# Ecovyst Inc.: Form 8-K, filed Dec 12, 2025

- Company: [Ecovyst Inc.](/companies/ecvt.md) (CIK 1708035)
- Form: 8-K
- Filed: 2025-12-12
- Accepted by EDGAR: Dec 12, 2025, 16:30 ET
- Period: 2025-12-08
- Accession: 0001193125-25-317640
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1708035/000119312525317640/d79950d8k.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1708035/000119312525317640/

## Items reported

- Item 5.02: Departure or appointment of officers or directors

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1708035/000119312525317640/d79950d8k.htm

Filed Dec 12, 2025.
Source: SEC EDGAR, the filing index for accession 0001193125-25-317640. Last ingested by Listed: Nov 5, 2026, 16:25 ET. No prices; not investment advice.