---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-271782"
form_type: "8-K"
ticker: "OLN"
cik: "0000074303"
company_name: "OLIN Corp"
filed_at: "2026-06-16T10:46:37+00:00"
generated_at: "2026-06-16T10:50:15.797527+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Olin and Huntsman merge in all-stock deal to form $12B+ chemicals leader

## Summary
- All-stock merger of equals; Olin shareholders ~54.5%, Huntsman ~45.5% ownership of OlinHuntsman.
- Ken Lane (Olin CEO) to be CEO, Peter Huntsman non-executive Chairman; Phil Lister CFO; HQ in The Woodlands, TX.
- Identified >$400M cost synergies and integration benefits plus ~$125M cash tax benefits from NOLs.
- Exchange ratio: 0.5476 Olin shares per Huntsman share; expected close first half 2027.
- Combined 2025 pro forma revenue ~$12.5B; creates vertical integration in chlorine and downstream materials.

## SEC filing metadata
- accession: 0001193125-26-271782
- form_type: 8-K
- ticker: OLN
- cik: 0000074303
- company_name: OLIN Corp
- filed_at: 2026-06-16T10:46:37+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/74303/000119312526271782/0001193125-26-271782-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/74303/000119312526271782/d99037d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-271782
- JSON: https://secwatch.observer/filing/0001193125-26-271782.json
- Plain text: https://secwatch.observer/filing/0001193125-26-271782.txt

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