CVS Health CEO Lynch steps down as the drugstore chain struggles to right its path

A big CVS sign with red letters and a white background. A CVS store is in the background.
FILE - A sign marks a CVS branch on Tuesday, May 16, 2023, in Pasadena, Calif. (AP Photo/Marcio Jose Sanchez, File)

CVS Health CEO Karen Lynch has stepped down with company shares sinking 19% this year and the health care giant struggling on several fronts.

Company shares tumbled again Friday after CVS Health also warned of disappointing third-quarter earnings and said investors should not rely on guidance for that quarter that provided in August.

Lynch will be replaced by veteran CVS Health executive David Joyner, who will attempt to steer the company through rising costs to its health insurance business, slumping drugstore sales and growing investor pressure. All major pharmacy chains are attempting to navigate a drastically changed landscape, facing competition online and elsewhere.