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The Reporting Person elected to defer 100% of these restricted shares pursuant to the Issuer's Deferred Compensation Plan for Directors and instead received deferred share units that are subject to the same vesting conditions.  Vested deferred shares will be delivered to the Reporting Person in January of the year following the Reporting Person's termination of service, or earlier upon their death or change in control of the Issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Total holdings include 102,668 shares underlying deferred restricted stock units."}],"balance_after":130105,"source":{"system":"sec-edgar","filing":"0001647971-26-000002","document":"form4-01052026_040119.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000164797126000002/form4-01052026_040119.xml","form_type":"4"}},{"id":1314723,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"common stock, par value $0.001","published_at":"2025-01-03T16:20:17.000Z","date":"2025-01-01","kind":"grant","planned":false,"acquired":true,"shares":49383,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Reporting Person was granted 49,383 shares of restricted stock pursuant to the Issuer's 2013 Stock Incentive Plan, as amended. One-third of the shares will vest on each of January 1, 2026, 2027, and 2028, subject to continued service.  The reporting person elected to defer 50% of these restricted shares pursuant to the Issuer's Deferred Compensation Plan for Directors and instead received deferred share units that are subject to the same vesting conditions.  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Vested deferred shares will be delivered to the Reporting Person in January of the year following the Reporting Person's termination of service, or earlier upon their death or change in control of the Issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Total holdings include 50,655 shares underlying deferred restricted stock and restricted stock units."}],"balance_after":63400,"source":{"system":"sec-edgar","filing":"0001104659-24-000908","document":"tm241755-6_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000110465924000908/tm241755-6_4seq1.xml","form_type":"4"}},{"id":2067620,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK, PAR VALUE $0.001","published_at":"2023-01-04T21:24:46.000Z","date":"2023-01-01","kind":"grant","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"One-third of the shares will vest on each of January1, 2024, 2025 and 2026, subject to continued service. 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The reporting person elected to defer 80,000 of these restricted shares pursuant to the issuer's Deferred Compensation Plan for Directors and instead received deferred share units that are subject to the same vesting conditions. 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Vested deferred shares will be delivered to the reporting person in January of the year following the reporting person's termination of service, or earlier upon his death or change in control of the issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total holdings include 480,000 shares of deferred restricted stock and 40,000 shares underlying deferred restricted stock units."}],"balance_after":655000,"source":{"system":"sec-edgar","filing":"0001104659-21-048826","document":"tm219139d3_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000110465921048826/tm219139d3_4.xml","form_type":"4"}},{"id":3211099,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.001","published_at":"2020-03-13T16:07:02.000Z","date":"2020-01-01","kind":"grant","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"One-third of the shares will vest on each January 1, 2021, 2022 and 2023, subject to continued service. The reporting person elected to defer 80,000 of these restricted shares pursuant to the issuer's Deferred Compensation Plan for Directors and instead received deferred share units that are subject to the same vesting conditions. Vested deferred shares will be delivered to the reporting person in January of the year following the reporting person's termination of service, or earlier upon his death or change in control of the issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total holdings include 53,332 shares underlying deferred restricted stock units that were previously reported in Table II."}],"balance_after":555000,"source":{"system":"sec-edgar","filing":"0001104659-20-033110","document":"tm2011481-3_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000110465920033110/tm2011481-3_form4.xml","form_type":"4"}},{"id":3556658,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-04-12T16:10:49.000Z","date":"2019-01-01","kind":"grant","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"One-third of the shares will vest on each January 1, 2020, 2021 and 2022, subject to continued service. 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The Reporting Person deferred the receipt of 80% of the vested shares on July 14, 2017 and instead received 13,333 shares of deferred restricted stock units pursuant to the Issuer's Deferred Compensation Plan for Directors (the \"Plan\").  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As a result, the Reporting Person is reporting the disposition of 26,666 shares of Issuer common stock in exchange for an equal number of deferred restricted stock units."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each deferred restricted stock unit will be settled in one share of the Issuer's common stock at the time and in the matter set forth in the Plan."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each deferred restricted stock unit will be settled in one share of the Issuer's common stock at the time and in the matter set forth in the Plan."}],"balance_after":39999,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":26666},"source":{"system":"sec-edgar","filing":"0001638599-17-000107","document":"doc4_4412.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000163859917000107/doc4_4412.xml","form_type":"4"}},{"id":4482996,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.001","published_at":"2017-01-24T18:58:59.000Z","date":"2017-01-01","kind":"disposition_to_issuer","acquired":false,"shares":26666,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Reporting Person was granted 100,000 shares of restricted common stock of the Issuer on January 1, 2016 for his service on the Issuer's Board of Directors.  The shares vest one-third annually beginning on January 1, 2017.  The Reporting Person deferred the receipt of 80% of the vested shares and, on January 1, 2017, received instead 26,666 shares of deferred restricted stock units pursuant to the Issuer's Deferred Compensation Plan for Directors (the \"Plan\").  As a result, the Reporting Person is reporting the disposition of 26,666 shares of Issuer common stock in exchange for an equal number of deferred restricted stock units."}],"balance_after":215001,"source":{"system":"sec-edgar","filing":"0001638599-17-000107","document":"doc4_4412.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000163859917000107/doc4_4412.xml","form_type":"4"}},{"id":4482995,"issuer":{"id":6822,"kind":"organization","name":"Fortress Biotech, Inc."},"owners":[{"id":70314,"kind":"person","name":"Klein Dov","position":1,"cik":"0001647971","reported_name":"Klein Dov","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock, par value $0.001","published_at":"2017-01-24T18:58:59.000Z","date":"2017-01-01","kind":"grant","acquired":true,"shares":100000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"One-third of the shares will vest on each of January 1, 2018, 2019 and 2020, and subject to continued service on the board of directors."}],"balance_after":241667,"source":{"system":"sec-edgar","filing":"0001638599-17-000107","document":"doc4_4412.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1647971/000163859917000107/doc4_4412.xml","form_type":"4"}}]}