$Sientra(SIEN)$ 8-K - Current report Filed: 2019-11-07 AccNo: 0001193125-19-287365 Size: 331 KBItem 1.01: Entry into a Material Definitive AgreementItem 2.01: Completion of Acquisition or Disposition of AssetsItem 3.02: Unregistered Sales of Equity SecuritiesItem 9.01: Financial Statements and Exhibits 网页链接