$OpGen, Inc.(OPGN)$ 8-K/A [Amend] - Current report Filed: 2017-07-10 AccNo: 0001079973-17-000385 Size: 365 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 3.02: Unregiste 网页链接