Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Ashley William J
 2. Date of Event Requiring Statement (Month/Day/Year)
04/06/2005		 3. Issuer Name and Ticker or Trading Symbol
RENAISSANCERE HOLDINGS LTD [RNR]
(Last)
(First)
(Middle)
RENAISSANCE HOUSE, 8-20 EAST BROADWAY		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CUO(Gln Grp)Pres&COO(Glen Ins)
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PEMBROKE, HM19, BERMUDA 		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 21,621 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy) 01/11/2003(2) 01/11/2012 Common Stock 10,077 $ 29.77 D  
Incentive Stock Option (right to buy) 03/12/2005(2) 03/12/2014 Common Stock 5,559 $ 53.96 D  
Non-qualified Stock Option (right to buy) 01/11/2003(2) 01/11/2012 Common Stock 16,563 $ 29.77 D  
Non-qualified Stock Option (right to buy) 11/19/2003(2) 11/19/2012 Common Stock 16,000 $ 39.07 D  
Non-qualified Stock Option (right to buy) 12/30/2003(2) 01/11/2012 Common Stock 2,506 $ 39.93 D  
Non-qualified Stock Option (right to buy) 05/16/2004(2) 05/16/2013 Common Stock 11,299 $ 45.43 D  
Non-qualified Stock Option (right to buy) 03/12/2005(2) 03/12/2014 Common Stock 10,188 $ 53.96 D  
Non-qualified Stock Option (right to buy) 08/31/2005(3) 08/31/2014 Common Stock 82,000 $ 74.24 D  
Non-qualified Stock Option (right to buy) 03/21/2006(2) 03/21/2015 Common Stock 5,654 $ 49.1 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Ashley William J
RENAISSANCE HOUSE
8-20 EAST BROADWAY
PEMBROKE, HM19, BERMUDA 		       CUO(Gln Grp)Pres&COO(Glen Ins)  

Signatures

/s/ Stephen H. Weinstein, Attorney-in-fact 04/14/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Comprised of 14,522 Common Shares which have vested or vest in 60 days from the date of this statement, and 7,099 Common Shares which have not vested. All of such shares vest ratably in four equal annual installments from the respective dates of grants.
(2) All of such options vest ratably in four equal annual installments from the respective dates of grants. The Date Exercisable is the first vesting date of each individual option.
(3) Such options vest in their entirety on the fifth anniversary of date of grant.

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