to changes 
in the price of securities. In particular, a person will be treated as having 
an "interest" by virtue of the ownership or control of securities, or by virtue 
of any option in respect of, or derivative referenced to, securities. 
 
Terms in quotation marks are defined in the City Code, which can be found on 
the Panel's website. If you are in any doubt as to whether or not you should 
disclose a "dealing" under Rule 8 of the City Code, as if it applied, you 
should consult Gartmore or Henderson. 
 
Publication on websites 
 
A copy of this announcement will be available on Henderson's website 
(www.henderson.com) and on Gartmore's website (www.gartmore.com) by no later 
than 12 noon (London time) on 13 January 2011. 
 
NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, IN, INTO OR 
FROM CANADA OR JAPAN OR ANY JURISDICTION WHERE TO DO THE SAME WOULD CONSTITUTE 
A VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION 
 
12 January 2011 
 
                RECOMMENDED ACQUISITION BY HENDERSON GROUP PLC 
                           OF GARTMORE GROUP LIMITED 
 
 1. Introduction 
 
The Boards of Henderson and Gartmore are pleased to announce that agreement has 
been reached on the terms of a recommended acquisition by Henderson of the 
entire issued share capital of Gartmore in consideration for the issue of New 
Henderson Shares to Gartmore Shareholders. 
 
The Acquisition further strengthens Henderson's presence in the UK funds 
management industry combining Henderson's Estimated AUM of GBP61.6bn with 
Gartmore's Estimated AUM of GBP16.5bn (in each case as at 31 December 2010) to 
form a business with combined Estimated AUM as at that date of GBP78.1bn, 
diversified across asset classes, geographies, client types, products and 
investment capabilities. 
 
The Acquisition is expected to be implemented by means of a scheme of 
arrangement between Gartmore and its shareholders under section 86 of the 
Cayman Companies Law. 
 
The sources and bases of information contained in this announcement are set out 
in Appendix II to this announcement and the definitions of certain expressions 
used in this announcement are set out in Appendix IV to this announcement. 
 
 2. Terms of the Acquisition 
 
Under the terms of the Acquisition, which will be subject to the Conditions and 
further terms set out in Appendix I to this announcement and the full terms and 
conditions that will be set out in the Scheme Document, Gartmore Shareholders 
will be entitled to receive New Henderson Shares on the following basis: 
 
for each Gartmore Share 0.6667 of a New Henderson Share 
 
In addition, the New Henderson Shares will rank for the Final Dividend if they 
are in issue on the payment date in respect of such dividend. Given the 
expected range of Henderson's Underlying Profit before tax for the year ended 
31 December 2010, the Henderson Board expects to recommend a final dividend of 
no less than the 2009 final dividend of 4.25 pence per Henderson Share. It will 
be announcing its final results for the year ended 31 December 2010 on 23 
February 2011. Henderson has agreed that if the Final Dividend is paid before 
the Effective Date, it will compensate Gartmore Shareholders by making an 
additional cash payment of an amount equivalent to the Final Dividend for each 
New Henderson Share issued to Gartmore Shareholders. 
 
Based on the Closing Price of 138.2 pence per Henderson Share on 11 January 
2011, being the last Business Day prior to this announcement, the Acquisition 
values each Gartmore Share at 92.1 pence and values the issued share capital of 
Gartmore at approximately GBP335.3m. 
 
Assuming a maximum of 242,639,403 New Henderson Shares are issued as 
consideration for the Acquisition, Gartmore Shareholders will hold 
approximately 22.5 per cent. of the enlarged share capital of Henderson 
immediately following completion of the Acquisition, giving them the 
opportunity to share in the development of the Combined Group. 
 
 3. Irrevocable undertakings to vote in favour of the Acquisition 
 
Henderson has received irrevocable undertakings to support the Scheme in 
respect of a total of 218,252,401 Gartmore Shares representing, in aggregate, 
approximately 60 per cent. of the issued share capital of Gartmore. 
 
Details of these undertakings are set out in Appendix III to this announcement. 
 
On completion of the Acquisition, Hellman & Friedman will hold approximately 
4.6 per cent. of the enlarged share capital of Henderson and have agreed that 
their holding of New Henderson Shares will be subject to orderly marketing 
arrangements until the earlier of (i) the first anniversary of the Effective 
Date or (ii) when their holding represents less than 3 per cent. of Henderson's 
issued share capital. 
 
 4. Background to and reasons for the Acquisition 
 
Gartmore is an established traditional equity and alternative asset management 
firm, with Estimated AUM of GBP16.5bn as at 31 December 2010, whose mutual funds, 
alternative funds and segregated mandates are distributed to clients in the 
United Kingdom, Continental Europe, North America, Japan and South America. A 
key element of Gartmore's strategy has been to build scale in retail and 
absolute return strategies which typically have higher margins. This is 
consistent with Henderson's higher margin growth strategy, which was reinforced 
by its acquisition of New Star in 2009. The combination of Gartmore's products, 
especially in the UK and European retail and absolute return fund ranges, with 
Henderson's own products will represent a significant acceleration of 
Henderson's own ambitions in these markets. Gartmore has a number of top-rated 
products and investment managers that are complementary or additive to 
Henderson's existing capabilities and offering. The Combined Group will also be 
diversified across asset classes, geographies, client types, products and 
investment capabilities. 
 
The Henderson Board believes that under Henderson's ownership clients will 
again begin to recognise the strength and quality of the portfolio of funds and 
mandates as the uncertainty resulting from recent events at Gartmore is removed 
as a result of the Acquisition. 
 
The Henderson Directors believe that the Acquisition offers compelling benefits 
as it: 
 
  * reinforces Henderson's existing investment capabilities with the addition 
    of many of Gartmore's highly respected and highly rated portfolio managers; 
 
  * significantly enhances Henderson's presence in UK retail asset management; 
 
  * increases the AUM in absolute return products to over $6bn; 
 
  * expands and strengthens the product range, investment capabilities and 
    distribution reach of the Combined Group; 
 
  * complements Henderson's and Gartmore's existing investment processes and 
    approach; 
 
  * is consistent with Henderson's higher margin growth strategy and adds 
    product strengths that encompass traditional long only and absolute return 
    offerings in both institutional and retail segments, in particular, by 
    combining Gartmore's absolute return franchise with the existing Henderson 
    absolute return range; 
 
  * will benefit from Henderson's previous experience on integrating New Star; 
 
  * delivers certainty to Gartmore's shareholders, clients and employees; and 
 
  * provides significant economies of scale, enabling the Combined Group to 
    extract cost efficiencies through the reduction of operational overlap. 
 
Based on Gartmore's current estimated run-rate net revenue of GBP163m, under 
Henderson's ownership the acquired business would be brought over at an 
operating margin in excess of 60 per cent. 
 
After taking account of prudent AUM assumptions this operating margin is not 
expected to be below 50 per cent. and on this basis, the Acquisition is 
expected to deliver significant enhancement in Underlying Earnings per 
Henderson Share and a return on investment (calculated on the basis of 
Underlying Earnings) in excess of Henderson's cost of capital from 2011, in 
each case before integration and deal costs. 
 
Statements regarding the benefits of the Acquisition or that the Acquisition 
will be earnings enhancing are not and do not constitute a profit forecast and 
should not be interpreted to mean that Henderson's Underlying Earnings per 
share following the Acquisition will necessarily match or be greater than the 
historical published earnings per share of Henderson or Gartmore. 
 
 5. Integration of Gartmore 
 
Henderson intends to migrate Gartmore's business onto its own operating 
platforms. Henderson expects that the total pre-tax integration and deal costs 
will be approximately GBP70m. These costs are expected to occur during 2011 and 
will be funded from Henderson's existing resources. 
 
 6. Background to and reasons for the Recommendation from the Gartmore Board 
 
On 8 November 2010, Gartmore released its Q3 2010 Interim Management Statement 
and announced a strategic review and business reorganisation. As part of its 
strategic review, it appointed Goldman Sachs International to carry out an 
assessment and evaluation of the strategic options available to it. Gartmore 
also announced the retirement of Roger Guy and stated its intentions to conduct 
a firm-wide cost saving programme as well as to grant equity awards in order to 
retain and incentivise key employees. 
 
 
In evaluating the strategic options available to the Gartmore Group, the 
Gartmore Board's primary assessment criteria were to: 
 
  * ensure value maximisation for Gartmore Shareholders; 
 
  * optimise speed and certainty of execution; and 
 
  * regain Gartmore's business momentum and overall potential in light of 
    recent developments in its business. 
 
The Gartmore Board also considered a number of factors, including: 
 
  * Gartmore's overall size and relative position in the key markets in which 
    it competes, namely its mutual fund and absolute return product offerings; 
 
  * an assessment of the challenge and amount of time it would take for 
    Gartmore to regain positive momentum in fund flows; 
 
  * Gartmore's strategic priorities of growing its mutual fund and absolute 
    return businesses and continuing to diversify the overall franchise; and 
 
  * Gartmore's recent share price performance and relative valuation. 
 
On that basis, Gartmore entered into confidential discussions with a broad 
range of interested parties and received a number of indications of interest 
for acquiring or merging with Gartmore. The Gartmore Board evaluated the 
various proposals received based on the criteria described above with a primary 
focus on the value deliverable to Gartmore Shareholders as well as the relative 
speed and certainty of execution. In considering these factors, the Gartmore 
Board's commercial assessment determined that Henderson's proposal presented 
the most attractive option for Gartmore going forward. The Gartmore Board 
believes that its business represents a strong fit with that of Henderson, 
having a similar cultural philosophy, complementary strategic direction and the 
opportunity to create value through synergies. 
 
The Gartmore Board believes that the Acquisition will result in value creation 
for Gartmore's Shareholders. Under the terms of the Acquisition, Gartmore 
Shareholders will receive 0.6667 of a New Henderson Share for each Gartmore 
Share. The New Henderson Shares will rank for the Final Dividend if they are in 
issue on the payment date in respect of such dividend.? If the Final Dividend 
is paid before the Effective Date, Gartmore Shareholders will instead receive a 
cash payment of an amount equivalent to the Final Dividend for each New 
Henderson Share issued to Gartmore Shareholders. Immediately following 
completion of the Acquisition, Gartmore Shareholders will hold 22.5% of the 
enlarged share capital of Henderson, offering them the opportunity to share in 
the value creation and strategic benefits of the enlarged business. 
 
The Gartmore Board, which has been so advised by Goldman Sachs International, 
considers the terms of the Acquisition to be fair and reasonable. In providing 
advice to the Gartmore Board, Goldman Sachs International has taken into 
account the commercial assessments of the Gartmore Board. Accordingly, the 
Gartmore Board intends unanimously to recommend that Gartmore Shareholders vote 
in favour of the Acquisition as they have irrevocably undertaken to do in 
respect of their own Gartmore Shares (representing approximately 2.9 per cent. 
of the issued share capital of Gartmore). 
 
 7. Management and employees 
 
Henderson attaches great importance to the skills and experience of the 
management and employees of Gartmore. 
 
Henderson will work with Gartmore during the period up to the Effective Date to 
ensure retention of key employees and has already secured commitments from the 
key Gartmore portfolio managers that they will remain with the Combined Group. 
These portfolio managers collectively have lead responsibility for 84 per cent. 
(including sub-advised AUM) of Gartmore's Estimated AUM. 
 
The Gartmore Board has given due regard to the impact of the Acquisition on 
Gartmore Group's employees. As part of this, the Gartmore Board has had 
detailed discussions with Henderson which have included assurances that 
Gartmore Group employees who are made redundant will be appropriately 
compensated. Henderson has confirmed that Gartmore Group employees who are 
retained will be employed on the Henderson Group terms and conditions which are 
similar to, but not identical to, the Gartmore Group terms and conditions. 
 
 8. Information on Henderson 
 
Henderson is the ultimate holding company of the investment management group 
Henderson Global Investors. The Henderson Group's principal place of business 
is in London and since December 2003 Henderson has been listed on the London 
Stock Exchange and Australian Securities Exchange, appearing in the FTSE 250 
and ASX 200 indices. Henderson has approximately 116,000 shareholders 
worldwide. Since 31 October 2008, Henderson has been incorporated in Jersey and 
tax-resident in the Republic of Ireland. 
 
The Henderson Group provides its institutional, retail and high net-worth 
clients access to skilled investment professionals covering a broad range of 
asset classes, including equities, fixed income, property and private equity. 
The Henderson Group is one of Europe's largest investment managers, with 
Estimated AUM of GBP61.6bn as at 31 December 2010 and employs around 955 people 
worldwide. 
 
The Henderson Group had net assets of GBP296.7m as at 30 September 2010. 
 
 9. Information on Gartmore 
 
Gartmore is an established traditional equity and alternative asset management 
firm, whose mutual funds, alternative funds and segregated mandates are 
distributed to clients in the United Kingdom, Continental Europe, North 
America, Japan and South America. Headquartered in London and incorporated in 
the Cayman Islands, Gartmore is listed on the London Stock Exchange (since 16 
December 2009) with offices in Tokyo, Boston, Madrid and Frankfurt. 
 
Over the last ten years, Gartmore has built a significant alternative asset 
management business, in terms of AUM. This is in addition to its longstanding 
long-only equities business, making Gartmore one of the few asset management 
firms with significant expertise in both key market segments. 
 
Gartmore earned profits before tax of GBP46.2m in the twelve months ended 31 
December 2009 and GBP25.8m for the six months ended 30 June 2010. 
 
10. Current trading and prospects 
 
Henderson 
 
In compliance with ASX requirements, Henderson announces that it expects its 
Underlying Profit before tax for the year ended 31 December 2010 to be between 
GBP97m and GBP102m (FY09: GBP73.7m). The Underlying Profit before tax for the year 
ended 2010 is expected to include revenue from gross performance and 
transaction fees of approximately GBP80m (FY09: GBP56.5m). Estimated AUM as at 
31 December 2010 is GBP61.6bn with GBP36.6bn in the higher margin products and GBP 
25.0bn in the lower margin products of which GBP7.2bn relates to Pearl. During 
the fourth quarter of 2010, Henderson experienced net flows of GBP0.9bn into 
higher margin products (including net flows of GBP0.1bn into its UK Wholesale and 
GBP0.2bn into Horizon funds) and outflows of GBP0.9bn from its lower margin 
products, predominantly cash funds (GBP0.8bn) and NSIM (GBP0.3bn). 
 
Given the expected range of Henderson's Underlying Profit before tax for the 
year ended 31 December 2010, the Henderson Board expects to recommend a final 
dividend which is no less than the 2009 final dividend of 4.25 pence per 
Henderson Share. It will be announcing its final results for the year ended 31 
December 2010 on 23 February 2011. 
 
Gartmore 
 
Gartmore's estimated AUM as at 31 December 2010 is GBP17.2bn split amongst its 
three product classes as follows: 
 
  * mutual funds: GBP11.1bn invested in 50 mutual funds for approximately 174,000 
    investor accounts; 
 
  * alternative funds: GBP2.1bn invested through 15 different hedge fund 
    strategies and related managed accounts and in house fund of funds for 
    approximately 289 direct investors; and 
 
  * segregated mandates: GBP4.0bn invested through separate mandates for over 36 
    clients. 
 
Of Gartmore's GBP17.2bn of estimated AUM as at 31 December 2010, approximately 88 
per cent. was invested in listed equities, with approximately 12 per cent. 
invested in other assets, including fixed income, private equity and managed 
futures funds. 
 
Gartmore had, as at 7 January 2011, received notifications of redemptions 
totalling approximately GBP0.7bn of this GBP17.2bn of estimated AUM, comprising GBP 
0.5bn from alternative funds (including GBP0.2 billion for the January 1 2011 
dealing day), GBP0.1bn from mutual funds and GBP0.1bn from segregated mandates. 
Therefore, Gartmore's Estimated AUM (i.e. taking into account all notified 
redemptions as at 7 January 2011) as at 31 December 2010 was GBP16.5bn. 
 
Outflows in the fourth quarter were GBP4.8bn, GBP1.3bn in alternative funds, GBP1.3bn 
in mutual funds and GBP2.2bn in segregated mandates of which GBP3.1bn related to 
the AUM in the European Large Cap team formerly run by Roger Guy. 
 
The cost saving programme highlighted in the market announcement of 8 November 
2010 has been substantially completed yielding GBP10.0m of annual cost 
reductions. 
 
At 31 December 2010, 60 per cent., 72 per cent. and 74 per cent. of Gartmore's 
mutual fund Estimated AUM were invested in funds that have achieved first or 
second quartile performance over the last one, three and five years, 
respectively. 
 
Estimated net debt of the Gartmore Group at 31 December 2010 was GBP49.5m 
comprising gross debt of GBP246.5m and cash of GBP197.0m. Seed investments at 31 
December 2010 were GBP9.1m. 
 
11. Henderson Dividend 
 
As noted above, given the expected range of Henderson's Underlying Profit 
before tax for the year ended 31 December 2010, the Henderson Board expects to 
recommend a final dividend which is no less than the 2009 final dividend of 
4.25 pence per Henderson Share. It will be announcing its final results for the 
year ended 31 December 2010 on 23 February 2011. 
 
Henderson has no formal dividend policy. Henderson employs a dividend formula 
where the interim dividend equates to 30 per cent. of the total dividend of the 
previous year, assuming the Henderson Group has sufficient resources to fund 
the dividend. 
 
12. Implementation Agreement 
 
Henderson and Gartmore have entered into the Implementation Agreement which 
governs their relationship until the Acquisition becomes effective or lapses 
and which provides, inter alia, for the implementation of the Scheme. The 
Implementation Agreement contains certain assurances and confirmations between 
the parties, including provisions to implement the Scheme on a timely basis and 
governing the conduct of the business of Gartmore pending completion of the 
Acquisition. 
 
Under the Implementation Agreement, Gartmore has undertaken not to, and to 
procure that no member of the Gartmore Group or any of its or their directors, 
officers, employees or agents shall, (directly or indirectly) solicit any 
Competing Proposal, nor negotiate with anyone in respect of a Competing 
Proposal. 
 
Further, under the Implementation Agreement Gartmore has agreed to pay 
Henderson a break fee of GBP3.4m if: 
 
 a. the Gartmore Directors (or any committee thereof) either: 
 
 i. fail unanimously and without qualification to recommend the Acquisition; or 
 
ii. withdraw, qualify or adversely modify or qualify their unanimous and 
    unqualified recommendation of (or their intention so to recommend) the 
    Acquisition. 
 
and in either case there is a change of control as a result of a Competing 
Proposal becoming effective, becoming or being declared unconditional in all 
respects or being otherwise completed; or 
 
 b. there is a change of control as a result of a Competing Proposal becoming 
    effective, becoming or being declared unconditional in all respects or 
    being otherwise completed; or 
 
 c. at any time after the Scheme is approved but before the Court Order is 
    granted, the Gartmore Directors do not proceed with the Scheme and there is 
    a change of control as a result of a Competing Proposal becoming effective, 
    becoming or being declared unconditional in all respects or being otherwise 
    completed. 
 
Gartmore and Henderson have agreed generally, subject to certain exceptions set 
out in the Implementation Agreement, to comply with the general principles and 
rules of the City Code in the conduct and execution of the Acquisition, as if 
the City Code applied to the Acquisition. 
 
The Implementation Agreement terminates in certain circumstances, including if 
the Court Order sanctioning the Scheme is not granted, or any resolutions 
required to approve and implement the Scheme are not passed by Gartmore 
Shareholders or Henderson Shareholders. 
 
Further information regarding the Implementation Agreement will be set out in 
the Scheme Document. 
 
13. Effect of the Scheme on Gartmore Omnibus Incentive Plan 
 
Henderson intends to make appropriate proposals to participants in the Gartmore 
Omnibus Incentive Plan. Participants will be informed of the proposals in due 
course. 
 
14. Structure of the Acquisition 
 
The Acquisition is expected to be implemented by means of a scheme of 
arrangement between Gartmore and its shareholders under section 86 of the 
Cayman Companies Law. The procedure involves an application by Gartmore to the 
Court to sanction the proposed Scheme and to effect the transfer of the 
Gartmore Shares to Henderson. In consideration for the transfer of Gartmore 
Shares to Henderson, Gartmore Shareholders will receive New Henderson Shares on 
the basis set out above. 
 
Before the Court Order can be sought, the proposed Scheme will require approval 
by Gartmore Shareholders at the Court Meeting. The Court Meeting will be 
convened by order of the Court pursuant to section 86 of the Cayman Companies 
Law for the purposes of considering and, if thought fit, approving the Scheme 
(with or without modification). The Scheme will be approved at the Court 
Meeting if a majority in number representing not less than 75 per cent. in 
value of Gartmore Shareholders present and voting, either in person or by proxy 
at the Court Meeting, vote in favour of the Scheme. 
 
The Scheme Document will be made available to Gartmore Shareholders in due 
course. The Scheme Document will include full details of the Scheme, together 
with notices of the Court Meeting, the expected timetable, and further 
information relating to Henderson Shares and will specify the necessary action 
to be taken by Gartmore Shareholders. 
 
As a result of the size of the transaction, the Acquisition requires the 
approval of Henderson Shareholders at the Henderson General Meeting. Henderson 
Shareholders will also be asked to consider and, if thought fit, pass a 
resolution to increase the authorised share capital of Henderson and to 
authorise the allotment of the New Henderson Shares. Henderson is required to 
prepare and send to Henderson Shareholders the Henderson Shareholder Circular 
summarising the background to, and reasons for, the Acquisition (which will 
include a notice convening the Henderson General Meeting). 
 
Henderson will be required to publish a prospectus in connection with the issue 
of the New Henderson Shares. The prospectus will contain information relating 
to, amongst other things, the Combined Group and the New Henderson Shares. 
 
Once the necessary approvals from the Gartmore Shareholders and Henderson 
Shareholders have been obtained and the other Conditions have been satisfied or 
(where applicable) waived, the sanction hearing will be convened at which the 
Court will consider whether to sanction the Scheme and grant the Court Order. 
 
Upon the Scheme becoming effective, it will be binding on all Gartmore 
Shareholders, irrespective of whether they attended or voted at the Court 
Meeting. 
 
The Acquisition will be subject to the conditions and terms set out or referred 
to in Appendix I to this announcement and in the Scheme Document. It is 
expected that, subject to the satisfaction or, where relevant, waiver of the 
Conditions, the Acquisition is expected to complete within three months. 
 
15. Financing arrangements and regulatory capital 
 
The consideration for the Acquisition is to be satisfied by the issue of New 
Henderson Shares. As at 31 December 2010, the Gartmore Group had estimated 
gross debt and net debt of approximately GBP246.5m and GBP49.5m respectively. As at 
31 December 2010, Henderson had estimated gross debt and net cash of 
approximately GBP175m and GBP1.8m respectively. Based on these estimates, the 
Combined Group would have adjusted pro forma gross debt and net debt of GBP300.0m 
and GBP47.7m respectively at completion. Henderson expects pre-tax integration 
and deal costs in relation to the Acquisition to be approximately GBP70m. These 
costs are expected to occur during 2011 and will be funded from Henderson's 
existing resources. 
 
Henderson has entered into multicurrency term and revolving loan facilities 
with HSBC Bank plc, The Royal Bank of Scotland plc and UBS AG, London Branch 
which may be utilised by Henderson to meet the Combined Group's debt 
obligations and for general corporate and working capital purposes. 
 
Henderson anticipates that, following completion of the Acquisition, leverage 
of the Combined Group would be within acceptable limits and consistent with 
maintaining the financial strength of the Combined Group. 
 
The FSA has confirmed it is minded to grant an investment firm consolidation 
waiver to Henderson should the Acquisition be completed. The FSA has indicated 
that the period of the waiver will be five years from the expected Effective 
Date, that is, until 2016, subject to Henderson meeting any waiver conditions, 
which are expected to be standard in nature. 
 
16. Delisting of Gartmore Shares 
 
The London Stock Exchange and the UK Listing Authority will be requested 
respectively to cancel trading in Gartmore Shares and Gartmore Depositary 
Interests on the London Stock Exchange's market for listed securities and the 
listing of the Gartmore Shares from the Official List. The last day of dealings 
in Gartmore Shares and Gartmore Depositary Interests on the London Stock 
Exchange is expected to be the Business Day immediately prior to the Effective 
Date and no transfers will be registered after 6:00 p.m. on that date. 
 
17. Regulatory clearances 
 
The Acquisition is conditional upon obtaining regulatory clearances from, and 
the grant of a waiver by, the FSA as well as obtaining clearances from 
regulatory bodies in other jurisdictions. 
 
18. Disclosure of interests in relevant Henderson and Gartmore securities 
 
In connection with the Acquisition and on the date of this 
announcement, Henderson will make a public opening position disclosure setting 
out details of its and the Henderson Directors' interests or short positions 
in, or rights to subscribe for, any relevant securities of Gartmore and 
Henderson. 
 
Henderson's opening position disclosure will not include details of all 
interests or short positions in or rights to subscribe for, any relevant 
securities of Gartmore or Henderson held by all other persons acting in concert 
with Henderson. Henderson will make a further Opening Position Statement as 
soon as possible disclosing these details. 
 
In connection with the Acquisition and on the date of this 
announcement, Gartmore will make a public Opening Position Disclosure setting 
out details of its interests or short positions in, or rights to subscribe for, 
any relevant securities of Gartmore and Henderson. 
 
Gartmore's Opening Position Disclosure will not include details of all 
interests or short positions in or rights to subscribe for, any relevant 
securities of Gartmore or Henderson held by all persons acting in concert 
with Gartmore. Gartmore will make a further Opening Position Statement as soon 
as possible disclosing these details. 
 
19. General 
 
The Acquisition will comply with the applicable rules and regulations of the UK 
Listing Authority, the London Stock Exchange and the ASX. The Scheme will be 
governed by, and construed in accordance with, the laws of the Cayman Islands 
and will be subject to the exclusive jurisdiction of the courts of the Cayman 
Islands and to the Conditions and further terms set out in Appendix I, and the 
full terms and conditions to be set out in the Scheme Document. 
 
It is currently intended that the Acquisition will be implemented by means of a 
court sanctioned scheme of arrangement pursuant to section 86 of the Cayman 
Companies Law, although Henderson reserves the right, at its sole discretion, 
to seek to implement the Acquisition by way of a Takeover Offer. 
 
20. Recommendation 
 
The Gartmore Directors, who have been so advised by Goldman Sachs 
International, consider the terms of the Acquisition to be fair and reasonable. 
In providing advice to the Gartmore Directors, Goldman Sachs International has 
taken into account the commercial assessments of the Gartmore Directors. 
Accordingly, the Gartmore Directors intend unanimously to recommend that 
Gartmore Shareholders vote in favour of all resolutions necessary to implement 
the Scheme, as they have irrevocably undertaken so to do in respect of their 
own Gartmore Shares (representing approximately 2.9 per cent. of the issued 
share capital of Gartmore). 
 
The Henderson Directors, who have been so advised by UBS Investment Bank and 
Ondra Partners, consider the terms of the Acquisition to be fair and 
reasonable. In providing advice to the Henderson Directors, UBS Investment Bank 
and Ondra Partners have taken into account the commercial assessments of the 
Henderson Directors. Accordingly, the Henderson Board intends unanimously to 
recommend that Henderson Shareholders vote in favour of the necessary 
resolutions to implement the Acquisition to be proposed at the Henderson 
General Meeting as they intend to do in respect of their own Henderson Shares 
(representing approximately 0.56 per cent. of the issued share capital of 
Henderson). 
 
Enquiries 
 
For further information, contact: 
 
Henderson 
 
Mav Wynn (Head of Investor Relations) 
Tel: +44 (0)20 7818 5135 
Email: mav.wynn@henderson.com 
 
Media enquiries 
 
Richard Acworth (Head of Corporate Communications) 
Tel: +44 (0)20 7818 3010 
Email: richard.acworth@henderson.com 
 
Australia: Cannings                   United Kingdom: Maitland 
Luis Garcia                           George Trefgarne/Rebecca Mitchell 
+61 (0)2 8284 9911                    +44 (0)20 7379 5151 
 
Gartmore 
 
Jeffrey Meyer (Chief Executive Officer) 
Tel: +44 (0)20 7782 2045 
Email: jeffrey.meyer@gartmore.com 
 
Keith Starling (Chief Financial Officer) 
Tel: +44 (0)20 7782 2569 
Email: keith.starling@gartmore.com 
 
UBS Investment Bank 
Tel: +44 (0)20 7567 8000 
 
John Humphrey 
James Robertson 
Rahul Luthra 
 
Ondra Partners 
Tel: +44 (0)20 7082 8750 
 
Michael Tory 
Stewart Bennett 
Elena Ciallie 
 
Goldman Sachs International 
Tel: +44 (0)20 7774 1000 
 
Todd Leland 
John Brennan 
Michael Casey 
 
Brunswick Group 
 
Andrew Garfield 
Tel: +44 (0)20 7404 5959 
Email: agarfield@brunswickgroup.com 
 
Gill Ackers 
Tel: +44 (0)20 7404 5959 
Email: gackers@brunswickgroup.com 
 
This announcement is for information purposes only and does not constitute, or 
form part of, any offer for or invitation to sell or purchase any securities, 
or any solicitation of any offer for, securities in any jurisdiction. This 
announcement does not constitute a prospectus or a prospectus equivalent 
document. The Acquisition will be made solely pursuant to the Scheme Document 
(or, if the Acquisition is implemented by way of the Takeover Offer, the Offer 
Document) which will contain the full terms and conditions of the Acquisition, 
including details of how to vote in respect of the Acquisition. Any response in 
respect of the Acquisition should be based only on the information contained in 
the Scheme Document. Gartmore Shareholders should read carefully the Scheme 
Document in its entirety before making a decision with respect to the 
Acquisition. 
 
The release, publication or distribution of this announcement in jurisdictions 
other than the United Kingdom and Australia may be restricted by law and, 
therefore, any persons who are subject to the laws of any jurisdiction other 
than the United Kingdom or Australia should inform themselves about, and 
observe, any applicable requirements. Failure to comply with any such 
restrictions may constitute a violation of the securities laws of any such 
jurisdiction. This announcement has been prepared to comply with the 
requirements of English and Australian law, the Listing Rules, the rules of the 
London Stock Exchange and the ASX Listing Rules and information disclosed may 
not be the same as that which would have been disclosed if this announcement 
had been prepared in accordance with the laws of jurisdictions outside England 
or Australia. 
 
Notice to US holders of Gartmore Shares 
 
The Acquisition relates to the securities of a Cayman incorporated company, 
listed on an exchange in the UK and is subject to UK disclosure requirements, 
which are different from those of the United States. The financial information 
included in this announcement has been prepared in accordance with 
International Financial Reporting Standards and thus may not be comparable to 
financial information of US companies or companies whose financial statements 
are prepared in accordance with generally accepted accounting principles in the 
United States. 
 
It may be difficult for US holders of Gartmore Shares to enforce their rights 
and any claim arising out of the US federal securities laws, since Henderson 
and Gartmore are located in a non-US jurisdiction, and some or all of their 
officers and directors may be residents of a non-US jurisdiction. US holders of 
Gartmore Shares may not be able to sue a non-US company or its officers or 
directors in a non-US court for violations of the US securities laws. Further, 
it may be difficult to compel a non-US company and its affiliates to subject 
themselves to a US court's judgement. 
 
The Acquisition is proposed to be implemented by means of a scheme of 
arrangement provided for under the Cayman Companies Law. The scheme of 
arrangement will relate to the shares of a Cayman company that is a `foreign 
private issuer' as defined under Rule 3b.4 under the Exchange Act. A 
transaction effected by means of a scheme of arrangement is not subject to the 
proxy and tender offer rules under the Exchange Act. Accordingly, the 
Acquisition is subject to the disclosure requirements and practices applicable 
in the Cayman Islands to schemes of arrangement, which differ from the 
disclosure requirement, which differ from the disclosure requirements of the US 
proxy and tender offer rules. 
 
The New Henderson Shares have not been, and will not be, registered under the 
Securities Act or under the securities laws of any state, district or other 
jurisdiction of the United States or of Canada or Japan and no regulatory 
clearances in respect of the registration of New Henderson Shares have been, or 
will be, applied for in any such jurisdiction. It is expected that the New 
Henderson Shares will be issued in reliance upon the exemption from the 
registration requirements of the Securities Act provided by section 3(a)(10) 
thereof. The Acquisition has not been and will not be approved or disapproved 
by the SEC, nor has the SEC or any US state securities commission passed upon 
the merits or fairness of the transaction nor upon the adequacy or accuracy of 
the information contained in this announcement. Any representation to the 
contrary is a criminal offence in the United States. Under applicable US 
securities laws, Gartmore Shareholders who are or will be `affiliates' of 
Henderson prior to or after the Effective Date will be subject to certain 
transfer restrictions relating to the New Henderson Shares received in 
connection with the Scheme. 
 
UBS Investment Bank is acting exclusively as lead financial adviser, sole 
corporate broker and sponsor to Henderson in relation to the Acquisition and 
no-one else and will not be responsible to anyone other than Henderson for 
providing the protections offered to clients of UBS Investment Bank nor for 
providing advice in relation to the Acquisition or the contents of this 
announcement. 
 
Ondra Partners is acting exclusively as joint financial adviser to Henderson in 
relation to the Acquisition and no-one else and will not be responsible to 
anyone other than Henderson for providing the protections offered to clients of 
Ondra Partners nor for providing advice in relation to the Acquisition or the 
contents of this announcement. 
 
Other than their responsibilities to Henderson, UBS Investment Bank and Ondra 
Partners do not accept any responsibility whatsoever for the contents of this 
announcement or for any statement made or purported to be made by either of 
them or on their behalf in connection with the Acquisition.  Each of UBS 
Investment Bank and Ondra Partners accordingly disclaims all and any other 
liability whether arising in tort, contract or otherwise which either of them 
might otherwise have in respect of this announcement or any such statement. 
 
Goldman Sachs International, which is authorised and regulated in the UK by the 
FSA, is acting exclusively for Gartmore and no one else in connection with the 
matters set out in this announcement and will not be responsible to anyone 
other than Gartmore for providing the protections afforded to clients of 
Goldman Sachs International nor for providing advice in relation to the matters 
set out in this announcement, the contents of this announcement, or any matter 
referred to herein. 
 
Forward-looking statements 
 
This announcement contains a number of forward-looking statements relating to 
the Henderson Group and the Gartmore Group with respect to, among other 
matters, the following: financial condition; results of operations; the 
respective businesses of the Henderson Group and the Gartmore Group; the 
economic conditions in which the Henderson Group and the Gartmore Group 
operate; benefits of the Acquisition and management plans and objectives. 
Henderson and Gartmore consider any statements that are not historical facts to 
be "forward-looking statements". Without limitation, any statements preceded or 
followed by or that include the words "targets", "plans", "believes", 
"expects", "aims", "intends", "will", "may", "anticipates", "estimates", 
"projects" or words or terms of similar substance or the negative thereof, 
identify forward looking statements. These forward-looking statements involve a 
number of risks and uncertainties that could cause actual results to differ 
materially from those suggested by them. Important factors that could cause 
actual results to differ materially from estimates or forecasts contained in 
the forward-looking statements include, among others, the following 
possibilities: future revenues are lower than expected; costs or difficulties 
relating to the combination of the businesses of the Henderson Group and the 
Gartmore Group, or of other future acquisitions, are greater than expected; 
expected cost savings from the transaction or from other future acquisitions 
are not fully realised or not realised within the expected time frame; 
competitive pressures in the industry increase; general economic conditions or 
conditions affecting the relevant industries, whether internationally or in the 
places the Henderson Group and the Gartmore Group do business are less 
favourable than expected, and/or conditions in the securities market are less 
favourable than expected. 
 
Forward-looking statements only speak as of the date on which they are made, 
and the events discussed herein may not occur. Subject to compliance with 
applicable law and regulation, neither Henderson nor Gartmore undertakes any 
obligation to update publicly or revise forward-looking statements, whether as 
a result of new information, future events or otherwise. 
 
The estimated operational cost savings and financial synergies have been 
calculated on the basis of the existing cost and operating structures of the 
Henderson Group and the Gartmore Group and by reference to current prices and 
the current regulatory environment. These statements of estimated cost savings 
and one-off costs relate to future actions and circumstances which, by their 
nature, involve risks, uncertainties and other factors. Because of this, the 
cost savings and financial synergies referred to may not be achieved, or those 
achieved could be materially different from those estimated. 
 
Any statements in this announcement regarding the benefits of the Acquisition 
or that the Acquisition will be earnings enhancing are not and do not 
constitute a profit forecast for any period, nor should any statements be 
interpreted to mean that earnings or earnings per share will necessarily be 
greater or lesser than the historical published earnings per share of Henderson 
or Gartmore as appropriate. 
 
Application of the City Code and Dealing Disclosure Requirements 
 
As previously advised, by virtue of its status as a Cayman incorporated company 
the City Code does not apply to Gartmore. 
 
Shareholders are reminded that whilst the Gartmore Articles reflect certain 
provisions of the City Code, as set out more fully below, the Panel does not 
have responsibility for ensuring compliance with the City Code and is not able 
to answer shareholders queries in relation to Gartmore or Henderson. 
 
In particular, public disclosures consistent with the provision of Rule 8.3 of 
the City Code should not be e-mailed to the Panel, but released directly 
through a Regulatory Information Service. 
 
Gartmore has incorporated certain provisions in the Gartmore Articles to 
reflect certain provisions of the City Code. The provisions do not, however, 
provide shareholders with the full protections offered by the City Code. In 
particular, the Gartmore Articles provide that subject to the Cayman Companies 
Law, to any other applicable law, to any other regulation in respect of 
takeovers which applies to Gartmore at any time, and to the Gartmore Board 
being satisfied, in any particular case, that the application of the following 
provisions are in the best interests of Gartmore, the Gartmore Board will use 
its reasonable endeavours to (i) apply and have Gartmore abide by the General 
Principles of the City Code; (ii) if circumstances arise under which Gartmore 
would be an offeree or otherwise the subject of an approach or the subject of a 
third party's statement of a firm intention to make an offer to comply with, 
and procure that Gartmore complies with, the provisions of the City Code 
applicable to an offeree company and the board of directors of an offeree 
company; and (iii) if the Gartmore Board recommends an offer, obtain an 
undertaking from the offeror to comply with the City Code in relation to the 
conduct and execution of that offer as though Gartmore were subject to the City 
Code (but recognising that the Panel will not have jurisdiction). As explained 
in more detail in paragraph 12 above, Gartmore and Henderson have agreed 
generally, subject to certain exceptions set out in the Implementation 
Agreement, to comply with the general principles and rules of the City Code in 
the conduct and execution of the Acquisition, as if the City Code applied to 
the Acquisition. 
 
Gartmore and Henderson Shareholders and others dealing in ordinary shares of 
Gartmore or Henderson are not obliged to disclose any of their dealings under 
the provisions of the City Code. However, market participants are requested to 
make disclosures of dealings as if the City Code applied and as if Gartmore 
were in an offer period under the City Code. Gartmore's and Henderson's 
websites contain the form of disclosure requested. If you are in any doubt as 
to whether or not you should disclose dealings, you should consult Gartmore or 
Henderson, as relevant. 
 
In light of the forgoing, under the provisions of Rule 8.3 of the City Code, if 
any person is, or becomes "interested" (directly or indirectly) in 1% or more 
of any class of "relevant securities" of Gartmore or Henderson, all "dealings" 
in any "relevant securities" of Gartmore or Henderson, as the case may be, 
(including by means of an option in respect of, or a derivative referenced to, 
any such "relevant securities") should be publicly disclosed by no later than 
3.30pm (London time) on the London business day following the date of the 
relevant transaction. In a situation where the City Code applies, this 
requirement would continue until the date on which the Scheme becomes effective 
or is otherwise withdrawn or on which the "offer period" otherwise ends. If two 
or more persons act together pursuant to an agreement or understanding, whether 
formal or informal, to acquire an "interest" in "relevant securities" of 
Gartmore or Henderson, they would be deemed to be a single person for the 
purpose of Rule 8.3 of the City Code. 
 
In accordance with the provisions of Rule 8.1 of the City Code, all "dealings" 
in "relevant securities" of Gartmore or Henderson by Gartmore or Henderson or 
by any of their respective "associates", would be disclosed by no later than 
12.00 noon (London time) on the London business day following the date of the 
relevant transaction. "Interests in securities" arise, in summary, when a 
person has long economic exposure, whether conditional or absolute, to changes 
in the price of securities. In particular, a person will be treated as having 
an "interest" by virtue of the ownership or control of securities, or by virtue 
of any option in respect of, or derivative referenced to, securities. 
 
Terms in quotation marks are defined in the City Code, which can be found on 
the Panel's website. If you are in any doubt as to whether or not you should 
disclose a "dealing" under Rule 8 of the City Code, as if it applied, you 
should consult Gartmore or Henderson. 
 
Publication on websites 
 
A copy of this announcement will be available on Henderson's website 
(www.henderson.com) and on Gartmore's website (www.gartmore.com) by no later 
than 12 noon (London time) on 13 January 2011. 
 
                                  APPENDIX I 
 
            CONDITIONS AND CERTAIN FURTHER TERMS OF THE ACQUISITION 
 
Part A: Conditions 
 
1. The Acquisition will be conditional upon the Scheme becoming unconditional 
and becoming effective by no later than 31 May 2011, or such later date (if 
any) as Henderson and Gartmore may agree and the Court may allow. 
 
2. The Scheme will be conditional upon: 
 
(1) its approval by a majority in number representing not less than 
three-fourths in value of the Scheme Shareholders (or the relevant class or 
classes thereof, if applicable) present and voting, either in person or by 
proxy, at the Court Meeting and at any separate class meeting which may be 
required by the Court or at any adjournment of any such meeting; 
 
(2) the sanction of the Scheme with or without modification (but subject to any 
such modification being acceptable to Henderson) by the Court and the delivery 
of an office copy of the Court Order to the Registrar of Companies for the 
Cayman Islands; and 
 
(3) the passing at the Henderson General Meeting (or at any adjournment of such 
meeting) of such resolution or resolutions as may be necessary to approve, 
effect and implement the Acquisition (including resolutions to (a) approve the 
terms of the Acquisition and (b) authorise and permit the creation and 
allotment of New Henderson Shares). 
 
3. In addition, Henderson and Gartmore have agreed that the Acquisition will be 
conditional upon the following matters and, accordingly, the necessary actions 
to make the Scheme effective will not be taken unless the following conditions 
(as amended if appropriate) have been satisfied or, where relevant, waived: 
 
(a) Henderson or its agent: 
 
(i) having received an acknowledgement by the UK Listing Authority that the 
application for the admission of the New Henderson Shares to the Official List 
with a premium listing has been approved and will become effective as soon as a 
notice pursuant to Listing Rule 3.2.7G has been issued by the FSA and any 
conditions to which such approval is expressed to be subject having been 
satisfied and an acknowledgement by the London Stock Exchange that such shares 
will be admitted to trading; and 
 
(ii) not having received any notice that the ASX will refuse or not grant 
official quotation to the New Henderson CHESS Depositary Interests to be issued 
to any Scheme Shareholders; 
 
 
(b) the Office of Fair Trading in the United Kingdom having either (i) declined 
jurisdiction over the Acquisition or (ii) indicated, in terms reasonably 
satisfactory to Henderson, that it is not the intention of the Office of Fair 
Trading or the appropriate Minister to refer the Acquisition or any matter 
arising therefrom or related thereto to the UK Competition Commission and the 
deadline for appealing the relevant decision to the UK Competition Appeal 
Tribunal having expired with no appeal having been lodged beforehand; 
 
(c) in respect of each notice under section 178 of FSMA which Henderson is 
under a duty to give in connection with the Acquisition: 
 
(i) the FSA notifying Henderson pursuant to section 189(4)(a) or 189(7) of FSMA 
that it has determined to approve the acquisition by Henderson of, or increase 
in control by Henderson over, each member of the Wider Gartmore Group which is 
a UK authorised person (as that expression is defined in section 191G of FSMA) 
pursuant to section 185 of FSMA on terms reasonably satisfactory to Henderson; 
or 
 
(ii) the FSA being treated, under section 189(6) of FSMA, as having approved 
each such acquisition of or increase in control; 
 
(d) each Relevant Regulator having approved or being deemed to have approved, 
in terms reasonably satisfactory to Henderson, the acquisition by Henderson of 
control over Gartmore and any member of the Wider Gartmore Group which is 
authorised or regulated by any Relevant Regulator, either unconditionally or 
subject to the fulfilment of conditions or obligations reasonably acceptable to 
Henderson; 
 
(e) the FSA having granted an investment firm consolidation waiver on terms 
reasonably satisfactory to Henderson in respect of the consolidated supervision 
of the Combined Group; 
 
(f) except as Disclosed, there being no provision of any agreement, 
arrangement, licence, permit, lease or other instrument to which any member of 
the Wider Gartmore Group is a party or by or to which any such member or any of 
its assets is or may be bound, entitled or subject, and no event or 
circumstance having occurred which under any agreement, arrangement, licence, 
permit, lease or other instrument which any member of the Wider Gartmore Group 
is a party to or by or to which any member of the Wider Gartmore Group or any 
of its assets is or may be bound, entitled or subject, which in consequence of 
the Acquisition or the acquisition or proposed acquisition by any member of the 
Wider Henderson Group of any shares or other securities (or the equivalent) in 
Gartmore or because of a change in the control or management of any member of 
the Gartmore Group or otherwise, would or might reasonably be expected to 
result in (in each case to an extent which is material and adverse in the 
context of the Wider Gartmore Group taken as a whole): 
 
(i) any moneys borrowed by or any other material indebtedness (actual or 
contingent) of, or grant available to any such member, being or becoming 
repayable or capable of being declared repayable immediately or earlier than 
their or its stated maturity date or repayment date or the ability of any such 
member to borrow moneys or incur any indebtedness being withdrawn or inhibited 
or being capable of becoming or being withdrawn or inhibited; 
 
(ii) any such agreement, arrangement, licence, permit, lease or instrument or 
the rights, liabilities, obligations, interests or business of any such member 
in or with any other firm, company, body or person (or any agreement or 
arrangements relating to any such interests or business) thereunder being 
terminated, adversely modified or affected or any obligation or liability 
arising or any action being taken thereunder; 
 
(iii) any assets or interests of, or any asset the use of which is enjoyed by, 
any such member being or falling to be disposed of or charged or any right 
arising under which any such asset or interest could be required to be disposed 
of or charged or could cease to be available to any member of the Wider 
Gartmore Group; 
 
(iv) the creation or enforcement of any mortgage, charge or other security 
interest over the whole or any part of the business, property or assets of any 
such member; 
 
(v) the rights, liabilities, obligations or interests of any such member in, or 
the business of any such member with, any person, firm or body (or any 
arrangement or arrangements relating to any such interest or business) being 
terminated, adversely modified or affected; 
 
(vi) the value of any such member or its financial or trading position or 
prospects being prejudiced or adversely affected; 
 
(vii) any such member ceasing to be able to carry on business under any name 
under which it presently does so; 
 
(viii) the creation of any liability, actual or contingent, by any such member; 
or 
 
(ix) any liability of any such member to make any severance, termination, bonus 
or other payment to any of the directors or other officers, 
 
and no event having occurred which, under any provision of any agreement, 
arrangement, licence, permit or other instrument to which any member of the 
Wider Gartmore Group is a party or by or to which any such member or any of its 
assets may be bound, entitled or subject, could result in any of the events or 
circumstances as are referred to in sub-paragraphs (i) to (ix) of this 
condition in any case where such result would be material and adverse in the 
context of the Wider Gartmore Group taken as a whole; 
 
(g) no Third Party having decided to take, institute, implement or threaten any 
action, proceeding, suit, investigation, enquiry or reference, or having 
required any such action to be taken or otherwise having done anything, or 
having enacted, made or proposed any statute, regulation, decision or order, 
and there not continuing to be outstanding any statute, regulation, decision or 
order, or having taken any other steps which would or might reasonably be 
expected to: 
 
(i) require, prevent or delay the divestiture, or materially alter the terms 
envisaged for any proposed divestiture by any member of the Wider Henderson 
Group or by any member of the Wider Gartmore Group of all or any portion of 
their respective businesses, assets or property, or impose any limitation on 
the ability of any of them to conduct their respective businesses (or any of 
them) or to own any of their respective assets or properties or any part 
thereof which, in any such case, is material in the context of (as the case may 
be) the Wider Henderson Group or the Wider Gartmore Group in either case taken 
as a whole; 
 
(ii) require, prevent or delay the divestiture by any member of the Wider 
Henderson Group of any shares or other securities (or the equivalent) in 
Gartmore; 
 
(iii) impose any limitation on, or result in a delay in, the ability of any 
member of the Wider Henderson Group directly or indirectly to acquire or to 
hold or to exercise effectively all or any rights of ownership in respect of 
shares or loans or securities convertible into shares or any other securities 
(or the equivalent) in Gartmore or on the ability of any member of the Wider 
Gartmore Group or any member of the Wider Henderson Group to hold or exercise 
effectively any rights of ownership of shares or other securities in, or to 
exercise management control over, any such member in any respect which is 
material in the context of the Wider Gartmore Group taken as a whole; 
 
(iv) otherwise adversely affect the business, assets, profits or prospects of 
any member of the Wider Henderson Group or of any member of the Wider Gartmore 
Group in a manner which is adverse to and material in the context of the Wider 
Henderson Group or the Wider Gartmore Group (as the case may be) in either case 
taken as a whole; 
 
(v) make the Acquisition or its implementation or the acquisition or proposed 
acquisition by Henderson or any member of the Wider Henderson Group of any 
shares or other securities in, or control of, Gartmore void, illegal and/or 
unenforceable under the laws of any jurisdiction, or otherwise, directly or 
indirectly, restrain, restrict, prohibit, delay or otherwise materially 
interfere with the same, or impose material additional conditions or 
obligations with respect thereto, or otherwise materially challenge or 
interfere therewith or require material amendment to the terms of the 
Acquisition; 
 
(vi) require any member of the Wider Henderson Group or the Wider Gartmore 
Group to acquire or offer to acquire any shares or other securities (or the 
equivalent) or interest in any member of the Wider Gartmore Group or the Wider 
Henderson Group or any asset owned by any third party; 
 
(vii) impose any limitation on the ability of any member of the Wider Henderson 
Group or any member of the Wider Gartmore Group to integrate or to co-ordinate 
its business, or any part of it, with all or any part of the businesses of any 
other members which is adverse to and material in the context of the group 
concerned taken as a whole; or 
 
(viii) result in any member of the Wider Gartmore Group ceasing to be able to 
carry on business under any name under which it presently does so, 
 
and all applicable waiting and other time periods during which any such Third 
Party could decide to institute, implement or threaten any action, proceeding, 
suit, investigation, enquiry or reference or any other step under the laws of 
any jurisdiction in respect of the Acquisition, the Scheme or the acquisition 
or proposed acquisition of any Gartmore Shares having expired, lapsed or been 
terminated; 
 
(h) all necessary, or otherwise reasonably deemed by Henderson or any member of 
the Wider Henderson Group to be appropriate, filings, notifications and/or 
applications having been made in connection with the Acquisition and all 
necessary waiting periods (including any extensions thereof) in connection 
therewith under any applicable legislation or regulation of any jurisdiction 
having expired, lapsed or been terminated (as appropriate) and all statutory or 
regulatory obligations in any jurisdiction having been complied with in 
connection with the Acquisition and all necessary, or otherwise reasonably 
deemed by Henderson or any member of the Wider Henderson Group to be 
appropriate, authorisations, orders, recognitions, grants, consents, licences, 
confirmations, clearances, permissions and approvals in any jurisdiction for or 
in respect of the Acquisition and the acquisition or proposed acquisition of 
any shares or other securities in, or control of, Gartmore by any member of the 
Wider Henderson Group having been obtained in terms and in a form reasonably 
satisfactory to Henderson from all appropriate Third Parties or persons or 
bodies with whom any member of the Wider Gartmore Group or the Wider Henderson 
Group has entered into contractual arrangements and all such authorisations, 
orders, recognitions, grants, consents, licences, confirmations, clearances, 
permissions and approvals together with all material authorisations, orders, 
recognitions, grants, licences, confirmations, clearances, permissions and 
approvals necessary, or otherwise reasonably deemed by Henderson or any member 
of the Wider Henderson Group to be appropriate, to carry on the business of any 
member of the Wider Gartmore Group remaining in full force and effect and all 
filings necessary for such purpose having been made and there being no notice 
or intimation of any intention to revoke, suspend, restrict, modify or not to 
renew any of the same at the time at which the Acquisition becomes otherwise 
unconditional and all necessary statutory or regulatory obligations in any 
jurisdiction having been complied with, which in any such case would be 
material in the context of the Wider Gartmore Group taken as a whole; 
 
(i) except as Disclosed, no member of the Wider Gartmore Group having, since 31 
December 2009 to an extent which is material in the context of the Wider 
Gartmore Group taken as a whole: 
 
(i) save as between Gartmore and wholly-owned subsidiaries of Gartmore or for 
Gartmore Shares issued pursuant to the awards granted under the Gartmore 
Omnibus Incentive Plan, issued, authorised or proposed the issue of additional 
shares of any class; 
 
(ii) save as between Gartmore and wholly-owned subsidiaries of Gartmore or for 
the grant of awards under the Gartmore Omnibus Incentive Plan, issued or agreed 
to issue, authorised or proposed the issue of securities convertible into 
shares of any class or rights, warrants or options to subscribe for, or 
acquire, any such shares or convertible securities; 
 
(iii) other than to another member of the Gartmore Group, recommended, 
declared, paid or made or proposed to recommend, declare, pay or make any 
bonus, dividend or other distribution whether payable in cash or otherwise; 
 
(iv) save for intra-Gartmore Group transactions, merged or demerged with or 
acquired any body corporate, partnership or business or acquired or disposed of 
or transferred, mortgaged or charged or created any security interest over any 
assets or any right, title or interest in any asset (including shares and trade 
investments) or authorised or proposed or announced any intention to propose 
any merger, demerger, acquisition or disposal, transfer, mortgage, charge or 
security interest, in each case, other than in the ordinary course of business; 
 
(v) save for intra-Gartmore Group transactions, made or authorised or proposed 
or announced an intention to propose any change in its loan capital; 
 
(vi) issued, authorised or proposed the issue of any debentures or (save for 
intra-Gartmore Group transactions), save in the ordinary course of business, 
incurred or increased any indebtedness or become subject to any contingent 
liability; 
 
(vii) save for intra-Gartmore Group transactions, purchased, redeemed or repaid 
or announced any proposal to purchase, redeem or repay any of its own shares or 
other securities or reduced or, save in respect to the matters mentioned in 
sub-paragraph (i) above, made any other change to any part of its share capital 
which in any such case is material; 
 
(viii) save for intra-Gartmore Group transactions, implemented, effected or 
authorised, proposed or announced its intention to implement, effect, authorise 
or propose any reconstruction, amalgamation, scheme, commitment or other 
transaction or arrangement otherwise than in the ordinary course of business or 
entered into or changed the terms of any contract, service agreement or other 
arrangement with any director or senior executive save to the extent requested 
in writing by Henderson; 
 
(ix) entered into or varied or authorised, proposed or announced its intention 
to enter into or vary any contract, transaction or commitment (whether in 
respect of capital expenditure or otherwise) which is of a long term, onerous 
or unusual nature or magnitude or which is or could reasonably be expected to 
be materially restrictive on the businesses of any member of the Wider Gartmore 
Group or the Wider Henderson Group or which involves or could reasonably be 
expected to involve an obligation of such a nature or magnitude or which is 
other than in the ordinary course of business; 
 
(x) (other than in respect of a member which is dormant and was solvent at the 
relevant time) taken or proposed any corporate action or had any legal 
proceedings started or threatened against it for its winding-up (voluntary or 
otherwise), dissolution or reorganisation or for the appointment of a receiver, 
administrative receiver, administrator, trustee or similar officer of all or 
any of its assets or revenues or any analogous proceedings in any jurisdiction 
or had any such person appointed in any jurisdiction; 
 
(xi) entered into any contract, transaction or arrangement which would be 
materially restrictive on the business of any member of the Wider Gartmore 
Group or the Wider Henderson Group other than of a nature and to an extent 
which is normal in the context of the business concerned; 
 
(xii) waived or compromised any claim otherwise than in the ordinary and usual 
course of business and which is material in the context of the Wider Gartmore 
Group taken as a whole; 
 
(xiii) entered into any contract, commitment, arrangement or agreement 
otherwise than in the ordinary course of business or passed any resolution or 
made any offer (which remains open for acceptance) with respect to or announced 
any intention to, or proposed to, effect any of the transactions, matters or 
events referred to in this condition; 
 
(xiv) having made or agreed or consented to any significant change to: 
 
(1) the terms of the trust deeds constituting the pension scheme(s) established 
by any member of the Wider Gartmore Group for its directors, employees or their 
dependents; 
 
(2) the contributions payable to any such pension scheme(s) or to the benefits 
which accrue or to the pensions which are payable thereunder; 
 
(3) the basis on which qualification for, or accrual or entitlement to, such 
benefits or pensions are calculated or determined; 
 
(4) the basis on which the liabilities (including pensions) of such pension 
schemes are funded, valued or made; or 
 
(5) the trustees, involving the appointment of a trust corporation, which in 
any such case would be material in the context of the pension schemes operated 
by the Gartmore Group; 
 
(xv) proposed, agreed to provide or modified the terms of any share option 
scheme, incentive scheme or other benefit relating to the employment or 
termination of employment of any person employed by the Wider Gartmore Group; 
 
(xvi) been unable, or having admitted in writing that it is unable, to pay its 
debts or having stopped or suspended (or threatened to stop or suspend) payment 
of its debts generally or ceased or threatened to cease carrying on all or a 
substantial part of its business; or 
 
(xvii) taken (or agreed or proposed to take) any action which would require, 
were the City Code applicable to the Acquisition, the consent of the Panel or 
the approval of Gartmore Shareholders in a general meeting in accordance with, 
or as contemplated by, Rule 21.1 of the City Code, 
 
and, for the purposes of paragraphs (iii),(iv), (v), (vi), (vii) and (viii) of 
this condition, the term "Gartmore Group" shall mean Gartmore and its 
wholly-owned subsidiaries; 
 
(j) except as Disclosed: 
 
(i) no adverse change or deterioration having occurred in the business, assets, 
financial or trading position or profits or prospects of any member of the 
Wider Gartmore Group which is material in the context of the Wider Gartmore 
Group taken as a whole; and 
 
(ii) no litigation, arbitration proceedings, prosecution or other legal 
proceedings having been threatened, announced or instituted by or against, or 
remaining outstanding against, any member of the Wider Gartmore Group or to 
which any member of the Wider Gartmore Group is or is reasonably likely to 
become a party (whether as a claimant, defendant or otherwise) and no enquiry 
or investigation by, or complaint or reference to, any Third Party against or 
in respect of any member of the Wider Gartmore Group having been instituted, 
announced or threatened by or against or remaining outstanding in respect of 
any member of the Wider Gartmore Group which in any such case might reasonably 
be expected adversely to affect any member of the Wider Gartmore Group to an 
extent which is material in the context of the Wider Gartmore Group taken as 
whole; and 
 
(iii) no steps having been taken and no omissions having been made which are 
likely to result in the withdrawal, cancellation, termination or modification 
of any licence held by any member of the Wider Gartmore Group which is 
necessary for the proper carrying on of its business; 
 
(k) except as Disclosed, Henderson not having discovered: 
 
(i) that any financial, business or other information concerning the Wider 
Gartmore Group as contained in the information publicly disclosed at any time 
by or on behalf of any member of the Wider Gartmore Group is misleading, 
contains a misrepresentation of fact or omits to state a fact necessary to make 
that information not misleading which in any case is material and adverse in 
the context of the Wider Gartmore Group taken as whole; 
 
(ii) that any member of the Wider Gartmore Group is subject or likely to become 
subject to any liability (contingent or otherwise) which has not been Disclosed 
and which is or would be likely to be material in the context of the Gartmore 
Group as a whole or which would otherwise be likely to adversely affect the 
business, assets, financial or trading position or profits or prospects of any 
member of the Wider Gartmore Group; or 
 
(iii) any information which affects the import of any information disclosed at 
any time by or on behalf of any member of the Wider Gartmore Group. 
 
For the purposes of these conditions the "Wider Gartmore Group" means Gartmore 
and its subsidiary undertakings, associated undertakings and any other 
undertaking in which Gartmore and/or such undertakings (aggregating their 
interests) have a significant interest and the "Wider Henderson Group" means 
Henderson and its subsidiary undertakings, associated undertakings and any 
other undertaking in which Henderson and/or such undertakings (aggregating 
their interests) have a significant interest and for these purposes "subsidiary 
undertaking" and "undertaking" have the meanings given by the Companies Act 
2006, "associated undertaking" has the meaning given by paragraph 19 of 
Schedule 6 to the Large and Medium-sized Companies and Groups (Accounts and 
Reports) Regulations 2008 other than paragraph 19(1)(b) of Schedule 6 to those 
Regulations which shall be excluded for this purpose, and "significant 
interest" means a direct or indirect interest in twenty per cent. or more of 
the equity share capital (as defined in the Companies Act 2006). 
 
4. Subject to the requirements of the City Code Expert, Henderson reserves the 
right to waive, in whole or in part, all or any of the conditions except 
condition 2 and conditions 3(a) and (c). Henderson will be under no obligation 
to waive or treat as satisfied any of the other conditions in paragraph 3 
notwithstanding that the other conditions may have been waived or satisfied and 
that there are no circumstances indicating that the relevant condition may not 
be capable of satisfaction. 
 
5. The Acquisition will lapse and the Scheme will not proceed if, before the 
date of the Court Meeting, there is a reference to the UK Competition 
Commission. 
 
6. Henderson reserves the right to elect at any time prior to the Effective 
Date to implement the Acquisition by way of a contractual offer. In such event, 
such offer will be implemented on the same terms (subject to any revisions, 
including (without limitation) an acceptance condition set at 90 per cent. (or 
such lower percentage as may be determined by the City Code Expert of the 
shares to which such offer relates) so far as applicable, as those which would 
apply to the Scheme. 
 
7. The Scheme shall be governed by, and construed in accordance with, the laws 
of the Cayman Islands and be subject to the exclusive jurisdiction of the 
courts of the Cayman Islands and to the conditions set out above and in the 
formal Scheme Document. The Acquisition will comply with the applicable rules 
and regulations of the UK Listing Authority and the London Stock Exchange and 
any other applicable laws or regulations. 
 
Part B: Certain further terms of the Acquisition 
 
1. Fractions of New Henderson Shares will not be allotted or issued to holders 
of Gartmore Shares. Fractional entitlements to New Henderson Shares will be 
aggregated and sold in the market and the net proceeds of sale distributed pro 
rata to persons entitled thereto. However, individual entitlements to amounts 
of less than GBP5 will be retained for the benefit of Henderson. 
 
2. The New Henderson Shares will be issued credited as fully paid and will rank 
pari passu in all respects with the existing Henderson Shares and will be 
entitled to all dividends and other distributions declared or paid by Henderson 
after the date of this announcement. Applications will be made to the UKLA for 
the New Henderson Shares to be admitted to the Official List and to the London 
Stock Exchange for the New Henderson Shares to be admitted to trading. 
Application for quotation on the financial market operated by ASX will be made 
in respect of any New Henderson CHESS Depositary Interests representing New 
Henderson Shares to be issued. 
 
3. Gartmore Shares which will be acquired under the Acquisition will be 
acquired fully paid and free from all liens, equities, charges, encumbrances, 
options, rights of pre-emption and any other third party rights and interests 
of any nature and together with all rights now or hereafter attaching or 
accruing to them, including voting rights and the right to receive and retain 
in full all dividends and other distributions (if any) declared, made or paid 
on or after the date of this announcement. 
 
                                  APPENDIX II 
 
                               BASES AND SOURCES 
 
1. Unless otherwise stated: 
 
  * financial information on Henderson is extracted from Henderson's annual 
    report and accounts for the year ended 31 December 2009, from the 
    announcement of Henderson's interim results for the six months ended 30 
    June 2010 and from Henderson's internal records; 
 
  * financial information on Gartmore is extracted from Gartmore's Annual 
    Report and Accounts for the year ended 31 December 2009, from the 
    announcement of Gartmore's interim results for the six months ended 30 June 
    2010 and from Gartmore's internal records; and 
 
  * earnings per share figures are stated exclusive of exceptional and 
    extraordinary items where these have been disclosed. 
 
 2. The value of the Acquisition is calculated: 
 
  * by reference to a price of 138.2 pence per Henderson Share (the Closing 
    Price on 11 January 2011, the last Business Day prior to this 
    announcement); and 
 
  * on the basis of the issued share capital of Gartmore referred to in 
    paragraph 4 below. 
 
 3. The percentage of the Combined Group that Gartmore Shareholders will hold 
    upon completion of the Acquisition is calculated on the basis of: 
 
  * the issued ordinary share capital of Gartmore referred to in paragraph 4 
    below; and 
 
  * the issued ordinary share capital of Henderson referred to in paragraph 4 
    below. 
 
 4. As at the close of business on 11 January 2011, the last Business Day prior 
    to the date of this announcement, Gartmore had 363,940,908 ordinary shares 
    of GBP0.005 each in issue; and Henderson had 833,878,637 ordinary shares of 
    12.5 pence each, including 554,228,264 Henderson CHESS Depositary Interests 
    representing ordinary shares, in issue. The International Securities 
    Identification Number for Gartmore Shares is KYG917851084, for Henderson 
    Shares is JE00B3CM9527 and for Henderson CHESS Depositary Interests is 
    AU000000HGG2. 
 
 5. Unless otherwise stated: 
 
 6. 
      + Henderson and Gartmore Estimated AUM as at 31 December 2010 is 
        unaudited, has been extracted from the relevant company's internal 
        accounting records, is estimated and subject to adjustments; and 
 
  * Gartmore's estimated AUM of GBP17.2bn as at 31 December 2010 is stated 
    without reference to notified redemptions. Taking into account notified 
    redemptions received by Gartmore as at 7 January 2011 of GBP0.7bn in 
    aggregate (comprising GBP0.5bn from alternative funds (including GBP0.2bn for 
    the 1 January 2011 dealing day), GBP0.1bn from mutual funds and GBP0.1bn from 
    segregated mandates), Gartmore's Estimated AUM as at 31 December 2010 was GBP 
    16.5bn.? This estimate has been prepared by Gartmore management based on 
    internal accounting information, but has not been audited. It uses market 
    and other valuations as at 31 December 2010. 
 
 6. Gartmore's estimated run-rate revenue of approximately GBP163m is the 
    aggregate of (a) Gartmore's run-rate net management fee revenue (net of 
    distribution costs) and (b) Gartmore's gross performance fee and 
    transaction fee revenue; each of which is calculated on the basis of 
    Gartmore Estimated AUM of GBP16.5bn as at 31 December 2010. Gartmore's net 
    management fee revenue (net of distribution costs) is estimated to be GBP120m 
    and is calculated by multiplying the Estimated AUM for each fund/mandate 
    with the average net management fee rate as at 31 December 2010 net of 
    distribution costs for that fund/mandate. Gartmore's run-rate gross 
    performance fee revenue is calculated on the basis of an assumed return 
    (net of management fees) of 7.5 per cent. on Gartmore's hedge and absolute 
    return funds with an absolute return benchmark and transaction fee revenue 
    calculated on the basis of the cost of administering UK mutual funds and 
    includes other income. The amounts referred to in this paragraph have not 
    been audited, should not be interpreted as being a forecast of the run-rate 
    revenue or fees for this or any subsequent financial period, as this will 
    depend on the actual level of redemptions (if any) and market and other 
    value movements affecting the amount of Estimated AUM. 
 
                                 APPENDIX III 
 
                      DETAILS OF IRREVOCABLE UNDERTAKINGS 
 
 1. The following Gartmore Directors who are Gartmore Shareholders or have an 
    interest in Gartmore Shares have given irrevocable undertakings to vote in 
    favour of the Scheme: 
 
     Name                              Number of Gartmore  Percentage of issued 
                                       Shares              capital 
 
1    Jeffrey Meyer                     6,983,104           1.91 
 
2    Keith Starling                    2,887,139           0.79 
 
3    Andrew Skirton                    619,672             0.17 
 
4    David Lindsell                    47,852              0.01 
 
5    David Barclay                     22,727              <0.01 
 
     TOTAL                             10,560,494          2.9 
 
Notes: 
 
These undertakings will continue to be binding even if a Competing Proposal is 
made which exceeds the value of the Acquisition and even if such higher 
Competing Proposal is recommended for acceptance by the Gartmore Directors. 
However, these undertakings shall cease to be binding if the Scheme or Takeover 
Offer lapses or is withdrawn or if the Implementation Agreement is terminated 
in accordance with its terms. 
 
 2. The following Gartmore Shareholders have given irrevocable undertakings to 
    vote in favour of the Scheme: 
 
     Name                              Number of Gartmore  Percentage of issued 
                                       Shares              capital 
 
1    Hellmann & Friedman Acquisition I 65,433,875          17.97 
     Limited(1) 
 
2    Hellmann & Friedman Acquisition   9,304,990           2.53 
     II Limited(1) 
 
3    Roger Guy(1)                      16,912,302          4.64 
 
4    Henderson New Star(2)             44,044,695(3)       12.10 
 
5    Lansdowne Partners(2)             18,200,000          5.00 
 
6    Barclays Wealth Trustees          2,830,339           0.77 
     (Guernsey) Limited(1)(4) 
 
     TOTAL                             156,726,201         43.01 
 
Notes: 
 
(1) These undertakings will continue to be binding even if a Competing Proposal 
is made which exceeds the value of the Acquisition and even if such higher 
Competing Proposal is recommended for acceptance by the Gartmore Directors. 
However, these undertakings shall cease to be binding if the Scheme or Takeover 
Offer lapses or is withdrawn or if the Implementation Agreement is terminated 
in accordance with its terms. 
 
(2) These undertakings will continue to be binding if there is a Competing 
Proposal unless such Competing Proposal represents an improvement of not less 
than 10 per cent. on the price per Gartmore Share under the Acquisition as set 
out in this announcement and Henderson does not match that Competing Proposal 
within seven days of the announcement of the Competing Proposal. In addition, 
these undertakings shall cease to be binding if the Scheme or Takeover Offer 
lapses or is withdrawn or if the Implementation Agreement is terminated in 
accordance with its terms. 
 
(3) Henderson New Star's holding comprises of interests in 3,908,959 (1.07%) 
Gartmore Shares held through contracts for difference and beneficial interests 
in 40,135,736 (11.03%) Gartmore Shares. 
 
(4) This undertaking is over unallocated shares held as trustee for the 
Gartmore Omnibus Incentive Plan and the number of shares will therefore 
fluctuate as Gartmore Shares cease to be or become unallocated. 
 
 3. The following Gartmore employees who are Gartmore Shareholders or have an 
    interest in Gartmore Shares have given irrevocable undertakings to agree to 
    and to be bound by the Scheme: 
 
     Name                              Number of Gartmore  Percentage of issued 
                                       Shares              capital 
 
1    John Bennett                      11,582,939          3.18 
 
2    Christopher Palmer                5,842,572           1.60 
 
3    John Clive Stewart                5,348,419           1.46 
 
4    Neil Rogan                        5,178,911           1.42 
 
5    Robert Giles                      4,341,143           1.19 
 
6    Christopher Burvill               4,295,937           1.18 
 
7    Ben Shaheen Wallace               4,210,486           1.15 
 
8    Charles Edward Awdry              2,232,344           0.61 
 
9    Adam James McConkey               2,078,237           0.57 
 
10   Simon John Peters                 1,783,822           0.49 
 
11   Leopold Arminjon                  1,463,193           0.40 
 
12   Tomas Pinto                       1,463,193           0.40 
 
13   Anthony John Lanning              587,497             0.16 
 
14   Luke Christian Newman             506,948             0.13 
 
15   Simon Melluish                    50,065              0.01 
 
     TOTAL                             50,965,706          13.95 
 
Notes: 
 
These undertakings will continue to be binding even if a Competing Proposal is 
made which exceeds the value of the Acquisition and even if such higher 
Competing Proposal is recommended for acceptance by the Gartmore Directors. 
However, these undertakings shall cease to be binding if the Scheme or Takeover 
Offer lapses or is withdrawn. 
 
                                  APPENDIX IV 
 
                                  DEFINITIONS 
 
In this announcement, the following definitions apply unless the context 
requires otherwise: 
 
"Acquisition"                        means the proposed recommended 
                                     acquisition by Henderson of the entire 
                                     issued share capital of Gartmore (other 
                                     than any Gartmore Shares already held by 
                                     Henderson (if any)), to be effected by 
                                     way of (i) the Scheme or (ii) the 
                                     Takeover Offer (as the case may be); 
 
"Annual Report and Accounts"         means the annual report and accounts of 
                                     Gartmore for the year ended 31 December 
                                     2009; 
 
"ASX"                                means ASX Limited (ABN 98 008 624 691); 
 
"ASX Listing Rules"                  means the listing rules of the ASX; 
 
"AUM"                                means assets under management; 
 
"Business Day"                       means a day (other than a Saturday or 
                                     Sunday) on which banks in the City of 
                                     London and in Sydney are generally open 
                                     for business; 
 
"Cayman Companies Law"               means The Companies Law (2010 Revision) 
                                     of the Cayman Islands, as revised and 
                                     consolidated; 
 
"City Code"                          means the UK City Code on Takeovers and 
                                     Mergers; 
 
"Closing Price"                      means the closing middle-market 
                                     quotation of a Gartmore Share or a 
                                     Henderson Share (as the context 
                                     requires) as derived from the daily 
                                     official list of the London Stock 
                                     Exchange; 
 
"City Code Expert"                   means the expert appointed pursuant to 
                                     the Implementation Agreement to 
                                     determine the application of the 
                                     provisions of the City Code; 
 
"Combined Group"                     means the Henderson Group following 
                                     completion of the Acquisition; 
 
"Competing Proposal"                 means any offer, scheme of arrangement, 
                                     merger or business combination, or 
                                     similar transaction which is announced 
                                     or entered into by a third party which 
                                     is not acting in concert with Henderson, 
                                     including any revisions thereof the 
                                     purpose of which is, or would be, to 
                                     enable that third party to acquire, 
                                     directly or indirectly, all or a 
                                     significant proportion (being 50 per 
                                     cent. or more when aggregated with the 
                                     shares already held by the third party 
                                     and any person acting in concert with 
                                     that third party) of the share capital 
                                     of Gartmore or all or a significant 
                                     proportion (being 50 per cent. or more) 
                                     of its undertaking, assets or business 
                                     or any other arrangement or transaction 
                                     between Gartmore (and/or any member of 
                                     the Gartmore Group) and any third party 
                                     which is or would be inconsistent with 
                                     implementation of the Acquisition; 
 
"Competition Commission"             means the body corporate known as the 
                                     Competition Commission as established 
                                     under section 45 of the Competition Act 
                                     1998, as amended; 
 
"Conditions"                         means the conditions to the Acquisition 
                                     as set out in Appendix I to this 
                                     announcement and to be set out in the 
                                     Scheme Document and `Condition' means 
                                     any one of them; 
 
"Court"                              means the Grand Court of the Cayman 
                                     Islands; 
 
"Court Meeting"                      means the meeting of Scheme Shareholders 
                                     (and any adjournment thereof) to be 
                                     convened by order of the Court pursuant 
                                     to section 86 of the Cayman Companies 
                                     Law to consider and, if thought fit, to 
                                     approve the Scheme (with or without 
                                     amendment); 
 
"Court Order"                        means the order(s) of the Court 
                                     sanctioning the Scheme under section 86 
                                     of the Cayman Companies Law; 
 
"Disclosed"                          means fairly disclosed in writing by or 
                                     on behalf of Gartmore to Henderson or in 
                                     the Annual Report and Accounts or 
                                     publicly announced to a Regulatory 
                                     Information Service by or on behalf of 
                                     Gartmore in each case prior to the date 
                                     of this announcement; 
 
"Effective Date"                     means the date upon which (i) the 
                                     Acquisition takes effect in accordance 
                                     with the terms of the Scheme or (ii) if 
                                     Henderson elects to implement the 
                                     Acquisition by way of the Takeover 
                                     Offer, the Takeover Offer becomes or is 
                                     declared unconditional in all respects; 
 
"Estimated AUM"                      means, in respect of Henderson the 
                                     amount of AUM estimated by Henderson as 
                                     at the relevant date, determined on the 
                                     basis set out in Appendix II and, in 
                                     respect to Gartmore the amount of AUM 
                                     estimated by Gartmore as at the relevant 
                                     date taking into account all notified 
                                     redemptions, determined on the basis set 
                                     out in Appendix II; 
 
"Exchange Act"                       means the United States Securities 
                                     Exchange Act of 1934, as amended; 
 
"Final Dividend"                     means Henderson's final dividend for the 
                                     financial year 2010, which Henderson 
                                     intends to announce at the time of 
                                     announcement of its final results for 
                                     the year ended 31 December 2010 and 
                                     which will be proposed for approval at 
                                     Henderson's next annual general meeting; 
 
"FSA"                                means the Financial Services Authority 
                                     of the UK and any successor authorities; 
 
"FSMA"                               means the Financial Services and Markets 
                                     Act 2000 as amended; 
 
"Gartmore"                           means Gartmore Group Limited; 
 
"Gartmore Articles"                  means the articles of association of 
                                     Gartmore in force from time to time; 
 
"Gartmore Board"                     means the board of directors of Gartmore 
                                     from time to time; 
 
"Gartmore Depositary"                means Capita IRG Trustees Limited; 
 
"Gartmore Depositary Interests"      means the dematerialised depositary 
                                     interests in respect of the Gartmore 
                                     Shares issued by the Gartmore 
                                     Depositary; 
 
"Gartmore Directors"                 means the directors of Gartmore from 
                                     time to time; 
 
"Gartmore EBT Trustee"               means Barclays Wealth Trustees 
                                     (Guernsey) Limited; 
 
"Gartmore Group"                     means Gartmore and its subsidiary 
                                     undertakings; 
 
"Gartmore Omnibus Incentive Plan"    means the Gartmore Group Limited Omnibus 
                                     Incentive Plan, as amended by the 
                                     Gartmore Remuneration Committee on 28 
                                     May 2010; 
 
"Gartmore Shareholders"              means holders of Gartmore Shares and/or, 
                                     where the context so requires, holders 
                                     of Gartmore Depositary Interests; 
 
"Gartmore Shares"                    means the ordinary shares of GBP0.005 each 
                                     in the capital of Gartmore and/or, where 
                                     the context so requires, the Gartmore 
                                     Depositary Interests; 
 
"Hellman and Friedman" or "H&F"      means Hellman & Friedman Acquisition I 
                                     Limited and Hellman & Friedman 
                                     Acquisition II Limited; 
 
"Henderson"                          means Henderson Group plc; 
 
"Henderson Board"                    means the board of directors of 
                                     Henderson at the date of this 
                                     announcement; 
 
"Henderson CHESS Depositary"         means CHESS Depositary Nominees Pty Ltd 
                                     (ABN 75 071 346 506); 
 
"Henderson CHESS Depositary          means the CHESS Depositary Interests 
Interests"                           issued by Henderson CHESS Depositary, 
                                     where each Henderson CHESS Depositary 
                                     Interest represents a beneficial 
                                     interest in one Henderson Share; 
 
"Henderson Directors"                means the directors of Henderson from 
                                     time to time; 
 
"Henderson General Meeting"          means the general meeting of the 
                                     Henderson Shareholders to be convened to 
                                     consider the necessary resolutions to 
                                     implement the Acquisition (and any 
                                     adjournment thereof); 
 
"Henderson Group"                    means Henderson and its subsidiary 
                                     undertakings; 
 
"Henderson Shareholder Circular"     means the circular proposed to be 
                                     despatched to Henderson Shareholders 
                                     containing details of the Acquisition 
                                     and containing notice of the Henderson 
                                     General Meeting; 
 
"Henderson Shareholders"             means holders of Henderson Shares or 
                                     Henderson CHESS Depositary Interests (as 
                                     appropriate) from time to time; 
 
"Henderson Shares"                   means ordinary shares of 12.5 pence each 
                                     in the capital of Henderson; 
 
"Implementation Agreement"           means the implementation agreement 
                                     between Gartmore and Henderson in 
                                     respect of the Acquisition dated on or 
                                     about the date of this announcement; 
 
"Listing Rules"                      means the rules and regulations made by 
                                     the UK Listing Authority; 
 
"London Stock Exchange"              means London Stock Exchange plc or its 
                                     successor; 
 
"New Henderson CHESS Depositary      means the Henderson CHESS Depositary 
Interests"                           Interests to be issued by Henderson 
                                     CHESS Depositary in respect of New 
                                     Henderson Shares to be issued to 
                                     Gartmore Shareholders who are to receive 
                                     Henderson CHESS Depositary Interests; 
 
"New Henderson Shares"               means the Henderson Shares to be issued 
                                     to Gartmore Shareholders or the 
                                     Henderson CHESS Depositary as 
                                     consideration for the Acquisition; 
 
"Offer Document"                     means the document proposed to be 
                                     despatched to Gartmore Shareholders if 
                                     the Acquisition is effected by way of 
                                     Takeover Offer; 
 
"Office of Fair Trading"             means the UK Office of Fair Trading; 
 
"Official List"                      means the official list of the UK 
                                     Listing Authority; 
 
"Ondra Partners"                     means Ondra LLP, trading as Ondra 
                                     Partners; 
 
"Panel"                              means the Panel on Takeovers and 
                                     Mergers; 
 
"Pearl"                              means Pearl Group Limited and its 
                                     subsidiaries 
 
"Registrar of Companies"             means the Registrar of Companies in the 
                                     Cayman Islands; 
 
"Regulatory Information Service"     means any of the services authorised 
                                     from time to time by the FSA for the 
                                     purpose of disseminating regulatory 
                                     announcements; 
 
"Relevant Regulator"                 means in respect of Gartmore or any 
                                     member of the Wider Gartmore Group, each 
                                     and any regulatory authority to the 
                                     supervision and/or authorisation of 
                                     which it is subject whether statutory, 
                                     self-regulatory or otherwise, including, 
                                     without limitation, the FSA, any 
                                     settlement system, stock exchange or 
                                     listing authority; 
 
"Scheme" or "Scheme of Arrangement"  means the scheme of arrangement proposed 
                                     to be implemented under section 86 of 
                                     the Cayman Companies Law between 
                                     Gartmore and the Scheme Shareholders 
                                     upon and subject to the Conditions; 
 
"Scheme Document"                    means the scheme circular proposed to be 
                                     despatched to Gartmore Shareholders 
                                     containing the details of the 
                                     Acquisition and the Scheme and certain 
                                     information about Gartmore and Henderson 
                                     and containing notices of the Court 
                                     Meeting and the text of the Scheme and, 
                                     where the context so admits, includes 
                                     any form of proxy, election, notice, 
                                     court document, meeting advertisement or 
                                     other document reasonably required in 
                                     connection with the Scheme; 
 
"Scheme Shareholders"                means the holders of Scheme Shares; 
 
"Scheme Shares"                      means Gartmore Shares: 
 
                                      a. in issue at the date of the Scheme 
                                         Document; 
 
                                      b. (if any) issued after the date of 
                                         the Scheme Document and prior to the 
                                         Voting Record Time; and 
 
                                      c. (if any) issued, on or after the 
                                         Voting Record Time either on terms 
                                         that the original or subsequent 
                                         holder(s) thereof shall be bound by 
                                         the Scheme or in respect of which 
                                         the holder(s) thereof are, or have 
                                         agreed in writing to be, bound by 
                                         the Scheme; 
 
"SEC"                                means the United States Securities and 
                                     Exchange Commission; 
 
"Securities Act"                     means the United States Securities Act 
                                     of 1933, as amended; 
 
"subsidiary undertaking",            have the meanings respectively ascribed 
"associated undertaking", and        to them under the UK Companies Act; 
"undertaking" 
 
"Takeover Offer"                     means a takeover offer under section 88 
                                     of the Cayman Companies Law; 
 
"Third Party"                        means a government, governmental, 
                                     quasi-governmental, supranational, 
                                     statutory, regulatory or investigative 
                                     body, trade agency, court, association, 
                                     institution or any other body or person 
                                     in any jurisdiction; 
 
"UBS" or "UBS Investment Bank"       means UBS Limited; 
 
"UK" or "United Kingdom"             means the United Kingdom of Great 
                                     Britain and Northern Ireland and its 
                                     dependent territories; 
 
"UK Companies Act"                   means the Companies Act 2006 as amended; 
 
"UK Listing Authority"               means the UK Financial Services 
                                     Authority acting in its capacity as the 
                                     competent authority for listing in the 
                                     United Kingdom for the purposes of Part 
                                     VI of FSMA; 
 
"United States"                      means the United States of America 
                                     (including the states of the United 
                                     States and the District of Columbia), 
                                     its possessions and territories and all 
                                     areas subject to its jurisdiction; 
 
"Underlying Earnings" or "Underlying means recurring profit before 
Profit"                              amortisation of intangibles, a void 
                                     property finance charge and employee 
                                     incentive scheme costs; 
 
"Voting Record Time"                 means the time fixed by the Court for 
                                     determining the entitlement to vote at 
                                     the Court Meeting as set out in the 
                                     notice thereof; 
 
"Wider Henderson Group"              means the Henderson Group and associated 
                                     undertakings and any other body 
                                     corporate, partnership, joint venture or 
                                     person in which the Henderson Group and 
                                     such undertakings (aggregating their 
                                     interests) have an interest of 20 per 
                                     cent. or more of the voting or equity 
                                     capital or the equivalent; and 
 
"Wider Gartmore Group"               means the Gartmore Group and associated 
                                     undertakings and any other body 
                                     corporate, partnership, joint venture or 
                                     person in which the Gartmore Group and 
                                     such undertakings (aggregating their 
                                     interests) have an interest of 20 per 
                                     cent. or more of the voting or equity 
                                     capital or the equivalent. 
 
 
 
 
 
 
 
END 
 

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