Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001708035-26-000079
Filing Date
2026-06-03
Accepted
2026-06-03 16:01:47
Documents
1
Period of Report
2026-06-02

Document Format Files

Seq Description Document Type Size
1 FORM 4 wk-form4_1780516905.html 4  
1 FORM 4 wk-form4_1780516905.xml 4 3144
  Complete submission text file 0001708035-26-000079.txt   4666
Mailing Address 600 LEE ROAD, SUITE 200 WAYNE PA 19087
Business Address 600 LEE ROAD, SUITE 200 WAYNE PA 19087 484-617-1200
Ecovyst Inc. (Issuer) CIK: 0001708035 (see all company filings)

EIN.: 813406833 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2800 Chemicals & Allied Products
(CF Office: 08 Industrial Applications and Services)

Mailing Address C/O ECOVYST INC. 600 LEE ROAD, SUITE 200 WAYNE PA 19087
Business Address
Lorance Sarah (Reporting) CIK: 0002012367 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-38221 | Film No.: 261060528