Report: Merck in Advanced Talks to Acquire Seagen for $40B

Merck is in late-stage discussions to acquire Seagen for about $40 billion, sources told The Wall Street Journal. Seagen is an appealing oncology target for Merck at a time when the latter is looking to bolster its cancer portfolio as mega-blockbuster Keytruda (pembrolizumab) teeters on the patent cliff.