---
schema_version: "secwatch.filing_event.v1"
accession: "0000099780-24-000132"
form_type: "8-K"
ticker: "TRN"
cik: "0000099780"
company_name: "TRINITY INDUSTRIES INC"
filed_at: "2024-09-09T23:59:59+00:00"
generated_at: "2026-05-31T06:00:15.460433+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Trinity Industries amends bylaws: extends nomination notice period to 90-120 days, adds disclosure rules

## Summary
- Advance notice period for stockholder nominations and business changed from 60-90 days to 90-120 days before annual meeting anniversary.
- New disclosure requirements including hedging and voting power arrangements for nominating stockholders.
- Stockholder nominees must complete director questionnaire, consent to be named, and confirm compliance with company policies.
- Exclusive forum provisions expanded: Delaware courts for internal claims, federal courts for Securities Act claims.
- Effective September 4, 2024; for 2025 annual meeting, nominations must be received Jan 20 – Feb 19, 2025.

## SEC filing metadata
- accession: 0000099780-24-000132
- form_type: 8-K
- ticker: TRN
- cik: 0000099780
- company_name: TRINITY INDUSTRIES INC
- filed_at: 2024-09-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/99780/000009978024000132/0000099780-24-000132-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/99780/000009978024000132/trn-20240904.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000099780-24-000132
- JSON: https://secwatch.observer/filing/0000099780-24-000132.json
- Plain text: https://secwatch.observer/filing/0000099780-24-000132.txt

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