Crucell N.V. to Release First Quarter 2010 Results on Tuesday May 11, 2010

LEIDEN, NETHERLANDS--(Marketwire - May 04, 2010) - Dutch biopharmaceutical company Crucell N.V. (NYSE Euronext, NASDAQ: CRXL; Swiss Exchange: CRX) today announced that it will release its financial results for the first quarter 2010 on Tuesday May 11, 2010 at 07:45 Central European Time (CET).

At 14:00 Central European Time (CET), Crucell’s management will conduct a conference call, which will also be webcast. To participate in the conference call, please call one of the following telephone numbers 15 minutes prior to the event:

 +44 20 7138 0845 for the UK; +1 212 444 0896 for the US; and +3120 201 5469 for the Netherlands 

Following a presentation of the results, the lines will be opened for a question and answer session.

The live audio webcast can be accessed via the homepage of Crucell’s website at www.crucell.com and will be archived and available for replay following the event.

About Crucell

Crucell N.V. (NYSE Euronext, NASDAQ: CRXL; Swiss Exchange: CRX) is a global biopharmaceutical company focused on research development, production and marketing of vaccines, proteins and antibodies that prevent and/or treat infectious diseases. In 2009 alone, Crucell distributed more than 115 million vaccine doses in more than 100 countries around the world, with the fast majority of doses going to developing countries. Crucell is one of the major suppliers of vaccines to UNICEF and the developing world. Crucell was the first manufacturer to launch a fully-liquid pentavalent vaccine called Quinvaxem®. Quinvaxem® protects against five important childhood diseases and over 130 million doses have been sold since its launch in 2006 in more than 50 GAVI countries. Through Quinvaxem® and its innovation, Crucell has become a major partner in protecting children in developing countries. Crucell’s core portfolio also includes a vaccine against hepatitis B and a virosome-adjuvanted vaccine against influenza. Crucell also markets travel vaccines, such as an oral anti-typhoid vaccine, an oral cholera vaccine and the only aluminum-free hepatitis A vaccine on the market. The Company has a broad development pipeline, with several product candidates based on its unique PER.C6® production technology. The Company licenses its PER.C6® technology and other technologies to the biopharmaceutical industry. Important partners and licensees include Johnson & Johnson, DSM Biologics, sanofi-aventis, Novartis, Wyeth, GSK, CSL and Merck & Co. Crucell is headquartered in Leiden, the Netherlands, with subsidiaries in Argentina, China, Italy, Korea, Spain, Sweden, Switzerland, UK and the USA. The Company employs over 1200 people. For more information, please visit www.crucell.com.

Forward-looking statements

This press release contains forward-looking statements that involve inherent risks and uncertainties. We have identified certain important factors that may cause actual results to differ materially from those contained in such forward-looking statements. For information relating to these factors please refer to our Form 20-F, as filed with the US Securities and Exchange Commission on April 7, 2010, in the section entitled ‘Risk Factors’. The Company prepares its financial statements under International Financial Reporting Standards (IFRS).

Financial Calendar 4 June 2010 Annual General Meeting of Shareholders 17 August 2010 Q2 Results 2010 9 November 2010 Q3 Results 2010 15 February 2011 Q4/FY Results 2010 For further information please contact Crucell: Oya Yavuz Vice President Corporate Communications & Investor Relations Tel. +31 (0)71 519 7064 ir@crucell.com www.crucell.com 

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PDF file: http://hugin.info/132631/R/1411559/363968.pdf

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