---
schema_version: "secwatch.filing_event.v1"
accession: "0001739445-25-000122"
form_type: "8-K"
ticker: "ACA"
cik: "0001739445"
company_name: "Arcosa, Inc."
filed_at: "2025-09-12T23:59:59+00:00"
generated_at: "2026-05-17T06:45:17.333542+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.05
calibrated_materiality_score: 0.05
confidence: "low"
source: SEC EDGAR
---

# Arcosa updates investor presentation; no financial details in exhibit excerpt

## Summary
- Filed updated investor presentation dated September 2025 under Item 7.01 Regulation FD.
- Exhibit 99.1 provided is only a title slide; no specific financial data or guidance included.
- Presentation made available on www.arcosa.com; content not reproduced in the filing.
- No material changes or new business disclosures identified from the limited exhibit text.

## SEC filing metadata
- accession: 0001739445-25-000122
- form_type: 8-K
- ticker: ACA
- cik: 0001739445
- company_name: Arcosa, Inc.
- filed_at: 2025-09-12T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.05
- calibrated_materiality_score: 0.05
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1739445/000173944525000122/0001739445-25-000122-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1739445/000173944525000122/aca-20250912.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001739445-25-000122
- JSON: https://secwatch.observer/filing/0001739445-25-000122.json
- Plain text: https://secwatch.observer/filing/0001739445-25-000122.txt

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