<SEC-DOCUMENT>0000866273-23-000031-index.html : 20230828 <SEC-HEADER>0000866273-23-000031.hdr.sgml : 20230828 <ACCEPTANCE-DATETIME>20230828125617 ACCESSION NUMBER: 0000866273-23-000031 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230824 FILED AS OF DATE: 20230828 DATE AS OF CHANGE: 20230828 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: AUSTIN NANCY E CENTRAL INDEX KEY: 0001349287 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-15461 FILM NUMBER: 231213259 MAIL ADDRESS: STREET 1: 5100 EAST SKELLY DRIVE, SUITE 700 CITY: TULSA STATE: OK ZIP: 74135 FORMER NAME: FORMER CONFORMED NAME: Downs Nancy E DATE OF NAME CHANGE: 20060110 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MATRIX SERVICE CO CENTRAL INDEX KEY: 0000866273 STANDARD INDUSTRIAL CLASSIFICATION: CONSTRUCTION SPECIAL TRADE CONTRACTORS [1700] IRS NUMBER: 731352174 STATE OF INCORPORATION: DE FISCAL YEAR END: 0630 BUSINESS ADDRESS: STREET 1: 15 EAST 5TH STREET STREET 2: SUITE 1100 CITY: TULSA STATE: OK ZIP: 74103 BUSINESS PHONE: 9188388822 MAIL ADDRESS: STREET 1: 15 EAST 5TH STREET STREET 2: SUITE 1100 CITY: TULSA STATE: OK ZIP: 74103 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>wf-form4_169324176383796.xml <DESCRIPTION>FORM 4 <TEXT> Document 1 - file: wf-form4_169324176383796.html
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