UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                 SCHEDULE 13D/A
                                (Amendment No. 4)

                   Under the Securities Exchange Act of 1934*


                               Capital Trust, Inc.
     ---------------------------------------------------------------------
                                (Name of Issuer)

                 Class A Common Stock, Par Value $0.01 Per Share
     ---------------------------------------------------------------------
                         (Title of Class of Securities)

                                    14052H100
     ---------------------------------------------------------------------
                                 (CUSIP Number)

                                 Ira S. Lederman
         Senior Vice President - General Counsel and Corporate Secretary
                            W. R. Berkley Corporation
                               475 Steamboat Road
                          Greenwich, Connecticut 06830
                                 (203) 629-3000
     ---------------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                   Copies to:

                            Jeffrey S. Hochman, Esq.
                          Willkie Farr & Gallagher LLP
                               787 Seventh Avenue
                          New York, New York 10019-6099
                                 (212) 728-8000

                                  July 30, 2007
     ---------------------------------------------------------------------
                          (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 that is the subject of this Schedule 13D, and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box: [ ]

NOTE: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 240.13d-7 for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).





                                  SCHEDULE 13D

--------------------------------------
CUSIP No. 14052H100
--------------------------------------


----------- --------------------------------------------------------------------
    1       NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION

            W. R. Berkley Corporation
----------- --------------------------------------------------------------------
    2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
            (See Instructions)                                        (a) [ ]
                                                                      (b) [ ]
----------- --------------------------------------------------------------------
    3       SEC USE ONLY

----------- --------------------------------------------------------------------
    4       SOURCE OF FUNDS (See Instructions)

            WC
----------- --------------------------------------------------------------------
    5       CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
            PURSUANT TO ITEMS 2(d) or 2(e)

----------- --------------------------------------------------------------------
    6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Delaware
--------------------- --------- ------------------------------------------------
                         7      SOLE VOTING POWER

                                2,885,200*
                      --------- ------------------------------------------------
NUMBER OF                8      SHARED VOTING POWER
SHARES
BENEFICIALLY                    0
OWNED BY EACH         --------- ------------------------------------------------
REPORTING                9      SOLE DISPOSITIVE POWER
PERSON WITH
                                2,885,200*
                      --------- ------------------------------------------------
                         10     SHARED DISPOSITIVE POWER

                                0
----------- --------------------------------------------------------------------
    11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            2,885,200*
----------- --------------------------------------------------------------------
    12      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
            CERTAIN SHARES (See Instructions)

----------- --------------------------------------------------------------------
    13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            16.5%*
----------- --------------------------------------------------------------------
    14      TYPE OF REPORTING PERSON (See Instructions)

            CO
----------- --------------------------------------------------------------------


* See Items 4 through 6.





                                  SCHEDULE 13D

--------------------------------------
CUSIP No. 14052H100
--------------------------------------


----------- --------------------------------------------------------------------
    1       NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION

            Admiral Insurance Company
----------- --------------------------------------------------------------------
    2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
            (See Instructions)                                        (a) [ ]
                                                                      (b) [ ]
----------- --------------------------------------------------------------------
    3       SEC USE ONLY

----------- --------------------------------------------------------------------
    4       SOURCE OF FUNDS (See Instructions)

            WC
----------- --------------------------------------------------------------------
    5       CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
            PURSUANT TO ITEMS 2(d) or 2(e)

----------- --------------------------------------------------------------------
    6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Delaware
--------------------- --------- ------------------------------------------------
                         7      SOLE VOTING POWER

                                500,000*
                      --------- ------------------------------------------------
NUMBER OF                8      SHARED VOTING POWER
SHARES
BENEFICIALLY                    0
OWNED BY EACH         --------- ------------------------------------------------
REPORTING                9      SOLE DISPOSITIVE POWER
PERSON WITH
                                500,000*
                      --------- ------------------------------------------------
                         10     SHARED DISPOSITIVE POWER

                                0
----------- --------------------------------------------------------------------
    11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            500,000*
----------- --------------------------------------------------------------------
    12      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
            CERTAIN SHARES (See Instructions)

----------- --------------------------------------------------------------------
    13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            2.9%*
----------- --------------------------------------------------------------------
    14      TYPE OF REPORTING PERSON (See Instructions)

            IC, CO
----------- --------------------------------------------------------------------


* See Items 4 through 6.





                                  SCHEDULE 13D

--------------------------------------
CUSIP No. 14052H100
--------------------------------------


----------- --------------------------------------------------------------------
    1       NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION

            Berkley Insurance Company
----------- --------------------------------------------------------------------
    2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
            (See Instructions)                                        (a) [ ]
                                                                      (b) [ ]
----------- --------------------------------------------------------------------
    3       SEC USE ONLY

----------- --------------------------------------------------------------------
    4       SOURCE OF FUNDS (See Instructions)

            WC
----------- --------------------------------------------------------------------
    5       CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
            PURSUANT TO ITEMS 2(d) or 2(e)

----------- --------------------------------------------------------------------
    6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Delaware
--------------------- --------- ------------------------------------------------
                         7      SOLE VOTING POWER

                                913,400*
                      --------- ------------------------------------------------
NUMBER OF                8      SHARED VOTING POWER
SHARES
BENEFICIALLY                    0
OWNED BY EACH         --------- ------------------------------------------------
REPORTING                9      SOLE DISPOSITIVE POWER
PERSON WITH
                                913,400*
                      --------- ------------------------------------------------
                         10     SHARED DISPOSITIVE POWER

                                0
----------- --------------------------------------------------------------------
    11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            913,400*
----------- --------------------------------------------------------------------
    12      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
            CERTAIN SHARES (See Instructions)

----------- --------------------------------------------------------------------
    13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            5.2%*
----------- --------------------------------------------------------------------
    14      TYPE OF REPORTING PERSON (See Instructions)

            IC, CO
----------- --------------------------------------------------------------------


* See Items 4 through 6.





                                  SCHEDULE 13D

--------------------------------------
CUSIP No. 14052H100
--------------------------------------


----------- --------------------------------------------------------------------
    1       NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION

            Berkley Regional Insurance Company
----------- --------------------------------------------------------------------
    2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
            (See Instructions)                                        (a) [ ]
                                                                      (b) [ ]
----------- --------------------------------------------------------------------
    3       SEC USE ONLY

----------- --------------------------------------------------------------------
    4       SOURCE OF FUNDS (See Instructions)

            WC
----------- --------------------------------------------------------------------
    5       CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
            PURSUANT TO ITEMS 2(d) or 2(e)

----------- --------------------------------------------------------------------
    6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Delaware
--------------------- --------- ------------------------------------------------
                         7      SOLE VOTING POWER

                                812,100*
                      --------- ------------------------------------------------
NUMBER OF                8      SHARED VOTING POWER
SHARES
BENEFICIALLY                    0
OWNED BY EACH         --------- ------------------------------------------------
REPORTING                9      SOLE DISPOSITIVE POWER
PERSON WITH
                                812,100*
                      --------- ------------------------------------------------
                         10     SHARED DISPOSITIVE POWER

                                0
----------- --------------------------------------------------------------------
    11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            812,100*
----------- --------------------------------------------------------------------
    12      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
            CERTAIN SHARES (See Instructions)

----------- --------------------------------------------------------------------
    13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            4.6%*
----------- --------------------------------------------------------------------
    14      TYPE OF REPORTING PERSON (See Instructions)

            IC, CO
----------- --------------------------------------------------------------------


* See Items 4 through 6.





                                  SCHEDULE 13D

--------------------------------------
CUSIP No. 14052H100
--------------------------------------


----------- --------------------------------------------------------------------
    1       NAMES OF REPORTING PERSONS
            I.R.S. IDENTIFICATION

            Nautilus Insurance Company
----------- --------------------------------------------------------------------
    2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
            (See Instructions)                                        (a) [ ]
                                                                      (b) [ ]
----------- --------------------------------------------------------------------
    3       SEC USE ONLY

----------- --------------------------------------------------------------------
    4       SOURCE OF FUNDS (See Instructions)

            WC
----------- --------------------------------------------------------------------
    5       CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED
            PURSUANT TO ITEMS 2(d) or 2(e)

----------- --------------------------------------------------------------------
    6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Arizona
--------------------- --------- ------------------------------------------------
                         7      SOLE VOTING POWER

                                659,700*
                      --------- ------------------------------------------------
NUMBER OF                8      SHARED VOTING POWER
SHARES
BENEFICIALLY                    0
OWNED BY EACH         --------- ------------------------------------------------
REPORTING                9      SOLE DISPOSITIVE POWER
PERSON WITH
                                659,700*
                      --------- ------------------------------------------------
                         10     SHARED DISPOSITIVE POWER

                                0
----------- --------------------------------------------------------------------
    11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            659,700*
----------- --------------------------------------------------------------------
    12      CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
            CERTAIN SHARES (See Instructions)

----------- --------------------------------------------------------------------
    13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            3.8%*
----------- --------------------------------------------------------------------
    14      TYPE OF REPORTING PERSON (See Instructions)

            IC, CO
----------- --------------------------------------------------------------------


* See Items 4 through 6.





This Amendment No. 4 to Schedule 13D ("Amendment No. 4") is being filed on
behalf of W. R. Berkley Corporation, a Delaware corporation ("Berkley"), Admiral
Insurance Company, a Delaware corporation ("Admiral"), Berkley Insurance
Company, a Delaware corporation ("BIC"), Berkley Regional Insurance Company, a
Delaware corporation ("BRIC"), and Nautilus Insurance Company, an Arizona
corporation ("Nautilus" and, together with Berkley, Admiral, BIC and BRIC, the
"Reporting Persons"). Amendment No. 4 relates to shares of Class A Common Stock,
par value $0.01 per share (the "Common Stock"), of Capital Trust, Inc., a
Maryland corporation (the "Issuer"). Amendment No. 4 amends and supplements the
Schedule 13D, dated May 11, 2004 ("Original Schedule 13D"), as filed with the
Securities and Exchange Commission (the "Commission") on May 21, 2004, as
amended by Amendment No. 1 to Schedule 13D, dated June 17, 2004, as filed with
the Commission on June 21, 2004, Amendment No. 2 to the Schedule 13D, dated
September 13, 2004, as filed with the Commission on September 13, 2004 and
Amendment No. 3 to the Schedule 13D, dated July 10, 2007, as filed with the
Commission on July 13, 2007 (together with the Original Schedule 13D, the
"Schedule 13D"), in connection with the purchase of an additional 413,100 shares
of Common Stock of the Issuer.

Item 3.        Source and Amount of Funds or Other Consideration.

     Item 3 of Schedule 13D is hereby amended by the addition of the following
information:

     The total amount of funds used by the Reporting Persons to purchase the
additional 413,100 securities of the Issuer as described herein was furnished
from the working capital of BIC, BRIC and Nautilus. The total amount of funds
used by the Reporting Persons to purchase the securities of the Issuer as
described herein was approximately $12,900,153.16. BIC contributed approximately
$3,805,183.08, or 29.5%, of the total amount funds. BRIC contributed
approximately $4,139,441.98, or 32.1%, of the total amount of funds. Nautilus
contributed approximately $4,955,528.10, or 38.4% of the total amount of funds.

Item 5.        Interest in Securities of the Issuer.

     Item 5 of Schedule 13D is hereby amended and restated in its entirety as
follows:

     (a) Berkley may be deemed to beneficially own, in the aggregate, 2,885,200
shares of Common Stock, which represents 16.5% of the outstanding Common Stock
of the Issuer.

     (b) Since each of the Subsidiaries is either directly or indirectly owned
by Berkley, Berkley has the sole power to vote or to direct the vote and the
sole power to dispose or to direct the disposition of the 2,885,200 shares of
Common Stock it may be deemed to beneficially own.

     (c) Information concerning transactions in the securities of the Issuer
effected by the Reporting Persons since the most recent Schedule 13D filing is
set forth on Schedule


                                       7





I to this Schedule 13D and is incorporated by reference. The transactions were
effected in open market transactions on the New York Stock Exchange. Except as
set forth on Schedule I, since the most recent Schedule 13D filing there have
been no other transactions in the Common Stock effected by the Reporting
Persons, nor, to the best of their knowledge, any of the persons set forth on
Schedule II to this Schedule 13D.

     (d) Except as set forth in this Item 5, no person other than each
respective record owner of securities referred to herein is known to have the
right to receive or the power to direct the receipt of dividends from, or the
proceeds from the sale of, the securities discussed herein.

     (e) Not applicable.


                                       8





                                   SIGNATURES

     After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.


Dated: August 1, 2007              W.R. BERKLEY CORPORATION

                                   By:  /s/ William R. Berkley
                                       -----------------------------------------
                                   Name:      William R. Berkley
                                   Title:     Chairman of the Board and Chief
                                              Executive Officer

Dated: August 1, 2007              ADMIRAL INSURANCE COMPANY

                                   By:  /s/ Scott R. Barraclough
                                       -----------------------------------------
                                   Name:      Scott R. Barraclough
                                   Title:     Senior Vice President

Dated: August 1, 2007              BERKLEY INSURANCE COMPANY

                                   By:  /s/ Eugene G. Ballard
                                       -----------------------------------------
                                   Name:      Eugene G. Ballard
                                   Title:     Senior Vice President

Dated: August 1, 2007              BERKLEY REGIONAL INSURANCE
                                   COMPANY

                                   By:  /s/ Eugene G. Ballard
                                       -----------------------------------------
                                   Name:      Eugene G. Ballard
                                   Title:     Senior Vice President

Dated: August 1, 2007              NAUTILUS INSURANCE COMPANY

                                   By:  /s/ John M. Runberg
                                       -----------------------------------------
                                   Name:      John M. Runberg
                                   Title:     Senior Vice President






                                   SCHEDULE I
--------------------------------------------------------------------------------
                                 Trading History
                                 ---------------
-------------------- ---------------------------- ------------------------------
     Trade Date           Quantity Purchased           Price Per Share ($)
-------------------- ---------------------------- ------------------------------
      7/18/07                       600                       34.92
-------------------- ---------------------------- ------------------------------
      7/18/07                       600                       34.95
-------------------- ---------------------------- ------------------------------
      7/18/07                       500                       34.97
-------------------- ---------------------------- ------------------------------
      7/18/07                      1900                       34.98
-------------------- ---------------------------- ------------------------------
      7/18/07                       800                       34.99
-------------------- ---------------------------- ------------------------------
      7/18/07                      2300                       35.00
--- ---------------- ---------------------------- ------------------------------
      7/18/07                      1346                       35.02
-------------------- ---------------------------- ------------------------------
      7/18/07                      1200                       35.03
-------------------- ---------------------------- ------------------------------
      7/18/07                       354                       35.04
-------------------- ---------------------------- ------------------------------
      7/18/07                      3200                       35.05
-------------------- ---------------------------- ------------------------------
      7/18/07                      2900                       35.10
-------------------- ---------------------------- ------------------------------
      7/18/07                       600                       35.20
-------------------- ---------------------------- ------------------------------
      7/18/07                       400                       35.24
-------------------- ---------------------------- ------------------------------
      7/18/07                       100                       35.25
-------------------- ---------------------------- ------------------------------
      7/18/07                      2000                       35.50
-------------------- ---------------------------- ------------------------------
      7/26/07                       100                       31.85
-------------------- ---------------------------- ------------------------------
      7/26/07                       700                       31.87
-------------------- ---------------------------- ------------------------------
      7/26/07                       400                       31.90
-------------------- ---------------------------- ------------------------------
      7/30/07                       200                       30.67
-------------------- ---------------------------- ------------------------------
      7/30/07                      2500                       30.68
-------------------- ---------------------------- ------------------------------
      7/30/07                       400                       30.69
-------------------- ---------------------------- ------------------------------
      7/30/07                      3000                       30.70
-------------------- ---------------------------- ------------------------------
      7/30/07                      3400                       30.71
-------------------- ---------------------------- ------------------------------
      7/30/07                      1800                       30.72
-------------------- ---------------------------- ------------------------------
      7/30/07                       100                       30.73
-------------------- ---------------------------- ------------------------------
      7/30/07                       800                       30.74
-------------------- ---------------------------- ------------------------------
      7/30/07                     11000                       30.75
-------------------- ---------------------------- ------------------------------
      7/30/07                       900                       30.82
-------------------- ---------------------------- ------------------------------
      7/30/07                       200                       30.83
-------------------- ---------------------------- ------------------------------
      7/30/07                      3300                       30.85
-------------------- ---------------------------- ------------------------------
      7/30/07                       500                       30.86
-------------------- ---------------------------- ------------------------------
      7/30/07                       100                       30.87
-------------------- ---------------------------- ------------------------------
      7/30/07                     14800                       30.90
-------------------- ---------------------------- ------------------------------
      7/30/07                     10200                       30.91
-------------------- ---------------------------- ------------------------------
      7/30/07                      1900                       30.92
-------------------- ---------------------------- ------------------------------
      7/30/07                      1000                       30.93
-------------------- ---------------------------- ------------------------------
      7/30/07                      2200                       30.94
-------------------- ---------------------------- ------------------------------
      7/30/07                     33800                       30.95
-------------------- ---------------------------- ------------------------------
      7/30/07                      2300                       30.96
-------------------- ---------------------------- ------------------------------
      7/30/07                      3500                       30.97
-------------------- ---------------------------- ------------------------------
      7/30/07                      7500                       30.98
-------------------- ---------------------------- ------------------------------
      7/30/07                      6300                       30.99
-------------------- ---------------------------- ------------------------------
      7/30/07                      5900                       31.00
-------------------- ---------------------------- ------------------------------
      7/30/07                      2500                       31.10
-------------------- ---------------------------- ------------------------------
      7/30/07                       500                       31.15
-------------------- ---------------------------- ------------------------------
      7/30/07                       500                       31.17
-------------------- ---------------------------- ------------------------------
      7/30/07                       900                       31.18
-------------------- ---------------------------- ------------------------------
      7/30/07                       700                       31.19
-------------------- ---------------------------- ------------------------------
      7/30/07                     60700                       31.20
-------------------- ---------------------------- ------------------------------
      7/31/07                      6000                       30.50
-------------------- ---------------------------- ------------------------------
      7/31/07                      5200                       30.54
-------------------- ---------------------------- ------------------------------


                                       1





-------------------- ---------------------------- ------------------------------
     Trade Date           Quantity Purchased           Price Per Share ($)
-------------------- ---------------------------- ------------------------------
      7/31/07                     38800                       30.58
-------------------- ---------------------------- ------------------------------
      7/31/07                       300                       30.63
-------------------- ---------------------------- ------------------------------
      7/31/07                      4520                       30.65
-------------------- ---------------------------- ------------------------------
      7/31/07                      5180                       30.70
-------------------- ---------------------------- ------------------------------
      7/31/07                      9700                       30.75
-------------------- ---------------------------- ------------------------------
      7/31/07                       100                       30.79
-------------------- ---------------------------- ------------------------------
      7/31/07                     25463                       30.80
-------------------- ---------------------------- ------------------------------
      7/31/07                       400                       30.81
-------------------- ---------------------------- ------------------------------
      7/31/07                       800                       30.82
-------------------- ---------------------------- ------------------------------
      7/31/07                       100                       30.83
-------------------- ---------------------------- ------------------------------
      7/31/07                       400                       30.84
-------------------- ---------------------------- ------------------------------
      7/31/07                     12737                       30.85
-------------------- ---------------------------- ------------------------------
      7/31/07                    100000                       31.50
-------------------- ---------------------------- ------------------------------


                                        2





                                   SCHEDULE II

     Set forth below is the name, business address, and present principal
occupation of each of the executive officers and directors of the Reporting
Persons. Except as otherwise indicated, each person is a citizen of the United
States.

W. R. Berkley Corporation
-------------------------



------------------------------------- ----------------------------------- --------------------------------------
Name                                  Present Business Address            Present Principal Occupation
------------------------------------- ----------------------------------- --------------------------------------
                                                                    
Directors:
------------------------------------- ----------------------------------- --------------------------------------
William R. Berkley                    475 Steamboat Road                  Chairman of the Board and Chief
                                      Greenwich, Connecticut 06830        Executive Officer
------------------------------------- ----------------------------------- --------------------------------------
Phillip J. Ablove                     475 Steamboat Road                  Retired Executive Vice President and
                                      Greenwich, Connecticut 06830        Chief Financial Officer, Pioneer
                                                                          Companies, Inc.
------------------------------------- ----------------------------------- --------------------------------------
W. Robert Berkley, Jr.                475 Steamboat Road                  Executive Vice President
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------
Ronald E. Blaylock                    475 Steamboat Road                  Founder, Chairman and Chief
                                      Greenwich, Connecticut 06830        Executive Officer, Blaylock &
                                                                          Company, Inc. (investment banking
                                                                          firm)
------------------------------------- ----------------------------------- --------------------------------------
Mark E. Brockbank                     475 Steamboat Road                  Retired Chief Executive of XL
                                      Greenwich, Connecticut 06830        Brockbank LTD
------------------------------------- ----------------------------------- --------------------------------------
George G. Daly                        475 Steamboat Road                  Dean, McDonough School of Business,
                                      Greenwich, Connecticut 06830        Georgetown University
------------------------------------- ----------------------------------- --------------------------------------
Mary C. Farrell                       475 Steamboat Road                  Consultant to the financial services
                                      Greenwich, Connecticut 06830        industry
------------------------------------- ----------------------------------- --------------------------------------
Rodney A. Hawes, Jr.                  475 Steamboat Road                  Founder Insurance Investment
                                      Greenwich, Connecticut 06830        Associates (investment banking firm)
------------------------------------- ----------------------------------- --------------------------------------
Jack H. Nusbaum                       787 Seventh Avenue                  Chairman, Willkie Farr & Gallagher
                                      New York, New York 10019            LLP (attorneys at law)
------------------------------------- ----------------------------------- --------------------------------------
Mark L. Shapiro                       475 Steamboat Road                  Private Investor
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------


                                        1





------------------------------------- ----------------------------------- --------------------------------------
Executive Officers Not Otherwise Listed Above:
------------------------------------- ----------------------------------- --------------------------------------
Eugene G. Ballard                     475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Financial Officer and Treasurer
------------------------------------- ----------------------------------- --------------------------------------
Robert P. Cole                        475 Steamboat Road                  Senior Vice President - Regional
                                      Greenwich, Connecticut 06830        Operations
------------------------------------- ----------------------------------- --------------------------------------
Paul J. Hancock                       475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Corporate Actuary
------------------------------------- ----------------------------------- --------------------------------------
Robert W. Gosselink                   475 Steamboat Road                  Senior Vice President - Insurance
                                      Greenwich, Connecticut 06830        Risk Management
------------------------------------- ----------------------------------- --------------------------------------
Robert C. Hewitt                      475 Steamboat Road                  Senior Vice President - Excess and
                                      Greenwich, Connecticut 06830        Surplus Lines
------------------------------------- ----------------------------------- --------------------------------------
P  Peter L. Kamford                   475 Steamboat Road                  Senior Vice President -- Admitted
                                      Greenwich, Connecticut 06830        Specialty Lines
------------------------------------- ----------------------------------- --------------------------------------
Ira S. Lederman                       475 Steamboat Road                  Senior Vice President - General
                                      Greenwich, Connecticut 06830        Counsel and Corporate Secretary
------------------------------------- ----------------------------------- --------------------------------------
C. Fred Madsen                        475 Steamboat Road                  Senior Vice President -- Reinsurance
                                      Greenwich, Connecticut 06830        Operations
------------------------------------- ----------------------------------- --------------------------------------
James W. McCleary                     475 Steamboat Road                  Senior Vice President -- Underwriting
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------
James G. Shiel                        475 Steamboat Road                  Senior Vice President - Investments
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------
Robert D. Stone                       475 Steamboat Road                  Senior Vice President -- Alternative
                                      Greenwich, Connecticut 06830        Markets Operations
------------------------------------- ----------------------------------- --------------------------------------
Clement P. Patafio                    475 Steamboat Road                  Vice President - Corporate Controller
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------



                                        2





Admiral Insurance Company
-------------------------


------------------------------------- ----------------------------------- --------------------------------------
Name                                  Present Business Address            Present Principal Occupation
------------------------------------- ----------------------------------- --------------------------------------
                                                                    
Directors:
------------------------------------- ----------------------------------- --------------------------------------
W. Robert Berkley, Jr.                475 Steamboat Road                  Executive Vice President, W. R.
                                      Greenwich, Connecticut 06830        Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Eugene G. Ballard                     475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Financial Officer and Treasurer,
                                                                          W. R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Scott R. Barraclough                  1255 Caldwell Road                  Senior Vice President and Treasurer
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
James S. Carey                        1255 Caldwell Road                  President and Chief Executive Officer
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
Robert C. Hewitt                      475 Steamboat Road                  Senior Vice President - Excess and
                                      Greenwich, Connecticut 06830        Surplus Lines, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
Ira S. Lederman                       475 Steamboat Road                  Senior Vice President - General
                                      Greenwich, Connecticut 06830        Counsel and Secretary, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
Martin M. Michell                     1255 Caldwell Road                  Regional Vice President
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
Executive Officers Not Otherwise Listed Above:
------------------------------------- ----------------------------------- --------------------------------------
Daniel A. MacDonald                   1255 Caldwell Road                  Senior Vice President and Secretary
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
Curtis E. Fletcher                    1255 Caldwell Road                  Regional Vice President
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
John E. Goodloe                       1255 Caldwell Road                  President, Excess Division
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
William E. Haines                     1255 Caldwell Road                  Regional Vice President
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------
Raymond H. McDowell                   1255 Caldwell Road                  Regional Vice President
                                      Cherry Hill, New Jersey 08034
------------------------------------- ----------------------------------- --------------------------------------



                                        3



Berkley Insurance Company
-------------------------


------------------------------------- ----------------------------------- --------------------------------------
Name                                  Present Business Address            Present Principal Occupation
------------------------------------- ----------------------------------- --------------------------------------
                                                                    
Directors:
------------------------------------- ----------------------------------- --------------------------------------
William R. Berkley                    475 Steamboat Road                  Chairman of the Board and Chief
                                      Greenwich, Connecticut 06830        Executive Officer, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
W. Robert Berkley, Jr.                475 Steamboat Road                  Executive Vice President, W. R.
                                      Greenwich, Connecticut 06830        Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Eugene G. Ballard                     475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Financial Officer and Treasurer, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Craig N. Johnson                      475 Steamboat Road                  President and Chief Executive
                                      Greenwich, Connecticut 06830        Officer, Signet Star Re,
                                                                          LLC
------------------------------------- ----------------------------------- --------------------------------------
Carol J. LaPunzina                    475 Steamboat Road                  Senior Vice President, General
                                      Greenwich, Connecticut 06830        Counsel and Secretary
------------------------------------- ----------------------------------- --------------------------------------
Ira S. Lederman                       475 Steamboat Road                  Senior Vice President - General
                                      Greenwich, Connecticut 06830        Counsel and Corporate Secretary, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
C. Fred Madsen                        475 Steamboat Road                  Senior Vice President - Reinsurance
                                      Greenwich, Connecticut 06830        Operations, W. R. Berkley
                                                                          Corporation.
------------------------------------- ----------------------------------- --------------------------------------
Executive Officers Not Otherwise Listed Above:
------------------------------------- ----------------------------------- --------------------------------------
Roger J. Bassi                        475 Steamboat Road                  Executive Vice President
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------
Mark G. Davidowitz                    475 Steamboat Road                  Treasurer
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------
Kevin J. Shea                         475 Steamboat Road                  Senior Vice President
                                      Greenwich, Connecticut 06830
------------------------------------- ----------------------------------- --------------------------------------



                                        4





Berkley Regional Insurance Company
----------------------------------


------------------------------------- ----------------------------------- --------------------------------------
Name                                  Present Business Address            Present Principal Occupation
------------------------------------- ----------------------------------- --------------------------------------
                                                                    
Directors:
------------------------------------- ----------------------------------- --------------------------------------
William R. Berkley                    475 Steamboat Road                  Chairman of the Board and Chief
                                      Greenwich, Connecticut 06830        Executive Officer, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
W. Robert Berkley, Jr.                475 Steamboat Road                  Executive Vice President, W. R.
                                      Greenwich, Connecticut 06830        Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
James G. Shiel                        475 Steamboat Road                  Senior Vice President - Investments,
                                      Greenwich, Connecticut 06830        W. R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Eugene G. Ballard                     475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Financial Officer and Treasurer, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Ira S. Lederman                       475 Steamboat Road                  Senior Vice President - General
                                      Greenwich, Connecticut 06830        Counsel and Corporate Secretary, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Robert P. Cole                        475 Steamboat Road                  Senior Vice President - Regional
                                      Greenwich, Connecticut 06830        Operations, W. R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Robert C. Hewitt                      475 Steamboat Road                  Senior Vice President - Excess and
                                      Greenwich, Connecticut 06830        Surplus Lines, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
Paul J. Hancock                       475 Steamboat Road                  Senior Vice President and Chief
                                      Greenwich, Connecticut 06830        Corporate Actuary, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
Clement P. Patafio                    475 Steamboat Road                  Vice President - Corporate
                                      Greenwich, Connecticut 06830        Controller, W. R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Executive Officers Not Otherwise Listed Above:
------------------------------------- ----------------------------------- --------------------------------------
None
------------------------------------- ----------------------------------- --------------------------------------



                                        5





Nautilus Insurance Company
--------------------------


------------------------------------- ----------------------------------- --------------------------------------
Name                                  Present Business Address            Present Principal Occupation
------------------------------------- ----------------------------------- --------------------------------------
                                                                    
Directors:
------------------------------------- ----------------------------------- --------------------------------------
W. Robert Berkley, Jr.                475 Steamboat Road                  Executive Vice President, W. R.
                                      Greenwich, Connecticut 06830        Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Eugene G. Ballard                     475 Steamboat Road                  Senior Vice President - Chief
                                      Greenwich, Connecticut 06830        Financial Officer and Treasurer, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Robert C. Hewitt                      475 Steamboat Road                  Senior Vice President - Excess and
                                      Greenwich, Connecticut 06830        Surplus Lines, W. R. Berkley
                                                                          Corporation
------------------------------------- ----------------------------------- --------------------------------------
Thomas M. Kuzma                       7273 East Butherus Drive,           President and Chief Executive Officer
                                      Scottsdale, Arizona 85260
------------------------------------- ----------------------------------- --------------------------------------
Ira S. Lederman                       475 Steamboat Road                  Senior Vice President - General
                                      Greenwich, Connecticut 06830        Counsel and Corporate Secretary, W.
                                                                          R. Berkley Corporation
------------------------------------- ----------------------------------- --------------------------------------
Executive Officers Not Otherwise Listed Above:
------------------------------------- ----------------------------------- --------------------------------------
John M. Runberg                       7273 East Butherus Drive,           Senior Vice President, Chief
                                      Scottsdale, Arizona 85260           Financial Officer and Treasurer
------------------------------------- ----------------------------------- --------------------------------------



                                        6