---
schema_version: "secwatch.filing_event.v1"
accession: "0000074303-26-000005"
form_type: "8-K"
ticker: "OLN"
cik: "0000074303"
company_name: "OLIN Corp"
filed_at: "2026-01-29T23:59:59+00:00"
generated_at: "2026-05-16T06:43:20.125767+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Olin Q4 net loss $85.7M; adj. EBITDA $67.7M; guides Q1 lower

## Summary
- Q4 2025 net loss $85.7M ($0.75/dil. share) vs Q4 2024 net income $10.7M ($0.09/dil. share).
- Adjusted EBITDA $67.7M vs $193.4M in Q4 2024; sales $1,665.1M vs $1,671.3M.
- Chlor Alkali segment loss $14.7M; Epoxy loss $19.2M; Winchester earnings $0.6M.
- Guided Q1 2026 adj. EBITDA lower than Q4 2025, citing higher maintenance and raw material costs.
- Beyond250 initiative delivered $44M structural cost savings in 2025; closed Guarujá, Brazil Epoxy plant.

## SEC filing metadata
- accession: 0000074303-26-000005
- form_type: 8-K
- ticker: OLN
- cik: 0000074303
- company_name: OLIN Corp
- filed_at: 2026-01-29T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/74303/000007430326000005/0000074303-26-000005-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/74303/000007430326000005/oln-20260129.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000074303-26-000005
- JSON: https://secwatch.observer/filing/0000074303-26-000005.json
- Plain text: https://secwatch.observer/filing/0000074303-26-000005.txt

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