---
schema_version: "secwatch.filing_event.v1"
accession: "0000074303-21-000154"
form_type: "8-K"
ticker: "OLN"
cik: "0000074303"
company_name: "OLIN Corp"
filed_at: "2021-09-30T23:59:59+00:00"
generated_at: "2026-06-29T00:31:13.078413+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Olin elects Matthew Darnall and Tony Will as directors; three directors resign

## Summary
- John M.B. O'Connor, Gray G. Benoist, W. Barnes Hauptfuhrer resigned effective Sept 27, 2021; no disagreement with Olin.
- Matthew S. Darnall (former Goldman Sachs MD) and W. Anthony Will (CF Industries CEO) elected effective Sept 30, 2021.
- Darnall will serve on Audit and Directors/Corporate Governance committees; Will on Compensation and Directors/Corporate Governance.
- Board size decreased from 11 to 10 directors via bylaw amendment effective Sept 30, 2021.

## SEC filing metadata
- accession: 0000074303-21-000154
- form_type: 8-K
- ticker: OLN
- cik: 0000074303
- company_name: OLIN Corp
- filed_at: 2021-09-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/oln-20210927.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000074303-21-000154
- JSON: https://secwatch.observer/filing/0000074303-21-000154.json
- Plain text: https://secwatch.observer/filing/0000074303-21-000154.txt

## Key facts
- Executive change
  John M. B. O'Connor resigned as Director at OLIN Corp.
  - Action: resigned
  - Role: Director
  source text: On September 27, 2021, Gray G. Benoist, W. Barnes Hauptfuhrer and John M. B. O’Connor, non-executive Directors of Olin Corporation (“Olin”), each advised Olin of his decision to resign from Olin’s Board of Directors and the Board Committees on which they served, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm
- Executive change
  W. Anthony Will was elected as Director at OLIN Corp.
  - Action: elected
  - Role: Director
  source text: On September 30, 2021, Olin’s Board elected Matthew S. Darnall and W. Anthony Will as Directors, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm
- Executive change
  W. Barnes Hauptfuhrer resigned as Director at OLIN Corp.
  - Action: resigned
  - Role: Director
  source text: On September 27, 2021, Gray G. Benoist, W. Barnes Hauptfuhrer and John M. B. O’Connor, non-executive Directors of Olin Corporation (“Olin”), each advised Olin of his decision to resign from Olin’s Board of Directors and the Board Committees on which they served, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm
- Executive change
  Matthew S. Darnall was elected as Director at OLIN Corp.
  - Action: elected
  - Role: Director
  source text: On September 30, 2021, Olin’s Board elected Matthew S. Darnall and W. Anthony Will as Directors, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm
- Executive change
  Gray G. Benoist resigned as Director at OLIN Corp.
  - Action: resigned
  - Role: Director
  source text: On September 27, 2021, Gray G. Benoist, W. Barnes Hauptfuhrer and John M. B. O’Connor, non-executive Directors of Olin Corporation (“Olin”), each advised Olin of his decision to resign from Olin’s Board of Directors and the Board Committees on which they served, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/74303/000007430321000154/0000074303-21-000154-index.htm

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