A Chicago attorney has helped a class-action securities fraud case reach a $215 million settlement over a company’s allegedly deceitful financial reports.The agreement was disclosed Nov. 4 in a Nashville, Tenn., federal court case that alleges Nashville-based HCA Holdings Inc. — a company that owns and manages several hospitals and other medical facilities in 20 states and in England — disclosed misleading information regarding its most profitable cardiac procedures, which inflated its public stock price …