Pharmacyclics billionaire Bob Duggan takes the helm of another biotech — and he faces an even bigger uphill climb this time

Five years after turning his stake in Pharmacyclics into a personal fortune worth more than a billion dollars, Bob Duggan is back at the helm …

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Phar­ma­cyclics bil­lion­aire Bob Dug­gan takes the helm of an­oth­er biotech — and he faces an even big­ger up­hill climb this time