---
schema_version: "secwatch.filing_event.v1"
accession: "0001402829-26-000049"
form_type: "8-K/A"
ticker: "ORN"
cik: "0001402829"
company_name: "Orion Group Holdings Inc"
filed_at: "2026-08-04T20:17:53+00:00"
generated_at: "2026-08-04T20:19:11.694924+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Orion Group Holdings amends Q2 2026 investor presentation to correct slide 17 timing labels

## Summary
- Amendment revises slide 17 timing from '1H2027' to 'FY2027' to align with calendar-year periods.
- No other changes were made to the original 8-K filed July 29, 2026.
- The investor presentation was originally posted on July 29, 2026, and is attached as Exhibit 99.2.

## SEC filing metadata
- accession: 0001402829-26-000049
- form_type: 8-K/A
- ticker: ORN
- cik: 0001402829
- company_name: Orion Group Holdings Inc
- filed_at: 2026-08-04T20:17:53+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1402829/000140282926000049/0001402829-26-000049-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1402829/000140282926000049/orn-20260728x8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001402829-26-000049
- JSON: https://secwatch.observer/filing/0001402829-26-000049.json
- Plain text: https://secwatch.observer/filing/0001402829-26-000049.txt

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