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Employee Share Purchase Plan (\"ESPP\") for the ESPP purchase period beginning on March 1, 2021 and ending on August 31, 2021 in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c). In accordance with the terms of the ESPP, these shares were purchased at a price equal to 85% of the fair market value closing price of the Issuer's ordinary shares on August 31, 2021 (the purchase date of the offering period)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes restricted shares, which vest over various time periods."}],"balance_after":218423,"source":{"system":"sec-edgar","filing":"0001104659-21-119389","document":"tm2128458-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941841/000110465921119389/tm2128458-2_4seq1.xml","form_type":"4"}},{"id":2559507,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":51147,"kind":"person","name":"Litchman Manuel MD","position":1,"cik":"0001709485","reported_name":"Litchman Manuel MD","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"COMMON STOCK","published_at":"2021-09-24T21:23:31.000Z","date":"2021-08-31","kind":"grant","acquired":true,"shares":2746,"price":2.58,"value":7084.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were acquired under the Mustang Bio, Inc. 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The Reporting Person reported on a single line all such transactions that occurred within a one-dollar price range. The range of prices for the purchase transactions on July 30, 2021, was $2.89 to $2.94. The Reporting Person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the Issuer, or a shareholder of the Issuer, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes restricted stock units, which vest over various time periods."}],"balance_after":960241,"source":{"system":"sec-edgar","filing":"0001104659-21-100783","document":"tm2124277-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921100783/tm2124277-1_4seq1.xml","form_type":"4"}},{"id":2638743,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":35267,"kind":"person","name":"ROSENWALD LINDSAY A MD","position":1,"cik":"0000941841","reported_name":"ROSENWALD LINDSAY A MD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2021-07-08T20:32:20.000Z","date":"2021-06-28","kind":"grant","acquired":true,"shares":13774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Reporting Person was granted 13,774 restricted shares pursuant to the Issuer's 2016 Incentive Plan on June 28, 2021. 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The shares will vest on June 17, 2024, subject to the Reporting Person's continued service on the Issuer's board on such date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes restricted share units, which vest over various time periods."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The shares are held by Caribe BioAdvisors, LLC, of which Mr. Weiss is the sole member."}],"balance_after":64197,"source":{"system":"sec-edgar","filing":"0001104659-21-090246","document":"tm2121675-5_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1038977/000110465921090246/tm2121675-5_4seq1.xml","form_type":"4"}},{"id":2637767,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":70729,"kind":"person","name":"Chill Adam J.","position":1,"cik":"0001626451","reported_name":"Chill Adam J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2021-07-08T16:31:08.000Z","date":"2021-06-28","kind":"grant","acquired":true,"shares":13774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Reporting Person was granted 13,774 restricted shares pursuant to the Issuer's 2016 Incentive Plan on June 28, 2021. The shares will vest on June 17, 2024, subject to the Reporting Person's continued service on the Issuer's board on such date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":107197,"source":{"system":"sec-edgar","filing":"0001104659-21-090239","document":"tm2121675-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1626451/000110465921090239/tm2121675-1_4seq1.xml","form_type":"4"}},{"id":2735459,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":51147,"kind":"person","name":"Litchman Manuel MD","position":1,"cik":"0001709485","reported_name":"Litchman Manuel MD","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"COMMON STOCK","published_at":"2021-04-29T20:31:40.000Z","date":"2020-05-22","kind":"sale","acquired":false,"shares":8348,"price":3.04,"value":25377.92,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"8,348 shares were sold in connection with the vesting of 30,500 shares on April 24, 2020, these shares were sold by the Company's restricted stock administrator in order to satisfy Mr. Litchman's tax withholding obligations. Mr. Litchman had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":813035,"source":{"system":"sec-edgar","filing":"0001104659-21-057674","document":"tm2113475d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921057674/tm2113475d1_4.xml","form_type":"4"}},{"id":2735458,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":51147,"kind":"person","name":"Litchman Manuel MD","position":1,"cik":"0001709485","reported_name":"Litchman Manuel MD","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"COMMON STOCK","published_at":"2021-04-29T20:31:40.000Z","date":"2020-05-22","kind":"sale","acquired":false,"shares":4025,"price":3.04,"value":12236.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"4,025 shares were sold in connection with the vesting of 15,250 shares on March 26, 2020, these shares were sold by the Company's restricted stock administrator in order to satisfy Mr. Litchman's tax withholding obligations. Mr. Litchman had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":821383,"source":{"system":"sec-edgar","filing":"0001104659-21-057674","document":"tm2113475d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921057674/tm2113475d1_4.xml","form_type":"4"}},{"id":2746589,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Fin. & Corp. 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Mr. Achenbach had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":131053,"source":{"system":"sec-edgar","filing":"0001104659-21-051419","document":"tm2113178-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921051419/tm2113178-1_4seq1.xml","form_type":"4"}},{"id":2746588,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Fin. & Corp. 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Mr. Achenbach had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":133476,"source":{"system":"sec-edgar","filing":"0001104659-21-051419","document":"tm2113178-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921051419/tm2113178-1_4seq1.xml","form_type":"4"}},{"id":2746587,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Fin. & Corp. 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Mr. Achenbach had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":138661,"source":{"system":"sec-edgar","filing":"0001104659-21-051419","document":"tm2113178-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921051419/tm2113178-1_4seq1.xml","form_type":"4"}},{"id":2746586,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Fin. & Corp. 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Mr. Achenbach had no discretion with respect to such sale, which was transacted automatically in accordance with the Company's corporate policies regarding the vesting of restricted stock."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Represents the weighted average sales price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F8","text":"Includes restricted share units, which vest over various time periods."}],"balance_after":141717,"source":{"system":"sec-edgar","filing":"0001104659-21-051419","document":"tm2113178-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000110465921051419/tm2113178-1_4seq1.xml","form_type":"4"}},{"id":2746585,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Fin. & Corp. 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The reporting person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price."}],"balance_after":7500,"source":{"system":"sec-edgar","filing":"0001144204-18-065170","document":"tv509180_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418065170/tv509180_form4.xml","form_type":"4"}},{"id":3726120,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":51147,"kind":"person","name":"Litchman Manuel MD","position":1,"cik":"0001709485","reported_name":"Litchman Manuel MD","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2018-12-18T21:59:49.000Z","date":"2018-11-20","kind":"purchase","acquired":true,"shares":2500,"price":3.8881,"value":9720.25,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Reflects the weighted average purchase price of multiple same-way open market purchase transactions effected by the Reporting Person on the same day at different prices through a purchase order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The range of prices for the purchase transactions on November 20, 2018 was $3.8751 to $3.8951, the range of prices for the purchase transactions on November 21, 2018 was $4.1992 to $4.219, the range of prices for the purchase transactions on November 26, 2018 was $3.8696 to $3.8708 and the range of prices for the purchase transactions on December 10, 2018 was $ 3.34 to $ 3.3532. The reporting person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price."}],"balance_after":2500,"source":{"system":"sec-edgar","filing":"0001144204-18-065170","document":"tv509180_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418065170/tv509180_form4.xml","form_type":"4"}},{"id":3739312,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":32768,"kind":"person","name":"Herskowitz Neil","position":1,"cik":"0001298246","reported_name":"Herskowitz Neil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-12-07T21:44:10.000Z","date":"2018-11-23","kind":"purchase","acquired":true,"shares":1000,"price":3.96,"value":3960.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"70,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":71000,"source":{"system":"sec-edgar","filing":"0001144204-18-063619","document":"tv507723_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1298246/000114420418063619/tv507723_form4.xml","form_type":"4"}},{"id":3739311,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":32768,"kind":"person","name":"Herskowitz Neil","position":1,"cik":"0001298246","reported_name":"Herskowitz Neil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-12-07T21:44:10.000Z","date":"2018-06-14","kind":"grant","acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"70,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":70000,"source":{"system":"sec-edgar","filing":"0001144204-18-063619","document":"tv507723_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1298246/000114420418063619/tv507723_form4.xml","form_type":"4"}},{"id":3745496,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Fin. & Corp. Controller"}}],"security":"COMMON STOCK","published_at":"2018-12-03T17:47:36.000Z","date":"2018-11-20","kind":"purchase","acquired":true,"shares":500,"price":3.8742,"value":1937.1,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"55,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":57500,"source":{"system":"sec-edgar","filing":"0001144204-18-062799","document":"tv508274_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418062799/tv508274_form4.xml","form_type":"4"}},{"id":3745495,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Fin. & Corp. Controller"}}],"security":"COMMON STOCK","published_at":"2018-12-03T17:47:36.000Z","date":"2018-11-19","kind":"purchase","acquired":true,"shares":1000,"price":4.25,"value":4250.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Reflects the weighted average purchase price of multiple same-way open market purchase transactions effected by the Reporting Person on the same day at different prices through a purchase order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The range of prices for the purchase transactions on November 16, 2018 was $4.15 to $4.3792, and the range of prices for the purchase transactions on November 19, 2018 was $4.15 to $4.35. The reporting person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"55,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":57000,"source":{"system":"sec-edgar","filing":"0001144204-18-062799","document":"tv508274_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418062799/tv508274_form4.xml","form_type":"4"}},{"id":3745494,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Fin. & Corp. Controller"}}],"security":"COMMON STOCK","published_at":"2018-12-03T17:47:36.000Z","date":"2018-11-16","kind":"purchase","acquired":true,"shares":1000,"price":4.31,"value":4310.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Reflects the weighted average purchase price of multiple same-way open market purchase transactions effected by the Reporting Person on the same day at different prices through a purchase order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The range of prices for the purchase transactions on November 16, 2018 was $4.15 to $4.3792, and the range of prices for the purchase transactions on November 19, 2018 was $4.15 to $4.35. The reporting person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"55,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":56000,"source":{"system":"sec-edgar","filing":"0001144204-18-062799","document":"tv508274_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418062799/tv508274_form4.xml","form_type":"4"}},{"id":3745493,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":132274,"kind":"person","name":"Achenbach Brian","position":1,"cik":"0001760132","reported_name":"Achenbach Brian","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Fin. & Corp. Controller"}}],"security":"COMMON STOCK","published_at":"2018-12-03T17:47:36.000Z","date":"2018-02-02","kind":"grant","acquired":true,"shares":55000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"55,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":55000,"source":{"system":"sec-edgar","filing":"0001144204-18-062799","document":"tv508274_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1680048/000114420418062799/tv508274_form4.xml","form_type":"4"}},{"id":3766234,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":70729,"kind":"person","name":"Chill Adam J.","position":1,"cik":"0001626451","reported_name":"Chill Adam J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-11-13T06:37:10.000Z","date":"2018-11-12","kind":"grant","acquired":true,"shares":1000,"price":4.85,"value":4850.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"60,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":63000,"source":{"system":"sec-edgar","filing":"0001144204-18-058924","document":"tv507044_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1626451/000114420418058924/tv507044_form4.xml","form_type":"4"}},{"id":3766233,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":70729,"kind":"person","name":"Chill Adam J.","position":1,"cik":"0001626451","reported_name":"Chill Adam J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-11-13T06:37:10.000Z","date":"2018-11-08","kind":"grant","acquired":true,"shares":2000,"price":5.34,"value":10680.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"60,000 shares are restricted Common Stock which vest over various time periods."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Reflects the weighted average purchase price of multiple same-way open market purchase transactions effected by the Reporting Person on the same day at different prices through a purchase order executed by a broker-dealer. The reporting person reported on a single line all such transactions that occurred within a one dollar price range. The range of prices for the purchase transactions on November 8, 2018, was $4.90 to $6.06. The reporting person hereby undertakes to provide upon request by the Securities Exchange Commission staff, the issuer, or a shareholder of the issuer, full information regarding the number of shares purchased at each separate price."}],"balance_after":62000,"source":{"system":"sec-edgar","filing":"0001144204-18-058924","document":"tv507044_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1626451/000114420418058924/tv507044_form4.xml","form_type":"4"}},{"id":3766232,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":70729,"kind":"person","name":"Chill Adam J.","position":1,"cik":"0001626451","reported_name":"Chill Adam J.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-11-13T06:37:10.000Z","date":"2018-06-14","kind":"grant","acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"60,000 shares are restricted Common Stock which vest over various time periods."}],"balance_after":60000,"source":{"system":"sec-edgar","filing":"0001144204-18-058924","document":"tv507044_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1626451/000114420418058924/tv507044_form4.xml","form_type":"4"}},{"id":3774797,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":35267,"kind":"person","name":"ROSENWALD LINDSAY A MD","position":1,"cik":"0000941841","reported_name":"ROSENWALD LINDSAY A MD","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2018-11-06T01:06:21.000Z","date":"2018-11-02","kind":"purchase","acquired":true,"shares":50000,"price":4.41,"value":220500.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 20,000 restricted stock units which vest over time."}],"balance_after":70000,"source":{"system":"sec-edgar","filing":"0001144204-18-057391","document":"tv506421_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/941841/000114420418057391/tv506421_form4.xml","form_type":"4"}},{"id":4289727,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc.","position":1,"cik":"0001429260","reported_name":"Fortress Biotech, Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value","published_at":"2017-06-07T21:43:24.000Z","date":"2017-03-31","kind":"grant","acquired":true,"shares":1600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The Issuer is required to grant to the Reporting Person an equity fee in shares of the Issuer's Common Stock equal to 2.5% of the gross amount of any debt or equity financing consummated by the Issuer. These shares were granted by the Issuer to the Reporting Person following the closing of an equity financing."}],"balance_after":10132653,"source":{"system":"sec-edgar","filing":"0001144204-17-031582","document":"v467961_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1429260/000114420417031582/v467961_form4.xml","form_type":"4"}},{"id":4289726,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc.","position":1,"cik":"0001429260","reported_name":"Fortress Biotech, Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value","published_at":"2017-06-07T21:43:24.000Z","date":"2017-03-13","kind":"grant","acquired":true,"shares":767264,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The Reporting Person is entitled to an annual dividend on its outstanding Class A Preferred Stock equal to 2.5% of the Issuer's fully diluted outstanding capitalization on March 13. These shares were granted by the Issuer to the Reporting Person for the 2017 annual dividend."}],"balance_after":10131053,"source":{"system":"sec-edgar","filing":"0001144204-17-031582","document":"v467961_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1429260/000114420417031582/v467961_form4.xml","form_type":"4"}},{"id":4289725,"issuer":{"id":8350,"kind":"organization","name":"MUSTANG BIO, INC."},"owners":[{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc.","position":1,"cik":"0001429260","reported_name":"Fortress Biotech, Inc.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock, $0.0001 par value","published_at":"2017-06-07T21:43:24.000Z","date":"2017-01-31","kind":"grant","acquired":true,"shares":213419,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The Issuer is required to grant to the Reporting Person an equity fee in shares of the Issuer's Common Stock equal to 2.5% of the gross amount of any debt or equity financing consummated by the Issuer. These shares were granted by the Issuer to the Reporting Person following the closing of an equity financing."}],"balance_after":9363789,"source":{"system":"sec-edgar","filing":"0001144204-17-031582","document":"v467961_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1429260/000114420417031582/v467961_form4.xml","form_type":"4"}}],"next_cursor":"2017-06-07T21:43:24.000000Z,4289725"}