---
schema_version: "secwatch.filing_event.v1"
accession: "0001227654-24-000113"
form_type: "8-K"
ticker: "CMP"
cik: "0001227654"
company_name: "COMPASS MINERALS INTERNATIONAL INC"
filed_at: "2024-05-17T23:59:59+00:00"
generated_at: "2026-06-01T14:36:09.862072+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Compass Minerals amends bylaws to adopt universal proxy rule compliance and update disclosure requirements

## Summary
- Bylaws amended to require stockholder director nominations to comply with Rule 14a-19 (universal proxy).
- Updated 'Acting in Concert' definition — person deemed acting in concert only if agreement regarding nomination/business.
- Removed 'any third party' from list of parties whose agreements must be disclosed in connection with business proposals.
- Provisions governing director nominations updated to address new universal proxy rules.

## SEC filing metadata
- accession: 0001227654-24-000113
- form_type: 8-K
- ticker: CMP
- cik: 0001227654
- company_name: COMPASS MINERALS INTERNATIONAL INC
- filed_at: 2024-05-17T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1227654/000122765424000113/0001227654-24-000113-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227654/000122765424000113/cmp-20240516.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001227654-24-000113
- JSON: https://secwatch.observer/filing/0001227654-24-000113.json
- Plain text: https://secwatch.observer/filing/0001227654-24-000113.txt

## Key facts
- Governance Changes
  COMPASS MINERALS INTERNATIONAL INC: Amended and restated bylaws to comply with Rule 14a-19, update disclosure requirements, and adjust universal proxy rules (effective 2024-05-16).
  - Change: bylaw amendment
  - Effective: 2024-05-16
  source text: On May 16, 2024, Compass Minerals International, Inc. (the “Company”) upon the recommendation of its Nominating and Corporate Governance Committee, approved amended and restated bylaws of the Company (the “Bylaws”, and such amendment, the “Bylaw Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1227654/000122765424000113/0001227654-24-000113-index.htm

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