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(the \"Company\") to satisfy certain tax withholding obligations."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On May 16, 2018, the Grant Date, 221 restricted stock units (\"RSUs\") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. 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The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. 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The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. 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The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested DSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On March 2, 2018, there were 4,374 DSUs granted as part of the 2018 Short Term Incentive Plan. The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. 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The RSUs will vest in three equal annual installments on each of March 2, 2019, March 2, 2020, and March 2, 2021."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On March 2, 2018 the reporting person received a grant of 6,075 RSUs as part of their 2018 Long Term Incentive Plan award. The RSUs will vest in three equal annual installments on each of March 2, 2019, March 2, 2020, and March 2, 2021."}],"balance_after":6075,"derivative":{"underlying":"Common Stock","underlying_shares":6075},"source":{"system":"sec-edgar","filing":"0000874501-18-000040","document":"wf-form4_152037695815412.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450118000040/wf-form4_152037695815412.xml","form_type":"4"}},{"id":4012594,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Common Stock","published_at":"2018-03-06T22:56:12.000Z","date":"2018-03-02","kind":"tax_withholding","acquired":false,"shares":722,"price":15.9,"value":11479.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the aggregate amount of DSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations."}],"balance_after":7158,"source":{"system":"sec-edgar","filing":"0000874501-18-000040","document":"wf-form4_152037695815412.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450118000040/wf-form4_152037695815412.xml","form_type":"4"}},{"id":4012593,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Common Stock","published_at":"2018-03-06T22:56:12.000Z","date":"2018-03-02","kind":"exercise","acquired":true,"shares":1390,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the aggregate amount of deferred stock units (\"DSUs\") that were converted into shares of common stock of Ambac Financial Group, Inc. 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(the \"Company\") upon the simultaneous vesting and settlement of the reporting person's 2015 Long Term Incentive Plan award, which had a three year performance period and vested on February 26, 2018."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reporting person acquired 4,271 shares of common stock of Ambac Financial Group, Inc. (the \"Company\") upon the simultaneous vesting and settlement of the reporting person's 2015 Long Term Incentive Plan award, which had a three year performance period and vested on February 26, 2018."}],"balance_after":8697,"source":{"system":"sec-edgar","filing":"0000874501-18-000033","document":"wf-form4_151985628342834.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450118000033/wf-form4_151985628342834.xml","form_type":"4"}},{"id":4319492,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Common Stock","published_at":"2017-05-16T21:03:29.000Z","date":"2017-05-12","kind":"tax_withholding","acquired":false,"shares":1399,"price":17.18,"value":24034.82,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"As part of this vesting and settlement, the Company withheld 1,399 shares of common stock to satisfy certain tax withholding obligations."}],"balance_after":4426,"source":{"system":"sec-edgar","filing":"0000874501-17-000070","document":"wf-form4_149496859517693.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450117000070/wf-form4_149496859517693.xml","form_type":"4"}},{"id":4319491,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Common Stock","published_at":"2017-05-16T21:03:29.000Z","date":"2017-05-12","kind":"grant","acquired":true,"shares":2979,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person acquired 2,979 shares of common stock of Ambac Financial Group, Inc. (the \"Company\") upon the simultaneous vesting and settlement of the reporting person's 2014 Long Term Incentive Plan award, which had a three year performance period and vested on May 12, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reporting person acquired 2,979 shares of common stock of Ambac Financial Group, Inc. (the \"Company\") upon the simultaneous vesting and settlement of the reporting person's 2014 Long Term Incentive Plan award, which had a three year performance period and vested on May 12, 2017."}],"balance_after":5825,"source":{"system":"sec-edgar","filing":"0000874501-17-000070","document":"wf-form4_149496859517693.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450117000070/wf-form4_149496859517693.xml","form_type":"4"}},{"id":4401446,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Deferred Share Units","published_at":"2017-03-06T21:37:18.000Z","date":"2017-03-02","kind":"exercise","acquired":false,"shares":106,"price":22.35,"value":2369.1,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each DSU represents a contingent right to receive one share of the Company's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On March 2, 2017, the Grant Date, 106 deferred share units (\"DSUs\") vested, were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the \"Company\") to satisfy certain tax withholding obligations."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On March 2, 2017, the Grant Date, 106 deferred share units (\"DSUs\") vested, were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the \"Company\") to satisfy certain tax withholding obligations."}],"balance_after":2411,"derivative":{"underlying":"Common Stock","underlying_shares":106},"source":{"system":"sec-edgar","filing":"0000874501-17-000028","document":"wf-form4_148883622480814.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450117000028/wf-form4_148883622480814.xml","form_type":"4"}},{"id":4401445,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Deferred Share Units","published_at":"2017-03-06T21:37:18.000Z","date":"2017-03-02","kind":"grant","acquired":true,"shares":2517,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each DSU represents a contingent right to receive one share of the Company's common stock."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The DSUs were awarded under the Company's 2013 Incentive Compensation Plan. The number of DSUs granted was calculated based on the closing price of the Company's common stock on March 2, 2017."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2018, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested DSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2018, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested DSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations."}],"balance_after":2517,"derivative":{"underlying":"Common Stock","underlying_shares":2517},"source":{"system":"sec-edgar","filing":"0000874501-17-000028","document":"wf-form4_148883622480814.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/874501/000087450117000028/wf-form4_148883622480814.xml","form_type":"4"}},{"id":4401444,"issuer":{"id":6308,"kind":"organization","name":"OCTAVE SPECIALTY GROUP INC","symbol":"OSG"},"owners":[{"id":141649,"kind":"person","name":"REILLY MICHAEL FRANCIS","position":1,"cik":"0001562285","reported_name":"REILLY MICHAEL FRANCIS","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Managing Director"}}],"security":"Common Stock","published_at":"2017-03-06T21:37:18.000Z","date":"2017-03-02","kind":"tax_withholding","acquired":false,"shares":106,"price":22.35,"value":2369.1,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"On March 2, 2017, the Grant Date, 106 deferred share units (\"DSUs\") vested, were converted into shares of common stock and withheld by Ambac Financial Group, Inc. 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