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The total number of options from other tranches with different exercise prices, vesting terms and expiration dates is 12,598 (after taking into account the options exercised as reported on this Form 4). The total number of performance share units from tranches with different performance measures, performance periods and vesting dates is 9,296."}],"balance_after":0,"derivative":{"exercise_price":7.44,"expiration_date":"2019-02-05","underlying":"Common Shares","underlying_shares":4000},"source":{"system":"sec-edgar","filing":"0001209191-18-052082","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118052082/doc4.xml","form_type":"4"}},{"id":3809138,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-09-24T22:38:09.000Z","date":"2018-09-21","kind":"tax_withholding","acquired":false,"shares":1626,"price":42.28,"value":68747.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the payment of the exercise price and withholding taxes of an employee stock option through the attestation of previously owned shares."}],"balance_after":73893,"source":{"system":"sec-edgar","filing":"0001209191-18-052082","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118052082/doc4.xml","form_type":"4"}},{"id":3809137,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow 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Shares","published_at":"2018-09-24T22:38:09.000Z","date":"2018-09-21","kind":"tax_withholding","acquired":false,"shares":2459,"price":42.28,"value":103966.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the payment of the exercise price and withholding taxes of an employee stock option through the attestation of previously owned shares."}],"balance_after":73278,"source":{"system":"sec-edgar","filing":"0001209191-18-052082","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118052082/doc4.xml","form_type":"4"}},{"id":3809135,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-09-24T22:38:09.000Z","date":"2018-09-21","kind":"exercise","acquired":true,"shares":4000,"price":7.44,"value":29760.0,"ownership":{"direct":true},"balance_after":75737,"source":{"system":"sec-edgar","filing":"0001209191-18-052082","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118052082/doc4.xml","form_type":"4"}},{"id":4034172,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-26T23:20:18.000Z","date":"2018-02-24","kind":"tax_withholding","acquired":false,"shares":979,"price":36.67,"value":35899.93,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Common Shares being withheld to pay tax liability."}],"balance_after":71737,"source":{"system":"sec-edgar","filing":"0001209191-18-013565","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118013565/doc4.xml","form_type":"4"}},{"id":4037208,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Performance Share Units","published_at":"2018-02-23T21:55:02.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":9296,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"Performance share units awarded pursuant to the Plan.  Each performance share unit represents a contingent right to receive one Common Share of the Company. With limited exceptions, the performance share units vest on 2/21/2021, if at all, at the end of the performance period (7/1/2019 to 12/31/2020), assuming that the holder remains employed at such time, based on the Company's Common Share price using the highest 40-day average stock price during the performance period as follows: 200% if the share price reaches $50; 100% if the share price reaches $46; and 50% if the share price reaches $42 (with interpolation between those prices).  If the share price does not reach $42, none of the performance share units will vest."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"To the extent unvested performance share units do not become vested units at the end of the applicable performance period as described above, such unvested performance share units will expire at the end of such performance period. Upon vesting, one Common Share will be delivered for each vested performance share unit."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Performance share units awarded pursuant to the Plan.  Each performance share unit represents a contingent right to receive one Common Share of the Company. With limited exceptions, the performance share units vest on 2/21/2021, if at all, at the end of the performance period (7/1/2019 to 12/31/2020), assuming that the holder remains employed at such time, based on the Company's Common Share price using the highest 40-day average stock price during the performance period as follows: 200% if the share price reaches $50; 100% if the share price reaches $46; and 50% if the share price reaches $42 (with interpolation between those prices).  If the share price does not reach $42, none of the performance share units will vest."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"To the extent unvested performance share units do not become vested units at the end of the applicable performance period as described above, such unvested performance share units will expire at the end of such performance period. Upon vesting, one Common Share will be delivered for each vested performance share unit."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Performance share units awarded pursuant to the Plan.  Each performance share unit represents a contingent right to receive one Common Share of the Company. With limited exceptions, the performance share units vest on 2/21/2021, if at all, at the end of the performance period (7/1/2019 to 12/31/2020), assuming that the holder remains employed at such time, based on the Company's Common Share price using the highest 40-day average stock price during the performance period as follows: 200% if the share price reaches $50; 100% if the share price reaches $46; and 50% if the share price reaches $42 (with interpolation between those prices).  If the share price does not reach $42, none of the performance share units will vest."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"To the extent unvested performance share units do not become vested units at the end of the applicable performance period as described above, such unvested performance share units will expire at the end of such performance period. Upon vesting, one Common Share will be delivered for each vested performance share unit."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Total does not include 18,839 outstanding options of various tranches."}],"balance_after":9296,"derivative":{"underlying":"Common Shares","underlying_shares":9296},"source":{"system":"sec-edgar","filing":"0001209191-18-013021","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118013021/doc4.xml","form_type":"4"}},{"id":4037207,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-23T21:55:02.000Z","date":"2018-02-22","kind":"tax_withholding","acquired":false,"shares":913,"price":37.19,"value":33954.47,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Common Shares being withheld to pay tax liability."}],"balance_after":72716,"source":{"system":"sec-edgar","filing":"0001209191-18-013021","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118013021/doc4.xml","form_type":"4"}},{"id":4037206,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-23T21:55:02.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":13186,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Restricted stock units awarded pursuant to the Plan. The restricted stock units vest as follows: 1/4 on the first anniversary date of the award, 1/4 on the second anniversary date of the award, 1/4 on the third anniversary date of the award and 1/4 on the fourth anniversary date of the award. Upon vesting, one Common Share will be delivered for each vested restricted stock unit."}],"balance_after":73629,"source":{"system":"sec-edgar","filing":"0001209191-18-013021","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118013021/doc4.xml","form_type":"4"}},{"id":4037205,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-23T21:55:02.000Z","date":"2018-02-21","kind":"grant","acquired":true,"shares":9296,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units awarded pursuant to the Assured Guaranty Ltd. 2004 Long-Term Incentive Plan (the \"Plan\"). With limited exceptions, the restricted stock units vest on 2/21/2021, assuming that the holder remains employed at such time.  Upon vesting, one Common Share will be delivered for each vested restricted stock unit."}],"balance_after":60443,"source":{"system":"sec-edgar","filing":"0001209191-18-013021","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118013021/doc4.xml","form_type":"4"}},{"id":4073894,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-06T21:36:06.000Z","date":"2018-02-05","kind":"tax_withholding","acquired":false,"shares":209,"price":35.38,"value":7394.42,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Common Shares being withheld to pay tax liability."}],"balance_after":51147,"source":{"system":"sec-edgar","filing":"0001209191-18-007857","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118007857/doc4.xml","form_type":"4"}},{"id":4073893,"issuer":{"id":4169,"kind":"organization","name":"ASSURED GUARANTY LTD"},"owners":[{"id":49964,"kind":"person","name":"Chow Ling","position":1,"cik":"0001724439","reported_name":"Chow Ling","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel and Secretary"}}],"security":"Common Shares","published_at":"2018-02-06T21:36:06.000Z","date":"2018-02-04","kind":"tax_withholding","acquired":false,"shares":863,"price":35.19,"value":30368.97,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Common Shares being withheld to pay tax liability."}],"balance_after":51356,"source":{"system":"sec-edgar","filing":"0001209191-18-007857","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1724439/000120919118007857/doc4.xml","form_type":"4"}}]}