https://www.reuters.com/article/us-amazon-healthcare/amazon-berkshire-jpm-team-up-for-cheaper-employee-healthcare-idUSKBN1FJ1NF >Amazon.com Inc , Berkshire Hathaway and JPMorgan Chase & Co are forming a venture aimed at lowering healthcare costs for their U.S. employees, they said on Tuesday, sparking a slide in the shares of a host of healthcare-related companies.