Amicus Therapeutics (FOLD) Stock After Hours Dec. 19, 2025: BioMarin’s $14.50 Cash Buyout and What to Know Before the Next Market Open
Amicus Therapeutics, Inc. (NASDAQ: FOLD) ended Friday’s session (December 19, 2025) in a very different place than it started: the stock re-priced into “deal mode” after BioMarin Pharmaceutical (NASDAQ: BMRN) announced a definitive agreement to acquire Amicus in an all-cash transaction valued at roughly $4.8 billion. BioMarin Investors+2Reuters+2 With U.S. markets closed on the weekend, the “tomorrow open” investors are thinking about is really the next trading session on Monday, December 22, 2025—and the key question isn’t “growth vs. pipeline” anymore. It’s deal probability vs. deal timeline (and whether a rival bid emerges). SEC+1 What happened to Amicus Therapeutics stock