440 EAST SWEDESFORD ROAD, WAYNE, PA
Amended material disclosure
Trinseo PLC Enters Chapter 11 Bankruptcy for Restructuring
Takes Next Step to Implement Restructuring Support Agreement and Strengthen Financial Foundation
Material disclosure
Takes Proactive Step to Strengthen Financial Foundation and to Drive Long-Term Sustainable Growth
Reports First Quarter 2026 Financial Results
News
News, Material Contracts
Q1
Amended Annual Report
FY 2025
Q3
Q2
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
Additional Proxy Materials
Definitive Proxy Statement
PRE 14A
Amended Schedule 13G - Ownership Report
Statement of Changes in Beneficial Ownership
Specialized Disclosure Report
Submission Upload
Correspondence