---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-24-013089"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2024-09-30T23:59:59+00:00"
generated_at: "2026-05-31T00:44:11.116553+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Trinseo announces restructuring plan with $23-28M charges and workforce reduction

## Summary
- Board approved restructuring plan on Sept 26, 2024 combining Engineered Materials, Plastics Solutions and Polystyrene businesses.
- Expected pre-tax restructuring charges of $23-28 million, primarily severance and related benefit costs.
- Anticipates $45-50 million annualized profitability improvement beginning in 2026 from restructuring initiatives.
- Revised compensation for SVP Han Hendriks: annual bonus target increased to 85% of base salary for 2025.

## SEC filing metadata
- accession: 0001558370-24-013089
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2024-09-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.05, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000155837024013089/0001558370-24-013089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000155837024013089/tse-20240926x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-24-013089
- JSON: https://secwatch.observer/filing/0001558370-24-013089.json
- Plain text: https://secwatch.observer/filing/0001558370-24-013089.txt

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