UnitedHealth Group Inc. (UNH) shares tumbled nearly 6% on Wednesday, snapping a three-day winning streak, as mounting legal and reputational headwinds weighed on investor sentiment. The latest decline follows a damning report by The Guardian and growing concerns about an ongoing U.

When CFRA’s Paige Meyer slapped a “sell” rating on UnitedHealth Group Inc. in February, she was the lone analyst out of 30 tracked by Bloomberg with a negative view of the company.

Shares of UnitedHealth Group ( UNH -5.75%) plummeted again on Wednesday. The company's stock is down 5.8% as of market close, while the S&P 500 ( ^GSPC -1.61%) and the Nasdaq Composite ( ^IXIC -1.41%) lost 1.6% and 1.4%, respectively.

JP Morgan analyst Lisa Gill reiterated her optimistic view on UnitedHealth Group Inc. (NYSE:UNH) despite the recent issues, including the allegations made in a report by The Guardian. On May 21, after the market closed,

UnitedHealth Group (UNH) stock snaps a winning streak as analysts review the latest allegations directed against the company. Read more here.

UnitedHealth’s stock was falling Wednesday after HSBC turned bearish, even as the insurer dismissed a report that it paid nursing homes not to transfer residents to hospitals.