440 EAST SWEDESFORD ROAD, WAYNE, PA
Material disclosure
Notice of Extraordinary General Meeting
Annual Report to Security Holders
Reports Second Quarter 2026 Financial Results
Other Events
Amended material disclosure
Trinseo PLC Enters Chapter 11 Bankruptcy for Restructuring
Q2
Q1
Amended Annual Report
FY 2025
Q3
FY 2023
Registration Statement for Securities to be Offered to Employees
Certification of Termination of Registration of a Class of Security
SC TO-I
Tender Offer Statement by Issuer
Definitive Proxy Statement
Additional Proxy Materials
PRE 14A
Amended Schedule 13G - Ownership Report
Statement of Changes in Beneficial Ownership
Specialized Disclosure Report
Submission Upload
Correspondence