Pfizer Inc.’s promising Covid-19 vaccine trial results boosted many investors’ fortunes, but none so dramatically as a pair of German brothers.Andreas and Thomas Struengmann have collectively added about $8 billion to their wealth this year thanks to their stake in BioNTech SE, the German firm that’s developing the vaccine with Pfizer.
BioNTech’s American depositary receipts surged this week after the US drug giant reported the shot they’re working on prevented 90% of symptomatic infections in tens of thousands of volunteers.At $22 billion, the twins have one of the world’s biggest health-care fortunes, according to the Bloomberg Billionaires Index.