Seagen Surges Over 20% in Pre-Market Trading as Pfizer Announces $43 Billion Acquisition

On March 13 local time, Seagen, a biotech company, surged over 20% in pre-market trading on the U.S. stock market. It was reported that Pfizer plans to acquire Seagen, the leading company in the ADC industry, for $43 billion to accelerate its layout in the ADC market.