Special purpose acquisition companies or “SPACs” are an increasingly popular way for an existing private company to become publicly traded without undergoing a traditional initial public offering, and for investors in public markets to invest in growth-stage companies. There can be generous returns for SPAC sponsors, but they should be aware of the liability risk in connection with their role. Indeed, litigation arising from several recent SPAC acquisitions, most prominently against Nikola Corporation, underscores the…