I would not be surprised to find that the company’s profitability is massively overstated due to its denial of medically necessary procedures."

UnitedHealth Group has raised concerns with the top US securities regulator over a social media post by activist investor Bill Ackman, who claimed that the healthcare group could be inflating its profits.

Bill Ackman shared choice comments on UnitedHealth Group on his social media account before deleting his posts. Here's a look at what the hedge funder said.