$OPGEN INC USD0.01(OPGN)$ 8-K - Current report Filed: 2017-04-27 AccNo: 0001079973-17-000247 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