FORM 4
[ X ] 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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Lancaster Antony P.D. 		2. Issuer Name and Ticker or Trading Symbol

PLATINUM UNDERWRITERS HOLDINGS LTD [ PTP ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O PLATINUM UNDERWRITERS HOLDINGS, LTD., WATERLOO HOUSE, 100 PITTS BAY ROAD 		3. Date of Earliest Transaction (MM/DD/YYYY)

3/2/2015
(Street)

PEMBROKE, D0 HM 08
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 Shares   3/2/2015     D    5526   (1) D   (2) (3) 0   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Share Units     (3) (4) 3/2/2015     D         803   (1)     (3) (4)   (3) (4) Common Shares   803   $66.00   (3) (4) 0   D    

Explanation of Responses:
( 1)  Disposed of in connection with the Agreement and Plan of Merger ("Merger Agreement") between the Issuer, RenaissanceRe Holdings Ltd. ("RenaissanceRe") and Port Holdings Ltd., dated as of November 23, 2014.
( 2)  Pursuant to the terms of the Merger Agreement, upon closing of the merger, these Common Shares will be cancelled and the holder will receive, per his election, an amount equal to $66.00 in cash per each Common Share for 525 of his Common Shares and 0.2960 common shares of RenaissanceRe and $35.96 in cash for 5,001 of his Common Shares, subject to proration. Fractional RenaissanceRe common shares will be paid in cash.
( 3)  This consideration amount is subject to adjustment due to possible proration calculations provided for in the Merger Agreement. Specifically, the cash election consideration is subject to proration if the un-prorated aggregate share consideration is less than 7,500,000 RenaissanceRe common shares, and the share election consideration is subject to proration if the un-prorated aggregate share consideration is greater than 7,500,000 RenaissanceRe common shares. This proration calculation has not been finalized as of the date of this Form 4 and thus it is not possible to determine the exact amount of consideration to be received by the reporting person as of the date of this Form 4. Once the exact amount of consideration is determined, the reporting person will file an amendment to this Form 4, if necessary.
( 4)  Pursuant to the terms of the Merger Agreement, upon closing of the merger, these Share Units will be cancelled and the holder will receive, per their election, an amount equal to 0.2960 common shares of RenaissanceRe and $35.96 in cash per each Common Share underlying each Share Unit, subject to proration. Fractional RenaissanceRe common shares will be paid in cash.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Lancaster Antony P.D.
C/O PLATINUM UNDERWRITERS HOLDINGS, LTD.
WATERLOO HOUSE, 100 PITTS BAY ROAD
PEMBROKE, D0 HM 08 		X



Signatures
/s/ Molly E. Gardner, Attorney-in-fact 3/2/2015
** 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 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).
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 control number.
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