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)