The Soros Fund Management bought shares of both Express Scripts and Zai Lab Limited during the third quarter.
News & Analysis: Express Scripts
Second-quarter results were strong enough to lift the company's sales outlook last month.
A big deal is brewing between it and a major insurer.
Express Scripts started to shake off the negative headwinds facing its industry last month.
The big pharmacy benefits manager punctuated a lackluster first-quarter earnings report with the prospect of losing a major customer.