Shares of Assertio Holdings, Inc. (ASRT) have nosedived 64.5% in the past three months against the industry’s increase of 17.6%.In January 2024, the company’s chief executive officer (CEO), Dan Peisert, stepped down from his role with immediate effect.Assertio appointed Heather Mason, who had already served as the independent director of the company, as its new interim CEO.Mason, who has been with Assertio since 2019, also served as the chair of its Nominating and Corporate Governance Committee.Assertio’s c ...