0000950170-23-006486.txt : 20230307 0000950170-23-006486.hdr.sgml : 20230307 20230307170145 ACCESSION NUMBER: 0000950170-23-006486 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230303 FILED AS OF DATE: 20230307 DATE AS OF CHANGE: 20230307 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Vann Kyle D CENTRAL INDEX KEY: 0001362531 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38221 FILM NUMBER: 23713458 MAIL ADDRESS: STREET 1: 11 HEPPLEWHITE WAY CITY: THE WOODLANDS STATE: TX ZIP: 77382 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Ecovyst Inc. CENTRAL INDEX KEY: 0001708035 STANDARD INDUSTRIAL CLASSIFICATION: CHEMICALS & ALLIED PRODUCTS [2800] IRS NUMBER: 813406833 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 300 LINDENWOOD DRIVE CITY: MALVERN STATE: PA ZIP: 19355 BUSINESS PHONE: 484-617-1200 MAIL ADDRESS: STREET 1: 300 LINDENWOOD DRIVE CITY: MALVERN STATE: PA ZIP: 19355 FORMER COMPANY: FORMER CONFORMED NAME: PQ Group Holdings Inc. DATE OF NAME CHANGE: 20170531 4 1 ownership.xml 4 X0306 4 2023-03-03 false 0001708035 Ecovyst Inc. ECVT 0001362531 Vann Kyle D C/O ECOVYST INC. 300 LINDENWOOD DRIVE MALVERN PA 19355 true false false false Common Stock 2023-03-03 4 P false 10000 11.0217 A 182320 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.015 to $11.03, inclusive. The reporting person undertakes to provide to EcovystInc., any security holder of Ecovyst Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price. /s/ Joseph S. Koscinski, as attorney-in-fact for Kyle D. Vann 2023-03-07