UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13D/A
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. 7)

                               IPC HOLDINGS, LTD.
                                (NAME OF ISSUER)

                     COMMON SHARES, $.01 PAR VALUE PER SHARE
                         (TITLE OF CLASS OF SECURITIES)

                                   G4933P 10 1
                                 (CUSIP NUMBER)

                               KATHLEEN E. SHANNON
                       SENIOR VICE PRESIDENT AND SECRETARY
                       AMERICAN INTERNATIONAL GROUP, INC.
                                 70 PINE STREET
                               NEW YORK, NEW YORK
                                 (212) 770-7000
            (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED
                     TO RECEIVE NOTICES AND COMMUNICATIONS)

                                 August 9, 2006
             (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT)

IF THE FILING PERSON HAS PREVIOUSLY FILED A STATEMENT ON SCHEDULE 13G TO REPORT
  THE ACQUISITION WHICH IS THE SUBJECT OF THIS SCHEDULE 13D, AND IS FILING THIS
      SCHEDULE BECAUSE OF RULE 13D-1(b)(3) OR (4), CHECK THE FOLLOWING BOX:

                                       [ ]

                        (CONTINUED ON THE FOLLOWING PAGE)



- ---------------------
CUSIP NO. G4933P 10 1
- ---------------------

- --------------------------------------------------------------------------------
(1)  Name of Reporting Person/S.S. or I.R.S.
     Identification No. of Above Person

     American International Group, Inc. (I.R.S. Identification No. 13-2592361)
- --------------------------------------------------------------------------------
(2)  Check the Appropriate Box if a Member of a Group

     (a) [ ]

     (b) [ ]
- --------------------------------------------------------------------------------
(3)  SEC Use Only

- --------------------------------------------------------------------------------
(4)  Source of Funds
     WC
- --------------------------------------------------------------------------------
(5)  Check if Disclosure of Legal Proceedings is Required
     Pursuant to Item 2(e) or 2(f)
     [ ]
- --------------------------------------------------------------------------------
(6)  Citizenship or Place of Organization
     Delaware, U.S.A.
- --------------------------------------------------------------------------------
                     (7)  Sole Voting Power
                          15,397,000
                     -----------------------------------------------------------
Number of Shares     (8)  Shared Voting Power
Beneficially Owned        0
By Each Reporting    -----------------------------------------------------------
Person With          (9)  Sole Dispositive Power
                          15,397,000
                     -----------------------------------------------------------
                     (10) Shared Dispositive Power
                          0
- --------------------------------------------------------------------------------
(11) Aggregate Amount Beneficially Owned by Each Reporting Person
     15,397,000
- --------------------------------------------------------------------------------
(12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares
     [ ]
- --------------------------------------------------------------------------------
(13) Percent of Class Represented by Amount in Row (11)
     24.2%
- --------------------------------------------------------------------------------
(14) Type of Reporting Person
     HC, CO
- --------------------------------------------------------------------------------


                                       -2-


This Amendment No. 7 (this "Amendment") to the Statement on Schedule 13D filed
by American International Group, Inc. ("AIG") amends Items 2, 4, 6 and 7 of
AIG's Statement on Schedule 13D (the "Statement") originally filed by AIG on
April 9, 1996 and as amended by Amendment No. 2 filed on June 5, 1996, Amendment
No. 3 filed on December 19, 2001, Amendment No. 4 filed on December 20, 2005,
Amendment No. 5 filed on April 20, 2006 and Amendment No. 6 filed on August 8,
2006. The Statement relates to the common shares, par value $.01 per share
("Common Shares"), of IPC Holdings, Ltd., a Bermuda corporation (the "Company").
The principal executive offices of the Company are located at American
International Building, 29 Richmond Road, Pembroke HM08, Bermuda.

     Item 2. Identity and Background.

          Item 2 is hereby amended and restated as follows:

          General

          Starr International Company, Inc., a Panamanian corporation ("SICO"),
has the sole power to vote and direct the disposition of 307,911,552 shares of
common stock, par value $2.50 per share, of AIG ("AIG Shares") and the shared
power to direct the disposition of 2,202,603 AIG Shares held by Universal
Foundation, Inc., a Panamanian corporation ("Universal Foundation"). Universal
Foundation has the sole power to vote such 2,202,603 AIG Shares. C.V. Starr &
Co., Inc., a Delaware corporation ("Starr"), has the shared power to vote and
direct the disposition of 41,277,246 AIG Shares (18,644,278 of which are held by
the C.V. Starr & Co., Inc. Trust ("Starr Trust"), of which Starr is a
beneficiary). Maurice R. Greenberg, a United States citizen, has the sole power
to vote and direct the disposition of 2,902,886 AIG Shares, which may be
acquired pursuant to stock options previously granted by AIG to Mr. Greenberg as
a then officer and director of AIG. Mr. Greenberg has shared power to vote and
direct the disposition of 79,388,082 AIG Shares, 18,120,666 of which are held as
a tenant in common with Mr. Greenberg's wife, 108,663 of which are held in
family trusts of which Mr. Greenberg is a trustee, and 41,277,246 of which are
held by Starr (18,644,278 shares of which are held by the Starr Trust, for which
Starr is a beneficiary and Mr. Greenberg is a trustee), 381,507 shares of which
are held by The Maurice R. and Corrine P. Greenberg Family Foundation, Inc., a
New York not-for-profit corporation (the "Greenberg Foundation"), of which Mr.
Greenberg, his wife and family members are directors and 20,000,000 of which are
held by the Maurice R. and Corinne P. Greenberg Joint Tenancy Company, LLC, a
Florida limited liability company (the "Greenberg Joint Tenancy Company"), of
which the Maurice R. and Corinne P. Greenberg Joint Tenancy Corporation, Inc.
(the "Greenberg Joint Tenancy Corporation") is the sole and managing member. The
Greenberg Foundation has the shared power to vote and direct the disposition of
such 381,507 AIG Shares. The Greenberg Joint Tenancy Company has the shared
power to vote and direct the disposition of such 20,000,000 AIG Shares. Mr.
Greenberg owns 24.08% of the voting common stock of Starr directly. Edward E.
Matthews, a United States citizen, has the sole power to vote and direct the
disposition of 729,320 AIG Shares, 306,820 of which are held directly by Mr.
Matthews and 422,500 of which may be acquired pursuant to stock options
previously granted by AIG to Mr. Matthews as a then officer and director
of AIG. Mr. Matthews has shared power to vote and direct the disposition of
18,667,278 AIG Shares, 23,100 of which are held by Mr. Matthews' wife and
18,644,278 of which are held by the Starr Trust, for which Starr is a
beneficiary and Mr. Matthews is a trustee.

          The principal executive offices of SICO are located at Fitzwilliam
Hall, Fitzwilliam Place, Dublin 2, Ireland and it also maintains an office at
Mercury House, 101 Front Street, Hamilton HM12, Bermuda. The principal executive
offices of Starr and the Greenberg Foundation are located at 399 Park Avenue,
17th Floor, New York, New York 10022. The principal executive offices of
Universal Foundation are located at Mercury House, 101 Front Street, Hamilton HM
12, Bermuda. The principal executive offices of the Greenberg Joint Tenancy
Company is 35 Ocean Reef Drive, Key Largo, Florida 33037. The names of the
directors and executive officers ("Covered Persons") of AIG, SICO, Starr,
Universal Foundation the Greenberg Foundation and the Greenberg Joint Tenancy,
their business addresses and principal occupations, including the business
addresses and principal occupations of Messrs. Greenberg and Matthews, are set
forth in Exhibit A attached hereto, which is incorporated herein by reference in
its entirety. The business address indicated for Messrs. Greenberg and Matthews
and each other Covered Person is also the address of the principal employer of
such person. Each of the Covered Persons is a citizen of the United States,
except for Messrs. Sullivan, Tse and Walsh, who are British Subjects, Mr.
Marshall A. Cohen, who is a Canadian citizen, Dr. Jacob A. Frenkel, who is a
citizen of the State of Israel and the Republic of Poland, Mr. Osborne, Ms.
Barclay and Ms. Barnes, who are citizens of the United Kingdom and Mr. Zalamea,
Ms. Fernando and Mr. Colayco who are citizens of the Republic of the
Philippines. SICO owns 1,250,000 Common Shares of the Company. AIG disclaims any
beneficial interest in the Common Shares of the Company owned by SICO.

          Except as provided for in the next sentence, all information provided
in this Amendment (including, without limitation, in this Item 2 and Exhibit A
to this Amendment) with respect to Messrs. Greenberg and Matthews, SICO, Starr,
Universal Foundation, the Greenberg Foundation and the Greenberg Joint Tenancy
and their respective directors and executive officers is provided based solely
on the information set forth in the most recent amendment to Schedule 13D
relating to AIG Shares filed on May 26, 2006 on behalf of Messrs. Greenberg and
Matthews, SICO, Starr, Universal Foundation, the Greenberg Foundation and the
Greenberg Joint Tenancy Company. This information has not been updated to
reflect changes in the ownership by such parties of AIG Shares that are
disclosed in filings made by one or more of such parties under Section 16 of the
Securities Exchange Act of 1934, as amended ("Exchange Act"). The information
provided in this Amendment with respect to the ownership of, and transactions
in, the Common Shares of the Company by Messrs. Greenberg and Matthews, SICO,
Starr, Universal Foundation, the Greenberg Foundation and the Greenberg Joint
Tenancy Company and their respective directors and executive officers is
provided based solely on publicly available information. In each case, such
information may not be accurate or complete and AIG takes no responsibility
therefor and makes no representation to its accuracy or completeness as of the
date hereof or any subsequent date.

          2006 Regulatory Settlements

          In February 2006, AIG reached a final settlement with the Securities
and Exchange Commission ("SEC"), the United States Department of Justice
("DOJ"), the Office of the New York Attorney General ("NYAG") and the New York
State Department of Insurance ("DOI"). The settlements resolved outstanding
litigation filed by the SEC, NYAG and DOI against AIG and concluded negotiations
with these authorities and the DOJ in connection with the accounting, financial
reporting and insurance brokerage practices of AIG and its subsidiaries, as well
as claims relating to the underpayment of certain workers compensation premium
taxes and other assessments.


                                      -3-


          AIG, without admitting or denying the allegations in the SEC
complaint, consented to the issuance of a final judgment on February 9, 2006:
(a) permanently restraining and enjoining AIG from violating Section 17(a) of
the Securities Act of 1933, as amended ("Securities Act"), and Sections 10(b),
13(a), 13(b)(2) and 13(b)(5) and Rules 10b-5, 12b-20, 13a-1, 13a-13 and 13b2-1
of the Exchange; (b) ordering AIG to pay disgorgement in the amount of $700
million; and (c) ordering AIG to pay a civil penalty in the amount of $100
million. These amounts have been paid into a fund under the supervision of the
SEC to be available to resolve claims asserted in various civil proceedings,
including shareholder lawsuits.

          In February 2006, AIG and the DOJ entered into a letter agreement. In
the letter agreement, the DOJ notified AIG that in its view, AIG, acting through
some of its employees, violated federal criminal law in connection with
misstatements in periodic financial reports that AIG filed with the SEC between
2000 and 2004 relating to certain transactions. The settlement with the DOJ
consists of, among other things, AIG's cooperating with the DOJ in the DOJ's
ongoing criminal investigation, accepting responsibility for certain of its
actions and those of its employees relating to these transactions and paying $25
million.

          Effective February 9, 2006, AIG entered into agreements with the NYAG
and the DOI, settling claims under New York's Martin Act and insurance laws,
among other provisions, which were originally brought by the NYAG and the DOI in
a civil complaint filed on May 26, 2005. Under the agreements, $375 million was
paid into a fund under the supervision of the NYAG and the DOI to be available
principally to pay certain AIG insureds who purchased excess casualty policies
through Marsh & McLennan Companies, Inc. or Marsh Inc. In addition,
approximately $343 million will be used to compensate participating state funds
in connection with the underpayment of certain workers compensation premium
taxes and other assessments. In addition, AIG paid $100 million as a fine to the
State of New York.

          As part of these settlements, AIG has agreed to retain for a period of
three years an independent consultant who will conduct a review that will
include the adequacy of AIG's internal controls over financial reporting and the
remediation plan that AIG has implemented as a result of its own internal
review.

          PNC Settlement

          In November 2004, AIG and AIG Financial Products Corp. ("AIGFP"), a
subsidiary of AIG, reached a final settlement with the SEC, the Fraud Section of
the DOJ and the United States Attorney for the Southern District of Indiana with
respect to issues arising from certain structured transactions entered into with
Brightpoint, Inc. and The PNC Financial Services Group, Inc. ("PNC"), the
marketing of transactions similar to the PNC transactions and related matters.

          AIG, without admitting or denying the allegations in the SEC
complaint, consented to the issuance of a final judgment permanently enjoining
it and its employees and related persons from violating certain provisions of
the Exchange Act, Exchange Act Rules and the Securities Act, ordering
disgorgement of fees it received from the PNC transactions and providing for AIG
to establish a transaction review committee to review the appropriateness of
certain future transactions and to retain an independent consultant to examine
certain transactions entered into between 2000 and 2004 and review the policies
and procedures of the transaction review committee.

          The settlement with the DOJ consists of separate agreements with AIG
and AIGFP and a complaint filed against, and deferred prosecution agreement
with, AIGFP PAGIC Equity Holding Corp. ("AIGFP PAGIC"), a wholly-owned
subsidiary of AIGFP. Under the terms of the settlement, AIGFP paid a monetary
penalty of $80 million. On January 17, 2006, the court approved an order
dismissing the complaint with prejudice. The obligations of AIG, AIGFP and AIGFP
PAGIC under the DOJ agreements relate principally to cooperating with the DOJ
and other federal agencies in connection with their related investigations.

     Item 4. Purpose of Transaction.

          Item 4 is hereby amended to add the following:

On August 9, 2006, AIG and the Company announced that AIG is offering to sell
13.397 million of the Common Shares it owns at $27.00 per share in an
underwritten public offering. The offering is expected to close on August 15,
2006. AIG has granted the underwriters an option to purchase up to 2 million of
the Common Shares it owns at $27.00 per share to cover over-allotments, if any.
AIG also informed the Company that it intends to continue to provide the Company
with investment management, administrative and other services and that Mr. S.
George Cubbon, President and Chief Executive Officer of American International
Company, Ltd., intends to remain on the Company's Board of Directors.

Giving effect to such sale (whether or not the over-allotments are fully
exercised), AIG expects that it will have a beneficial ownership of less than
five percent of the Common Shares, and accordingly it will no longer be subject
to the requirement to file a Schedule 13D.

On August 9, 2006, AIG and the Company issued a press release announcing AIG's
offering of common shares in an underwriting public offering. A copy of that
press release is filed herewith as Exhibit B and incorporated herein by
reference.

On August 9, 2006, AIG and the Company entered into an Underwriting Agreement
(the "Underwriting Agreement") with Citigroup Global Markets, Inc.
("Citigroup"), as representative of the several underwriters listed on the
schedule thereto (the "Underwriters"). Pursuant to the terms of the Underwriting
Agreement, AIG agreed to sell to the Underwriters (a) 13.397 million Common
Shares at a price per share of $27 per share, and (b) 2 million Common Shares,
in connection with the Underwriters' over-allotment option at a price per share
of $27.

In addition, pursuant to the terms of the Underwriting Agreement, AIG agreed,
for a period of 60 days from the date of the Final Prospectus (as defined in the
Underwriting Agreement), without the prior written consent of Citigroup, not to
offer, sell, contract to sell, pledge or otherwise dispose of, (or enter into
any transaction which is designed to, or might reasonably be expected to, result
in the disposition (whether by actual disposition or effective economic
disposition due to cash settlement or otherwise) by AIG or its affiliates or any
person in privity with AIG or any of its affiliates) directly or indirectly, or
file (or participate in the filing of) a registration statement with the
Securities and Exchange Commission in respect of, or establish or increase a put
equivalent position or liquidate or decrease a call equivalent position within
the meaning of Section 16 of the Securities Exchange Act of 1934, as amended,
and the rules and regulations of the Securities and Exchange Commission
promulgated thereunder, with respect to, any Common Shares or any securities
convertible into or exercisable or exchangeable for, Common Shares; or publicly
announce an intention to effect any such transaction other than Common Shares
disposed of as bona fide gifts approved by Citigroup. Notwithstanding the
foregoing, AIG agreed that if (x) during the last 17 days of the restricted
period the Company issues an earnings release or material news or a material
event relating to the Company occurs, or (y) prior to the expiration of the
restricted period, the Company announces that it will release earnings results
during the 16-day period beginning on the last day of the restricted period,
these restrictions will continue to apply until the expiration of the 18-day
period beginning on the issuance of the earnings release or the occurrence of
the material news or material event.

The description of the material terms of the Underwriting Agreement set forth
above is qualified in its entirety to the full text of the Underwriting
Agreement, which is filed as Exhibit C and is incorporated herein by reference.

The manner, timing and execution of any sale of any or all of the Common Shares
would be in AIG's discretion and subject to market conditions and may not occur.
Notwithstanding the foregoing, AIG may determine to change its investment intent
with respect to the Company at any time in the future. In reaching any
conclusion as to its future course of action, AIG may take into consideration
various factors, such as the Company's business and prospects, other
developments concerning the Company, other business opportunities available to
AIG, developments with respect to the business of AIG, and general economic and
stock market conditions, including, but not limited to, the market price of the
Common Shares and of its own stock. AIG reserves the right, based on all
relevant factors, to acquire additional Common Shares in the open market or in
privately negotiated transactions, to dispose of all or a portion of its
holdings of Common Shares, or to change its intention with respect to any or all
of the matters referred to in this Item.

ITEM 6. Contracts, Arrangements, Understandings or Relationships with respect to
Securities of the Issuer

The responses set forth in Item 4 of this Amendment with respect to the
Underwriting Agreement are incorporated herein by reference in their entirety.


                                      -4-


     Item 7. Materials to be Filed as Exhibits.

          (A) List of the Directors and Executive Officers of American
International Group, Inc., Starr International Company, Inc., C.V. Starr & Co.,
Inc., Universal Foundation, Inc., The Maurice R. and Corrine P. Greenberg Family
Foundation, Inc. and The Maurice R. and Corrine P. Greenberg Joint Tenancy
Corporation, Inc. and their business addresses and principal occupations.

          (B) Joint Press Release of American International Group, Inc. and IPC
Holdings, Ltd. dated August 9, 2006.

          (C) Underwriting Agreement, dated as of August 9, 2006, by and among
American International Group, Inc., IPC Holdings, Ltd. and Citigroup Global
Markets Inc., as representative to the several underwriters listed on the
schedule thereto.


                                      -5-




                                    SIGNATURE

          After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this Statement is true, complete and
correct.

Dated: August 10, 2006

                                      AMERICAN INTERNATIONAL GROUP, INC.


                                      By: /s/ Kathleen E. Shannon
                                          --------------------------------------
                                      Name: Kathleen E. Shannon
                                      Title: Senior Vice President and Secretary


                                      -6-



                                  EXHIBIT INDEX

Exhibit No. Description Location - ----------- ----------------------------------------- ---------------------- A. List of the Directors and Executive Filed herewith. Officers of American International Group, Inc., Starr International Company, Inc. C.V. Starr & Co., Inc., Universal Foundation, Inc., The Maurice R. and Corrine P. Greenberg Family Foundation, Inc. and The Maurice R. and Corrine P. Greenberg Joint Tenancy Corporation, Inc. and their business addresses and principal occupations. B. Press Release of American International Filed herewith. Group, Inc. and IPC Holdings, Ltd. dated August 9, 2006 C. Underwriting Agreement, dated as of August 9, Filed herewith. 2006, by and among American International Group, Inc., IPC Holdings, Ltd. and Citigroup Global Markets Inc., as representative to the several underwriters listed on the schedule thereto.
-7-

                                                                               .
                                                                               .
                                                                               .

                                    EXHIBIT A

     DIRECTORS AND EXECUTIVE OFFICERS OF AMERICAN INTERNATIONAL GROUP, INC.

                                                                             
Pei-yuan Chia          Director           Retired Vice Chairman, Citicorp and         c/o 70 Pine Street, New York, New York 10270
                                          Citibank, N.A.

Marshall A. Cohen      Director           Counsel, Cassels, Brock & Blackwell         Cassels, Brock & Blackwell, 40 King Street
                                                                                      West, 20th Floor, Toronto, Ontario M5H 3C2

Martin S. Feldstein    Director           Professor of Economics, Harvard             National Bureau of Economic Research, Inc.,
                                          University; President and CEO, National     1050 Massachusetts Avenue, Cambridge,
                                          Bureau of Economic Research                 Massachusetts 02138

Ellen V. Futter        Director           President, American Museum of Natural       American Museum of Natural History, Central
                                          History                                     Park West at 79th Street, New York, New York
                                                                                      10024

Steven L. Hammerman    Director           Retired; Former Deputy Commissioner for     c/o 70 Pine Street, New York, New York 10270
                                          Legal Matters for the New York Police
                                          Department and Vice Chairman, Merrill
                                          Lynch & Co., Inc.

Richard C. Holbrooke   Director           Vice Chairman, Perseus LLC                  Perseus LLC, 1235 Avenue of the Americas,
                                                                                      New York, New York, 10019

Fred H. Langhammer     Director           Chairman, Global Affairs and Former Chief   767 Fifth Avenue, New York, New York 10153
                                          Executive Officer, The Estee Lauder
                                          Companies Inc.

George L. Miles        Director           President and Chief Executive Officer,      4802 Fifth Avenue, Pittsburgh, Pennsylvania
                                          WQED Multimedia                             15213

James F. Orr III       Director           Chairman of the Board of Trustees, The      420 Fifth Avenue, New York, New York 10018
                                          Rockefeller Foundation

Morris W. Offit        Director           Co-Chief Executive Officer, Offit Hall      65 East 55th Street, New York, New York 10022
                                          Capital Management LLC

Martin J. Sullivan     Director and       President and Chief Executive Officer       70 Pine Street, New York, New York 10270
                       Executive Officer

Michael H. Sutton      Director           Consultant; Former Chief Accountant of      c/o 70 Pine Street, New York, New York 10270
                                          the United States Securities and Exchange
                                          Commission

Edmund S.W. Tse        Director and       Senior Vice Chairman - Life Insurance       American International Assurance Co., Ltd.,
                       Executive Officer                                              1 Stubbs Road, Hong Kong

Robert B. Willumstad   Director           Former President and Chief Operating        9 West 57th Street, New York, New York 10019
                                          Officer, Citigroup Inc.

Frank G. Zarb          Director           Chairman, Frank Zarb Associates, LLC;       375 Park Avenue, New York, New York 10152
                                          Senior Advisor, Hellman & Friedman LLC

Dr. Jacob A. Frenkel   Executive Officer  Vice Chairman - Global Economic Strategies  70 Pine Street, New York, New York 10270
8 Frank G. Wisner Executive Officer Vice Chairman - External Affairs 70 Pine Street, New York, New York 10270 Steven J. Bensinger Executive Officer Executive Vice President & Chief 70 Pine Street, New York, New York 10270 Financial Officer Rodney O. Martin, Jr. Executive Officer Executive Vice President - Life Insurance 2929 Allen Parkway, Houston, Texas 77019 Kristian P. Moor Executive Officer Executive Vice President - Domestic 70 Pine Street, New York, New York 10270 General Insurance Win J. Neuger Executive Officer Executive Vice President & Chief 70 Pine Street, New York, New York 10270 Investment Officer R. Kendall Nottingham Executive Officer Executive Vice President - Life Insurance 70 Pine Street, New York, New York 10270 Robert B. Sandler Executive Officer Executive Vice President - Domestic 70 Pine Street, New York, New York 10270 Personal Lines Nicholas C. Walsh Executive Officer Executive Vice President - Foreign 70 Pine Street, New York, New York 10270 General Insurance Jay S. Wintrob Executive Officer Executive Vice President - Retirement AIG Retirement Services, Inc., 1999 Avenue Services of the Stars, Los Angeles, California 90067 William N. Dooley Executive Director Senior Vice President - Financial Services 70 Pine Street, New York, New York 10270 Axel I. Freudmann Executive Officer Senior Vice President - Human Resources 70 Pine Street, New York, New York 10270 David L. Herzog Executive Officer Senior Vice President & Comptroller 70 Pine Street, New York, New York 10270 Robert E. Lewis Executive Officer Senior Vice President & Chief Risk Officer 70 Pine Street, New York, New York 10270 Michael E. Roemer Executive Officer Senior Vice President & Director of 70 Pine Street, New York, New York 10270 Internal Audit Brian T. Schreiber Executive Officer Senior Vice President - Strategic Planning 70 Pine Street, New York, New York 10270 Richard W. Scott Executive Officer Senior Vice President - Investments 70 Pine Street, New York, New York 10270 Kathleen E. Shannon Executive Officer Senior Vice President and Secretary 70 Pine Street, New York, New York 10270 Keith Duckett Executive Officer Vice President - Administration 70 Pine Street, New York, New York 10270 Robert A. Gender Executive Officer Vice President & Treasurer 70 Pine Street, New York, New York 10270 Charlene M. Hamrah Executive Officer Vice President & Director of Investor 70 Pine Street, New York, New York 10270 Relations Eric N. Litzky Executive Officer Vice President - Corporate Governance 70 Pine Street, New York, New York 10270 Christopher D. Winans Executive Officer Vice President - Media Relations 70 Pine Street, New York, New York 10270
9 DIRECTORS AND EXECUTIVE OFFICERS OF STARR INTERNATIONAL COMPANY, INC. Maurice R. Greenberg Chairman of the Chairman of the Board and director, Starr 399 Park Avenue, 17th Floor, New York, New Board and International Company, Inc. and C.V. Starr York 10022 Director & Co., Inc.; Chief Executive Officer, C.V. Starr & Co., Inc.; trustee of C.V. Starr & Co., Inc. Trust; member, director and Chairman of the Board, The Starr Foundation. Edward E. Matthews Managing Director Managing Director and director, Starr 399 Park Avenue, 17th Floor, New York, New International Company, Inc.; director and York 10022 President, C.V. Starr & Co., Inc.; trustee, C.V. Starr & Co., Inc. Trust; member and director, The Starr Foundation. Houghton Freeman Director President, Freeman Foundation 499 Taber Hill Road, Stowe, VT 05672 Howard I. Smith Director Vice Chairman-Finance and Secretary, C.V. 399 Park Avenue, 17th Floor, New York, NY Starr & Co., Inc. 10022 John J. Roberts Director Senior Advisor, American International Concordia Farms P.O. Box 703, Easton, MD Group, Inc. 21601 Ernest Stempel Director Senior Advisor and Honorary Director, 70 Pine Street, New York, NY 10270 American International Group, Inc. Cesar Zalamea Director President and Chief Executive Officer, Suite 1405-7, Two Exchange Square, 8 Starr International Company (Asia), Connaught Place, Central, Hong Kong Limited
DIRECTORS AND EXECUTIVE OFFICERS OF C.V. STARR & CO., INC. Maurice R. Greenberg Chairman of the (See above) (See above) Board, director and Chief Executive Officer Howard I. Smith Vice Chairman- (See above) (See above) Finance and Secretary and Director Edward E. Matthews President and (See above) (See above) Director J. Christopher Director Chairman of the Board of Directors, J.C. 717 Fifth Avenue, 26th Floor, New Flowers Flowers and Co. LLC York, NY 10022 Houghton Freeman Director (See above) (See above) John J. Roberts Director (See above) (See above) Bertil P-H Lundquist Director Executive, Vice President and General 399 Park Avenue, 17th Floor, New Counsel, C.V. Starr & Co., Inc. York, New York 10022
10 DIRECTORS AND EXECUTIVE OFFICERS OF UNIVERSAL FOUNDATION, INC. Stuart Osborne President and President of Universal Foundation Mercury House Director 101 Front Street Hamilton HM 12, Bermuda Eligia G. Fernando Director Retired Mercury House 101 Front Street Hamilton HM 12, Bermuda Cesar C. Zalamea Director (See above) Mercury House 101 Front Street Hamilton HM 12, Bermuda Aloysius B. Colayco Director Managing Director, Argosy Partners Argosy Partners 8th Floor, Pacific Star Building Makati City, Philippines Jennifer Barclay Secretary Secretary of Universal Foundation Mercury House 101 Front Street Hamilton HM 12, Bermuda Margaret Barnes Treasurer Treasurer of Universal Foundation Fitzwilliam Hall Fitzwilliam Place Dublin 2, Ireland
DIRECTORS AND EXECUTIVE OFFICERS OF THE MAURICE R. AND CORRINE P. GREENBERG FAMILY FOUNDATION, INC. Maurice R. Greenberg Chairman and (See above) (See above) Director Corrine P. Greenberg President and President and Director, Greenberg 399 Park Avenue, 17th Floor Director Foundation New York, New York 10022 Jeffrey W. Greenberg Vice President Vice President and Director, 399 Park Avenue, 17th Floor and Director Greenberg Foundation New York, New York 10022 Evan G. Greenberg Vice President President and Chief Executive 399 Park Avenue, 17th Floor and Director Officer, ACE Limited New York, New York 10022 Lawrence S. Greenberg Vice President Privatent Equity Investor 399 Park Avenue, 17th Floor and Director New York, New York 10022 Shake Nahapetian Treasurer Administrative Assistant, CV Starr 399 Park Avenue, 17th Floor New York, New York 10022
11 DIRECTOR AND EXECUTIVE OFFICER OF THE MAURICE R. AND CORRINE P. GREENBERG JOINT TENANCY CORPORATION, INC. Maurice R. Greenberg Chairman, CEO, (See above) (See above) (See above) President, Treasurer, Secretary and Director
12

                                                                       EXHIBIT B

AIG Prices Offering to Sell Its Ownership of IPC Holdings Common Shares

      NEW YORK, and PEMBROKE, Bermuda, Aug. 9, 2006. American International
Group, Inc. (NYSE: AIG) and IPC Holdings, Ltd. (Nasdaq: IPCR) announced that AIG
has agreed to sell 13.397 million IPC common shares at $27 per share in an
underwritten public offering. The offering is expected to close on August 15,
2006. AIG has granted the underwriters an option to purchase up to 2 million
shares to cover over-allotments, if any. Upon completion of the transaction, if
the underwriters exercise their over-allotment option in full, it is anticipated
that AIG will not own any shares of IPC's common stock. IPC will not receive any
proceeds from the sale of the shares.

      The sole bookrunner for this offering is Citigroup Corporate & Investment
Banking, and Morgan Stanley & Co. Incorporated is a joint-lead manager.
Interested parties may obtain a written copy of the prospectus relating to this
offering from Citigroup Corporate & Investment Banking, Brooklyn Army Terminal,
140 58th Street, 8th floor, Brooklyn, New York, 11220, Attention: Prospectus
Department; telephone: 1-877-858-5407.

      This communication shall not constitute an offer to sell or the
solicitation of an offer to buy these securities, nor shall there be any sale of
these securities in any state in which such offer, solicitation or sale would be
unlawful prior to registration or qualification under the securities laws of any
such state.

      About AIG:

      American International Group, Inc. (AIG), world leaders in insurance and
financial services, is the leading international insurance organization with
operations in more than 130 countries and jurisdictions. AIG companies serve
commercial, institutional and individual customers through the most extensive
worldwide property-casualty and life insurance networks of any insurer. In
addition, AIG companies are leading providers of retirement services, financial
services and asset management around the world. AIG's common stock is listed on
the New York Stock Exchange, as well as the stock exchanges in London, Paris,
Switzerland and Tokyo.

      About IPC:

      IPC Holdings, Ltd., through its wholly-owned subsidiary IPCRe Limited,
provides property catastrophe reinsurance and, to a limited extent, aviation,
property-per-risk excess and other short-tail reinsurance on a worldwide basis.

    CONTACT:    For AIG                For IPC Holdings, Ltd.
                Joe Norton             James Bryce or John Weale
                212-770-3144           441-298-5100




                                                                       EXHIBIT C

                                                               EXECUTION VERSION

                                                               August 9, 2006

Citigroup Global Markets Inc.
388 Greenwich Street
New York, New York 10013
Dear Sirs and Mesdames:

            American International Group, Inc., a Delaware corporation (the
"SELLING SHAREHOLDER"), proposes to sell to the several Underwriters named in
Schedule I hereto (the "UNDERWRITERS") for whom you are acting as representative
(the "REPRESENTATIVE") 13,397,000 common shares, $.01 par value per share (the
"FIRM SHARES") of IPC Holdings, Ltd. (the "COMPANY"). The Selling Shareholder
also proposes to sell to the several Underwriters not more than an additional
2,000,000 of the Company's common shares, $.01 par value per share (the
"ADDITIONAL SHARES"), if and to the extent that you, as the Representative of
the offering, shall have determined to exercise, on behalf of the Underwriters,
the right to purchase such common shares granted to the Underwriters in Section
3 hereof. The Firm Shares and the Additional Shares are hereinafter collectively
referred to as the "SHARES." The common shares, $.01 par value per share, of the
Company generally are hereinafter referred to as the "COMMON STOCK." The use of
the neuter in this Agreement shall include the feminine and masculine wherever
appropriate. Any reference herein to the Registration Statement, the Basic
Prospectus, any Preliminary Prospectus or the Final Prospectus shall be deemed
to refer to and include the documents incorporated by reference therein pursuant
to Item 12 of Form S-3 which were filed under the Exchange Act on or before the
Effective Date of the Registration Statement or the issue date of the Basic
Prospectus, any Preliminary Prospectus or the Final Prospectus, as the case may
be; and any reference herein to the terms "amend," "amendment" or "supplement"
with respect to the Registration Statement, the Basic Prospectus, any
Preliminary Prospectus or the Final Prospectus shall be deemed to refer to and
include the filing of any document under the Exchange Act after the Effective
Date of the Registration Statement or the issue date of the Basic Prospectus,
any Preliminary Prospectus or the Final Prospectus, as the case may be, deemed
to be incorporated therein by reference. Certain terms used herein are defined
in Section 20 hereof.

            1. Representations and Warranties of the Company. The Company
represents and warrants to and agrees with each of the Underwriters that:

            (a) The Company meets the requirements for the use of Form S-3 under
      the Securities Act and has prepared and filed with the Commission an
      automatic shelf registration statement, as defined in Rule 405 on Form
      S-3, including a related Basic Prospectus, for registration under the Act
      of the offering


                                      -1-

      and sale of the Shares. Such Registration Statement, including any
      amendments thereto filed prior to the Execution Time, became effective
      upon filing. The Company will file with the Commission a final prospectus
      supplement relating to the Shares in accordance with Rule 424(b). As
      filed, such final prospectus supplement shall contain all information
      required by the Act and the rules thereunder, and, except to the extent
      the Representative shall agree in writing to a modification, shall be in
      all substantive respects in the form furnished to you prior to the
      Execution Time or, to the extent not completed at the Execution Time,
      shall contain only such specific additional information and other changes
      (beyond that contained in the Basic Prospectus and any Preliminary
      Prospectus) as the Company has advised you, prior to the Execution Time,
      will be included or made therein. The Registration Statement, at the
      Execution Time, meets the requirements set forth in Rule 415(a)(1)(x).

            (b) On each Effective Date, the Registration Statement did, and when
      the Final Prospectus is first filed in accordance with Rule 424(b) and on
      the Closing Date (as defined herein) and on any date on which Additional
      Shares are purchased, if such date is not the Closing Date (a "settlement
      date"), the Final Prospectus (and any supplement thereto) will, comply in
      all material respects with the applicable requirements of the Act and the
      Exchange Act and the respective rules thereunder; on each Effective Date
      and at the Execution Time, the Registration Statement did not and will not
      contain any untrue statement of a material fact or omit to state any
      material fact required to be stated therein or necessary in order to make
      the statements therein not misleading; and on the date of any filing
      pursuant to Rule 424(b) and on the Closing Date and any settlement date,
      the Final Prospectus (together with any supplement thereto) will not
      include any untrue statement of a material fact or omit to state a
      material fact necessary in order to make the statements therein, in the
      light of the circumstances under which they were made, not misleading;
      provided, however, that the Company makes no representations or warranties
      as to the information contained in or omitted from the Registration
      Statement or the Final Prospectus (or any supplement thereto) in reliance
      upon and in conformity with information furnished in writing to the
      Company by or on behalf of any Underwriter through the Representative
      specifically for inclusion in the Registration Statement or the Final
      Prospectus or as to the Selling Shareholder Information (or any supplement
      thereto), it being understood and agreed that the only such information
      furnished by or on behalf of any Underwriter consists of the information
      described as such in Section 8 hereof.

            (c) The Disclosure Package (as defined in Section 20 hereof) and the
      price to the public, the number of Firm Shares and the number of
      Additional Shares to be included on the cover page of the Final
      Prospectus, when taken together as a whole, does not contain any untrue
      statement of a material fact or omit to state any material fact necessary
      in order to make the statements therein, in the light of the circumstances
      under which they were made, not misleading. The preceding sentence does
      not apply to statements in or omissions from the Disclosure Package


                                      -2-

      regarding the Selling Shareholder Information or based upon and in
      conformity with written information furnished to the Company by any
      Underwriter through the Representative specifically for use therein, it
      being understood and agreed that the only such information furnished by or
      on behalf of any Underwriter consists of the information described as such
      in Section 8 hereof.

            (d) (i) At the time of filing the Registration Statement, (ii) at
      the time of the most recent amendment thereto for the purposes of
      complying with Section 10(a)(3) of the Securities Act (whether such
      amendment was by post-effective amendment, incorporated report filed
      pursuant to Sections 13 or 15(d) of the Exchange Act or form of
      prospectus), (iii) at the time the Company or any person acting on its
      behalf (within the meaning, for this clause only, of Rule 163(c)) made any
      offer relating to the Shares in reliance on the exemption in Rule 163, and
      (iv) at the Execution Time (with such date being used as the determination
      date for purposes of this clause (iv)), the Company was or is (as the case
      may be) a "well-known seasoned issuer" as defined in Rule 405. The Company
      agrees to pay the fees required by the Commission relating to the Shares
      within the time required by Rule 456(b)(1) without regard to the proviso
      therein and otherwise in accordance with Rules 456(b) and 457(r) or Rule
      457(p) (it being understood such fees are reimbursable by the Selling
      Shareholder).

            (e) (i) At the earliest time after the filing of the Registration
      Statement that the Company or another offering participant made a bona
      fide offer (within the meaning of Rule 164(h)(2)) of the Shares and (ii)
      as of the Execution Time (with such date being used as the determination
      date for purposes of this clause (ii), the Company was not and is not an
      Ineligible Issuer (as defined in Rule 405), without taking account of any
      determination by the Commission pursuant to Rule 405 that it is not
      necessary that the Company be considered an Ineligible Issuer.

            (f) The Company has been duly incorporated, is validly existing as
      an exempted company in good standing under the laws of Bermuda, has the
      corporate power and authority to own its property and to conduct its
      business as described in the Disclosure Package and the Final Prospectus
      and is duly qualified to transact business and is in good standing in each
      jurisdiction in which the conduct of its business or its ownership or
      leasing of property requires such qualification, except to the extent that
      the failure to be so qualified or be in good standing would not have a
      material adverse effect on the Company and the Subsidiaries (as defined
      below), taken as a whole.

            (g) IPCRe Limited (formerly International Property Catastrophe
      Reinsurance Company, Ltd.), a Bermuda company ("IPCRE"), has been duly
      incorporated, is validly existing as an exempted company in good standing
      under the laws of Bermuda, has the corporate power and authority to own
      its property and to conduct its business as described in the Disclosure
      Package and the Final Prospectus and is duly qualified to transact
      business and is in good standing in each


                                      -3-

      jurisdiction in which the conduct of its business or its ownership or
      leasing of property requires such qualification, except to the extent that
      the failure to be so qualified or be in good standing would not have a
      material adverse effect on the Company and the Subsidiaries, taken as a
      whole; all of the issued shares of capital of IPCRe have been duly and
      validly authorized and issued, are fully paid and non-assessable and are
      owned directly by the Company, free and clear of all liens, encumbrances,
      equities or claims.

            (h) IPCRe Europe Limited, an Irish company ("IPCRE EUROPE" and,
      together with IPCRe, the "DESIGNATED SUBSIDIARIES"), has been duly
      incorporated, is validly existing as a company in good standing under the
      laws of Ireland, has the corporate power and authority to own its property
      and to conduct its business as described in the Disclosure Package and the
      Final Prospectus and is duly qualified to transact business and is in good
      standing in each jurisdiction in which the conduct of its business or its
      ownership or leasing of property requires such qualification, except to
      the extent that the failure to be so qualified or be in good standing
      would not have a material adverse effect on the Company and the
      Subsidiaries, taken as a whole; all of the issued shares of capital of
      IPCRe Europe have been fully paid and non-assessable and are owned
      directly by IPCRe, free and clear of all liens, encumbrances, equities or
      claims.

            (i) IPCRe Underwriting Services Limited, a Bermuda company ("IPCUSL"
      and, together with IPCRe and IPCRe Europe, the "SUBSIDIARIES"), has been
      duly incorporated, is validly existing as a company in good standing under
      the laws of Bermuda, has the corporate power and authority to own its
      property and to conduct its business as described in the Disclosure
      Package and the Final Prospectus and is duly qualified to transact
      business and is in good standing in each jurisdiction in which the conduct
      of its business or its ownership or leasing of property requires such
      qualification, except to the extent that the failure to be so qualified or
      be in good standing would not have a material adverse effect on the
      Company and the Subsidiaries, taken as a whole; all of the issued shares
      of capital of IPCUSL have been duly and validly authorized and issued, are
      fully paid and non-assessable and are owned directly by the Company, free
      and clear of all liens, encumbrances, equities or claims.

            (j) Except as described in the Disclosure Package and the Final
      Prospectus, there are no material restrictions, whether direct or
      indirect, under any provision of applicable law, under the memorandum of
      association or bye-laws or other organizational document of any subsidiary
      of the Company, under any agreement or other instrument binding upon the
      Company or IPCRe or any of their properties, or under any judgment, order
      or decree of any governmental body, agency or court having jurisdiction
      over the Company or IPCRe, on the ability of any subsidiary of the
      Company: (i) to pay any dividends to the Company; (ii) to make any other
      distribution on such subsidiary's capital stock; (iii) to repay to the
      Company any loans or advances to such subsidiary from the Company; or (iv)
      to


                                      -4-

      transfer any of such subsidiary's property or assets to the Company or any
      other subsidiary of the Company.

            (k) The Company and the Designated Subsidiaries do not own any real
      property. Each of the Company and IPCRe has good and marketable title to
      all personal property owned by them, in each case free and clear of all
      liens, encumbrances and defects except such as are described in the
      Disclosure Package and the Final Prospectus or such as do not materially
      affect the value of such property and do not materially interfere with the
      use made and proposed to be made of such property by the Company and
      IPCRe; and any real property and buildings held under lease by the Company
      and IPCRe are held by them under valid, subsisting and enforceable leases
      with such exceptions as are not material and do not materially interfere
      with the use made and proposed to be made of such property and buildings
      by the Company and IPCRe.

            (l) This Agreement has been duly authorized, executed and delivered
      by the Company.

            (m) Neither the Company nor IPCRe is in violation of its memorandum
      of association or bye-laws or other organizational document or in default
      in the performance or observance of any obligation, agreement, covenant or
      condition contained in any material contract, lease or other agreement or
      instrument to which it or either of them is a party or by which it or
      either of them or their properties may be bound.

            (n) The authorized capital of the Company conforms as to legal
      matters to the description thereof contained in the Disclosure Package and
      the Final Prospectus.

            (o) The Shares have been duly authorized and are validly issued,
      fully paid and non-assessable.

            (p) The form of certificates for the Shares conforms to the
      requirements of the laws of Bermuda and the Nasdaq Global Select Market;
      and the Shares have been approved for quotation on the Nasdaq Global
      Select Market.

            (q) The consolidated financial statements of the Company and its
      consolidated subsidiaries (together with related notes) included in the
      Registration Statement, the Disclosure Package and Final Prospectus comply
      as to form in all material respects with the requirements of the
      Securities Act and the applicable rules and regulations of the Commission
      thereunder and present fairly the financial position of the Company as at
      the dates indicated and the results of its operations and the statements
      of its cash flows for the periods specified; such financial statements
      have been prepared in conformity with United States generally accepted
      accounting principles applied on a consistent basis during the periods
      involved, except as disclosed therein; and the supporting schedules
      included in the Disclosure


                                      -5-

      Package, the Final Prospectus and the Registration Statement present
      fairly the information required to be stated therein. The consolidated
      balance sheets of the Company and its subsidiaries as of December 31,
      2005, 2004 and 2003 and the related consolidated statements of income and
      comprehensive income, changes in shareholders' equity and cash flows for
      the years ended December 31, 2005, 2004 and 2003 have been audited by
      KPMG. The selected financial data set forth under the caption "Selected
      Consolidated Financial Data" in the Disclosure Package, the Final
      Prospectus and Registration Statement fairly present, on the basis stated
      in the Disclosure Package, the Final Prospectus and the Registration
      Statement, the information included therein. All statutory financial
      statements of IPCRe where required to be prepared in accordance with the
      insurance laws of Bermuda and the rules and regulations promulgated
      thereunder, from which certain ratios and other statistical data contained
      in the Disclosure Package, the Final Prospectus and the Registration
      Statement have been derived, have for each relevant period been prepared
      in conformity in all material respects with the requirements of such
      insurance laws and such rules and regulations and present fairly the
      information purported to be shown. Statutory financial statements of IPCRe
      and IPCRe Europe are not required to be prepared pursuant to the insurance
      laws of any jurisdiction other than Bermuda and Ireland, respectively.

            (r) The execution and delivery by the Company of, and the
      performance by the Company of its obligations under, this Agreement will
      not contravene any provision of: (i) applicable law, (ii) the memorandum
      of association or bye-laws of the Company or either of the Designated
      Subsidiaries, (iii) any agreement or other instrument binding upon the
      Company or IPCRe except to the extent such contravention would not have a
      material adverse effect on (a) the Company and the Subsidiaries, taken as
      a whole or (b) the Company's ability to consummate the transactions
      contemplated by this Agreement, or (iv) any judgment, order or decree of
      any governmental body, agency or court having jurisdiction over the
      Company or IPCRe, except to the extent such contravention would not have a
      material adverse effect on (a) the Company and the Subsidiaries, taken as
      a whole or (b) the Company's ability to consummate the transactions
      contemplated by this Agreement; and no consent, approval, authorization or
      order of, or qualification with, any governmental body or agency is
      required for the performance by the Company of obligations under this
      Agreement, except registrations and filings under the Securities Act (as
      mentioned in Section 1(a)) and under the Exchange Act, and such as may be
      required by the securities or Blue Sky or insurance securities laws of the
      various states in connection with the offer and sale of the Shares, as may
      be required in such jurisdictions outside the U.S. where the Underwriters
      choose to market the Shares and such as may be required and have been
      obtained from the Bermuda Monetary Authority.

            (s) There has not occurred any material adverse change, or any
      development involving a prospective material adverse change, in the
      condition, financial or otherwise, or in the earnings, business or
      operations of the Company


                                      -6-

      and the Subsidiaries, taken as a whole, from that set forth in the
      Disclosure Package and Final Prospectus (exclusive of any amendments or
      supplements thereto subsequent to the date of this Agreement). Subsequent
      to the respective dates as of which information is given in the Disclosure
      Package, the Final Prospectus and the Registration Statement: (i) neither
      the Company nor IPCRe has incurred any material loss or interference with
      its own business operations (excluding losses suffered by cedents covered
      by reinsurance policies of IPCRe) from fire, explosion, flood or other
      calamity, whether or not covered by insurance, or from any labor dispute
      or court or governmental action, order or decree, or any other liability
      or obligation, direct or contingent, that is material to the Company and
      the Subsidiaries, taken as a whole; and (ii) there has not been any
      material change in the capital, shareholders' equity, statutory surplus or
      reserves (including any such change in the loss and loss adjustment
      expense reserves) of the Company or IPCRe.

            (t) No relationship, direct or indirect, or agreement, arrangement
      or understanding (including, without limitation, any voting agreement),
      exists between or among the Company or either of the Designated
      Subsidiaries and any other party, which is required by the Securities Act
      to be described in the Disclosure Package, the Final Prospectus or the
      Registration Statement or to be filed as an exhibit to the Registration
      Statement which is not described or filed as required.

            (u) There are no legal or governmental proceedings pending or, to
      the Company's knowledge, threatened to which the Company or either of the
      Designated Subsidiaries is a party or to which any of the properties of
      the Company or either of the Designated Subsidiaries is subject that are
      required to be described in the Disclosure Package, the Final Prospectus
      or the Registration Statement and are not so described or any statutes,
      regulations, contracts or other documents that are required to be
      described in the Disclosure Package, the Final Prospectus or the
      Registration Statement or to be filed as exhibits to the Registration
      Statement that are not described or filed as required.

            (v) No action, suit or proceeding by or before any court or
      governmental agency, authority or body or any arbitrator of competent
      jurisdiction involving the Company or its Designated Subsidiaries or to
      the knowledge of the Company, or its or their property is pending or, to
      the knowledge of the Company, threatened that (i) would reasonably be
      expected to have a material adverse effect on the Company's ability to
      consummate the transactions contemplated by this Agreement or (ii) would
      reasonably be expected to have a material adverse effect on the condition
      (financial or otherwise), earnings, business or properties of the Company
      and its Subsidiaries, taken as a whole, except as set forth in or
      contemplated in the Final Prospectus and the Disclosure Package (exclusive
      of any amendments or supplements thereto subsequent to the date of this
      Agreement).

            (w) Each preliminary prospectus filed as part of the registration
      statement as originally filed or as part of any amendment thereto, or
      filed pursuant


                                      -7-

      to Rule 424 under the Securities Act, complied when so filed in all
      material respects with the Securities Act and the applicable rules and
      regulations of the Commission thereunder.

            (x) IPCRe is duly registered by the Bermuda Minister of Finance as a
      Class 4 insurer under the Bermuda Insurance Act 1978, as amended, and any
      applicable rules and regulations thereunder. IPCRe is not required to be
      licensed or admitted as an insurer in, or otherwise to comply with the
      insurance laws (including laws that relate to companies that control
      insurance companies) and the rules, regulations and interpretations of the
      insurance regulatory authorities thereunder (collectively, "INSURANCE
      LAWS") of, any jurisdiction other than Bermuda in order to conduct its
      business as described in the Disclosure Package and the Final Prospectus.
      IPCRe Europe operates as a reinsurer under the laws of Ireland and is not
      required to be licensed under such laws. IPCUSL is registered in Bermuda
      and licensed as an insurance agent.

            (y) The Company and IPCRe possess all consents, authorizations,
      approvals, orders, licenses, certificates, or permits issued by any
      regulatory agencies or bodies (collectively, "PERMITS") which are
      necessary to conduct the business now operated by them as described in the
      Disclosure Package and the Final Prospectus, except where the failure to
      possess such Permits would not have a material adverse effect on the
      Company and the Subsidiaries, taken as a whole; all of such Permits are in
      full force and effect, except where the failure to be in full force and
      effect would not have a material adverse effect on the Company and the
      Subsidiaries, taken as a whole; there is no pending or, to the knowledge
      of the Company, contemplated or threatened action, suit, proceeding,
      investigation or event against or involving the Company or IPCRe (and the
      Company knows of no reasonable basis for any such action, suit,
      proceeding, investigation or event) that could lead to the revocation,
      modification, termination, suspension or any other material impairment of
      the rights of the holder of any such Permit which, individually or in the
      aggregate, if the subject of an unfavorable decision, ruling or finding,
      would materially and adversely affect the condition, financial or
      otherwise, or the earnings, business or operations of the Company and the
      Subsidiaries, taken as a whole; neither the Company nor IPCRe has received
      any notification from any insurance authority, commission or other
      insurance regulatory body to the effect that any additional Permit from
      such authority, commission or body is needed to be obtained by the Company
      or IPCRe or that the Company or IPCRe is not in compliance with any
      applicable Insurance Laws; and no insurance regulatory agency or body has
      issued any order or decree impairing, restricting or prohibiting the
      payment of any dividends by the Company or IPCRe or the continuation of
      the business of the Company or IPCRe as currently conducted.

            (z) Each of the Company and IPCRe has filed all reports, information
      statements and other documents as required to be filed pursuant to Bermuda
      law, and has duly paid all taxes (including franchise taxes and similar
      fees) it is required


                                      -8-

      to have paid under Bermuda law, except where the failure to file such
      statements or reports or pay such taxes would not have a material adverse
      effect on the condition, financial or otherwise, or on the earnings,
      business or operations of the Company and the Subsidiaries, taken as a
      whole; and each of the Company and IPCRe maintains its books and records
      in accordance with the Bermuda Insurance Act (as defined below), except
      where the failure to so maintain its books and records would not have a
      material adverse effect on the condition, financial or otherwise, or on
      the earnings, business or operations of the Company and the Subsidiaries,
      taken as a whole.

            (aa) IPCRe is in compliance with the applicable requirements of the
      Bermuda Insurance Act 1978, as amended, and any applicable rules and
      regulations thereunder (collectively, the "BERMUDA INSURANCE ACT"), except
      where the failure to comply would not have a material adverse effect on
      the Company and the Subsidiaries, taken as a whole; and, subject to the
      disclosures in the Disclosure Package and the Final Prospectus, each of
      the Company and IPCRe is in compliance with the insurance laws and
      regulations of other jurisdictions which are applicable to the Company or
      IPCRe, as the case may be, except where the failure to comply would not
      have a material adverse effect on the Company and the Subsidiaries, taken
      as a whole.

            (bb) All liability, casualty, directors and officers liability,
      surety bonds and other similar insurance contracts that insure the
      business, properties, operations or affairs of the Company and IPCRe or
      affect or relate to the ownership, use or operations of the Company's or
      IPCRe's assets or properties are in full force and effect and, to the
      knowledge of the Company and IPCRe, are with financially sound and
      reputable insurers and in accordance with normal industry practice.

            (cc) Neither the Underwriters nor any subsequent purchasers of the
      Shares is subject to any stamp duty, excise or similar tax imposed in
      Bermuda in connection with the offering, sale or purchase of the Shares.

            (dd) Any tax returns required to be filed by the Company or IPCRe in
      any jurisdiction have been filed, and any material taxes, including any
      withholding taxes, penalties and interest, assessments and fees and other
      charges due or claimed to be due from such entities have been paid, other
      than any of those being contested in good faith and for which adequate
      reserves have been provided or any of those currently payable without
      penalty or interest.

            (ee) The Company and IPCRe have received from the Bermuda Minister
      of Finance an assurance under The Exempted Undertakings Tax Protection
      Act, 1966 of Bermuda as described in the Prospectus under the caption
      "Bermuda Taxation," and neither the Company nor IPCRe has received any
      notification to the effect (or is otherwise aware) that such assurance may
      be revoked or otherwise not honored by the Bermuda government.


                                      -9-

            (ff) There are no currency exchange control laws or withholding
      taxes, in each case of Bermuda, that would be applicable to the payment of
      dividends: (i) on the Shares by the Company (other than to residents of
      Bermuda for Bermuda exchange control purposes); or (ii) by IPCRe to the
      Company.

            (gg) Neither the Company nor either of the Designated Subsidiaries
      has taken or will take, directly or indirectly, any action designed to, or
      that might reasonably be expected to, cause or result in the stabilization
      or manipulation of the price of any security of the Company to facilitate
      the sale or resale of the Shares pursuant to the distribution contemplated
      by this Agreement, and other than as permitted by the Securities Act or
      the applicable rules and regulations of the Commission thereunder, the
      Company and the Designated Subsidiaries have not distributed and will not
      distribute, prior to the later to occur of: (i) the Closing Date or the
      Option Closing Date (as described below); and (ii) completion of the
      distribution of the Shares, any prospectus or other offering material in
      connection with the offering and sale of the Shares.

            (hh) KPMG, who certified the financial statements and supporting
      schedules included in the Registration Statement, Disclosure Package and
      Final Prospectus, is the independent registered public accounting firm
      with respect to the Company as required by the Securities Act.

            (ii) The Company and IPCRe maintain "disclosure controls and
      procedures" (as defined in Rule 13a-15(e) under the Exchange Act) and
      maintain a system of internal accounting controls sufficient to provide
      reasonable assurances that: (i) transactions are executed in all material
      respects in accordance with management's general or specific
      authorization; (ii) transactions are recorded as necessary to permit
      preparation of financial statements in conformity with United States
      generally accepted accounting principles and with statutory accounting
      principles, as the case may be, and to maintain accountability for assets;
      (iii) access to assets is permitted only in accordance with management's
      general or specific authorization; and (iv) the recorded accountability
      for assets is compared with existing assets at reasonable intervals and
      appropriate action is taken with respect to any differences.

            (jj) The Company is not required to register as an "investment
      company" as such term is defined in the Investment Company Act of 1940, as
      amended.

            (kk) The Company and IPCRe (i) are in compliance with any and all
      applicable foreign, federal, state and local laws and regulations relating
      to the protection of human health and safety, the environment or hazardous
      or toxic substances or wastes, pollutants or contaminants ("ENVIRONMENTAL
      LAWS"), (ii) have received all permits, licenses or other approvals
      required of them under applicable Environmental Laws to conduct their
      respective businesses and (iii) are


                                      -10-

      in compliance with all terms and conditions of any such permit, license or
      approval, except where such noncompliance with Environmental Laws, failure
      to receive required permits, licenses or other approvals or failure to
      comply with the terms and conditions of such permits, licenses or
      approvals would not have a material adverse effect on the Company and the
      Subsidiaries, taken as a whole.

            (ll) Other than the arrangements with the Selling Shareholder
      described in the Disclosure Package and the Final Prospectus, there are no
      contracts, agreements or understandings between the Company and any person
      granting such person the right to require the Company to file a
      registration statement under the Securities Act with respect to any
      securities of the Company or to require the Company to include such
      securities with the Shares registered pursuant to the Registration
      Statement.

            (mm) The Company and IPCRe have not taken, directly or indirectly,
      any action designed to or that would be reasonably expected to cause or
      result in the Company and/or IPCRe being treated as: (i) engaged in a
      trade or business within the United States for purposes of the Internal
      Revenue Code of 1986, as amended (the "CODE"); or (ii) a Passive Foreign
      Investment Company within the meaning of Section 1297 of the Code. The
      Company, to its knowledge, is not a Passive Foreign Investment Company
      within the meaning of Section 1297 of the Code.

            (nn) The Shares have previously been approved for quotation on the
      Nasdaq Global Select Market and the Company is not aware of any reason why
      the Shares would no longer be so approved due to the sale of the Shares by
      the Selling Shareholder.

            2. Representations and Warranties of the Selling Shareholder. The
Selling Shareholder represents and warrants to, and agrees with, each
Underwriter that:

            (a) Such Selling Shareholder is the record and beneficial owner of
      the Shares to be sold by it hereunder free and clear of all liens,
      encumbrances, equities and claims and has duly endorsed such Shares in
      blank, and has full power and authority to sell its interest in the
      Shares, and, assuming that each Underwriter acquires its interest in the
      Shares it has purchased from such Selling Shareholder without notice of
      any adverse claim (within the meaning of Section 8-105 of the New York
      Uniform Commercial Code ("UCC")), each Underwriter that has purchased such
      Shares delivered on the Closing Date to The Depository Trust Company or
      other securities intermediary by making payment therefor as provided
      herein, and that has had such Shares credited to the securities account or
      accounts of such Underwriters maintained with The Depository Trust Company
      or such other securities intermediary will have acquired a security
      entitlement (within


                                      -11-

      the meaning of Section 8-102(a)(17) of the UCC) to such Shares purchased
      by such Underwriter, and no action based on an adverse claim (within the
      meaning of Section 8-105 of the UCC) may be asserted against such
      Underwriter with respect to such Shares.

            (b) Such Selling Shareholder has not taken, directly or indirectly,
      any action designed to or that would constitute or that might reasonably
      be expected to cause or result in, under the Exchange Act or otherwise,
      stabilization or manipulation of the price of any security of the Company
      to facilitate the sale or resale of the Shares.

            (c) No consent, approval, authorization or order of any court or
      governmental agency or body is required for the consummation by such
      Selling Shareholder of the transactions contemplated herein, except such
      as may have been obtained under the Act and such as may be required under
      the blue sky laws of any jurisdiction in connection with the purchase and
      distribution of the Shares by the Underwriters and such other approvals as
      have been obtained.

            (d) Neither the sale of the Shares being sold by such Selling
      Shareholder nor the consummation of any other of the transactions herein
      contemplated by such Selling Shareholder or the fulfillment of the terms
      hereof by such Selling Shareholder will conflict with, result in a breach
      or violation of, or constitute a default under (i) any law, (ii) the
      charter or by-laws of such Selling Shareholder, (iii) the terms of any
      indenture or other agreement or instrument to which such Selling
      Shareholder or any of its subsidiaries is a party or bound, or (iv) any
      judgment, order or decree applicable to such Selling Shareholder or any of
      its subsidiaries of any court, regulatory body, administrative agency,
      governmental body or arbitrator having jurisdiction over such Selling
      Shareholder or any of its subsidiaries, in the case of clauses (i), (iii)
      or (iv), as would materially impair the ability of the Selling Shareholder
      to perform its obligations under this Agreement.

            (e) The Selling Shareholder, the Company and the Underwriters
      acknowledge that the Selling Shareholder Information with respect to the
      Selling Shareholder constitutes the only information furnished in writing
      by the Selling Shareholder for inclusion in the Preliminary Prospectus,
      the Final Prospectus or any Issuer Free Writing Prospectus and any
      supplements.

            (f) In respect of any statements in or omissions from the
      Registration Statement, the Final Prospectus, any Preliminary Prospectus
      or any Free Writing Prospectus or any amendment or supplement thereto used
      by the Company or any Underwriter, as the case may be, made in reliance
      upon and in conformity with the Selling Shareholder Information furnished
      in writing to the Company or to the Underwriters by the Selling
      Shareholder specifically for use in connection with the preparation
      thereof, Selling Shareholder hereby makes the same representations and
      warranties to each Underwriter as the Company makes to such Underwriter
      under paragraphs (b) or (c) of Section 1.


                                      -12-

Any certificate signed by any officer of any Selling Shareholder and delivered
to the Representative or counsel for the Underwriters in connection with the
offering of the Shares shall be deemed a representation and warranty by such
Selling Shareholder, as to matters covered thereby, to each Underwriter.

            3. Agreements to Sell and Purchase. (a) The Selling Shareholder
hereby agrees to sell to the several Underwriters, and each Underwriter, upon
the basis of the representations and warranties herein contained, but subject to
the conditions hereinafter stated, agrees, severally and not jointly, to
purchase from the Selling Shareholder the respective numbers of Firm Shares set
forth in Schedule I hereto opposite its name at $26.055 a share (the "PURCHASE
PRICE").

            (b) On the basis of the representations and warranties contained in
this Agreement, and subject to its terms and conditions, the Selling Shareholder
agrees to sell to the Underwriters the Additional Shares, and the Underwriters
shall have a one-time right to purchase, severally and not jointly, up to
2,000,0000 Additional Shares at the Purchase Price. If you, on behalf of the
Underwriters, elect to exercise such option, you shall so notify the Company and
the Seller Shareholder in writing not later than 30 days after the date of this
Agreement, which notice shall specify the number of Additional Shares to be
purchased by the Underwriters and the date on which such shares are to be
purchased. Such date may be the same as the Closing Date (as defined below) but
not earlier than the Closing Date nor later than ten business days after the
date of such notice. Additional Shares may be purchased as provided in Section 5
hereof solely for the purpose of covering over-allotments made in connection
with the offering of the Firm Shares. If any Additional Shares are to be
purchased, each Underwriter agrees, severally and not jointly, to purchase the
number of Additional Shares (subject to such adjustments to eliminate fractional
shares as you may determine) that bears the same proportion to the total number
of Additional Shares to be purchased as the number of Firm Shares set forth in
Schedule I hereto opposite the name of such Underwriter bears to the total
number of Firm Shares.

            (c) The Company hereby agrees that, without the prior written
consent of the Representative on behalf of the Underwriters, it will not, during
the period ending 60 days after the date of the Final Prospectus: (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock; or (ii) enter into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of the Common Stock, whether any such transaction described in
clause (i) or (ii) above is to be settled by delivery of Common Stock or such
other securities, in cash or otherwise or (iii) file any new registration
statement with the Commission relating to the offering of any shares of Common
Stock or any securities convertible into or exerciseable for Common Stock (it
being understood that a registration statement is already on file therefor). The
foregoing sentence shall not apply to (A) the sale of the Shares hereunder,


                                      -13-

or (B) the issuance by the Company of shares of Common Stock upon the exercise
of an option outstanding under the Company's existing stock option plan, the
vesting of any restricted stock unit outstanding under the Company's existing
stock incentive plan or the issuance of new options or restricted stock units
thereunder or any warrant or the conversion of a security outstanding on the
date hereof of which the Underwriters have been advised in writing prior to the
date hereof; provided however that the Company shall not be permitted to convert
any Series A 7.25% Mandatory Convertible Preferred Shares except with respect to
requests to convert such shares by holders thereof.

            4. Terms of Public Offering. The Selling Shareholder and the Company
are advised by you that the Underwriters propose to make a public offering of
their respective portions of the Shares as soon after this Agreement has become
effective as in your judgment is advisable. The Selling Shareholder and the
Company are further advised by you that the Shares are to be offered to the
public initially at $27.00 a share (the "PUBLIC OFFERING PRICE") and to certain
dealers selected by you at a price that represents a concession not in excess of
$0.5670 a share under the Public Offering Price.

            5. Payment and Delivery. (a) Payment for the Firm Shares shall be
made to the Selling Shareholder in Federal or other funds immediately available
in New York City against delivery of such Firm Shares for the respective
accounts of the several Underwriters at 10:00 a.m., New York City time, on
August 15, 2006 or at such other time on the same or such other date, as the
Representative shall designate in their sole discretion in writing. The time and
date of such payment are hereinafter referred to as the "CLOSING DATE."

            (b) Payment for any Additional Shares shall be made to the Selling
Shareholder in Federal or other funds immediately available in New York City
against delivery of such Additional Shares for the respective accounts of the
several Underwriters at 10:00 a.m., New York City time, on the date specified in
the notice described in Section 3 or at such other time on the same or on such
other date, as the Representative shall designate in its sole discretion in
writing. The time and date of such payment are hereinafter referred to as the
"OPTION CLOSING DATE".

            (c) Certificates for the Firm Shares and Additional Shares shall be
in definitive form and registered in such names and in such denominations as you
shall request in writing not later than one full business day prior to the
Closing Date or the Option Closing Date, as the case may be. The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
accounts directed by you, as Representative of the several Underwriters, with
any transfer taxes payable in connection with the transfer of the Shares to the
Underwriters duly paid, against payment of the Purchase Price therefor.

            6. Conditions to the Underwriters' Obligations. The several
obligations of the Underwriters to purchase and pay for the Shares on the
Closing Date


                                      -14-

are subject, in the discretion of the Underwriters, to the condition that all
representations and warranties and other statements of the Company and the
Selling Shareholder in this Agreement are, at and as of the date of this
Agreement and the Closing Date, true and correct, the condition that the Company
and the Selling Shareholder shall have performed all of their respective
obligations hereunder theretofore to be performed, and to the following
conditions:

            (a) The Final Prospectus as amended or supplemented in relation to
      the Shares shall have been filed with the Commission pursuant to Rule
      424(b) within the applicable time period prescribed for such filing by the
      rules and regulations under the Securities Act and in accordance with
      Section 7(i)(a) hereof; no stop order suspending the effectiveness of the
      Registration Statement shall have been issued or shall be pending or, to
      the knowledge of the Company, shall be threatened by the Commission, and
      any request on the part of the Commission for additional information shall
      have been complied with to the reasonable satisfaction of the Underwriter.

            (b) Subsequent to the execution and delivery of this Agreement and
      prior to the Closing Date:

                  (i) there shall not have occurred any downgrading, nor shall
            any notice have been given of any intended or potential downgrading
            or of any review for a possible change that does not indicate the
            direction of the possible change, in the rating accorded to the
            Company or any of its Designated Subsidiaries or any of their
            securities by any "nationally recognized statistical rating
            organization," as such term is defined for purposes of Rule
            436(g)(2) under the Securities Act; and

                  (ii) there shall not have occurred any change, or any
            development involving a prospective change, in the condition,
            financial or otherwise, or in the earnings, business or operations
            of the Company and the Subsidiaries, taken as a whole, from that set
            forth in the Disclosure Package and the Final Prospectus (exclusive
            of any amendments or supplements thereto subsequent to the date of
            this Agreement) that, in your judgment, is material and adverse and
            that makes it, in your judgment, impracticable to market the Shares
            on the terms and in the manner contemplated in the Disclosure
            Package and the Final Prospectus.

            (c) The Underwriters shall have received on the Closing Date a
      certificate, dated the Closing Date and signed by an executive officer of
      the Company, to the effect set forth in Section 6(a) and 6(b) above and to
      the effect that: (i) the representations and warranties of the Company
      contained in this Agreement are true and correct as of the Closing Date;
      and (ii) the Company has complied with all of the agreements and satisfied
      all of the conditions on its part to be performed or satisfied hereunder
      on or before the Closing Date.


                                      -15-

            (d) The Underwriters shall have received on the Closing Date a
      certificate, signed by an executive officer of the Selling Shareholder, to
      the effect that the signer of such certificate has carefully examined the
      Registration Statement, the Final Prospectus, any Issuer Free Writing
      Prospectus and any supplements or amendments thereto and this Agreement,
      and that the representations and warranties of the Selling Shareholder
      contained in Section 2 of this Agreement are true and correct as of the
      Closing Date.

            (e) The Underwriters shall have received on the Closing Date an
      opinion (which opinion may be rendered in reliance upon the appropriate
      opinions of Conyers Dill & Pearman as to Bermuda law) of Sullivan &
      Cromwell LLP, U.S. counsel to the Company, dated the Closing Date, to the
      effect that:

                  (i) this Agreement has been duly authorized, executed and
            delivered by the Company

                  (ii) the execution and delivery by the Company of, and the
            performance by the Company of its obligations under, this Agreement
            will not violate any provision of (A) United States Federal or New
            York law (provided, however, that such counsel need express no
            opinion with respect to United States Federal or state securities
            laws, antifraud laws and fraudulent transfer laws), (B) to such
            counsel's knowledge, any agreement or other instrument binding upon
            the Company or IPCRe that is material to the Company and the
            Subsidiaries, taken as a whole, or (C) to such counsel's knowledge,
            any judgment, order or decree of any governmental body, agency or
            court having jurisdiction over the Company or IPCRe; and no consent,
            approval, authorization or order of, or qualification with, any
            United States Federal or New York governmental body or agency is
            required for the performance by the Company of its obligations under
            this Agreement, except such as may be required by the Securities
            Act, the Exchange Act and the securities or Blue Sky or insurance
            securities laws of New York;

                  (iii) the Registration Statement has become effective under
            the Securities Act; any required filing of the Basic Prospectus, any
            Preliminary Prospectus and the Final Prospectus, and any supplements
            thereto, pursuant to Rule 424(b) has been made in the manner and
            within the time period required by Rule 424(b); to the knowledge of
            such counsel, no stop order suspending the effectiveness of the
            Registration Statement or any notice that would prevent its use has
            been issued, no proceedings for that purpose have been instituted or
            threatened;

                  (iv) to such counsel's knowledge, such counsel does not know
            of any legal or governmental proceedings pending or threatened to
            which the Company or IPCRe is a party or to which any of the
            properties of the


                                      -16-

            Company or IPCRe is subject that are required to be described in the
            Disclosure Package, the Final Prospectus or the Registration
            Statement and are not so described or of contracts or other
            documents that are required to be described in the Disclosure
            Package, the Final Prospectus or the Registration Statement or to be
            filed as exhibits to the Registration Statement that are not
            described or filed or incorporated by reference as required;

                  (v) to such counsel's knowledge, neither the Company nor IPCRe
            has received any notification from any insurance authority,
            commission or other insurance regulatory body to the effect that any
            license from such authority, commission or body is needed to be
            obtained by the Company or IPCRe or that the Company or IPCRe is not
            in compliance with any applicable Insurance Laws;

                  (vi) the discussion of United States tax matters set forth
            under the headings "U.S. Federal Tax Considerations" and "Certain
            United States Federal Tax Considerations for Holders of Common
            Shares" in the Disclosure Package and Final Prospectus together
            fairly and accurately reflects such counsel's opinion as to such tax
            laws (subject to the qualifications and assumptions set forth in
            such discussion);

                  (vii) under the laws of the State of New York relating to
            submission to jurisdiction, the Company has validly submitted to the
            non-exclusive jurisdiction of any United States Federal or state
            court in the Borough of Manhattan, the City of New York, State of
            New York (a "NEW YORK COURT"), has validly waived any objection to
            the venue of a proceeding in any such New York Court and has validly
            appointed CT Corporation System, as its authorized agent, for the
            purpose and to the extent described in Section 12 of this Agreement
            and assuming: (A) the validity of such actions under Bermuda law;
            and (B) the due authorization, execution and delivery of this
            Agreement by or on behalf of the Underwriters; and (C) that the
            Registration Statement and the Final Prospectus do not contain any
            material misstatements or omissions;

                  (viii) the Company is not an "investment company" within the
            meaning of the Investment Company Act of 1940, as amended;

                  (ix) such counsel: (A) is of the opinion that the Registration
            Statement and Final Prospectus (except for financial statements and
            schedules and other financial and statistical data included or
            incorporated by reference therein as to which such counsel need not
            express any opinion) comply as to form in all material respects with
            the Securities Act and the applicable rules and regulations of the
            Commission thereunder; (B) has no reason to believe that (except for
            financial statements and


                                      -17-

            schedules and other financial and statistical data as to which such
            counsel need not express any belief) on each Effective Date the
            Registration Statement contained any untrue statement of a material
            fact or omitted to state a material fact required to be stated
            therein or necessary to make the statements therein not misleading;
            (C) has no reason to believe that (except for financial statements
            and schedules and other financial and statistical data as to which
            such counsel need not express any belief) the Final Prospectus as of
            the date hereof and as of the Closing Date contained any untrue
            statement of a material fact or omitted to state a material fact
            required to be stated therein or necessary to make the statements
            therein, in the light of the circumstances under which they were
            made, not misleading; and (D) has no reason to believe that (except
            for financial statements and schedules and other financial and
            statistical data as to which such counsel need not express any
            belief) the Disclosure Package as of the date of the Execution Time
            contained any untrue statement of a material fact or omitted to
            state a material fact required to be stated therein or necessary to
            make the statements therein, in the light of the circumstances under
            which they were made, not misleading;

                  (x) the statements in the Disclosure Package and the Final
            Prospectus under the caption "Certain Relationships And Related
            Transactions" insofar as such statements constitute summaries of the
            legal matters, documents or proceedings referred to therein, fairly
            present the information called for with respect to such legal
            matters, documents and proceedings and fairly summarize the matters
            referred to therein; and the statements in the Disclosure Package
            and Final Prospectus under the captions "Plan of Distribution" and
            "Underwriting" insofar as such statements constitute a summary of
            this Agreement fairly present the information called for with
            respect to such document and fairly summarize the documents referred
            to therein.

                  (xi) the documents incorporated by reference in the Disclosure
            Package and the Final Prospectus pursuant to Item 12 of Form S-3
            under the Securities Act (other than the financial statements,
            supporting schedules and other financial information included or
            incorporated by reference therein, as to which no opinion need to be
            rendered), at the time they were filed (or at the time they were
            amended, if applicable) with the Commission complied as to form in
            all material respects with the requirements of the Exchange Act and
            the rules and regulations thereunder; and

                  (xii) the sale of the Shares, the execution, delivery and
            performance of this Agreement and the consummation of the
            transactions contemplated herein will not conflict with or
            constitute a breach of, or default under, the Amended and Restated
            Administrative Services

                                      -18-

            Agreement, the Investment Management Agreement, the Investment
            Sub-Advisory Agreement and the Custodial Agreement, all as described
            in the Prospectus.

            (f) The Underwriters shall have received on the Closing Date an
      opinion (which opinion may be rendered in reliance on the appropriate
      opinions of Sullivan & Cromwell LLP as to New York law) of Conyers Dill &
      Pearman, special Bermuda counsel to the Company, dated the Closing Date,
      to the effect that:

                  (i) each of the Company, IPCRe and IPCUSL has been duly
            incorporated and is validly existing under the laws of Bermuda in
            good standing (meaning solely that each company has not failed to
            make any filing with any Bermuda governmental authority or to pay
            any Bermuda government fee or tax which would make it liable to be
            struck off the Register of Companies and thereby cease to exist
            under the laws of Bermuda);

                  (ii) the Company has the necessary corporate power and
            authority to execute, deliver and perform its obligations under this
            Agreement and the necessary corporate power to own its property and
            conduct its business as described under the caption "Business" in
            the Company's annual report on Form 10-K for the fiscal year ended
            December 31, 2005. The execution and delivery of this Agreement by
            the Company and the performance by the Company of its obligations
            thereunder will not violate the memorandum of association or
            bye-laws of the Company nor any applicable law, regulation, order or
            decree in Bermuda;

                  (iii) each of the Company, IPCRe and IPCUSL has obtained all
            necessary licenses, authorizations and permits from any government
            or public body or authority of Bermuda or any sub-division thereof
            to conduct its business as described under the caption "Business" in
            the Company's annual report on Form 10-K for the fiscal year ended
            December 31, 2005;

                  (iv) each of IPCRe and IPCUSL has the necessary corporate
            power to own its property and conduct its business as described
            under the caption "Business" in the Company's annual report on Form
            10-K for the fiscal year ended December 31, 2005;

                  (v) the Company has taken all corporate action required to
            authorize its execution, delivery and performance of this Agreement.
            This Agreement has been duly executed and delivered by or on behalf
            of the Company, and constitutes the valid and binding obligations of
            the Company, enforceable against the Company in accordance with the
            terms thereof;


                                      -19-

                  (vi) the authorized capital of the Company conforms, as to
            matters of Bermuda law, to the description thereof contained in the
            Registration Statement, the Disclosure Package and the Final
            Prospectus in all material respects;

                  (vii) based solely upon a review of a copy of the register of
            members of the Company certified by the Secretary of the Company on
            August 15, 2006, the issued share capital of the Company (including
            the Shares to be sold by the Selling Shareholder) consists of
            63,610,492 common shares, each of which is validly issued, fully
            paid and non-assessable. The issuance of the Shares by the Company
            to the Selling Shareholder has been validly authorized by the
            Company;

                  (viii) based solely upon a review of a copy of the register of
            members of IPCRe certified by the Secretary of IPCRe on August 15,
            2006, the issued share capital (including the Shares to be sold by
            the Selling Shareholder) of IPCRe consists of 1,250 common shares,
            par value $200 per share, registered in the name of the Company,
            each of which is validly issued, fully paid and non-assessable;

                  (ix) based solely upon a review of a copy of the register of
            members of IPCUSL certified by the Secretary of IPCUSL on August 15,
            2006, the issued share capital of IPCUSL consists of 12,000 common
            shares, par value $1.00 per share, registered in the name of the
            Company, each of which is validly issued, fully paid and
            non-assessable;

                  (x) no order, consent, approval, license, authorization or
            validation of, filing with or exemption by any government or public
            body or authority of Bermuda or any sub-division thereof is required
            to authorize or is required in connection with the execution,
            delivery, performance and enforcement of this Agreement, except such
            as have been duly obtained or filed in accordance with Bermuda law;

                  (xi) it is not necessary or desirable to ensure the
            enforceability in Bermuda of this Agreement that it be registered in
            any register kept by, or filed with, any governmental authority or
            regulatory body in Bermuda. However, to the extent that this
            Agreement creates a charge over assets of the Company or IPCRe, it
            may be desirable to ensure the priority in Bermuda of the charge
            that it be registered in the Register of Charges in accordance with
            Section 55 of the Companies Act 1981. On registration, to the extent
            that Bermuda law governs the priority of a charge, such charge will
            have priority in Bermuda over any unregistered charges, and over any
            subsequently registered charges, in respect of the assets which are
            the subject of the charge. A registration fee of $515 will be
            payable in respect of the registration. While there is no exhaustive
            definition of a


                                      -20-

            charge includes any interest created in property by way of security
            (including any mortgage, assignment, pledge, lien or hypothecation).
            As this Agreement is governed by New York law, the question of
            whether it creates such an interest in property would be determined
            under New York law;

                  (xii) based solely upon a review of a copy of its certificate
            of registration issued pursuant to the Bermuda Insurance Act, IPCRe
            is duly registered in Bermuda as a class 4 insurer in accordance
            with the provisions of the Insurance Act;

                  (xiii) the statements in the Disclosure Package and the Final
            Prospectus under the captions "Dividends", "Description of Common
            Shares and Preferred Shares We May Offer", "Bermuda Taxation" and
            "Enforceability of Civil Liabilities Under The United States Federal
            Securities Laws", "Risk Factors", "Certain United States Federal Tax
            Considerations for Holders of Common Shares" and in the Company's
            annual report on Form 10-K for the fiscal year ended December 31,
            2005 under the caption "Bermuda - The Insurance Act of 1978, as
            amended, and Related Regulations (the "INSURANCE ACT")" insofar as
            they purport to describe the provisions of the laws of Bermuda
            referred to therein, are correct in all material respects;

                  (xiv) there is no income or other tax of Bermuda imposed by
            withholding or otherwise on any payment to be made to or by the
            Company pursuant to this Agreement. This Agreement will not be
            subject to ad valorem stamp duty in Bermuda and no registration,
            documentary, recording, transfer or other similar tax, fee or charge
            is payable in Bermuda in connection with the execution, delivery,
            filing, registration or performance of this Agreement other than as
            stated in paragraph (xiii) hereof;

                  (xv) the Company and IPCRe have each received from the Bermuda
            Minister of Finance an assurance under The Exempted Undertakings Tax
            Protection Act, 1966 as described in the Disclosure Package and the
            Final Prospectus under the caption "Bermuda Taxation";

                  (xvi) there is no income or other tax of Bermuda imposed by
            withholding or otherwise on any dividend or distribution to be made
            (i) by the Company to the holders of the Shares; or (ii) by IPCRe or
            IPCUSL to the Company. The Company has been designated as
            non-resident of Bermuda for the purposes of the Exchange Control
            Act, 1972 and, as such, is free to acquire, hold and sell foreign
            currency and securities without restriction;


                                      -21-

                  (xvii) the choice of New York law as the governing law of this
            Agreement is a valid choice of law and would be recognized and given
            effect to in any action brought before a court of competent
            jurisdiction in Bermuda, except for those laws (i) which such court
            considers to be procedural in nature, (ii) which are revenue or
            penal laws or (iii) the application of which would be inconsistent
            with public policy, as such term is interpreted under the laws of
            Bermuda. The submission in this Agreement to the non-exclusive
            jurisdiction of any New York Court is valid and binding upon the
            Company;

                  (xviii) the courts of Bermuda would recognize as a valid
            judgment, a final and conclusive judgment in personam obtained in a
            New York Court against the Company based upon this Agreement under
            which a sum of money is payable (other than a sum of money payable
            in respect of multiple damages, taxes or other charges of a like
            nature or in respect of a fine or other penalty) and would give a
            judgment based thereon provided that (a) such courts had proper
            jurisdiction over the parties subject to such judgment, (b) such
            courts did not contravene the rules of natural justice of Bermuda,
            (c) such judgment was not obtained by fraud, (d) the enforcement of
            the judgment would not be contrary to the public policy of Bermuda,
            (e) no new admissible evidence relevant to the action is submitted
            prior to the rendering of the judgment by the courts of Bermuda and
            (f) there is due compliance with the correct procedures under the
            laws of Bermuda;

                  (xix) based solely upon a search of the Cause Book of the
            Supreme Court of Bermuda conducted at approximately 9:30 am on
            August 15, 2006 (which would not reveal details of proceedings which
            have been filed but not actually entered in the Cause Book at the
            time of our search), there are no judgments against the Company, nor
            any legal or governmental proceedings pending in Bermuda to which
            the Company is subject; and

                  (xx) based solely on a search of the Register of Charges
            maintained by the Registrar of Companies pursuant to Section 55 of
            the Companies Act 1981 conducted at approximately 9:30 am on August
            15, 2006 (which would not reveal details of matters which have been
            lodged for registration but not actually registered at the time of
            our search), there are no charges registered on the assets of the
            Company and four charges registered on the assets of the IPCRe.

            (g) The Underwriters shall have received on the Closing Date an
      opinion of Wachtell, Lipton, Rosen & Katz, special counsel to the Selling
      Shareholder, to the effect that:


                                      -22-


                  (i) this Agreement has been duly authorized, executed and
            delivered by the Selling Shareholder; and

                  (ii) to such Counsel's knowledge, each Underwriter that has
            purchased such Shares delivered on the Closing Date to The
            Depository Trust Company or other securities intermediary by making
            payment therefor as provided herein, and that has had such Shares
            credited to the securities account or accounts of such Underwriters
            maintained with The Depository Trust Company or such other
            securities intermediary will have acquired a security entitlement
            (within the meaning of Section 8-102(a)(17) of the UCC) to such
            Shares purchased by such Underwriter, and no action based on an
            adverse claim (within the meaning of Section 8-105 of the UCC) may
            be asserted against such Underwriter with respect to such Shares.
            For the purposes of this opinion, such counsel may assume that when
            such payment, delivery and crediting occur, (A) the Underwriters do
            not have notice of any adverse claim to the Shares or any financial
            asset relating to the Shares or any shares of Common Stock that are
            part of the securities entitlement of the Underwriters, (B) such
            Shares will have been registered in the name of Cede & Co. or
            another nominee designated by The Depository Trust Company, in each
            case on the Company's share registry in accordance with its
            certificate of incorporation, bylaws and applicable law, (C) The
            Depository Trust Company will be registered as a "clearing
            corporation" within the meaning of Section 8-102 of the UCC, (D)
            appropriate entries to the accounts of the several Underwriters on
            the records of The Depository Trust Company will have been made
            pursuant to the UCC and (E) the "securities intermediary's
            jurisdiction" (as defined in Section 8-110 of the UCC) of each
            securities intermediary that acts as a clearing corporation or
            maintains securities accounts with respect to the transfer of the
            Shares to the Underwriters is the State of New York.

      In rendering their opinion, such counsel may rely as to matters of fact,
      to the extent such counsel deems proper, on certificates of responsible
      officers of the Selling Shareholder and certificates or other written
      statements of officials of jurisdictions having custody of documents
      respecting the corporate existence or good standing of the Selling
      Shareholder.

      In rendering their opinion, such counsel may state that they express no
      opinion other than as to the corporate laws of the State of New York and
      the federal securities laws of the United States.

            (h) The Underwriters shall have received on the Closing Date an
      opinion of Kathleen Shannon, Senior Vice President - Secretary and Deputy
      General Counsel of the Selling Shareholder covering the following:


                                      -23-



                  (i) The Selling Shareholder has the legal right and authority
            to sell, transfer and deliver in the manner provided in this
            Agreement the Shares being sold by the Selling Shareholder
            hereunder; and

                  (ii) No consent, approval, authorization or order of any court
            or governmental agency or body is required for the consummation by
            the Selling Shareholder of the transactions contemplated herein,
            except such as may have been obtained under the Securities Act and
            such as may be required under the blue sky laws of any jurisdiction
            in connection with the purchase and distribution of the Shares by
            the Underwriters and such other approvals (specified in such
            opinion) as have been obtained.

            (i) The Underwriters shall have received on the Closing Date an
      opinion (which opinion may be rendered in reliance upon the appropriate
      opinions of Conyers Dill & Pearman as to Bermuda law) of Davis Polk &
      Wardwell, counsel for the Underwriters, dated the Closing Date, covering
      the matters referred to in Sections 6(e)(ix) and 6(e)(x) (but only as to
      the statements in the Disclosure Package and the Final Prospectus under
      "Underwriting" insofar as such statement set forth the information
      required to be stated therein) above.

            With respect to Section 6(e)(ix) above, Sullivan & Cromwell LLP and
      Davis Polk & Wardwell may state that their opinion and belief are based
      upon their participation in the preparation of the Registration Statement,
      Disclosure Package and Final Prospectus and any amendments or supplements
      thereto and review and discussion of the contents thereof, but are without
      independent check or verification, except as specified.

            The opinions of Sullivan & Cromwell LLP and Conyers Dill & Pearman
      described in Sections 6(e) and 6(f) above shall be rendered to the
      Underwriters at the request of the Company and shall so state therein.

            (j) The Underwriters shall have received, on each of the date hereof
      and the Closing Date, a letter dated the date hereof or the Closing Date,
      as the case may be, in form and substance satisfactory to the
      Underwriters, from KPMG, independent registered public accounting firm,
      containing statements and information of the type ordinarily included in
      accountants' "comfort letters" to underwriters with respect to the
      financial statements and certain financial information contained in or
      incorporated by reference into the Disclosure Package, the Final
      Prospectus and the Registration Statement; provided, that the letter
      delivered on the Closing Date shall use a "cut-off date" not earlier than
      the date hereof.

            (k) The "lock-up" agreements between you and certain officers and
      directors of the Company, each substantially in the form of Exhibit A-1
      hereto relating to sales and certain other dispositions of shares of
      Common Stock or certain


                                      -24-


      other securities, delivered to you on or before the date hereof, shall be
      in full force and effect on the Closing Date.

            The several obligations of the Underwriters to purchase Additional
Shares hereunder are subject to the delivery to you on the Option Closing Date
of such documents as you may reasonably request with respect to the good
standing of the Company and the Designated Subsidiaries, the due authorization
and issuance of the Additional Shares and other matters related to the sale of
the Additional Shares.

            7. Covenants of the Company and the Selling Shareholder. In further
consideration of the agreements of the Underwriters herein contained:

            (i) The Company agrees with the several Underwriters that:

            (a) Prior to the termination of the offering of the Shares, the
      Company will not file any amendment of the Registration Statement or
      supplement (including the Final Prospectus or any Preliminary Prospectus)
      to the Basic Prospectus unless the Company has furnished you a copy for
      your review prior to filing and will not file any such proposed amendment
      or supplement to which you reasonably object. The Company will cause the
      Final Prospectus, properly completed, and any supplement thereto to be
      filed in a form approved by the Representative with the Commission
      pursuant to the applicable paragraph of Rule 424(b) within the time period
      prescribed and will provide evidence satisfactory to the Representative of
      such timely filing. The Company will promptly advise the Representative
      (i) when the Final Prospectus, and any supplement thereto, shall have been
      filed (if required) with the Commission pursuant to Rule 424(b), (ii)
      when, prior to termination of the offering of the Shares, any amendment to
      the Registration Statement shall have been filed or become effective,
      (iii) of any request by the Commission or its staff for any amendment of
      the Registration Statement, or any Rule 462(b) Registration Statement, or
      for any supplement to the Final Prospectus or for any additional
      information, (iv) of the issuance by the Commission of any stop order
      suspending the effectiveness of the Registration Statement or of any
      notice objecting to its use or the institution or threatening of any
      proceeding for that purpose and (v) of the receipt by the Company of any
      notification with respect to the suspension of the qualification of the
      Shares for sale in any jurisdiction or the institution or threatening of
      any proceeding for such purpose. The Company will use its best efforts to
      prevent the issuance of any such stop order or the occurrence of any such
      suspension or objection to the use of the Registration Statement and, upon
      such issuance, occurrence or notice of objection, to obtain as soon as
      possible the withdrawal of such stop order or relief from such occurrence
      or objection, including, if necessary, by filing an amendment to the
      Registration Statement or a new registration statement and using its best
      efforts to have such amendment or new registration statement declared
      effective as soon as practicable.


                                      -25-



            (b) If, at any time prior to the filing of the Final Prospectus
      pursuant to Rule 424(b), any event occurs as a result of which the
      Disclosure Package would include any untrue statement of a material fact
      or omit to state any material fact necessary to make the statements
      therein in the light of the circumstances under which they were made at
      such time not misleading, the Company will (i) notify promptly the
      Representative so that any use of the Disclosure Package may cease until
      it is amended or supplemented; (ii) amend or supplement the Disclosure
      Package to correct such statement or omission; and (iii) supply any
      amendment or supplement to you in such quantities as you may reasonably
      request.

            (c) If, at any time when a prospectus relating to the Shares is
      required to be delivered under the Act (including in circumstances where
      such requirement may be satisfied pursuant to Rule 172), any event occurs
      as a result of which the Final Prospectus as then supplemented would
      include any untrue statement of a material fact or omit to state any
      material fact necessary to make the statements therein in the light of the
      circumstances under which they were made or the circumstances then
      prevailing not misleading, or if it shall be necessary to amend the
      Registration Statement, file a new registration statement or supplement
      the Final Prospectus to comply with the Act or the Exchange Act or the
      respective rules thereunder, including in connection with use or delivery
      of the Final Prospectus, the Company promptly will (i) notify the
      Representative of any such event, (ii) prepare and file with the
      Commission, subject to the second sentence of paragraph (a) of this
      Section 7, an amendment or supplement or new registration statement which
      will correct such statement or omission or effect such compliance, (iii)
      use its best efforts to have any amendment to the Registration Statement
      or new registration statement declared effective as soon as practicable in
      order to avoid any disruption in use of the Final Prospectus and (iv)
      supply any supplemented Final Prospectus to you in such quantities as you
      may reasonably request.

            (d) As soon as practicable, the Company will make generally
      available to its security holders and to the Representative an earnings
      statement or statements of the Company and its subsidiaries which will
      satisfy the provisions of Section 11(a) of the Act and Rule 158.

            (e) The Company will furnish to the Representative and counsel for
      the Underwriters, without charge, signed copies of the Registration
      Statement (including exhibits thereto) and to each other Underwriter a
      copy of the Registration Statement (without exhibits thereto) and, so long
      as delivery of a prospectus by an Underwriter or dealer may be required by
      the Act (including in circumstances where such requirement may be
      satisfied pursuant to Rule 172), as many copies of each Preliminary
      Prospectus, the Final Prospectus and any Issuer Free Writing Prospectus
      and any supplement thereto as the Representative may reasonably request.


                                      -26-



            (f) The Company will arrange, if necessary, for the qualification of
      the Shares for sale under the laws of such jurisdictions as the
      Representative may designate and will maintain such qualifications in
      effect so long as required for the distribution of the Shares; provided
      that in no event shall the Company be obligated to qualify to do business
      in any jurisdiction where it is not now so qualified or to take any action
      that would subject it to service of process in suits, other than those
      arising out of the offering or sale of the Shares, in any jurisdiction
      where it is not now so subject.

            (g) The Company agrees that, unless it has or shall have obtained
      the prior written consent of the Representative, and each Underwriter,
      severally and not jointly, agrees with the Company that, unless it has or
      shall have obtained, as the case may be, the prior written consent of the
      Company, it has not made and will not make any offer relating to the
      Shares that would constitute an Issuer Free Writing Prospectus or that
      would otherwise constitute a "free writing prospectus" (as defined in Rule
      405) required to be filed by the Company with the Commission or retained
      by the Company under Rule 433. Any such free writing prospectus consented
      to by the Representative or the Company is hereinafter referred to as a
      "Permitted Free Writing Prospectus." The Company agrees that (x) it has
      treated and will treat, as the case may be, each Permitted Free Writing
      Prospectus as an Issuer Free Writing Prospectus and (y) it has complied
      and will comply, as the case may be, with the requirements of Rules 164
      and 433 applicable to any Permitted Free Writing Prospectus, including in
      respect of timely filing with the Commission, legending and record
      keeping.

            (h) The Company will not take, directly or indirectly, any action
      designed to or that would constitute or that might reasonably be expected
      to cause or result in, under the Exchange Act or otherwise, stabilization
      or manipulation of the price of any security of the Company to facilitate
      the sale or resale of the Shares.

            (ii) The Selling Shareholder agrees with the several Underwriters
      that:

            (a) The Selling Shareholder agrees to pay the costs and expenses
      relating to the following matters: (i) the SEC filing fees and the
      preparation, printing or reproduction and filing with the Commission of
      the Registration Statement (including financial statements and exhibits
      thereto), the Preliminary Prospectus and the Final Prospectus and any
      Issuer Free Writing Prospectus, and each amendment or supplement to any of
      them; (ii) the printing (or reproduction) and delivery (including postage,
      air freight charges and charges for counting and packaging) of such copies
      of the Registration Statement, the Preliminary Prospectus and the Final
      Prospectus and any Issuer Free Writing Prospectus, and all amendments or
      supplements to any of them, as may, in each case, be reasonably requested
      for use in connection with the offering and sale of the Shares; (iii) the
      preparation, printing, authentication, issuance and delivery of


                                      -27-


      certificates for the Shares, including any stamp or transfer taxes in
      connection with the original issuance and sale of the Shares; (iv) the
      printing (or reproduction) and delivery of this Agreement, any blue sky
      memorandum and all other agreements or documents printed (or reproduced)
      and delivered in connection with the offering of the Shares; (v) any
      registration or qualification of the Shares for offer and sale under the
      securities or blue sky laws of the several states (including filing fees
      and the reasonable fees and expenses of counsel for the Underwriters
      relating to such registration and qualification); (vi) any filings
      required to be made with the NASD, Inc. (including filing fees and the
      reasonable fees and expenses of counsel for the Underwriters relating to
      such filings); (vii) all of the Company's roadshow expenses, including the
      transportation and other expenses incurred by or on behalf of Company
      representatives in connection with presentations to prospective purchasers
      of the Shares; (viii) the fees and expenses of the Company's accountants
      and the fees and expenses of counsel (including local and special counsel)
      for the Company and the Selling Shareholder; and (ix) all other costs and
      expenses incident to the performance by the Company and the Selling
      Shareholder of their obligations hereunder.

            (b) The Selling Shareholder will not, during the period commencing
      on the date hereof and ending 60 days after the date of the Final
      Prospectus, without the prior written consent of Citigroup Global Markets
      Inc., offer, sell, contract to sell, pledge or otherwise dispose of, (or
      enter into any transaction which is designed to, or might reasonably be
      expected to, result in the disposition (whether by actual disposition or
      effective economic disposition due to cash settlement or otherwise) by the
      Selling Shareholder or any affiliate of the Selling Shareholder or any
      person in privity with the Selling Shareholder or any affiliate of the
      Selling Shareholder) directly or indirectly, or file (or participate in
      the filing of) a registration statement with the Commission in respect of,
      or establish or increase a put equivalent position or liquidate or
      decrease a call equivalent position within the meaning of Section 16 of
      the Exchange Act with respect to, any shares of Common Stock of the
      Company or any securities convertible into or exercisable or exchangeable
      for, shares of Common Stock; or publicly announce an intention to effect
      any such transaction other than shares of Common Stock disposed of as bona
      fide gifts approved by Citigroup Global Markets Inc. Notwithstanding the
      foregoing, if (x) during the last 17 days of the restricted period the
      Company issues an earnings release or material news or a material event
      relating to the Company occurs, or (y) prior to the expiration of the
      restricted period, the Company announces that it will release earnings
      results during the 16-day period beginning on the last day of the
      restricted period, the restrictions imposed in this clause shall continue
      to apply until the expiration of the 18-day period beginning on the
      issuance of the earnings release or the occurrence of the material news or
      material event.

            (c) The Selling Shareholder will not take, directly or indirectly,
      any action designed to or that would constitute or that might reasonably
      be expected

                                      -28-


      to cause or result in, under the Exchange Act or otherwise, stabilization
      or manipulation of the price of any security of the Company to facilitate
      the sale or resale of the Shares.

            (d) The Selling Shareholder will advise you promptly, and if
      requested by you, will confirm such advice in writing, so long as delivery
      of a prospectus relating to the Shares by an underwriter or dealer may be
      required under the Act, of any change in information in the Registration
      Statement, the Final Prospectus, any Preliminary Prospectus or any Issuer
      Free Writing Prospectus or any amendment or supplement thereto relating to
      such Selling Shareholder.

            (e) Such Selling Shareholder represents that it has not prepared or
      had prepared on its behalf or used or referred to, and agrees that it will
      not prepare or have prepared on its behalf or use or refer to, any Free
      Writing Prospectus, and has not distributed and will not distribute any
      written materials in connection with the offer or sale of the Shares.

            8. Indemnity and Contribution. (a) The Company agrees to indemnify
and hold harmless each Underwriter, the directors, officers, employees and
agents of each Underwriter and each person, if any, who controls any Underwriter
within the meaning of either Section 15 of the Securities Act or Section 20 of
the Exchange Act and each affiliate of any Underwriter within the meaning of
Rule 405 under the Securities Act, from and against any and all losses, claims,
damages and liabilities (including, without limitation, any legal or other
expenses reasonably incurred in connection with defending or investigating any
such action or claim) caused by any untrue statement or alleged untrue statement
of a material fact contained in the Registration Statement or any amendment
thereof, or in the Basic Prospectus, the Disclosure Package, the Final
Prospectus or any Issuer Free Writing Prospectus, or in any amendment thereof or
supplement thereto, or caused by any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, except insofar as such losses, claims,
damages or liabilities are caused by any such untrue statement or omission or
alleged untrue statement or omission based upon the Selling Shareholder
Information or information relating to any Underwriter furnished to the Company
in writing by such Underwriter through you expressly for use therein.

            (b) The Selling Shareholder severally agrees to indemnify and hold
      harmless the Company, each of its directors, each of its officers who
      signs the Registration Statement, each Underwriter, the directors,
      officers, employees and agents of each Underwriter and each person who
      controls the Company or any Underwriter within the meaning of either the
      Act or the Exchange Act and each other Selling Shareholder, if any, to the
      same extent as the foregoing indemnity from the Company to each
      Underwriter, but only with reference to the Selling Shareholder
      Information and except insofar as such losses, claims, damages or
      liabilities are caused by any such untrue statement or omission or alleged
      untrue statement or omission based upon any information provided by the
      Company or

                                      -29-


      information relating to any Underwriter furnished to the Company in
      writing by such Underwriter through you expressly for use therein. This
      indemnity agreement will be in addition to any liability which any Selling
      Shareholder may otherwise have.

            (c) Each Underwriter agrees, severally and not jointly, to indemnify
      and hold harmless the Company, its directors, its officers who sign the
      Registration Statement and each person, if any, who controls the Company
      within the meaning of either Section 15 of the Securities Act or Section
      20 of the Exchange Act and the Selling Shareholder, to the same extent as
      the foregoing indemnity from the Company to such Underwriter, but only
      with reference to information relating to such Underwriter furnished to
      the Company in writing by such Underwriter through you expressly for use
      in the documents referred to in the foregoing indemnity. The Company and
      the Selling Shareholder acknowledge that the statements set forth (i) in
      the last paragraph of the cover page regarding delivery of the Shares and,
      under the heading "Underwriting", (ii) the list of Underwriters and their
      respective participation in the sale of the Shares, (iii) the sentences
      related to concessions and reallowances and (iv) the paragraph related to
      stabilization, syndicate covering transactions and penalty bids in the
      Preliminary Prospectus and the Final Prospectus constitute the only
      information furnished in writing by or on behalf of the several
      Underwriters for inclusion in the Preliminary Prospectus, the Final
      Prospectus or any Issuer Free Writing Prospectus.

            (d) In case any proceeding (including any governmental
      investigation) shall be instituted involving any person in respect of
      which indemnity may be sought pursuant to Section 8(a), 8(b) or 8(c), such
      person (the "INDEMNIFIED PARTY") shall promptly notify the person against
      whom such indemnity may be sought (the "INDEMNIFYING PARTY") in writing
      and the indemnifying party, upon request of the indemnified party, shall
      retain counsel reasonably satisfactory to the indemnified party to
      represent the indemnified party and any others the indemnifying party may
      designate in such proceeding and shall pay the fees and disbursements of
      such counsel related to such proceeding. In any such proceeding, any
      indemnified party shall have the right to retain its own counsel, but the
      fees and expenses of such counsel shall be at the expense of such
      indemnified party unless: (i) the indemnifying party and the indemnified
      party shall have mutually agreed to the retention of such counsel; or (ii)
      the named parties to any such proceeding (including any impleaded parties)
      include both the indemnifying party and the indemnified party and
      representation of both parties by the same counsel would be inappropriate
      due to actual or potential differing interests between them. It is
      understood that the indemnifying party shall not, in respect of the legal
      expenses of any indemnified party in connection with any proceeding or
      related proceedings in the same jurisdiction, be liable for the reasonable
      fees and expenses of more than one separate firm (in addition to any local
      counsel) for all such indemnified parties and that all such reasonable
      fees

                                      -30-


      and expenses shall be reimbursed as they are incurred. Such firm shall be
      designated in writing by Citigroup Global Markets Inc. in the case of
      parties indemnified pursuant to Sections 8(a) and 8(b) and by the Company,
      in the case of parties indemnified pursuant to Section 8(b). The
      indemnifying party shall not be liable for any settlement of any
      proceeding effected without its written consent, but if settled with such
      consent or if there be a final judgment for the plaintiff, the
      indemnifying party agrees to indemnify the indemnified party from and
      against any loss or liability by reason of such settlement or judgment. No
      indemnifying party shall, without the prior written consent of the
      indemnified party, effect any settlement of any pending or threatened
      proceeding in respect of which any indemnified party is or could have been
      a party and indemnity could have been sought hereunder by such indemnified
      party, unless such settlement includes an unconditional release of such
      indemnified party from all liability on claims that are the subject matter
      of such proceeding and does not include a statement as to or an admission
      of fault, culpability or a failure to act, by or on behalf of any
      indemnified party.

            (e) Subject to Section 8(h), to the extent the indemnification
      provided for in Section 8(a), 8(b) or 8(c) is unavailable to an
      indemnified party or insufficient in respect of any losses, claims,
      damages or liabilities referred to therein, then each indemnifying party
      under such paragraph, in lieu of indemnifying such indemnified party
      thereunder, shall contribute to the amount paid or payable by such
      indemnified party as a result of such losses, claims, damages or
      liabilities: (i) in such proportion as is appropriate to reflect the
      relative benefits received by such indemnifying party or parties or their
      affiliates on the one hand and the indemnified party or parties on the
      other hand from the offering of the Shares; or (ii) if the allocation
      provided by clause 8(e)(i) above is not permitted by applicable law, in
      such proportion as is appropriate to reflect not only the relative
      benefits referred to in clause 8(e)(i) above but also the relative fault
      of such indemnifying party or parties on the one hand and of indemnified
      party or parties or their affiliates on the other hand in connection with
      the statements or omissions that resulted in such losses, claims, damages
      or liabilities, as well as any other relevant equitable considerations.
      The relative benefits received by the Company and the Selling Shareholder
      on the one hand and the Underwriters on the other hand in connection with
      the offering of the Shares shall be deemed to be in the same respective
      proportions as the net proceeds from the offering of the Shares (before
      deducting expenses) received by the Company and it affiliates and the
      total underwriting discounts and commissions received by the Underwriters,
      in each case as set forth in the table on the cover of the Final
      Prospectus, bear to the aggregate Public Offering Price of the Shares. The
      relative fault of the Company and its affiliates on the one hand and the
      Underwriters on the other hand shall be determined by reference to, among
      other things, whether the untrue or alleged untrue statement of a material
      fact or the omission or alleged omission to state a material fact relates
      to information supplied by the Company, the Selling Shareholder or by the
      Underwriters and the

                                      -31-


      parties' relative intent, knowledge, access to information and opportunity
      to correct or prevent such statement or omission. The Underwriters'
      respective obligations to contribute pursuant to this Section 8 are
      several in proportion to the respective number of Shares they have
      purchased hereunder, and not joint.

            (f) The Company, the Selling Shareholder and the Underwriters agree
      that it would not be just or equitable if contribution pursuant to this
      Section 8 were determined by pro rata allocation (even if the Underwriters
      were treated as one entity for such purpose) or by any other method of
      allocation that does not take account of the equitable considerations
      referred to in Section 8(d). The amount paid or payable by an indemnified
      party as a result of the losses, claims, damages and liabilities referred
      to in the immediately preceding paragraph shall be deemed to include,
      subject to the limitations set forth above, any legal or other expenses
      reasonably incurred by such indemnified party in connection with
      investigating or defending any such action or claim. Notwithstanding the
      provisions of this Section 8, no Underwriter shall be required to
      contribute any amount in excess of the amount by which the total price at
      which the Shares underwritten by it and distributed to the public were
      offered to the public exceeds the amount of any damages that such
      Underwriter has otherwise been required to pay by reason of such untrue or
      alleged untrue statement or omission or alleged omission. No person guilty
      of fraudulent misrepresentation (within the meaning of Section 11(f) of
      the Securities Act) shall be entitled to contribution from any person who
      was not guilty of such fraudulent misrepresentation. The remedies provided
      for in this Section 8 are not exclusive and shall not limit any rights or
      remedies which may otherwise be available to any indemnified party at law
      or in equity.

            (g) The indemnity and contribution provisions contained in this
      Section 7 and the representations, warranties and other statements of the
      Company and the Selling Shareholder contained in this Agreement shall
      remain operative and in full force and effect regardless of: (i) any
      termination of this Agreement; (ii) any investigation made by or on behalf
      of any Underwriter or any person controlling any Underwriter or any
      affiliate of any Underwriter or by or on behalf of the Selling Shareholder
      or the Company, its officers or directors or any person controlling the
      Company or the Selling Shareholder; and (iii) acceptance of and payment
      for any of the Shares.

            (h) The liability of the Selling Shareholder under the Selling
      Shareholder's representations and warranties contained in Section 2 hereof
      and under the indemnity and contribution agreements contained in this
      Section 8 shall be limited to an amount equal to the initial public
      offering price of the Shares sold by the Selling Shareholder to the
      Underwriters. The Company and the Selling Shareholder may agree, as among
      themselves and without limiting the rights of the Underwriters under this
      Agreement, as to the respective amounts of such liability for which they
      each shall be responsible.


                                      -32-



            9. Termination. This Agreement shall be subject to termination by
notice given by you to the Company, if after the execution and delivery of this
Agreement and prior to the Closing Date: (i) trading generally shall have been
suspended or materially limited on or by, as the case may be, any of the New
York Stock Exchange, the American Stock Exchange, the Nasdaq National Market
System, the Nasdaq Global Select Market, the Chicago Board of Options Exchange,
the Chicago Mercantile Exchange or the Chicago Board of Trade, (ii) trading of
any securities of the Company shall have been suspended on any exchange or in
any over-the-counter market, (iii) a material disruption in securities
settlement, payment or clearance services in the United States shall have
occurred, (iv) a general moratorium on commercial banking activities in New York
shall have been declared by either Federal or New York State authorities or in
Bermuda by Bermuda authorities, or (v) there shall have occurred any outbreak or
escalation of hostilities or any change in financial markets or any calamity or
crisis that, in your judgment, is material and adverse; and in the case of any
of the events specified 10(a)(i) through 10(a)(v), singly or together with any
other event, makes it, in your judgment, impracticable or inadvisable to proceed
with the offer, sale, or delivery of the Shares on the terms and in the manner
contemplated in the Disclosure Package and the Final Prospectus.

            10. Effectiveness; Defaulting Underwriters. (a) This Agreement shall
become effective upon the execution and delivery hereof by the parties hereto.

            (b) If, on the Closing Date or the Option Closing Date, as the case
may be, any one or more of the Underwriters shall fail or refuse to purchase
Shares that it has or they have agreed to purchase hereunder on such date, and
the aggregate number of Shares which such defaulting Underwriter or Underwriters
agreed but failed or refused to purchase is not more than one-twelfth of the
aggregate number of the Shares to be purchased on such date, the other
Underwriters shall be obligated severally in the proportions that the number of
Firm Shares set forth opposite their respective names in Schedule I bears to the
aggregate number of Firm Shares set forth opposite the names of all such
non-defaulting Underwriters, or in such other proportions as you may specify, to
purchase the Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase on such date; provided, that in no event shall the
number of Shares that any Underwriter has agreed to purchase pursuant to this
Agreement be increased pursuant to this Section 10 by an amount in excess of
one-ninth of such number of Shares without the written consent of such
Underwriter. If, on the Closing Date, any Underwriter or Underwriters shall fail
or refuse to purchase Firm Shares and the aggregate number of Firm Shares with
respect to which such default occurs is more than one-twelfth of the aggregate
number of Firm Shares to be purchased, and arrangements satisfactory to you, the
Selling Shareholder and the Company for the purchase of such Firm Shares are not
made within 36 hours after such default, this Agreement shall terminate without
liability on the part of any non-defaulting Underwriter, the Selling Shareholder
or the Company. In any such case either you, the Selling Shareholder or the
Company shall have the right to postpone the Closing Date, but in no event for
longer than seven days, in order that the required changes, if any, in the
Registration Statement

                                      -33-


and in the Final Prospectus or in any other documents or arrangements may be
effected. If, on the Option Closing Date, any Underwriter or Underwriters shall
fail or refuse to purchase Additional Shares and the aggregate number of
Additional Shares with respect to which such default occurs is more than
one-twelfth of the aggregate number of Additional Shares to be purchased, the
non-defaulting Underwriters shall have the option to (i) terminate their
obligation hereunder to purchase Additional Shares or (ii) purchase not less
than the number of Additional Shares that such non- defaulting Underwriters
would have been obligated to purchase in the absence of such default. Any action
taken under this paragraph shall not relieve any defaulting Underwriter from
liability in respect of any default of such Underwriter under this Agreement.

            (c) If this Agreement shall be terminated by the Underwriters, or
any of them, because of any failure or refusal on the part of the Selling
Shareholder or the Company to comply with the terms or to fulfill any of the
conditions of this Agreement, or if for any reason the Selling Shareholder or
the Company shall be unable to perform its obligations under this Agreement
(other than pursuant to the foregoing paragraphs of this Section 10), the
Company and the Selling Shareholder will be jointly liable to reimburse the
Underwriters or such Underwriters as have so terminated this Agreement with
respect to themselves, severally, for all out-of-pocket expenses (including the
fees and disbursements of their counsel) reasonably incurred by such
Underwriters in connection with this Agreement or the offering contemplated
hereunder.

            11. Submission to Jurisdiction; Appointment of Agent for Service. In
further consideration of the agreement of the Underwriters herein contained, the
Company irrevocably agrees and covenants that any legal suit, action or
proceeding against the Company brought by any Underwriter or by any person who
controls such Underwriter within the meaning of either Section 15 of the
Securities Act of Section 20 of the Exchange Act (a "CONTROL PERSON") arising
out of or based upon this Agreement or the transactions contemplated hereby may
be instituted in any New York Court, and irrevocably waives any objection which
it may now or hereafter have to the laying of venue of any such proceeding,
irrevocably waives any objection based on the absence of a necessary or
indispensable party in any such proceeding and irrevocably submits to the
non-exclusive jurisdiction of such courts in any such suit, action or
proceeding. The Company irrevocably waives any immunity to jurisdiction to which
it may otherwise be entitled or become entitled (including immunity to
pre-judgment attachment and execution) in any legal suit, action or proceeding
against it arising out of this Agreement or the transactions contemplated hereby
which is instituted in any New York Court, or in any Bermuda court. To the
extent permitted by law, Company hereby waives any objection to the enforcement
by any competent foreign court of any judgment validly obtained in any such
proceeding. The Company designates and appoints CT Corporation System in The
City of New York at 111 Eighth Avenue, New York, NY 10011, as its respective
authorized agent (the "AUTHORIZED AGENT") upon which process may be served in
any such action arising out of or based on this Agreement or the transactions
contemplated hereby which may be instituted in any New York Court by any
Underwriter or by any Control Person, expressly consents to the non-exclusive
jurisdiction of any

                                      -34-


such court in respect of any such action, and waives any other requirements of
or objections to personal jurisdiction with respect thereto. Such appointments
shall be irrevocable. The Company represents and warrants that the Authorized
Agent has agreed to act as said agent for service of process and the Company
agrees to take any and all action, including the filing of any and all documents
and instruments, that may be necessary to continue such appointment in full
force and effect as aforesaid. Service of process upon the Company's Authorized
Agent and written notice of such service of process to it shall be deemed, in
every respect, effective service of process upon the Company. Notwithstanding
the foregoing, any action based on this Agreement or the transactions
contemplated hereby may be instituted by any Underwriter or any Control Person
in any competent foreign court.

            12. Judgment Currency. In respect of any judgment or order given or
made for any amount due hereunder that is expressed and paid in currency (the
"JUDGMENT CURRENCY") other than United States dollars, the party against whom
such judgment or order has been given or made (the "INDEMNITOR") will indemnify
each party in whose favor such judgment or order has been given or made (the
"INDEMNITEE") against any loss incurred by such Indemnitee as a result of any
variation as between (i) the rate of exchange at which the United States dollar
amount is converted into the judgment currency for the purpose of such judgment
or order and (ii) the rate of exchange at which the Indemnitee is able to
purchase United States dollars with the amount of the judgment currency actually
received by such Indemnitee. The foregoing indemnity shall constitute a separate
and independent obligation of the Company, the Selling Shareholder, and the
Underwriters and shall continue in full force and effect notwithstanding any
such judgment or order as aforesaid. The term "rate of exchange" shall include
any reasonable premiums and costs of exchange payable in connection with the
purchase of or conversion into United States dollars.

            13. No Fiduciary Duty. The Company and the Selling Shareholder
acknowledge that in connection with the offering of the Shares: (i) the
Underwriters have acted at arms length, are not agents of, and owe no fiduciary
duties to, the Company, or the Selling Shareholder or any other person, (ii) the
Underwriters owe the Company and the Selling Shareholder only those duties and
obligations set forth in this Agreement and (iii) the Underwriters may have
interests that differ from those of the Company and the Selling Shareholder. The
Company and the Selling Shareholder waive to the full extent permitted by
applicable law any claims they may have against the Underwriters arising from an
alleged breach of fiduciary duty in connection with the offering of the Shares.

            14. Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

            15. Applicable Law. This Agreement shall be governed by and
construed in accordance with the internal laws of the State of New York.


                                      -35-



            16. Headings. The headings of the sections of this Agreement have
been inserted for convenience of reference only and shall not be deemed a part
of this Agreement.

            17. Notices. All communications hereunder will be in writing and
effective only on receipt, and, if sent to the Representative, will be mailed,
delivered or telefaxed to the Citigroup Global Markets Inc. General Counsel (fax
no.: (212) 816-7912) and confirmed to the General Counsel, Citigroup Global
Markets Inc., at 388 Greenwich Street, New York, New York, 10013, Attention:
General Counsel; and to the Global Capital Markets Syndicate Desk or, if sent to
the Company, will be mailed, delivered or telefaxed to 441-292-8085 and
confirmed to it at 441-298-5100 , Attention: Corporate Secretary; or if sent to
the Selling Shareholder will be mailed, delivered or telefaxed to American
International Group, Inc., Attention: Corporate Secretary, 70 Pine Street, New
York, New York 10270 (fax no.: (212) 785-1584).

            18. Integration. This Agreement supersedes all prior agreements and
understandings (whether written or oral) between the Company and the
Underwriters, or any of them, with respect to the subject matter hereof.

            19. Waiver of Jury Trial. The Company and the Selling Shareholder
hereby irrevocably waive, to the fullest extent permitted by applicable law, any
and all right to trial by jury in any legal proceeding arising out of or
relating to this Agreement or the transactions contemplated hereby.

            20. Definitions. The terms that follow, when used in this Agreement,
shall have the meanings indicated.

            "Act" shall mean the Securities Act of 1933, as amended, and the
      rules and regulations of the Commission promulgated thereunder.

            "Basic Prospectus" shall mean the base prospectus referred to in
      paragraph 1(a) above contained in the Registration Statement at the
      Execution Time.

            "Business Day" shall mean any day other than a Saturday, a Sunday or
      a legal holiday or a day on which banking institutions or trust companies
      are authorized or obligated by law to close in New York City.

            "Commission" shall mean the Securities and Exchange Commission.

            "Disclosure Package" shall mean (i) the Basic Prospectus, (ii) the
      Preliminary Prospectus used most recently prior to the Execution Time and
      (iii) any Free Writing Prospectus that the parties hereto shall hereafter
      expressly agree in writing to treat as part of the Disclosure Package.


                                      -36-



            "Effective Date" shall mean each date and time that the Registration
      Statement and any post-effective amendment or amendments thereto became or
      becomes effective.

            "Exchange Act" shall mean the Securities Exchange Act of 1934, as
      amended, and the rules and regulations of the Commission promulgated
      thereunder.

            "Execution Time" shall mean the date and time that this Agreement is
      executed and delivered by the parties hereto.

            "Final Prospectus" shall mean the prospectus supplement relating to
      the Shares that was first filed pursuant to Rule 424(b) after the
      Execution Time, together with the Basic Prospectus.

            "Free Writing Prospectus" shall mean a free writing prospectus, as
      defined in Rule 405.

            "Issuer Free Writing Prospectus" shall mean an issuer free writing
      prospectus, as defined in Rule 433.

            "Preliminary Prospectus" shall mean any preliminary prospectus
      supplement to the Basic Prospectus referred to in paragraph 1(a) above
      which is used prior to the filing of the Final Prospectus, together with
      the Basic Prospectus.

            "Registration Statement" shall mean the registration statement
      referred to in paragraph 1(i)(a) above, including exhibits and financial
      statements and any prospectus supplement relating to the Shares that is
      filed with the Commission pursuant to Rule 424(b) and deemed part of such
      registration statement pursuant to Rule 430B, as amended on each Effective
      Date and, in the event any post-effective amendment thereto becomes
      effective prior to the Closing Date, shall also mean such registration
      statement as so amended.

            "Rule 158", "Rule 163", "Rule 164", "Rule 172", "Rule 405", "Rule
      415", "Rule 424", "Rule 430B" and "Rule 433" refer to such rules under the
      Act.

            "Selling Shareholder Information" means the second sentence in the
      first paragraph under "IPC Holdings, Ltd. - Relationship with AIG" and the
      table under "Secondary Sale by AIG" in the Preliminary Prospectus and the
      last half of the first sentence in "IPC Holdings - Relationship with AIG"
      and the table in "Plan of Distribution - Secondary Sales by AIG" in the
      Basic Prospectus.

            "Well-Known Seasoned Issuer" shall mean a well-known seasoned
      issuer, as defined in Rule 405.


                                      -37-

                                  Very truly yours,

                                  IPC HOLDINGS, LTD.


                                  By:  /s/ James Bryce
                                       -----------------------------------------
                                       Name:     James Bryce
                                       Title:    President and CEO


                                  AMERICAN INTERNATIONAL GROUP, INC.


                                  By:  /s/Brian Schreiber
                                       -----------------------------------------
                                       Name:     Brian Schreiber
                                       Title:    Senior Vice President-Strategic
                                                 Planning



Accepted as of the date hereof:



By:  CITIGROUP GLOBAL MARKETS INC.


     By:  /s/ Gautam Chawla
          -------------------------------
          Name:     Gautam Chawla
          Title:    Director




                                                                      SCHEDULE I

NUMBER OF FIRM SHARES UNDERWRITERS TO BE PURCHASED ------------ --------------- Citigroup Global Markets Inc........................... 5,358,800 Morgan Stanley & Co. Incorporated...................... 2,679,400 Keefe, Bruyette & Woods, Inc. ......................... 1,339,700 HSBC Securities (USA) Inc. ............................ 1,004,775 Wachovia Capital Markets, LLC.......................... 1,004,775 Dowling & Partners Securities, LLC..................... 669,850 Ferris, Baker Watts, Inc............................... 669,850 Fox-Pitt, Kelton Incorporated ........................ 669,850 Total................................ 13,397,000 ==========
II-1 EXHIBIT A-1 [FORM OF OFFICER/DIRECTOR LOCK-UP] [Date] Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 Dear Sirs and Mesdames: The undersigned understands that the Representative proposes to enter into an Underwriting Agreement (the "UNDERWRITING AGREEMENT") with American International Group, Inc., a Delaware corporation (the "SELLING SHAREHOLDER") and IPC Holdings, Ltd., a Bermuda company (the "COMPANY") providing for the public offering (the "PUBLIC OFFERING") by the several Underwriters, (the "UNDERWRITERS"), of the Selling Shareholder's 13,397,000 shares (the "SHARES") of the Common Shares, $.01 par value per share, of the Company (the "COMMON Stock"). To induce the Underwriters that may participate in the Public Offering to continue their efforts in connection with the Public Offering, the undersigned hereby agrees that, without the prior written consent of the Representative on behalf of the Underwriters, the undersigned will not, during the period commencing on the date hereof and ending 60 days after the date of the final prospectus relating to the Public Offering (the "PROSPECTUS"), (1) offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or (2) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise. In addition, the undersigned agrees that, without the prior written consent of the Representative on behalf of the Underwriters, it will not, during the period commencing on the date hereof and ending 60 days after the date of the Final Prospectus, make any demand for or exercise any right with respect to, the registration of any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock. The undersigned also agrees and consents to the entry of stop transfer instructions with the Company's transfer agent and registrar against the transfer of the undersigned's shares of Common Stock except in compliance with the foregoing restrictions. The undersigned understands that the Company, the Selling Shareholder and the Underwriters are relying upon this Lock-Up Agreement in proceeding toward consummation of the Public Offering. The undersigned further understands that this Lock-Up Agreement is irrevocable and shall be binding upon the undersigned's heirs, legal representatives, successors and assigns. Whether or not the Public Offering actually occurs depends on a number of factors, including market conditions. Any Public Offering will only be made pursuant to an Underwriting Agreement, the terms of which are subject to negotiation between the Company and the Underwriters. Very truly yours, ------------------------------------------- (Name) ------------------------------------------- (Address) A-3-2