---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-084626"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2026-07-17T20:07:20+00:00"
generated_at: "2026-07-17T20:08:04.527042+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Trinseo schedules annual general meeting for September 23, 2026

## Summary
- Annual Meeting set for Sept 23, 2026 at 8:30 a.m. EST at Wayne, PA headquarters.
- Record date for shareholders is July 30, 2026.
- Shareholders in Ireland may attend via audio/video link at McCann FitzGerald LLP in Dublin.
- Advance registration required; details in proxy statement.

## SEC filing metadata
- accession: 0001104659-26-084626
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2026-07-17T20:07:20+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465926084626/0001104659-26-084626-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465926084626/tse-20260717x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-084626
- JSON: https://secwatch.observer/filing/0001104659-26-084626.json
- Plain text: https://secwatch.observer/filing/0001104659-26-084626.txt

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