$Sienna(SNNA)$ 8-K - Current report Filed: 2019-01-30 AccNo: 0001193125-19-021346 Size: 203 KBItem 1.01: Entry into a Material Definitive AgreementItem 3.02: Unregistered Sales of Equity SecuritiesItem 9.01: Financial Statements and Exhibits 网页链接