A Facebook investor Wednesday accused Mark Zuckerberg and other top executives of insider trading and blamed them for a series of high-profile privacy scandals that have jolted the company’s stock and exposed it to billions of dollars in fines and legal liability.

The derivative lawsuit, filed in Delaware Chancery Court, comes just one week after the Menlo Park-based social media giant said it expected to pay a fine of up to $5 billion for violating a Federal Trade Commission consent decree that required Facebook to enact better protections for user data.