$伯克希尔-哈撒韦A(BRK.A)$ 8-K - Current report Filed: 2018-01-10 AccNo: 0001193125-18-008311 Size: 19 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 Exhibi 网页链接