---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-043485"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2026-04-15T23:59:59+00:00"
generated_at: "2026-05-15T06:05:22.135194+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Trinseo skips $38M interest payment; lenders waive rights until April 30

## Summary
- Elected not to make ~$38M interest payment due under September 2023 credit agreement.
- Non-payment constitutes event of default after applicable grace periods.
- Lenders temporarily waived acceleration and collateral enforcement rights until April 30, 2026.
- 2L Notes holders prohibited from enforcing collateral for 180 days after any acceleration; no acceleration yet.
- Company continues discussions with stakeholders; no assurance of agreement or restructuring outcome.

## SEC filing metadata
- accession: 0001104659-26-043485
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2026-04-15T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465926043485/0001104659-26-043485-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465926043485/tm2611573d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-043485
- JSON: https://secwatch.observer/filing/0001104659-26-043485.json
- Plain text: https://secwatch.observer/filing/0001104659-26-043485.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.