$Aptevo Therapeutics Inc.(APVO)$ 8-K - Current report Filed: 2017-09-29 AccNo: 0001564590-17-019092 Size: 667 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.01: Completion of Acquisition or Disposition of AssetsItem 9.01: Financial Statements and Exhibits 网页链接