High-Powered Grifols Lawyer Is at Heart of Hedge Fund Battle (1)

For hedge fund Mason Capital Management LLC, much of what ails Grifols SA can be laid at the door of one man: Tomas Daga. But for the drugmaker, he’s someone who’s helped transform the once-tiny Spanish blood plasma company into a world leader.

As Grifols emerges from a failed attempt by Brookfield Asset Management to take it over, the spotlight is increasingly turning to the behind-the-scenes role played at the company by Daga. A partner at Grifols’ go-to law firm Osborne Clarke, which advises the company on all legal matters, Daga has been a fixture on the ...