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the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Of these shares, 37,560 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain 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the grant of time-vested restricted stock units that will vest in one-third increments on each of December 31, 2020 and the next two anniversaries thereof, provided the service conditions are satisfied."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of December 31, 2020 and the next two anniversaries thereof, provided the service conditions are satisfied."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 37,560 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":92011,"source":{"system":"sec-edgar","filing":"0000874238-20-000015","document":"wf-form4_157833545562093.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000015/wf-form4_157833545562093.xml","form_type":"4"}},{"id":3324950,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common 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The shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were part of restricted stock awards, a portion of which were released on December 31, 2019 and January 1, 2020. The shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 22,318 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":76769,"source":{"system":"sec-edgar","filing":"0000874238-20-000010","document":"wf-form4_157807311196355.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000010/wf-form4_157807311196355.xml","form_type":"4"}},{"id":3606996,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-03-07T17:59:25.000Z","date":"2019-03-05","kind":"tax_withholding","acquired":false,"shares":1424,"price":14.47,"value":20605.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total number of shares has been corrected for an administrative error. The total number of shares as of March 5, 2019 is 81,862"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Of these shares, 38,259 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":81862,"source":{"system":"sec-edgar","filing":"0000874238-19-000055","document":"wf-form4_155198155094994.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000055/wf-form4_155198155094994.xml","form_type":"4"}},{"id":3606995,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-03-07T17:59:25.000Z","date":"2019-03-05","kind":"grant","acquired":true,"shares":4907,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted shares granted under the (2018) Senior Executive Incentive Compensation Plan."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted shares granted under the (2018) Senior Executive Incentive Compensation Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total number of shares has been corrected for an administrative error. The total number of shares as of March 5, 2019 is 81,862"}],"balance_after":83286,"source":{"system":"sec-edgar","filing":"0000874238-19-000055","document":"wf-form4_155198155094994.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000055/wf-form4_155198155094994.xml","form_type":"4"}},{"id":3692206,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-01-18T19:12:04.000Z","date":"2019-01-16","kind":"grant","acquired":true,"shares":19132,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of January 16, 2020 and the next two anniversaries thereof, provided the service conditions are satisfied."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of January 16, 2020 and the next two anniversaries thereof, provided the service conditions are satisfied."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 38,362 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":78482,"source":{"system":"sec-edgar","filing":"0000874238-19-000036","document":"wf-form4_154783870813104.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000036/wf-form4_154783870813104.xml","form_type":"4"}},{"id":3694004,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-01-17T20:59:10.000Z","date":"2018-01-17","kind":"grant","acquired":true,"shares":8062,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a grant of time-based restricted stock units, 4,455 of which will vest on December 18, 2018, and the remainder will vest in substantially equal installments on December 31, 2019, and December 31, 2020."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 3,607 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances. The total holdings is as of January 17, 2018."}],"balance_after":31931,"source":{"system":"sec-edgar","filing":"0000874238-19-000026","document":"wf-form4a_154775873358341.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000026/wf-form4a_154775873358341.xml","form_type":"4/A","original_submission_date":"2018-01-22"}},{"id":3711000,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-01-03T21:11:43.000Z","date":"2019-01-01","kind":"tax_withholding","acquired":false,"shares":2707,"price":10.89,"value":29479.23,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were part of a restricted stock award, a portion of which was released on January 1, 2019. The shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 24,535 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":64655,"source":{"system":"sec-edgar","filing":"0000874238-19-000021","document":"wf-form4_154654988522489.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000021/wf-form4_154654988522489.xml","form_type":"4"}},{"id":3715121,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2019-01-02T19:30:40.000Z","date":"2018-12-31","kind":"tax_withholding","acquired":false,"shares":1308,"price":10.89,"value":14244.12,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were part of a restricted stock award, a portion of which was released on December 31, 2018. The shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 32,346 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":67362,"source":{"system":"sec-edgar","filing":"0000874238-19-000015","document":"wf-form4_154645742310995.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000015/wf-form4_154645742310995.xml","form_type":"4"}},{"id":4004327,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2018-03-09T22:23:50.000Z","date":"2018-03-08","kind":"purchase","acquired":true,"shares":8000,"price":12.43,"value":99440.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This is the weighted average price per share at which the shares were purchased. The shares were purchased at prices ranging from $12.41 to $12.44 per share. Upon request, the Reporting Person will provide to the staff of the SEC, to the issuer, or to a security holder the full information regarding the number of shares purchased at each separate price."}],"balance_after":68670,"source":{"system":"sec-edgar","filing":"0000874238-18-000031","document":"wf-form4_152063420853391.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000031/wf-form4_152063420853391.xml","form_type":"4"}},{"id":4022112,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2018-03-02T19:47:17.000Z","date":"2018-03-01","kind":"grant","acquired":true,"shares":23434,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Award of time-based restricted stock units under the Company's 2017 Executive Incentive Compensation Plan. Awards vest in three equal installments on January 1, 2019, January 1, 2020, and January 1, 2021."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 36,801 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":60670,"source":{"system":"sec-edgar","filing":"0000874238-18-000017","document":"wf-form4_152002001886421.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000017/wf-form4_152002001886421.xml","form_type":"4"}},{"id":4091547,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Common Stock","published_at":"2018-01-24T19:05:02.000Z","date":"2018-01-17","kind":"grant","acquired":true,"shares":13367,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of January 17, 2019 and the next two anniversaries thereof, providedthe service conditions are satisfied."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of January 17, 2019 and the next two anniversaries thereof, providedthe service conditions are satisfied."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 13,367 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":37236,"source":{"system":"sec-edgar","filing":"0000874238-18-000009","document":"wf-form4_151682064173260.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000009/wf-form4_151682064173260.xml","form_type":"4"}},{"id":4239367,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Office"}}],"security":"Common Stock","published_at":"2017-08-09T17:14:06.000Z","date":"2017-06-22","kind":"purchase","acquired":true,"shares":17800,"price":11.123,"value":197989.4,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This is the weighted average price per share at which the shares were purchased.  1,581 shares were purchased at prices ranging from $10.84 to $10.99 per share; and 16,219 shares were purchased at prices ranging from $11.00 to $11.235 per share.  Upon request, the Reporting Person will provide to the staff of the SEC, to the issuer, or to a security holder the full information regarding the number of shares purchased at each separate price."}],"balance_after":23869,"source":{"system":"sec-edgar","filing":"0001140361-17-030768","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874238/000114036117030768/doc1.xml","form_type":"4"}},{"id":4239366,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":150967,"kind":"person","name":"WADSWORTH CON L","position":1,"cik":"0001612577","reported_name":"WADSWORTH CON L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Office"}}],"security":"Common Stock","published_at":"2017-08-09T17:14:06.000Z","date":"2017-06-20","kind":"purchase","acquired":true,"shares":1200,"price":10.491,"value":12589.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This is the weighted average price per share at which the shares were purchased.  The shares were purchased at prices ranging from $10.47 to $10.50 per share.  Upon request, the Reporting Person will provide to the staff of the SEC, to the issuer, or to a security holder the full information regarding the number of shares purchased at each separate price."}],"balance_after":6069,"source":{"system":"sec-edgar","filing":"0001140361-17-030768","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000114036117030768/doc1.xml","form_type":"4"}}]}