---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-154861"
form_type: "8-K"
ticker: "ECVT"
cik: "0001708035"
company_name: "Ecovyst Inc."
filed_at: "2023-05-26T23:59:59+00:00"
generated_at: "2026-06-14T13:09:40.744645+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ecovyst announces secondary offering of 14M shares by INEOS at $10.88; company to repurchase 4M shares

## Summary
- 14M shares offered by INEOS Limited at $10.8808; underwriter has 30-day option for additional 2.1M shares.
- Ecovyst to repurchase 4M shares from underwriter for $43.5M, funded from cash on hand and operations.
- Closing expected May 26, 2023, subject to customary closing conditions.
- Estimated offering expenses total $750,000 (SEC fee $19.8k, legal $555k, accounting $125k).

## SEC filing metadata
- accession: 0001193125-23-154861
- form_type: 8-K
- ticker: ECVT
- cik: 0001708035
- company_name: Ecovyst Inc.
- filed_at: 2023-05-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708035/000119312523154861/0001193125-23-154861-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708035/000119312523154861/d456136d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-154861
- JSON: https://secwatch.observer/filing/0001193125-23-154861.json
- Plain text: https://secwatch.observer/filing/0001193125-23-154861.txt

## Key facts
- Material Agreements
  Ecovyst Inc. entered into Underwriting Agreement with J.P. Morgan Securities LLC valued at 14,000,000 shares at $10.8808 per share, plus Company repurchase of 4,000,000 shares for $43,523,200 (effective 2023-05-23).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: J.P. Morgan Securities LLC
  - Value: 14,000,000 shares at $10.8808 per share, plus Company repurchase of 4,000,000 shares for $43,523,200
  - Effective: 2023-05-23
  source text: On May 23, 2023, Ecovyst Inc. (the “ Company ”) entered into an Underwriting Agreement (the “ Underwriting Agreement ”) with J.P. Morgan Securities LLC (the “ Underwriter ”) and INEOS Limited (the “ Selling Stockholder ”), relating to the underwritten offering of 14,000,000 shares (the “ Shares ”), including the Underwriter’s 30-day option to purchase up to an additional 2,100,000 shares of the Company’s common stock, par value $0.01 per share, from the Selling Stockholder, (the “ Offering ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1708035/000119312523154861/0001193125-23-154861-index.htm

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