Adjusted per-share earnings in the fourth quarter for UnitedHealth top analysts’ estimates but revenue comes up short.

But high medical costs contributed to results that disappointed Wall Street, and the company’s stock fell on the news that it had made less than analysts expected.

UnitedHealth beat fourth-quarter earnings forecast, though revenue fell short and medical costs ran high, hitting the Dow Jones component.

In its first results since its insurance unit CEO was fatally shot in New York City, UnitedHealth Group reported Thursday weaker-than-expected fourth-quarter revenue, prompting its shares to fall in early morning trading despite quarterly profit beating projections.