The Justice Department filed a complaint alleging some of the biggest Medicare insurers paid kickbacks to brokers that sell such plans, seeking to grab market share and in some cases avoid enrollees with disabilities who might come with heavy health costs.

Lilly shares fell 10% on Thursday due to CVS Health's decision to drop the obesity drug Zepbound from some lists of medicines it covers for reimbursement, while Medicare kickback allegations have prompted the federal government to take action against health insurance companies Aetna,

According to the complaint, the insurers paid brokers eHealth, GoHealth and SelectQuote hundreds of millions of dollars for enrolling seniors in their MA coverage — regardless of the plans’ suitability for those members’ needs.