Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
OREILLY MICHAEL
  2. Issuer Name and Ticker or Trading Symbol
CHUBB CORP [CB]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice Chairman
(Last)
(First)
(Middle)
15 MOUNTAIN VIEW ROAD, P.O. BOX 1615
3. Date of Earliest Transaction (Month/Day/Year)
05/06/2005
(Street)

WARREN, NJ 070611615
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
COMMON 05/06/2005   X   10,000 A $ 59.78 94,465 D  
COMMON 05/06/2005   S   10,000 D $ 83.55 84,465 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
STOCK OPTION (1) $ 59.78 05/06/2005   C     10,000 03/11/2001 03/10/2009 COMMON 10,000 $ 59.78 55,450 D  
PERFORMANCE SHARES 2004 (2) $ 0 (3)               (2)   (2) COMMON 59,036   59,036 D  
PERFORMANCE SHARES 2005 (4) $ 0 (3)               (4)   (4) COMMON 47,462   47,462 D  
RESTRICTED STOCK UNIT 2004 (5) $ 0 (3)               (5)   (5) COMMON 9,839   9,839 D  
RESTRICTED STOCK UNIT 2005 (5) $ 0 (3)               (5)   (5) COMMON 7,910   7,910 D  
STOCK OPTION (1) $ 88.56             03/01/2003 03/01/2006 COMMON 47,418   47,418 D  
STOCK OPTION (1) $ 60.75             03/06/1999 03/05/2007 COMMON 1,645   1,645 D  
STOCK OPTION (1) $ 78.97             03/05/2000 03/04/2008 COMMON 23,755   23,755 D  
STOCK OPTION (1) $ 47.97             03/02/2002 03/02/2010 COMMON 3,126   3,126 D  
STOCK OPTION (1) $ 70.85             03/01/2002 03/01/2011 COMMON 46,007   46,007 D  
STOCK OPTION (1) $ 70.85             03/01/2003 03/01/2011 COMMON 1,411   1,411 D  
STOCK OPTION (1) $ 73.68             03/07/2003 03/07/2012 COMMON 22,952   22,952 D  
STOCK OPTION (1) $ 92.1             03/07/2003 03/07/2012 COMMON 22,952   22,952 D  
STOCK OPTION (1) $ 73.68             03/07/2004 03/07/2012 COMMON 22,953   22,953 D  
STOCK OPTION (1) $ 92.1             03/07/2004 03/07/2012 COMMON 22,953   22,953 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
OREILLY MICHAEL
15 MOUNTAIN VIEW ROAD
P.O. BOX 1615
WARREN, NJ 070611615
      Vice Chairman  

Signatures

 By: Patricia S. Tomczyk, POA   05/10/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) All Stock Options are granted in tandem with tax withholding rights.
(2) Represents 200% of the target performance share award, which is the maximum number of shares issuable under this award for the performance cycle ending December 31, 2006.
(3) Variable Pricing
(4) Represents 200% of the target performance share award, which is the maximum number of shares issuable under this award for the performance cycle ending December 31, 2007.
(5) Restricted Stock Units generally cliff vest on the third anniversary of the grant date.

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