Filing of a draft reply document established by IPSOGEN in response to a draft tender offer initiated by QIAGEN N.V.

This press release has been prepared and published by Ipsogen in accordance with Article 231-26 of the General Regulations of the French stock market authority (Autorité des marchés financiers) (the "AMF").

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The following translation of the press release is provided for information purposes only and is not intended to substitute the original French language document entitled “Dépôt d’un projet de note d’information de la société IPSOGEN en réponse au projet d’offre publique d’achat initiée par Qiagen N.V” which has been published on October 17, 2011.

See the press release

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