The company is at a pivotal point following the killing of Brian Thompson, who headed the UnitedHealthcare unit, and there was a public outcry about insurance denials. That prompted Andrew Witty, the ...

UnitedHealth shares have been pressured recently, falling about 10% since Dec. 4, when Thompson was killed. That outpaces the 3% drop in the S&P 500 index over that span and signals some investor ...