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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 October, 2004
CONVERIUM HOLDING AG
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(Translation of registrant's name into English)
Baarerstrasse 8
CH-6300 Zug
Switzerland
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(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
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/ Dirk Lohmann
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Name: Dirk Lohmann
Title: CEO
By: /s/ Christian Felderer
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Name: Christian Felderer
Title: General Legal Counsel
Date: October 8, 2004
Wellington Management Company LLC adjusts its holding in Converium shares to
below 5%
Converium Holding Ltd has been notified pursuant to Art. 20 of the Swiss Stock
Exchange Act that Wellington Management Company LLC, 75 State Street, Boston,
MA, 02100, USA, has adjusted its holding in Converium Holding Ltd, Zug to below
5% of Converium's registered shares.
Zug, October 5, 2004
Enquiries:
Michael Schiendorfer Zuzana Drozd
Media Relations Manager Head of Investor Relations
michael.schiendorfer@converium.com zuzana.drozd@converium.com
Phone: +41 (0) 1 639 96 57 Phone: +41 (0) 1 639 91 20
Fax: +41 (0) 1 639 76 57 Fax: +41 (0) 1 639 71 20
www.converium.com