Form: 3

Initial statement of beneficial ownership of securities

April 14, 2005

SEC Form 3
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
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Ashley William J
(Last) (First) (Middle)
RENAISSANCE HOUSE
8-20 EAST BROADWAY
(Street)
PEMBROKE, HM19, BERMUDA
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
04/06/2005 		3. Issuer Name and Ticker or Trading Symbol
RENAISSANCERE HOLDINGS LTD [ RNR ]
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 of 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
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
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: 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
Explanation of Responses:
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.
/s/ Stephen H. Weinstein, Attorney-in-fact 04/14/2005
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.