$SIGA TECHNOLOGIES(SIGA)$ 8-K - Current report Filed: 2018-10-18 AccNo: 0001140361-18-040872 Size: 101 KBItem 1.01: Entry into a Material Definitive AgreementItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Cert 网页链接