Security Release

Man Group plc
01 June 2007





Notification is given pursuant to Disclosure Rule 3.1.4R(1)(a) and Section 328
Companies Act 1985 (Disclosure Rule 3.1.4R(1)(b)) that on 31st May 2007 the
security interest of the Employee Trust was decreased by 500,046 shares for nil
consideration. The Employee Trust now has a security interest over 346,392
shares of 3 US cents each in Man Group plc.

Executive Directors of the Company are deemed to be interested in the 346,392
shares over which the Employee Trust holds a security interest.




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