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shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":258332,"source":{"system":"sec-edgar","filing":"0000874238-25-000127","document":"wk-form4_1757024456.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423825000127/wk-form4_1757024456.xml","form_type":"4"}},{"id":1208477,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP"}}],"security":"Common 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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 unit award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Of these shares, 7,188 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":256869,"source":{"system":"sec-edgar","filing":"0000874238-25-000031","document":"wk-form4_1740777396.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423825000031/wk-form4_1740777396.xml","form_type":"4"}},{"id":1239545,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, 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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 unit award was made."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total share ownership includes 268 shares acquired under the Company's 2019 Employee Stock Purchase Plan. Of these shares, 7,189 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":244603,"source":{"system":"sec-edgar","filing":"0000874238-25-000009","document":"wk-form4_1735946660.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423825000009/wk-form4_1735946660.xml","form_type":"4"}},{"id":1323480,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP"}}],"security":"Common Stock","published_at":"2024-12-23T23:04:47.000Z","date":"2024-12-20","kind":"gift","planned":false,"acquired":false,"shares":144,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Reflects a gift of common stock to a charitable organization."}],"balance_after":248327,"source":{"system":"sec-edgar","filing":"0000874238-24-000152","document":"wk-form4_1734995080.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423824000152/wk-form4_1734995080.xml","form_type":"4"}},{"id":1401216,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP"}}],"security":"Common Stock","published_at":"2024-09-23T20:11:45.000Z","date":"2024-09-19","kind":"sale","planned":false,"acquired":false,"shares":18700,"price":143.59,"value":2685133.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Transaction executed in multiple trades at prices ranging from $138.99 to $147.51 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 17,328 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":248471,"source":{"system":"sec-edgar","filing":"0000874238-24-000139","document":"wk-form4_1727122298.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423824000139/wk-form4_1727122298.xml","form_type":"4"}},{"id":1562586,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2024-03-25T22:01:16.000Z","date":"2024-03-25","kind":"sale","planned":false,"acquired":false,"shares":3289,"price":113.518,"value":373360.702,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Transaction executed in multiple trades at prices ranging from $113.50 to $113.59 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 17,328 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":267171,"source":{"system":"sec-edgar","filing":"0000874238-24-000058","document":"wk-form4_1711404067.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423824000058/wk-form4_1711404067.xml","form_type":"4"}},{"id":1566495,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2024-03-20T22:05:51.000Z","date":"2024-03-20","kind":"sale","planned":false,"acquired":false,"shares":13000,"price":109.658,"value":1425554.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Transaction executed in multiple trades at prices ranging from $109.50 to $110.17 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 17,328 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":270460,"source":{"system":"sec-edgar","filing":"0000874238-24-000050","document":"wk-form4_1710972336.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423824000050/wk-form4_1710972336.xml","form_type":"4"}},{"id":1570867,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD 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The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Of these shares, 26,749 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":272023,"source":{"system":"sec-edgar","filing":"0000874238-23-000097","document":"wk-form4_1687464715.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423823000097/wk-form4_1687464715.xml","form_type":"4"}},{"id":1981542,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD 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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 as permitted by the Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 49,836 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":152944,"source":{"system":"sec-edgar","filing":"0000874238-20-000024","document":"wf-form4_158153050164275.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000024/wf-form4_158153050164275.xml","form_type":"4"}},{"id":3316942,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2020-01-07T21:07:14.000Z","date":"2020-01-01","kind":"grant","acquired":true,"shares":20680,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Form 4 originally filed incorrectly reported a grant of 32,369 shares. The Reporting Person was granted 20,680 shares."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The original Form 4 is amended by this Form 4/A and correctly reflects the Reporting Person's ownership. Of these shares, 55,143 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":155032,"source":{"system":"sec-edgar","filing":"0000874238-20-000020","document":"wf-form4a_157843121605452.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000020/wf-form4a_157843121605452.xml","form_type":"4/A","original_submission_date":"2020-01-06"}},{"id":3320008,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2020-01-06T18:32:34.000Z","date":"2020-01-01","kind":"grant","acquired":true,"shares":32369,"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 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, 66,832 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":166721,"source":{"system":"sec-edgar","filing":"0000874238-20-000016","document":"wf-form4_157833553698229.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000016/wf-form4_157833553698229.xml","form_type":"4"}},{"id":3324947,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2020-01-03T17:30:18.000Z","date":"2019-12-31","kind":"tax_withholding","acquired":false,"shares":8881,"price":14.08,"value":125044.48,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","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":"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":"The total share ownership includes 1,876 shares acquired by the Reporting Person under the Company's 2019 Employee Stock Purchase Plan. Of the total share ownership, 34,463 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":134352,"source":{"system":"sec-edgar","filing":"0000874238-20-000006","document":"wf-form4_157807259877919.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423820000006/wf-form4_157807259877919.xml","form_type":"4"}},{"id":3349716,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common STock","published_at":"2019-12-06T15:25:05.000Z","date":"2019-12-05","kind":"disposition_to_issuer","acquired":false,"shares":31197,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Pursuant to that certain Agreement and Plan of Merger, dated as of September 15, 2019, by and among SemGroup Corporation (\"SemGroup\"),  Energy Transfer LP\n(\"Energy Transfer\"), and Nautilus Merger Sub LLC (\"Merger Sub\"), on December 5,\n2019, Merger Sub merged with and into SemGroup (the \"Merger\"), with SemGroup\nsurviving the Merger as a direct wholly owned subsidiary of Energy Transfer. Each outstanding share of SemGroup's Class A Common Stock, par value $0.01 per share(the \"SemGroup Common Stock\") held by the Reporting Person immediately prior to the effective time of the Merger automatically converted into 0.7275 shares of common units representing limited partner interests in Energy Transfer (the \"Exchange\")."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to that certain Agreement and Plan of Merger, dated as of September 15, 2019, by and among SemGroup Corporation (\"SemGroup\"),  Energy Transfer LP\n(\"Energy Transfer\"), and Nautilus Merger Sub LLC (\"Merger Sub\"), on December 5,\n2019, Merger Sub merged with and into SemGroup (the \"Merger\"), with SemGroup\nsurviving the Merger as a direct wholly owned subsidiary of Energy Transfer. Each outstanding share of SemGroup's Class A Common Stock, par value $0.01 per share(the \"SemGroup Common Stock\") held by the Reporting Person immediately prior to the effective time of the Merger automatically converted into 0.7275 shares of common units representing limited partner interests in Energy Transfer (the \"Exchange\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"As a result of the Exchange, the Reporting Person no longer owns, directly or indirectly, any shares of SemGroup Common Stock."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-19-059451","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919119059451/doc4.xml","form_type":"4"}},{"id":3349715,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-12-06T15:25:05.000Z","date":"2019-12-05","kind":"disposition_to_issuer","acquired":false,"shares":12008,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"GRAT"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Pursuant to that certain Agreement and Plan of Merger, dated as of September 15, 2019, by and among SemGroup Corporation (\"SemGroup\"),  Energy Transfer LP\n(\"Energy Transfer\"), and Nautilus Merger Sub LLC (\"Merger Sub\"), on December 5,\n2019, Merger Sub merged with and into SemGroup (the \"Merger\"), with SemGroup\nsurviving the Merger as a direct wholly owned subsidiary of Energy Transfer. Each outstanding share of SemGroup's Class A Common Stock, par value $0.01 per share(the \"SemGroup Common Stock\") held by the Reporting Person immediately prior to the effective time of the Merger automatically converted into 0.7275 shares of common units representing limited partner interests in Energy Transfer (the \"Exchange\")."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to that certain Agreement and Plan of Merger, dated as of September 15, 2019, by and among SemGroup Corporation (\"SemGroup\"),  Energy Transfer LP\n(\"Energy Transfer\"), and Nautilus Merger Sub LLC (\"Merger Sub\"), on December 5,\n2019, Merger Sub merged with and into SemGroup (the \"Merger\"), with SemGroup\nsurviving the Merger as a direct wholly owned subsidiary of Energy Transfer. Each outstanding share of SemGroup's Class A Common Stock, par value $0.01 per share(the \"SemGroup Common Stock\") held by the Reporting Person immediately prior to the effective time of the Merger automatically converted into 0.7275 shares of common units representing limited partner interests in Energy Transfer (the \"Exchange\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"As a result of the Exchange, the Reporting Person no longer owns, directly or indirectly, any shares of SemGroup Common Stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares indirectly owned by the RAB GRAT 2016-1 grantor annuity trust (\"GRAT\"). The reporting person is the sole trustee and sole annuitant of the GRAT"}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-19-059451","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919119059451/doc4.xml","form_type":"4"}},{"id":3502276,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-06-04T16:41:10.000Z","date":"2019-06-01","kind":"grant","acquired":true,"shares":10270,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":31197,"source":{"system":"sec-edgar","filing":"0001209191-19-034316","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919119034316/doc4.xml","form_type":"4"}},{"id":3606992,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-03-07T17:55:02.000Z","date":"2019-03-05","kind":"tax_withholding","acquired":false,"shares":3910,"price":14.47,"value":56577.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","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":"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, 55,905 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":141357,"source":{"system":"sec-edgar","filing":"0000874238-19-000053","document":"wf-form4_155198128792492.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000053/wf-form4_155198128792492.xml","form_type":"4"}},{"id":3606991,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-03-07T17:55:02.000Z","date":"2019-03-05","kind":"grant","acquired":true,"shares":9937,"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."}],"balance_after":145267,"source":{"system":"sec-edgar","filing":"0000874238-19-000053","document":"wf-form4_155198128792492.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000053/wf-form4_155198128792492.xml","form_type":"4"}},{"id":3664288,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-02-12T16:00:02.000Z","date":"2019-02-10","kind":"tax_withholding","acquired":false,"shares":2051,"price":13.09,"value":26847.59,"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 February 10, 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":"price","element":"transactionPricePerShare","label":"F1","text":"These shares were part of a restricted stock award, a portion of which was released on February 10, 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, 59,161 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":135330,"source":{"system":"sec-edgar","filing":"0000874238-19-000039","document":"wf-form4_154998718691477.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000039/wf-form4_154998718691477.xml","form_type":"4"}},{"id":3692203,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-01-18T19:09:31.000Z","date":"2019-01-16","kind":"grant","acquired":true,"shares":23140,"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, 61,212 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":137381,"source":{"system":"sec-edgar","filing":"0000874238-19-000034","document":"wf-form4_154783855481511.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000034/wf-form4_154783855481511.xml","form_type":"4"}},{"id":3711001,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-01-03T21:13:38.000Z","date":"2019-01-01","kind":"tax_withholding","acquired":false,"shares":3732,"price":10.89,"value":40641.48,"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, 38,072 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":114241,"source":{"system":"sec-edgar","filing":"0000874238-19-000022","document":"wf-form4_154654999587532.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000022/wf-form4_154654999587532.xml","form_type":"4"}},{"id":3715120,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2019-01-02T19:29:26.000Z","date":"2018-12-31","kind":"tax_withholding","acquired":false,"shares":2114,"price":10.89,"value":23021.46,"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, 46,429 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":117973,"source":{"system":"sec-edgar","filing":"0000874238-19-000014","document":"wf-form4_154645734869215.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423819000014/wf-form4_154645734869215.xml","form_type":"4"}},{"id":3905294,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-06-05T16:24:27.000Z","date":"2018-06-01","kind":"grant","acquired":true,"shares":5019,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"3,350 shares previously reported as indirectly owned by the RAB GRAT 2016-1 grantor annuity trust (\"GRAT\") are now being reported as directly owned.  The reporting person is the sole trustee and sole annuitant of the GRAT."}],"balance_after":20927,"source":{"system":"sec-edgar","filing":"0001209191-18-035675","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919118035675/doc4.xml","form_type":"4"}},{"id":4022113,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2018-03-02T19:47:36.000Z","date":"2018-03-01","kind":"grant","acquired":true,"shares":25072,"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, 54,737 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":120087,"source":{"system":"sec-edgar","filing":"0000874238-18-000018","document":"wf-form4_152002004302435.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000018/wf-form4_152002004302435.xml","form_type":"4"}},{"id":4067011,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2018-02-12T18:54:32.000Z","date":"2018-02-10","kind":"tax_withholding","acquired":false,"shares":2370,"price":12.57,"value":29790.9,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were part of a restricted stock award, made pursuant to the Company's Stock Incentive Plan, a portion of which was released on February 10, 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 as permitted by the Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 29,665 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":95015,"source":{"system":"sec-edgar","filing":"0000874238-18-000011","document":"wf-form4_151846165764501.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000011/wf-form4_151846165764501.xml","form_type":"4"}},{"id":4091545,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2018-01-24T16:20:52.000Z","date":"2018-01-17","kind":"grant","acquired":true,"shares":16114,"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, 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 17, 2019 and the next two anniversaries thereof, provided the service conditions are satisfied."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of these shares, 32,035 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":97385,"source":{"system":"sec-edgar","filing":"0000874238-18-000004","document":"wf-form4_151681083717370.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423818000004/wf-form4_151681083717370.xml","form_type":"4"}},{"id":4166528,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2017-11-13T14:19:14.000Z","date":"2017-11-09","kind":"tax_withholding","acquired":false,"shares":20975,"price":17.1,"value":358672.5,"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 November 9, 2017. 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 a restricted stock award, a portion of which was released on November 9, 2017. 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, 15,921 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":81271,"source":{"system":"sec-edgar","filing":"0000874238-17-000017","document":"wf-form4_151058274042212.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000087423817000017/wf-form4_151058274042212.xml","form_type":"4"}},{"id":4292923,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-06-05T16:03:00.000Z","date":"2017-06-01","kind":"grant","acquired":true,"shares":3646,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":12558,"source":{"system":"sec-edgar","filing":"0001209191-17-037658","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919117037658/doc4.xml","form_type":"4"}},{"id":4451414,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2017-02-14T17:57:16.000Z","date":"2017-02-10","kind":"grant","acquired":true,"shares":15921,"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 as incentive compensation pursuant to the Reporting Person's participation in the Company's 2016 Executive Incentive Compensation Plan.  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 as incentive compensation pursuant to the Reporting Person's participation in the Company's 2016 Executive Incentive Compensation Plan.  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, 65,921 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":102246,"source":{"system":"sec-edgar","filing":"0001140361-17-006898","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000114036117006898/doc1.xml","form_type":"4"}},{"id":4553715,"issuer":{"id":3384,"kind":"organization","name":"STERLING INFRASTRUCTURE, INC.","symbol":"STRL"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Common Stock","published_at":"2016-11-16T17:15:01.000Z","date":"2015-11-09","kind":"tax_withholding","acquired":false,"shares":13675,"price":7.11,"value":97229.25,"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 from restrictions on November 9, 2016.  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 a restricted stock award, a portion of which was released from restrictions on November 9, 2016.  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,50,000 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."}],"balance_after":86325,"source":{"system":"sec-edgar","filing":"0001140361-16-086917","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874238/000114036116086917/doc1.xml","form_type":"4"}},{"id":4591702,"issuer":{"id":153255,"kind":"organization","name":"SemGroup Corp","symbol":"SEMG"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2016-09-30T16:08:03.000Z","date":"2016-09-30","kind":"grant","acquired":true,"shares":3937,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On September 30, 2016, pursuant to an Agreement and Plan of Merger entered into by Rose Rock Midstream, L.P. (\"RRMS\"), Rose Rock Midstream GP, LLC, SemGroup Corporation (\"SemGroup\"), and PBMS, LLC, each outstanding common unit representing limited partner interests in RRMS (each a \"Common Unit\") held by the Reporting Person  converted into 0.8136 shares of validly issued, fully paid and non-assessable SemGroup Class A common stock, par value $0.01 per share (the \"Merger Exchange\").  As a result of the Merger Exchange, SemGroup issued the common stock reported on Table 1 to the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 30, 2016, pursuant to an Agreement and Plan of Merger entered into by Rose Rock Midstream, L.P. (\"RRMS\"), Rose Rock Midstream GP, LLC, SemGroup Corporation (\"SemGroup\"), and PBMS, LLC, each outstanding common unit representing limited partner interests in RRMS (each a \"Common Unit\") held by the Reporting Person  converted into 0.8136 shares of validly issued, fully paid and non-assessable SemGroup Class A common stock, par value $0.01 per share (the \"Merger Exchange\").  As a result of the Merger Exchange, SemGroup issued the common stock reported on Table 1 to the Reporting Person."}],"balance_after":8912,"source":{"system":"sec-edgar","filing":"0001209191-16-143288","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1489136/000120919116143288/doc4.xml","form_type":"4"}},{"id":4591564,"issuer":{"id":181962,"kind":"organization","name":"Rose Rock Midstream, L.P.","symbol":"RRMS"},"owners":[{"id":75811,"kind":"person","name":"BALLSCHMIEDE RONALD A","position":1,"cik":"0001366918","reported_name":"BALLSCHMIEDE RONALD A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Units representing limited partner interests","published_at":"2016-09-30T16:03:16.000Z","date":"2016-09-30","kind":"disposition_to_issuer","acquired":false,"shares":4840,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On September 30, 2016, pursuant to an Agreement and Plan of Merger entered into by Rose Rock Midstream, L.P. (\"RRMS\"), Rose Rock Midstream GP, LLC, SemGroup Corporation (\"SemGroup\"), and PBMS, LLC, each outstanding common unit representing limited partner interests in RRMS (each a \"Common Unit\") held by the Reporting Person converted into 0.8136 shares of validly issued, fully paid and non-assessable SemGroup Class A common stock, par value $0.01 per share."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 30, 2016, pursuant to an Agreement and Plan of Merger entered into by Rose Rock Midstream, L.P. (\"RRMS\"), Rose Rock Midstream GP, LLC, SemGroup Corporation (\"SemGroup\"), and PBMS, LLC, each outstanding common unit representing limited partner interests in RRMS (each a \"Common Unit\") held by the Reporting Person converted into 0.8136 shares of validly issued, fully paid and non-assessable SemGroup Class A common stock, par value $0.01 per share."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Giving effect to the Common Unit Exchange the Reporting Person no longer owns, directly or indirectly, any RRMS Common Units."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-16-143275","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1366918/000120919116143275/doc4.xml","form_type":"4"}}]}