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Disclosure of shareholdings

FMR LLC holds 5.12% of Sonova Holding AG
According to the article 20 of the Swiss Stock Exchange Act, Sonova Holding AG announces, that FMR LLC, 82 Devonshire Street, Boston, MA 02109, USA holds 3,438,361 registered shares with a par value of CHF 0.05 as of December 7, 2007 due to an acquisition of shares. This corresponds to 5.12% of total capital and voting rights.


FMR LLC is the parent holding company of Fidelity Management & Research Company (“FMRCO”), investment manager for US mutual funds, and Fidelity Management Trust Company (“FMTC”), a US state chartered bank which acts as a trustee or investment manager of various pension and trust accounts. Pyramis Global Advisors Trust Company LLC (“PGATC“) and Pyramis Global Advisors LLC (“PGALLC“) are indirect wholly-owned subsidiaries of FMR LLC.


Contact person at FMR LLC: Rani Jandu, Senior Manager, or Sophie Hughes, email:, Fax: +44 1737 837 450.