BEIJING – Just a few days after Beigene Co. Ltd.’s CEO and co-founder John Oyler signed a second sizable deal with the Merck Serono arm of Merck KGaA – the up-front payments undisclosed, but with a promise of almost $500 million if all milestones are achieved in both – he admitted the cash removes a layer of stress: “Maybe you sleep better at night, but it’s business as usual. The deal with Merck doesn’t change the way you work or the passion.”