---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-006778"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2025-05-07T23:59:59+00:00"
generated_at: "2026-05-22T07:49:20.336661+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Trinseo Q1 net loss $79M, adj. EBITDA $65M; withdraws FY2025 guidance

## Summary
- Net loss of $79M, EPS -$2.22; adjusted net loss $49M, adjusted EPS -$1.37.
- Net sales $785M, -13% YoY; adjusted EBITDA $65M, up $20M YoY from $45M.
- Q2 outlook: adj. EBITDA $55M-$70M, net loss $61M-$46M; full-year guidance withdrawn.
- Polycarbonate licensing income $26M in Q1; cash $128M, total liquidity $421M.
- Polymer Solutions adj. EBITDA $44M (+$15M YoY) on licensing; Americas Styrenics EBITDA -$2M.

## SEC filing metadata
- accession: 0001558370-25-006778
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2025-05-07T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000155837025006778/0001558370-25-006778-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000155837025006778/tse-20250507x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-006778
- JSON: https://secwatch.observer/filing/0001558370-25-006778.json
- Plain text: https://secwatch.observer/filing/0001558370-25-006778.txt

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