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Form 6-K

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16
of the Securities Exchange Act of 1934

For the month of June 2003

CONVERIUM HOLDING AG
(Translation of registrant’s name into English)

Baarerstrasse 8
CH-6300 Zug
Switzerland
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F [X]     Form 40-F [  ]

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes [  ]     No [X]

If “Yes” is marked, indicate the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- Not Applicable

 

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SIGNATURES

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SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

         
    CONVERIUM HOLDING AG
     
     
    By:   /s/ Martin Kauer
Name: Martin Kauer
Title: CFO
     
    By:   /s/ Christian Felderer
Name: Christian Felderer
Title: Group General Counsel

Date: June 6, 2003

 

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Government of Singapore adjusts its holding in Converium shares from 4.98% to 5.12%

Disclosure of shareholdings pursuant to Art. 20 SESTA:

Converium Holding Ltd hereby informs that Government of Singapore, Investment Corporation Pte Ltd (GIC), 168 Robinson Road #37-01, in Singapore 068912, has increased its holding from 1,992,411 registered shares in Converium Holding Ltd, Zug, to 2,051,815 registered shares with 2,051,815 votes. This corresponds to an increase from 4.98% to 5.12% of Converium’s registered shares with voting rights.

Disclosed share holdings in Converium Holding Ltd, Zug To-date the following interests have been previously notified to Converium Holding Ltd, Zug:

•   Fidelity International Limited (“Fidelity”), Hamilton/Bermuda: 9.87% (date of notification April 28, 2003)
 
•   Deutsche Bank AG, Frankfurt: 7.96% (date of notification May 26, 2003)
 
•   Wellington Management Company (“Wellington”), LLP, Boston/Massachusetts, U.S.A.: 7.68% (date of notification January 11, 2002)
 
•   Government of Singapore (GIC), Singapore: 5.12%, (date of notification May 30, 2003)
 
•   Putnam Investment Management, LLC und Putnam Advisory Company, LLC: 5.032% (date of notification May 27, 2003)
 
•   Wellington is an investment advisor and portfolio manager having voting authority for 47 investment advisory clients, none of which has an individual shareholding in excess of 5%.
 
•   Fidelity is an investment advisor, which provides investment advisory and management services to a number of non-U.S. investment companies or instrument trusts and certain institutional investors.
 
•   Each Putnam entity is an investment advisor registered in the United States pursuant to the Investment Advisors Act of 1940.

Zug, June 6, 2003

For further information:

     
Michael Schiendorfer   Zuzana Drozd
Media Relations Manager   Head of Investor Relations
michael.schiendorfer@converium.com   zuzana.drozd@converium.com
+41 (0)1 639 96 57   +41 (0)1 639 91 20

www.converium.com