$Aspen Technology, Inc.(AZPN)$ 8-K - Current report Filed: 2018-08-10 AccNo: 0000929940-18-000028 Size: 83 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 9.01: Financial Statements and Exhibi 网页链接