Company facts
- Industry
- Chemicals & Allied Products
- Headquarters
- Wayne, Pennsylvania
- Most recent report
- 8-K, filed Aug 24, 2026
- Incorporated
- Delaware
- Filings on record
- 571 filings
- On EDGAR
- CIK 1708035
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 36
News 8 of 113
Prospectuses and Registrations 8 of 17
- FWP Free writing prospectus May 24, 2023
- FWP Free writing prospectus Mar 2, 2023
- FWP Free writing prospectus Nov 15, 2022
- FWP Free writing prospectus Aug 3, 2022
- S-8 Registration statement for an employee plan Jan 14, 2022
- S-3ASR Automatic shelf registration Apr 26, 2021
- S-8 Registration statement for an employee plan Oct 1, 2018
- S-8 Registration statement for an employee plan Oct 2, 2017
Proxies 8 of 12
- DEF 14A Proxy statement for a shareholder vote Apr 15, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 8, 2025
- DEFA14A Extra proxy material May 6, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 8, 2024
- PRE 14A Preliminary proxy statement Mar 15, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 13, 2023
- DEF 14A Proxy statement for a shareholder vote Apr 29, 2022
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2021
Ownership 8 of 344
- 4 Insider reported a trade Aug 26, 2026
- 3 Insider reported their initial holding Aug 26, 2026
- SCHEDULE 13G Large holder reported a passive stake Jul 31, 2026
- 144 Notice of a proposed sale of restricted stock Jul 17, 2026
- SCHEDULE 13G/A Large holder reported a passive stake, amended Jul 14, 2026
- 4 Insider reported a trade Jun 3, 2026
- 144 Notice of a proposed sale of restricted stock Jun 2, 2026
- 4 Insider reported a trade May 27, 2026
Other 8 of 49
- 11-K Employee stock plan report Jun 22, 2026
- ARS Annual report sent to shareholders Apr 15, 2026
- 11-K Employee stock plan report Jun 20, 2025
- SD Conflict minerals disclosure May 30, 2025
- ARS Annual report sent to shareholders Apr 8, 2025
- 11-K Employee stock plan report Jun 21, 2024
- SD Conflict minerals disclosure May 31, 2024
- ARS Annual report sent to shareholders Apr 8, 2024
Everything here comes from Ecovyst Inc.'s own filings on SEC EDGAR. The filing list is rechecked every hour.