secwatch.observer — SEC 8-K summary ====================================== Issuer: Trinseo PLC (TSEOF) CIK: 0001519061 Form: 8-K Filed at: 2026-05-15T21:27:08+00:00 Accession: 0001104659-26-062804 Event type: other_material Sentiment: negative Materiality: 0.60 Item codes: 1.01, 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Trinseo extends securitization waiver expiration to May 27, 2026 ---------------------------------------------------------------- - Securitization waiver expiration extended from prior date to May 27, 2026, per counterparty confirmations. - Extension obtained under terms of existing waiver agreement disclosed in March 2026 8-K. - Company continues to pursue restructuring under previously announced Restructuring Support Agreement. - Ordinary shares now trade OTC under symbol TSEOF after NYSE delisting on March 30, 2026. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465926062804/0001104659-26-062804-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1519061/000110465926062804/tm2614854d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-062804 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer