---
schema_version: "secwatch.filing_event.v1"
accession: "0001227654-21-000248"
form_type: "8-K"
ticker: "CMP"
cik: "0001227654"
company_name: "COMPASS MINERALS INTERNATIONAL INC"
filed_at: "2021-10-12T23:59:59+00:00"
generated_at: "2026-06-28T21:19:38.286928+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Compass Minerals appoints Gareth Joyce to board, adding EV battery and sustainability expertise

## Summary
- Board expanded from 8 to 9 directors; Joyce appointed effective Oct. 12, 2021, term expires at Feb. 2022 annual meeting.
- Joyce is president of Proterra Inc., an electric commercial vehicle tech company; previously held roles at Delta and Daimler.
- Joyce will serve on Environmental, Health, Safety & Sustainability Committee and Nominating/Corporate Governance Committee.
- Appointment supports Compass Minerals' recently announced lithium development strategy, per chairman statement.
- Received prorated equity grant of $115,000 vesting Oct. 12, 2022; enters standard indemnification agreement.

## SEC filing metadata
- accession: 0001227654-21-000248
- form_type: 8-K
- ticker: CMP
- cik: 0001227654
- company_name: COMPASS MINERALS INTERNATIONAL INC
- filed_at: 2021-10-12T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1227654/000122765421000248/0001227654-21-000248-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1227654/000122765421000248/cmp-20211012.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001227654-21-000248
- JSON: https://secwatch.observer/filing/0001227654-21-000248.json
- Plain text: https://secwatch.observer/filing/0001227654-21-000248.txt

## Key facts
- Executive change
  Gareth T. Joyce was appointed as Director at COMPASS MINERALS INTERNATIONAL INC.
  - Action: appointed
  - Role: Director
  source text: Effective October 12, 2021, the Board of Directors (the “Board”) of Compass Minerals International, Inc. (the “Company”) increased the size of the Board from eight directors to nine directors and appointed Gareth T. Joyce as a director with a term expiring at the Company’s next annual meeting of stockholders, which is scheduled for February 24, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1227654/000122765421000248/0001227654-21-000248-index.htm

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