Core and Group Health

The survey also noted that 34% of firms require lifestyle or clinical support programs in order for employees to receive GLP-1 agonists for weight loss.

If insurers started their own digital, "insurance-integrated" drug sales programs, that could lower what the patients pay out of pocket to use the programs and encourage more patients to try the programs, analysts say.

Although the ACA included some changes to employer-sponsored health insurance as well, particularly for plans sold to small companies, the changes were more minimal for larger employers, which generally already offered more comprehensive health insurance before the ACA.

The company accepted narrower profit margins to keep three big pharmacy benefit services customers.

The company's shares closed down 17% Thursday, their worst one-day drop since 2008.

Executives at Aon and Gallagher say that the U.S. labor market still looks strong, but that big increases in U.S. health coverage costs are definitely getting employers' attention.