Dr. Denner started Sarissa Capital Management in 2012 after working as a healthcare portfolio manager at Icahn Capital. As of its Q3 2018 13-F filing, the fund had a concentrated portfolio worth $453.36 million, with more than 36% of its assets in Biogen. The fund also held positions in Innoviva (NASDAQ:INVA) and Allergan (NYSE:AGN). Dr. Denner also serves as the Chairman of the Board at The Medicines Company (NASDAQ:MDCO).
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