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At the end of the award period, the Compensation Committee determines the payment amount based on pre-established performance criteria."}],"balance_after":0,"derivative":{"exercise_date":"2018-12-31","underlying":"Common Stock","underlying_shares":660},"source":{"system":"sec-edgar","filing":"0001562180-19-000907","document":"primarydocument.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1737603/000156218019000907/primarydocument.xml","form_type":"4"}},{"id":3663310,"issuer":{"id":3118,"kind":"organization","name":"Vulcan Materials CO"},"owners":[{"id":62823,"kind":"person","name":"Pigg Randy L.","position":1,"cik":"0001737603","reported_name":"Pigg Randy L.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President and Controller"}}],"security":"Common Stock","published_at":"2019-02-12T18:59:37.000Z","date":"2019-02-08","kind":"tax_withholding","acquired":false,"shares":341,"price":101.86,"value":34734.26,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares sold by the Company for tax withholding."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each performance unit is settled 100% in Vulcan common stock after deducting the amount of taxes due."}],"balance_after":1814,"source":{"system":"sec-edgar","filing":"0001562180-19-000907","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1737603/000156218019000907/primarydocument.xml","form_type":"4"}},{"id":3663309,"issuer":{"id":3118,"kind":"organization","name":"Vulcan Materials CO"},"owners":[{"id":62823,"kind":"person","name":"Pigg Randy L.","position":1,"cik":"0001737603","reported_name":"Pigg Randy L.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Vice President and Controller"}}],"security":"Common Stock","published_at":"2019-02-12T18:59:37.000Z","date":"2019-02-08","kind":"exercise","acquired":true,"shares":984,"price":101.86,"value":100230.24,"ownership":{"direct":true},"balance_after":2155,"source":{"system":"sec-edgar","filing":"0001562180-19-000907","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1737603/000156218019000907/primarydocument.xml","form_type":"4"}}]}