Transaction in Own Shares

Amlin Plc
                  

Amlin plc

Purchase of own shares

Amlin plc ('Amlin') announces that it has purchased the following number of its
ordinary shares of 28.125 pence each on the London Stock Exchange via ABN AMRO
Bank NV.

-0-
*T
Date of purchase                                                       29 July 2008
Number of ordinary shares purchased:                                        450,000
Highest price paid per share                                                252.50p
Lowest price paid per share:                                                247.25p
Volume weighted average price paid per share:                               249.88p
*T

Amlin intends to hold the purchased shares in treasury.

Following the purchases of these shares, Amlin holds 9,745,000 of its ordinary
shares in treasury and has 468,828,439 ordinary shares in issue (excluding
treasury shares).

29 July 2008

Enquiries:

Charles Pender
Company Secretary
Amlin plc

020 7746 1000