{"transactions":[{"id":2879717,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2021-02-04T21:29:37.000Z","date":"2021-02-03","kind":"tax_withholding","acquired":false,"shares":4002,"price":19.215,"value":76898.43,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."}],"balance_after":242447,"source":{"system":"sec-edgar","filing":"0001209191-21-007733","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919121007733/doc4.xml","form_type":"4"}},{"id":2883247,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2021-02-03T19:26:16.000Z","date":"2021-02-01","kind":"grant","acquired":true,"shares":30737,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on February 1, 2022 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":246449,"source":{"system":"sec-edgar","filing":"0001209191-21-007129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919121007129/doc4.xml","form_type":"4"}},{"id":2883246,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2021-02-03T19:26:16.000Z","date":"2021-02-01","kind":"grant","acquired":true,"shares":13767,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2021 based upon assessed achievement of the Company's performance metrics and continued service to the Company through the vesting date. Each PRSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":215712,"source":{"system":"sec-edgar","filing":"0001209191-21-007129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919121007129/doc4.xml","form_type":"4"}},{"id":2883245,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2021-02-03T19:26:16.000Z","date":"2021-02-01","kind":"tax_withholding","acquired":false,"shares":14154,"price":19.52,"value":276286.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes an exempt transaction of 1,794 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan."}],"balance_after":201945,"source":{"system":"sec-edgar","filing":"0001209191-21-007129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919121007129/doc4.xml","form_type":"4"}},{"id":3289564,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2020-02-05T21:26:02.000Z","date":"2020-02-03","kind":"grant","acquired":true,"shares":46153,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on February 3, 2021 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":214305,"source":{"system":"sec-edgar","filing":"0001209191-20-006897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919120006897/doc4.xml","form_type":"4"}},{"id":3289563,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2020-02-05T21:26:02.000Z","date":"2020-02-03","kind":"tax_withholding","acquired":false,"shares":16688,"price":16.1,"value":268676.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."}],"balance_after":168152,"source":{"system":"sec-edgar","filing":"0001209191-20-006897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919120006897/doc4.xml","form_type":"4"}},{"id":3382536,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2019-11-05T00:00:11.000Z","date":"2019-11-01","kind":"tax_withholding","acquired":false,"shares":6916,"price":13.935,"value":96374.46,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes an exempt transaction of 2,674 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan on May 1, 2019."}],"balance_after":184840,"source":{"system":"sec-edgar","filing":"0001209191-19-055037","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919119055037/doc4.xml","form_type":"4"}},{"id":3675501,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2019-02-05T21:15:57.000Z","date":"2019-02-01","kind":"grant","acquired":true,"shares":62500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on February 1, 2020 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":189082,"source":{"system":"sec-edgar","filing":"0000899243-19-002618","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924319002618/doc4.xml","form_type":"4"}},{"id":3675500,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2019-02-05T21:15:57.000Z","date":"2019-02-01","kind":"tax_withholding","acquired":false,"shares":4302,"price":9.38,"value":40352.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."}],"balance_after":126582,"source":{"system":"sec-edgar","filing":"0000899243-19-002618","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924319002618/doc4.xml","form_type":"4"}},{"id":3777107,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2018-11-02T22:09:29.000Z","date":"2018-11-01","kind":"tax_withholding","acquired":false,"shares":6916,"price":9.35,"value":64664.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."}],"balance_after":130884,"source":{"system":"sec-edgar","filing":"0000899243-18-028054","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924318028054/doc4.xml","form_type":"4"}},{"id":4077340,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Employee stock option (right to buy)","published_at":"2018-02-06T00:37:48.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":44323,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"One-tenth of the shares subject to the option vest on August 1, 2018 and the remaining shares vest in equal monthly installments until fully vested on February 1, 2022."}],"balance_after":44323,"derivative":{"exercise_price":12.84,"expiration_date":"2028-02-01","underlying":"Common Stock","underlying_shares":44323},"source":{"system":"sec-edgar","filing":"0000899243-18-002958","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924318002958/doc4.xml","form_type":"4"}},{"id":4077339,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2018-02-06T00:37:48.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":20979,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2020 based upon assessed achievement of the Company's targeted pro forma operating margin for fiscal year 2016 and continued service to the Company through the vesting date. Each PRSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":137800,"source":{"system":"sec-edgar","filing":"0000899243-18-002958","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924318002958/doc4.xml","form_type":"4"}},{"id":4077338,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2018-02-06T00:37:48.000Z","date":"2018-02-01","kind":"grant","acquired":true,"shares":23535,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on February 1, 2019 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":116821,"source":{"system":"sec-edgar","filing":"0000899243-18-002958","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924318002958/doc4.xml","form_type":"4"}},{"id":4077337,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2018-02-06T00:37:48.000Z","date":"2018-02-01","kind":"tax_withholding","acquired":false,"shares":1906,"price":12.84,"value":24473.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs."}],"balance_after":93286,"source":{"system":"sec-edgar","filing":"0000899243-18-002958","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000089924318002958/doc4.xml","form_type":"4"}},{"id":4175421,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2017-11-03T00:10:20.000Z","date":"2017-11-01","kind":"other","acquired":true,"shares":1664,"price":10.6675,"value":17750.72,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Voluntarily reporting an exempt acquisition of 1,664 shares of Rambus common stock acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan on November 1,2017."}],"balance_after":95192,"source":{"system":"sec-edgar","filing":"0001209191-17-059011","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919117059011/doc4.xml","form_type":"4"}},{"id":4175420,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2017-11-03T00:10:20.000Z","date":"2017-11-01","kind":"tax_withholding","acquired":false,"shares":7516,"price":14.66,"value":110184.56,"ownership":{"direct":true},"balance_after":93528,"source":{"system":"sec-edgar","filing":"0001209191-17-059011","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919117059011/doc4.xml","form_type":"4"}},{"id":4335984,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2017-05-03T23:17:57.000Z","date":"2017-05-01","kind":"other","acquired":true,"shares":2396,"price":10.3275,"value":24744.69,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Voluntarily reporting an exempt acquisition of 2,396 shares of Rambus common stock acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan on May 1,2017."}],"balance_after":101044,"source":{"system":"sec-edgar","filing":"0001209191-17-029824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919117029824/doc4.xml","form_type":"4"}},{"id":4469649,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Stock Option (right to buy)","published_at":"2017-02-03T22:04:01.000Z","date":"2017-02-01","kind":"grant","acquired":true,"shares":29213,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One tenth of the shares subject to the option vest on August 1, 2017 and the remaining shares vest in equal monthly installments until they are fully vested on February 1, 2021."}],"balance_after":29213,"derivative":{"exercise_price":12.8,"exercise_date":"2017-08-01","expiration_date":"2027-02-01","underlying":"Common Stock","underlying_shares":29213},"source":{"system":"sec-edgar","filing":"0001209191-17-007702","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919117007702/doc4.xml","form_type":"4"}},{"id":4469648,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2017-02-03T22:04:01.000Z","date":"2017-02-01","kind":"grant","acquired":true,"shares":18648,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares are represented by restricted stock units.  Each restricted stock unit represents a contingent right to receive one share of RMBS common stock. The restricted stock units vest in four equal annual installments beginning on February 1, 2018 or the first business trading day thereafter."}],"balance_after":98648,"source":{"system":"sec-edgar","filing":"0001209191-17-007702","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919117007702/doc4.xml","form_type":"4"}},{"id":4569868,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Stock Option (right to buy)","published_at":"2016-11-02T23:02:21.000Z","date":"2016-11-01","kind":"grant","acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"One tenth of the shares subject to the option vest on May 1, 2017 and the remaining shares vest in equal monthly installments until they are fully vested on November 1, 2020."}],"balance_after":60000,"derivative":{"exercise_price":12.15,"exercise_date":"2017-05-01","expiration_date":"2026-11-01","underlying":"Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001209191-16-148038","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919116148038/doc4.xml","form_type":"4"}},{"id":4569867,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":143085,"kind":"person","name":"MATHUR RAHUL","position":1,"cik":"0001686794","reported_name":"MATHUR RAHUL","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, CFO"}}],"security":"Common Stock","published_at":"2016-11-02T23:02:21.000Z","date":"2016-11-01","kind":"grant","acquired":true,"shares":80000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares are represented by restricted stock units.  Each restricted stock unit represents a contingent right to receive one share of RMBS common stock. The restricted stock units vest in four equal annual installments beginning on November 1, 2017 or the first business trading day thereafter."}],"balance_after":80000,"source":{"system":"sec-edgar","filing":"0001209191-16-148038","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919116148038/doc4.xml","form_type":"4"}}]}