---
schema_version: "secwatch.filing_event.v1"
accession: "0000099780-24-000020"
form_type: "8-K"
ticker: "TRN"
cik: "0000099780"
company_name: "TRINITY INDUSTRIES INC"
filed_at: "2024-02-26T23:59:59+00:00"
generated_at: "2026-06-05T16:24:24.814324+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "low"
source: SEC EDGAR
---

# Trinity Industries changes reportable segments effective Jan 1, 2024; recasts 2023 results

## Summary
- New segment structure effective Jan 1, 2024; prior year results recast to show effect of change.
- Investor presentation includes unaudited comparative segment data for full year 2023.
- Presentation filed as Exhibit 99.1; no specific financial figures disclosed in the 8-K.

## SEC filing metadata
- accession: 0000099780-24-000020
- form_type: 8-K
- ticker: TRN
- cik: 0000099780
- company_name: TRINITY INDUSTRIES INC
- filed_at: 2024-02-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/99780/000009978024000020/0000099780-24-000020-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/99780/000009978024000020/trn-20240226.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000099780-24-000020
- JSON: https://secwatch.observer/filing/0000099780-24-000020.json
- Plain text: https://secwatch.observer/filing/0000099780-24-000020.txt

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