Rule 8.3 - CATLIN GROUP

FORM 8.3 DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE (Rule 8.3 of the City Code on Takeovers and Mergers) 1. KEY INFORMATION Name of person dealing (Note BARCLAYS PLC 1) Company dealt in CATLIN GROUP Class of relevant security COM STK USD0.01 to which the dealings being disclosed relate (Note 2) Date of dealing 01 December 2006 2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE (a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3) Long Short Number (%) Number (%) (1) Relevant -254,709 -0.16% 333,106 0.20% securities (2) Derivatives 853,834 0.52% 493,148 0.30% (other than options) (3) Options and 1,200,000 0.73% 0 0.00% agreements to purchase/sell Total 1,799,125 1.10% 826,254 0.50% (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short Number (%) Number (%) (1) Relevant securities (2) Derivatives (other than options) (3) Options and agreements to purchase/sell Total (c) Rights to subscribe (Note 3) Class of relevant security: Details 3. DEALINGS (Note 4) (a) Purchases and sales Purchase/sale Number of securities Price per unit (GBP) Sale 7,805 5.1800 (b) Derivatives transactions (other than options) Product Long/short Number of securities Price per unit name CFD Short 8100 5.1440 CFD Short 7957 5.1582 CFD Short 12408 5.1604 CFD Short 1300 5.1785 CFD Long 3552 5.1744 CFD Long 2500 5.1800 (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product Writing, Number of Exercise Type, Expiry Option money name, selling, securities price e.g. date paid/received e.g. call purchasing to which the American, per unit option varying option European (GBP) etc. relates etc. (GBP) (ii) Exercising Product name, e.g. call Number of securities Exercise price per unit option (Note 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction Details Price per unit (if (Note 8) applicable) (Note 5) 4. OTHER INFORMATION Agreements, arrangements or understandings relating to options or derivatives Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated. Is a Supplemental Form 8 attached? (Note 9) NO Date of disclosure 04 December 2006 Contact name BARCLAYS COMPLIANCE Telephone number 0207 116 2913 If a connected EFM, name of offeree/offeror with which connected If a connected EFM, state nature of connection (Note 10)

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Barclays (BARC)
UK 100

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