---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-032102"
form_type: "8-K"
ticker: "CTRI"
cik: "0001981599"
company_name: "Centuri Holdings, Inc."
filed_at: "2025-06-18T23:59:59+00:00"
generated_at: "2026-05-19T03:37:44.947179+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Southwest Gas sells 11.2M Centuri shares at $20.75; Icahn buys 1.06M in private placement

## Summary
- Southwest Gas sold 11,212,500 Centuri shares ($20.75 each; net proceeds ~$225M); Centuri received no proceeds.
- Concurrent private placement of 1,060,240 shares to Icahn Investors at $20.75; closing subject to HSR waiting period.
- Post-offering, Southwest Gas owns ~53.3% of Centuri; after private placement would own ~52.1%.
- Centuri granted resale registration rights to Icahn for the private placement shares, with deadline 181 days after May 22, 2025.
- Underwriters and insiders subject to 45-day lock-up; company entered underwriting agreement with J.P. Morgan.

## SEC filing metadata
- accession: 0001628280-25-032102
- form_type: 8-K
- ticker: CTRI
- cik: 0001981599
- company_name: Centuri Holdings, Inc.
- filed_at: 2025-06-18T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1981599/000162828025032102/0001628280-25-032102-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1981599/000162828025032102/ctri-20250613.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-032102
- JSON: https://secwatch.observer/filing/0001628280-25-032102.json
- Plain text: https://secwatch.observer/filing/0001628280-25-032102.txt

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