$Trinseo(TSE)$ 8-K - Current report Filed: 2018-12-21 AccNo: 0001558370-18-009779 Size: 113 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 Exhibits 网页链接