$美国无线电话(USM)$ 8-K - Current report Filed: 2019-03-18 AccNo: 0000821130-19-000025 Size: 305 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