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 July, 2005
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
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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
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If "Yes" is marked, indicate the file number assigned to the registrant in
connection with Rule 12g3-2(b): 82- Not Applicable
Zurich Cantonal Bank increases its holding of Converium's registered shares to
5.001% and reduces again to below 5% Disclosure of shareholdings pursuant to
Art. 20 SESTA
Zug, Switzerland - July 7, 2005 - Converium Holding Ltd has been notified that
Zurich Cantonal Bank, Tessinerplatz 7, 8002 Zurich, Switzerland, adjusted its
holding of registered shares of Converium Holding Ltd, Zug on June 29, 2005 to
5.001% and on June 30, 2005 to below 5%.
Zurich Cantonal Bank states that the above-mentioned stock of shares is a pure
trading position, which is generated during the normal course of its derivative
business.
Contacts:
Zuzana Drozd
Head of Investor Relations
zuzana.drozd@converium.com
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Phone +41 (0) 44 639 91 20
Fax +41 (0) 44 639 71 20
Esther Gerster
Head of Public Relations
esther.gerster@converium.com
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Phone +41 (0) 44 639 90 22
Fax +41 (0) 44 639 70 22
www.converium.com
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/ Terry Clarke
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Name: Terry Clarke
Title: CEO
By:/s/ Christian Felderer
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Name: Christian Felderer
Title: General Legal Counsel
Date: July 8, 2005