---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-107418"
form_type: "8-K"
ticker: "SNCY"
cik: "0001743907"
company_name: "Sun Country Airlines Holdings, Inc."
filed_at: "2026-03-16T23:59:59+00:00"
generated_at: "2026-05-15T11:51:39.231898+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Allegiant and Sun Country receive early termination of HSR waiting period for proposed merger

## Summary
- HSR antitrust waiting period terminated early by DOJ; deal now expected to close in Q2 or Q3 2026.
- Transaction still subject to DOT approval of interim exemption and shareholder votes of both companies.
- Allegiant CEO cites broader network and more travel options as benefits of combining with Sun Country.

## SEC filing metadata
- accession: 0001193125-26-107418
- form_type: 8-K
- ticker: SNCY
- cik: 0001743907
- company_name: Sun Country Airlines Holdings, Inc.
- filed_at: 2026-03-16T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1743907/000119312526107418/0001193125-26-107418-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1743907/000119312526107418/d37195d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-107418
- JSON: https://secwatch.observer/filing/0001193125-26-107418.json
- Plain text: https://secwatch.observer/filing/0001193125-26-107418.txt

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