Fresenius Medical Care Slumps After Patient-Aid Subpoena

Fresenius Medical Care AG fell the most in almost seven months after saying it had received a subpoena in the U.S. over premium-assistance programs that support dialysis patients on private insurance plans that can be more lucrative for providers. Fresenius said the U.S. Attorney for the District of Massachusetts is investigating its connections to the American Kidney Fund, which manages a patient-assistance program for the private plans.