Holding(s) in Company

Man Group plc
23 January 2007


TR-1: notification of major interests in shares

1. Identity of the issuer or the underlying               Man Group plc
issuer of existing shares to which voting rights
are attached:

2. Reason for the notification Initial Disclosure under Transparency and
Disclosure Rules

3. Full name of person(s) subject to the               Baillie Gifford & Co
notification obligation:

4. Full name of shareholder(s) (if different
from 3.):

5. Date of the transaction (and date on which            19 January 2007
the threshold is crossed or reached if
different):

6. Date on which issuer notified:                        22 January 2007

7. Threshold(s) that is/are crossed or reached:                 5%

8. Notified details:
A: Voting rights attached to shares
Class/type of  Situation previous Resulting situation after the triggering
shares         to the Triggering  transaction
               transaction
if possible
using the ISIN Number of Number   Number   Number of voting      % of voting rights
CODE           Shares    of       of       rights
                         Voting   shares
                         Rights   Direct   Direct   Indirect     Direct    Indirect
Ordinary Share N/A       N/A                        95,942,538              5.10
GB00B16BRD58
B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial   Expiration  Exercise/           Number of voting    % of voting
instrument          date        Conversion Period/  rights that may be  rights
                                Date                acquired if the
                                                    instrument is
                                                    exercised/
                                                    converted.
       N/A
Total (A+B)
Number of voting rights                   % of voting rights
95,942,538                                       5.10

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:
In the narrative below, the figures in ( ) indicate the amount of voting rights
and the percentage held by each controlled undertaking where relevant.
Baillie Gifford & Co, a discretionary investment manager, is the parent
undertaking of an investment management group.
Its wholly-owned direct subsidiary undertaking Baillie Gifford Overseas Limited
(2,592,163; 0.1%) is also a discretionary investment manager.
Its wholly-owned direct subsidiary undertaking Baillie Gifford Life Limited
(20,403,047; 1.1%) is a life assurance company which procures discretionary
investment management services from Baillie Gifford & Co in respect of its own
account shareholdings.
Its wholly-owned indirect (via Baillie Gifford Life Limited) subsidiary
undertaking Baillie Gifford & Co Limited (3,377,376; 0.2%) is an OEIC Authorised
Corporate Director and Unit Trust Manager which has delegated its discretionary
investment management role to Baillie Gifford & Co.
Proxy Voting:

10. Name of the proxy holder:                      N/A

11. Number of voting rights proxy holder will
cease to hold:

12. Date on which proxy holder will cease to hold
voting rights:

13. Additional information:

14. Contact name:                 Barry Wakefield

15. Contact telephone number:     020 7144 1735




                      This information is provided by RNS
            The company news service from the London Stock Exchange