Trinseo PLC (TSEOQ) SEC Filings & Financial Intelligence
Trinseo PLC (TSEOQ) is a publicly traded company on the OTC, categorized under SIC 2821 (Plastic Materials, Synth Resins & Nonvulcan Elastomers). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: TSEOQ
CIK: 1519061
Exchange: OTC
SIC 2821: Plastic Materials, Synth Resins & Nonvulcan Elastomers
Fiscal Year End: 12/31
State: L2
Independent PCAOB Auditor
Explore PCAOB Audit Intelligence →
Audit Firm
PricewaterhouseCoopers LLP
Auditor SinceSince 12/31/2016 12:00:00 AM
Lead Engagement PartnerJeffrey Adeli
Audit LocationPhiladelphia, Pennsylvania, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 8-K | 2026-09-30 | 2026-09-30 | 8-K | 0001104659-26-112217 | View SEC Doc Filr Page |
| 8-K | 2026-09-23 | 2026-09-23 | 8-K | 0001104659-26-109915 | View SEC Doc Filr Page |
| 8-K | 2026-08-14 | 2026-08-14 | FORM_8-K | 0001104659-26-096792 | View SEC Doc Filr Page |
| ARS | 2026-08-07 | 2025-12-31 | ARS | 0001104659-26-092456 | View SEC Doc Filr Page |
| DEFA14A | 2026-08-07 | — | DEFA14A | 0001104659-26-092451 | View SEC Doc Filr Page |
| DEF 14A | 2026-08-07 | 2026-09-23 | DEF 14A | 0001104659-26-092447 | View SEC Doc Filr Page |
| 10-Q | 2026-08-06 | 2026-06-30 | 10-Q | 0001104659-26-091910 | View SEC Doc Filr Page |
| 8-K | 2026-08-06 | 2026-08-06 | 8-K | 0001104659-26-091904 | View SEC Doc Filr Page |
| 8-K | 2026-07-17 | 2026-07-17 | 8-K | 0001104659-26-084626 | View SEC Doc Filr Page |
| 8-K/A | 2026-06-12 | 2026-05-28 | FORM 8-K/A | 0001104659-26-073451 | View SEC Doc Filr Page |
| 8-K | 2026-06-01 | 2026-05-28 | FORM 8-K | 0001104659-26-068944 | View SEC Doc Filr Page |
| 8-K | 2026-05-26 | 2026-05-25 | FORM 8-K | 0001104659-26-066376 | View SEC Doc Filr Page |
| SD | 2026-05-22 | — | SD | 0001104659-26-065729 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-05-15 | — | SCHEDULE 13G/A Filing | 0000905148-26-002423 | View SEC Doc Filr Page |
| 8-K | 2026-05-15 | 2026-05-15 | FORM 8-K | 0001104659-26-062804 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001220571-26-000002 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001713192-26-000003 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001196701-26-000001 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001047461-26-000001 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001532447-26-000001 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001867705-26-000001 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001196053-26-000001 | View SEC Doc Filr Page |
| 4 | 2026-05-14 | 2026-05-12 | 4 Filing | 0001207044-26-000001 | View SEC Doc Filr Page |
| 8-K | 2026-05-14 | 2026-05-13 | FORM 8-K | 0001104659-26-060590 | View SEC Doc Filr Page |
| 8-K | 2026-04-30 | 2026-04-30 | FORM 8-K | 0001104659-26-053165 | View SEC Doc Filr Page |