$MIDDLEFIELD BANC CORP(MBCN)$ 8-K - Current report Filed: 2017-03-14 AccNo: 0001193125-17-081300 Size: 15 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