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SHARES DISPOSED TO SATISFY TAX OBLIGATION DUE ON VEST DATE FOR TIME-BASED GRANT."}],"balance_after":37207,"source":{"system":"sec-edgar","filing":"0000866273-19-000045","document":"wf-form4_156693281504180.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866273/000086627319000045/wf-form4_156693281504180.xml","form_type":"4"}},{"id":3813580,"issuer":{"id":2743,"kind":"organization","name":"MATRIX SERVICE CO","symbol":"MTRX"},"owners":[{"id":65766,"kind":"person","name":"AUSTIN NANCY E","position":1,"cik":"0001349287","reported_name":"AUSTIN NANCY E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Strategic Services & Admin"}}],"security":"COMMON STOCK","published_at":"2018-09-18T21:29:21.000Z","date":"2018-09-17","kind":"sale","acquired":false,"shares":10868,"price":24.7428,"value":268904.7504,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"MATRIX SERVICE COMPANY COMMON STOCK."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"THE PRICE REPORTED IS A WEIGHTED AVERAGE PRICE.  THESE SHARES WERE SOLD IN MULTIPLE TRANSACTIONS AT PRICES RANGING FROM $24.50 TO $25.15, INCLUSIVE.  THE REPORTING PERSON UNDERTAKES TO PROVIDE TO MATRIX SERVICE COMPANY, ANY SECURITY HOLDER OF MATRIX SERVICE COMPANY, OR THE STAFF OF THE SECURITIES AND EXCHANGE COMMISSION, UPON REQUEST, FULL INFORMATION REGARDING THE NUMBER OF SHARES SOLD AT EACH SEPARATE PRICE WITHIN THE RANGE SET FORTH."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"INCLUDES 22,184 SHARES OF MATRIX SERVICE COMPANY COMMON STOCK OWNED OUTRIGHT."}],"balance_after":37716,"source":{"system":"sec-edgar","filing":"0000866273-18-000088","document":"wf-form4_153730614515189.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866273/000086627318000088/wf-form4_153730614515189.xml","form_type":"4"}},{"id":3830990,"issuer":{"id":2743,"kind":"organization","name":"MATRIX SERVICE CO","symbol":"MTRX"},"owners":[{"id":65766,"kind":"person","name":"AUSTIN NANCY E","position":1,"cik":"0001349287","reported_name":"AUSTIN NANCY E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Strategic Services & Admin"}}],"security":"COMMON STOCK","published_at":"2018-08-29T23:19:40.000Z","date":"2018-08-29","kind":"tax_withholding","acquired":false,"shares":522,"price":21.325,"value":11131.65,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"MATRIX SERVICE COMPANY COMMON STOCK."},{"field":"shares","element":"transactionShares","label":"F5","text":"RESTRICTED STOCK UNIT AWARD - SHARES DISPOSED TO SATISFY TAX OBLIGATION DUE ON VEST DATE FOR TIME-BASED GRANT."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"INCLUDES 33,052 SHARES OF MATRIX SERVICE COMPANY COMMON STOCK OWNED OUTRIGHT."}],"balance_after":48584,"source":{"system":"sec-edgar","filing":"0000866273-18-000067","document":"wf-form4_153558476342111.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/866273/000086627318000067/wf-form4_153558476342111.xml","form_type":"4"}},{"id":3830989,"issuer":{"id":2743,"kind":"organization","name":"MATRIX SERVICE CO","symbol":"MTRX"},"owners":[{"id":65766,"kind":"person","name":"AUSTIN NANCY E","position":1,"cik":"0001349287","reported_name":"AUSTIN NANCY E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Strategic Services & Admin"}}],"security":"COMMON STOCK","published_at":"2018-08-29T23:19:40.000Z","date":"2018-08-27","kind":"grant","acquired":true,"shares":1271,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"MATRIX SERVICE COMPANY COMMON STOCK."},{"field":"shares","element":"transactionShares","label":"F4","text":"RESTRICTED STOCK UNIT - EACH UNIT WILL ENTITLE THE REPORTING PERSON TO ONE SHARE OF MATRIX SERVICE COMPANY COMMON STOCK IF AND WHEN THE CONDITIONS OF THE RESTRICTION HAVE BEEN SATISFIED.  THIS AWARD WAS EARNED UNDER THE COMPANY'S SHORT-TERM INCENTIVE COMPENSATION PLAN FOR FISCAL 2018 SAFETY PERFORMANCE AND WILL VEST ON THE FIRST ANNIVERSARY DATE OF THE AWARD."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"NOT APPLICABLE."}],"balance_after":49106,"source":{"system":"sec-edgar","filing":"0000866273-18-000067","document":"wf-form4_153558476342111.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/866273/000086627318000067/wf-form4_153558476342111.xml","form_type":"4"}},{"id":3830988,"issuer":{"id":2743,"kind":"organization","name":"MATRIX SERVICE CO","symbol":"MTRX"},"owners":[{"id":65766,"kind":"person","name":"AUSTIN NANCY E","position":1,"cik":"0001349287","reported_name":"AUSTIN NANCY E","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Strategic Services & Admin"}}],"security":"COMMON STOCK","published_at":"2018-08-29T23:19:40.000Z","date":"2018-08-27","kind":"grant","acquired":true,"shares":5756,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"MATRIX SERVICE COMPANY COMMON STOCK."},{"field":"shares","element":"transactionShares","label":"F2","text":"RESTRICTED STOCK UNIT - EACH UNIT WILL ENTITLE THE REPORTING PERSON TO ONE SHARE OF MATRIX SERVICE COMPANY COMMON STOCK IF AND WHEN THE CONDITIONS OF THE RESTRICTION HAVE BEEN SATISFIED.  FOR THIS GRANT, 25% WILL VEST EACH YEAR FOR THE NEXT FOUR YEARS ON THE ANNIVERSARY DATES."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"NOT APPLICABLE."}],"balance_after":47835,"source":{"system":"sec-edgar","filing":"0000866273-18-000067","document":"wf-form4_153558476342111.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/866273/000086627318000067/wf-form4_153558476342111.xml","form_type":"4"}}],"next_cursor":"2018-08-29T23:19:40.000000Z,3830988"}