$联合健康(UNH)$ 8-K - Current report Filed: 2019-06-28 AccNo: 0000731766-19-000021 Size: 125 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 9.01: Financial Statements and Exhibits 网页链接