VENLO, The Netherlands, Sept. 22, 2009 (GLOBE NEWSWIRE) -- QIAGEN N.V. (Nasdaq:QGEN) (Frankfurt:QIA) (the "Company") announces today the launch of a placement of up to 27.5 million newly issued common shares through a bookbuilding process (the "Offering"). In addition, the Company will grant the underwriters an option to purchase up to 4.125 million additional newly issued common shares solely to cover over-allotments, if any (such shares, together with the Offering shares referred to above, the "Shares").