Coinbase shareholders have filed a lawsuit in Delaware accusing the company's executives, including CEO Brian Armstrong, of concealing critical negative information. The plaintiffs allege that the leadership team misled investors regarding the company's regulatory compliance and internal system security. The lawsuit claims that executives artificially inflated the stock price by hiding issues such as compliance failures, security vulnerabilities, and ongoing regulatory investigations. This alleged concealment allowed the leadership to sell shares at inflated values before these negative factors became public knowledge. According to the complaint, the executives cashed out approximately $42 billion by selling stock during this period. The shareholders are seeking to hold the leadership accountable for the alleged insider trading and the breach of fiduciary duties associated with these massive stock sales.