---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-112217"
form_type: "8-K"
ticker: "TSEOF"
cik: "0001519061"
company_name: "Trinseo PLC"
filed_at: "2026-09-30T16:00:37+00:00"
generated_at: "2026-10-12T14:00:49.443601+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Trinseo EGM convened under Irish law as net assets fall to half of share capital; AGM quorum 491,031 shares

## Summary
- Extraordinary General Meeting convened under Section 1111 of the Irish Companies Act 2014 because Trinseo's net assets are half or less of called-up share capital; no resolutions proposed.
- 2026 Annual General Meeting held September 30 after the September 23 meeting lacked quorum; only 491,031 shares present or represented, which set quorum under Article 88.
- All eleven director nominees elected, including K'Lynne Johnson, Frank Bozich, Carol Flaton and Jill Frizzley; votes ranged from 487,709 to 491,031 in favor.
- Say-on-pay approved 488,146 for vs 2,885 against; PricewaterhouseCoopers ratified as independent auditor for the year ending December 31, 2026, 491,031 for.
- The AGM was further adjourned to a date to be determined; the Extraordinary General Meeting ended with no substantive matters voted on or acted upon.

## SEC filing metadata
- accession: 0001104659-26-112217
- form_type: 8-K
- ticker: TSEOF
- cik: 0001519061
- company_name: Trinseo PLC
- filed_at: 2026-09-30T16:00:37+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.07, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1519061/000110465926112217/0001104659-26-112217-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1519061/000110465926112217/tse-20260930x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-112217
- JSON: https://secwatch.observer/filing/0001104659-26-112217.json
- Plain text: https://secwatch.observer/filing/0001104659-26-112217.txt

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