PARIS--(BUSINESS WIRE)-- Regulatory News: Pursuant to applicable law on share repurchases, Ipsen S.A. (Paris:IPN) declares the following purchase of its own shares(1) in September 2007: Number of shares purchased(2) Weighted Average Price (in €) Amount (in €) 04/09/2007 Purchase 535,000 37.12 € 19,863,779.26 € Sale - - - Total 535,000 37.12 € 19,863,779.26 €