THE OFFER OF QIAGEN ON IPSOGEN WAS A SUCCESS

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As announced by the AMF on November 29, 2011, QIAGEN holds, pursuant to its public offer on IPSOGEN, 89.30% of share capital and 86.47% of voting rights in IPSOGEN. This outcome is a tribute to the successful offer by QIAGEN, which provided IPSOGEN shareholders with an opportunity for a substantial premium and immediate liquidity on their investment in IPSOGEN.

QIAGEN and IPSOGEN are truly delighted and will re-focus from the transaction activities to the integration of IPSOGEN within the QIAGEN group.

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