0001708035-24-000109.txt : 20240808 0001708035-24-000109.hdr.sgml : 20240808 20240808160100 ACCESSION NUMBER: 0001708035-24-000109 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240807 FILED AS OF DATE: 20240808 DATE AS OF CHANGE: 20240808 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Whittleston Paul CENTRAL INDEX KEY: 0001958277 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38221 FILM NUMBER: 241188019 MAIL ADDRESS: STREET 1: C/O ECOVYST INC. STREET 2: 300 LINDENWOOD DRIVE CITY: MALVERN STATE: PA ZIP: 19355 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Ecovyst Inc. CENTRAL INDEX KEY: 0001708035 STANDARD INDUSTRIAL CLASSIFICATION: CHEMICALS & ALLIED PRODUCTS [2800] ORGANIZATION NAME: 08 Industrial Applications and Services 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 wk-form4_1723147251.xml FORM 4 X0508 4 2024-08-07 0 0001708035 Ecovyst Inc. ECVT 0001958277 Whittleston Paul C/O ECOVYST INC. 300 LINDENWOOD DRIVE MALVERN PA 19355 0 1 0 0 See Remarks 0 Common Stock 2024-08-07 4 P 0 7800 6.505 A 57542 D President, Advanced Materials & Catalysts /s/ Joseph S. Koscinski, as attorney-in-fact for Paul Whittleston 2024-08-08