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Disclosure of shareholdings

08/31/2010
Lone Pine Capital LLC and its subsidiaries hold 3.018% of Sonova Holding AG

According to the article 20 of the Swiss Stock Exchange Act, Sonova Holding AG announces that Lone Pine Capital LLC and its subsidiaries 1, 2 Greenwich Plaza, Greenwich, 06830, Connecticut, USA, hold 1,994,477 registered shares with a par value of CHF 0.05 as of August 23, 2010 due to acquisition of securities. This corresponds to 3.018% of total capital and voting rights.

 

Contact person at Lone Pine Capital LLC: Jeffrey Wechselblatt, phone: +1 203 618 7826,
fax: +1 203 552 3826.

 

1Subsidiaries of Lone Pine Capital LLC:

 

Lone Cypress, Ltd.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Spruce, L.P.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Balsam, L.P.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Sequoia, L.P.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Kauri, Ltd.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Cascade, L.P.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Monterey Master Fund, Ltd.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America

 

Lone Sierra, L.P.

2 Greenwich Plaza, Greenwich, Connecticut 06830

United States of America