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The shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, only the 7,013 shares just awarded are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":41860,"source":{"system":"sec-edgar","filing":"0000874238-19-000093","document":"wf-form4_155740817619648.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000093/wf-form4_155740817619648.xml","form_type":"4"}},{"id":3921160,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":149420,"kind":"person","name":"Davenport Marian M","position":1,"cik":"0001597150","reported_name":"Davenport Marian M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-23T20:45:02.000Z","date":"2018-05-22","kind":"sale","acquired":false,"shares":8000,"price":12.81,"value":102480.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Reporting Person sold shares of common stock to cover tax obligations resulting from the vesting of restricted stock awards granted by the Issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 7,404 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":34847,"source":{"system":"sec-edgar","filing":"0000874238-18-000066","document":"wf-form4_152710823832398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000066/wf-form4_152710823832398.xml","form_type":"4"}},{"id":3941741,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":149420,"kind":"person","name":"Davenport Marian M","position":1,"cik":"0001597150","reported_name":"Davenport Marian M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-09T14:28:55.000Z","date":"2018-05-08","kind":"grant","acquired":true,"shares":7404,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to the Reporting Person by the Company pursuant to the Company's standard director compensation arrangements for non-employee directors.  The shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, only the 7,404 shares just awarded are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":42847,"source":{"system":"sec-edgar","filing":"0000874238-18-000056","document":"wf-form4_152587607510251.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000056/wf-form4_152587607510251.xml","form_type":"4"}},{"id":4340922,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":149420,"kind":"person","name":"Davenport Marian M","position":1,"cik":"0001597150","reported_name":"Davenport Marian M","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-01T18:37:54.000Z","date":"2017-04-28","kind":"grant","acquired":true,"shares":5257,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were awarded to the Reporting Person by the Company pursuant to the Company's standard director compensation arrangements for non-employee directors.  The shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were awarded to the Reporting Person by the Company pursuant to the Company's standard director compensation arrangements for non-employee directors.  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