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28/01/2009 | 07:00 CET | Disclosure of shareholdings

Disclosure of shareholdings

MFS Investment Management and its subsidiaries hold 3.09% of Sonova Holding AG

According to the article 20 of the Swiss Stock Exchange Act, Sonova Holding AG announces, that MFS Investment Management and its subsidiaries1, 500 Boylston St., Boston, MA 02110, hold 2,044,350 registered shares with a par value of CHF 0.05 as of January 23, 2008 due to acquisition of securities. This corresponds to 3.09% of total capital and voting rights.



Contact person at MFS Investment Management: Robert Flaherty, phone: +1 617 954 5814,

fax: +1 617 350 2574.


1Subsidiaries of MFS Investment Management:


MFS Investment Management ("MFS")

MFS Institutional Advisors, Inc. ("MFSI")

MFS International Ltd. ("MIL")

MFS International ("UK") Ltd. ("MIL UK")

MFS Heritage Trust Co. ("MFSHE")

MFS International Management KK ("MIM KK")

MFS International Management ("LUX") S.A. ("MIM LUX")


The address for all the entities listed above is:

c/o MFS Investment Management, 500 Boylston St., Boston, MA 02110