---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-297060"
form_type: "8-K"
ticker: "ECVT"
cik: "0001708035"
company_name: "Ecovyst Inc."
filed_at: "2023-12-18T23:59:59+00:00"
generated_at: "2026-06-07T11:21:31.310494+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Ecovyst director Jonny Ginns resigns; board plans declassification proposal for 2024 annual meeting

## Summary
- Jonny Ginns notified resignation from Board effective Dec 31, 2023; served since 2010.
- Resignation not due to any disagreement with the Company.
- Board reduced to 8 members upon Ginns' departure.
- Board intends to propose eliminating classified Board at 2024 annual meeting, transitioning to annual director elections starting 2025.
- Declassification proposal will require majority vote of outstanding shares.

## SEC filing metadata
- accession: 0001193125-23-297060
- form_type: 8-K
- ticker: ECVT
- cik: 0001708035
- company_name: Ecovyst Inc.
- filed_at: 2023-12-18T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708035/000119312523297060/0001193125-23-297060-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708035/000119312523297060/d859346d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-297060
- JSON: https://secwatch.observer/filing/0001193125-23-297060.json
- Plain text: https://secwatch.observer/filing/0001193125-23-297060.txt

## Key facts
- Executive change
  Jonny Ginns resigned as Director at Ecovyst Inc..
  - Action: resigned
  - Role: Director
  source text: On December 12, 2023, Jonny Ginns notified Ecovyst Inc. (the “Company”) that he would be resigning from the Company’s Board of Directors (the “Board”), effective December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1708035/000119312523297060/0001193125-23-297060-index.htm

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