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The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":345767,"source":{"system":"sec-edgar","filing":"0001193125-26-142587","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526142587/ownership.xml","form_type":"4"}},{"id":817638,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-04-04T00:15:48.000Z","date":"2026-04-02","kind":"sale","planned":true,"acquired":false,"shares":2750,"price":87.1145,"value":239564.875,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025"},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $86.81 to $87.80, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":345932,"source":{"system":"sec-edgar","filing":"0001193125-26-142587","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526142587/ownership.xml","form_type":"4"}},{"id":817637,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-04-04T00:15:48.000Z","date":"2026-04-02","kind":"sale","planned":true,"acquired":false,"shares":2511,"price":86.0396,"value":216045.4356,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025"},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.70 to $86.48, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":348682,"source":{"system":"sec-edgar","filing":"0001193125-26-142587","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526142587/ownership.xml","form_type":"4"}},{"id":817636,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-04-04T00:15:48.000Z","date":"2026-04-01","kind":"tax_withholding","planned":true,"acquired":false,"shares":12561,"price":89.95,"value":1129861.95,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","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":351193,"source":{"system":"sec-edgar","filing":"0001193125-26-142587","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526142587/ownership.xml","form_type":"4"}},{"id":817635,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-04-04T00:15:48.000Z","date":"2026-04-01","kind":"grant","planned":true,"acquired":true,"shares":32684,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2027 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":363754,"source":{"system":"sec-edgar","filing":"0001193125-26-142587","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526142587/ownership.xml","form_type":"4"}},{"id":870830,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":1300,"price":101.6538,"value":132149.94,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $101.28 to $102.17, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":331070,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":870829,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":6587,"price":100.1979,"value":660003.5673,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $99.875 to $100.85, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":332370,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":870828,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":9469,"price":99.1659,"value":939001.9071,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $98.69 to $99.635, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":338957,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":870827,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":13654,"price":98.2182,"value":1341071.3028,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $97.68 to $98.64, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":348426,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":870826,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":7225,"price":97.3798,"value":703569.055,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $96.64 to $97.64, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":362080,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":870825,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-03-04T02:33:39.000Z","date":"2026-03-02","kind":"sale","planned":true,"acquired":false,"shares":1679,"price":95.8312,"value":160900.5848,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  The shares were sold in multiple transactions at prices ranging from $95.59 to $96.40, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":369305,"source":{"system":"sec-edgar","filing":"0001193125-26-089599","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526089599/ownership.xml","form_type":"4"}},{"id":922894,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-04T01:20:51.000Z","date":"2026-02-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":92523,"price":113.71,"value":10520790.33,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","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":370984,"source":{"system":"sec-edgar","filing":"0001193125-26-036329","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526036329/ownership.xml","form_type":"4"}},{"id":922893,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-04T01:20:51.000Z","date":"2026-02-01","kind":"grant","planned":false,"acquired":true,"shares":143744,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2026 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes an exempt transaction of 522 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan."}],"balance_after":463507,"source":{"system":"sec-edgar","filing":"0001193125-26-036329","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000119312526036329/ownership.xml","form_type":"4"}},{"id":1166745,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-24T16:10:17.000Z","date":"2025-04-23","kind":"sale","planned":true,"acquired":false,"shares":6348,"price":46.97,"value":298165.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"All shares traded at $46.97."}],"balance_after":319241,"source":{"system":"sec-edgar","filing":"0000917273-25-000069","document":"wk-form4_1745511010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000069/wk-form4_1745511010.xml","form_type":"4"}},{"id":1166744,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-24T16:10:17.000Z","date":"2025-04-22","kind":"sale","planned":true,"acquired":false,"shares":1255,"price":45,"value":56475.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"All shares traded at $45.00."}],"balance_after":325589,"source":{"system":"sec-edgar","filing":"0000917273-25-000069","document":"wk-form4_1745511010.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000069/wk-form4_1745511010.xml","form_type":"4"}},{"id":1171285,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-16T21:58:43.000Z","date":"2025-04-15","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":47.7868,"value":477868.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.31 to $48.22, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":326844,"source":{"system":"sec-edgar","filing":"0000917273-25-000067","document":"wk-form4_1744840716.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000067/wk-form4_1744840716.xml","form_type":"4"}},{"id":1176033,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-09T01:15:38.000Z","date":"2025-04-08","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":46.81,"value":468100.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"All shares traded at $46.81"}],"balance_after":336844,"source":{"system":"sec-edgar","filing":"0000917273-25-000065","document":"wk-form4_1744161331.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000065/wk-form4_1744161331.xml","form_type":"4"}},{"id":1180904,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-03T18:50:47.000Z","date":"2025-04-01","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":50.8815,"value":508815.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.175 to $51.41, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":346844,"source":{"system":"sec-edgar","filing":"0000917273-25-000043","document":"wk-form4_1743706241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000043/wk-form4_1743706241.xml","form_type":"4"}},{"id":1180903,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-03T18:50:47.000Z","date":"2025-04-01","kind":"tax_withholding","planned":true,"acquired":false,"shares":5164,"price":52.29,"value":270025.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","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":356844,"source":{"system":"sec-edgar","filing":"0000917273-25-000043","document":"wk-form4_1743706241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000043/wk-form4_1743706241.xml","form_type":"4"}},{"id":1180902,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-04-03T18:50:47.000Z","date":"2025-04-01","kind":"grant","planned":true,"acquired":true,"shares":55077,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2026 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":362008,"source":{"system":"sec-edgar","filing":"0000917273-25-000043","document":"wk-form4_1743706241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000043/wk-form4_1743706241.xml","form_type":"4"}},{"id":1191611,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-26T20:18:15.000Z","date":"2025-03-25","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":58.6406,"value":586406.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.885 to $59.10, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":306931,"source":{"system":"sec-edgar","filing":"0000917273-25-000034","document":"wk-form4_1743020289.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000034/wk-form4_1743020289.xml","form_type":"4"}},{"id":1197625,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-03-19T21:14:17.000Z","date":"2025-03-18","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":53.7888,"value":537888.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.395 to $54.16, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":316931,"source":{"system":"sec-edgar","filing":"0000917273-25-000028","document":"wk-form4_1742418851.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000028/wk-form4_1742418851.xml","form_type":"4"}},{"id":1285962,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-02-05T00:01:01.000Z","date":"2025-02-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":127869,"price":60.35,"value":7716894.15,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","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":326931,"source":{"system":"sec-edgar","filing":"0000917273-25-000008","document":"wk-form4_1738713653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000008/wk-form4_1738713653.xml","form_type":"4"}},{"id":1285961,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-02-05T00:01:01.000Z","date":"2025-02-01","kind":"grant","planned":false,"acquired":true,"shares":191548,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2025 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes an exempt transaction of 461 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan."}],"balance_after":454800,"source":{"system":"sec-edgar","filing":"0000917273-25-000008","document":"wk-form4_1738713653.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727325000008/wk-form4_1738713653.xml","form_type":"4"}},{"id":1541549,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-17T00:40:39.000Z","date":"2024-04-16","kind":"sale","planned":true,"acquired":false,"shares":530,"price":58.66,"value":31089.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."}],"balance_after":262791,"source":{"system":"sec-edgar","filing":"0000917273-24-000079","document":"wk-form4_1713314426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000079/wk-form4_1713314426.xml","form_type":"4"}},{"id":1541548,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-17T00:40:39.000Z","date":"2024-04-16","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":58.66,"value":293300.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."}],"balance_after":263321,"source":{"system":"sec-edgar","filing":"0000917273-24-000079","document":"wk-form4_1713314426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000079/wk-form4_1713314426.xml","form_type":"4"}},{"id":1544046,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-10T14:59:26.000Z","date":"2024-04-09","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":61.3512,"value":613512.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $60.66 to $61.75, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":268321,"source":{"system":"sec-edgar","filing":"0000917273-24-000077","document":"wk-form4_1712761153.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000077/wk-form4_1712761153.xml","form_type":"4"}},{"id":1544045,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-10T14:59:26.000Z","date":"2024-04-09","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":61.3533,"value":306766.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $60.66 to $61.71, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":278321,"source":{"system":"sec-edgar","filing":"0000917273-24-000077","document":"wk-form4_1712761153.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000077/wk-form4_1712761153.xml","form_type":"4"}},{"id":1554840,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-02T22:37:19.000Z","date":"2024-04-02","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":59.9379,"value":599379.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.38 to $61.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":283321,"source":{"system":"sec-edgar","filing":"0000917273-24-000073","document":"wk-form4_1712097425.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000073/wk-form4_1712097425.xml","form_type":"4"}},{"id":1554839,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-02T22:37:19.000Z","date":"2024-04-02","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":59.9277,"value":299638.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.38 to $61.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":293321,"source":{"system":"sec-edgar","filing":"0000917273-24-000073","document":"wk-form4_1712097425.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000073/wk-form4_1712097425.xml","form_type":"4"}},{"id":1554838,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-04-02T22:37:19.000Z","date":"2024-04-01","kind":"grant","planned":true,"acquired":true,"shares":38566,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2025 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock."}],"balance_after":298321,"source":{"system":"sec-edgar","filing":"0000917273-24-000073","document":"wk-form4_1712097425.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000073/wk-form4_1712097425.xml","form_type":"4"}},{"id":1559916,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-27T18:15:35.000Z","date":"2024-03-26","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":62.691,"value":626910.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $62 to $63.12, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":259755,"source":{"system":"sec-edgar","filing":"0000917273-24-000048","document":"wk-form4_1711563325.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000048/wk-form4_1711563325.xml","form_type":"4"}},{"id":1559915,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-27T18:15:35.000Z","date":"2024-03-26","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":62.6922,"value":313461.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $61.98 to $63.12, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":269755,"source":{"system":"sec-edgar","filing":"0000917273-24-000048","document":"wk-form4_1711563325.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000048/wk-form4_1711563325.xml","form_type":"4"}},{"id":1566451,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-20T17:06:46.000Z","date":"2024-03-19","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":58.3569,"value":583569.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $57.33 to $59.46, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":274755,"source":{"system":"sec-edgar","filing":"0000917273-24-000044","document":"wk-form4_1710954398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000044/wk-form4_1710954398.xml","form_type":"4"}},{"id":1566450,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-20T17:06:46.000Z","date":"2024-03-19","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":58.3483,"value":291741.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $57.37 to $59.46, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":284755,"source":{"system":"sec-edgar","filing":"0000917273-24-000044","document":"wk-form4_1710954398.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000044/wk-form4_1710954398.xml","form_type":"4"}},{"id":1579431,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-13T17:10:20.000Z","date":"2024-03-12","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":62.6905,"value":626905.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $62.21 to $63.50, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":289755,"source":{"system":"sec-edgar","filing":"0000917273-24-000040","document":"wk-form4_1710349810.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000040/wk-form4_1710349810.xml","form_type":"4"}},{"id":1579430,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-13T17:10:20.000Z","date":"2024-03-12","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":62.6792,"value":313396.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $62.175 to $63.25, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":299755,"source":{"system":"sec-edgar","filing":"0000917273-24-000040","document":"wk-form4_1710349810.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000040/wk-form4_1710349810.xml","form_type":"4"}},{"id":1592705,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-06T18:26:59.000Z","date":"2024-03-05","kind":"sale","planned":true,"acquired":false,"shares":10000,"price":62.1741,"value":621741.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $61.44 to $62.64, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":304755,"source":{"system":"sec-edgar","filing":"0000917273-24-000034","document":"wk-form4_1709749611.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000034/wk-form4_1709749611.xml","form_type":"4"}},{"id":1592704,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-03-06T18:26:59.000Z","date":"2024-03-05","kind":"sale","planned":true,"acquired":false,"shares":5000,"price":62.169,"value":310845.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 13, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $61.60 to $62.64, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":314755,"source":{"system":"sec-edgar","filing":"0000917273-24-000034","document":"wk-form4_1709749611.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000034/wk-form4_1709749611.xml","form_type":"4"}},{"id":1657370,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-02-06T20:32:29.000Z","date":"2024-02-05","kind":"tax_withholding","planned":false,"acquired":false,"shares":13363,"price":68.37,"value":913628.31,"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":319755,"source":{"system":"sec-edgar","filing":"0000917273-24-000019","document":"wk-form4_1707251539.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000019/wk-form4_1707251539.xml","form_type":"4"}},{"id":1662736,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-02-02T23:39:45.000Z","date":"2024-02-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":143524,"price":68.15,"value":9781160.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","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":333118,"source":{"system":"sec-edgar","filing":"0000917273-24-000008","document":"wk-form4_1706917170.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000008/wk-form4_1706917170.xml","form_type":"4"}},{"id":1662735,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-02-02T23:39:45.000Z","date":"2024-02-01","kind":"grant","planned":false,"acquired":true,"shares":221310,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2024 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":476642,"source":{"system":"sec-edgar","filing":"0000917273-24-000008","document":"wk-form4_1706917170.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000091727324000008/wk-form4_1706917170.xml","form_type":"4"}},{"id":1892352,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee stock option (right to buy)","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"exercise","planned":false,"acquired":false,"shares":302,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option award vests as to 10% of the granted shares on August 1, 2017, and the remaining shares vest monthly thereafter until fully vested on February 1, 2021."}],"balance_after":0,"derivative":{"exercise_price":12.8,"expiration_date":"2027-02-01","underlying":"Common Stock","underlying_shares":302},"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892351,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee stock option (right to buy)","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"exercise","planned":false,"acquired":false,"shares":4172,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option award vests as to 10% of the granted shares on August 1, 2018, and the remaining shares vest monthly thereafter until fully vested on February 1, 2022."}],"balance_after":0,"derivative":{"exercise_price":12.84,"expiration_date":"2028-02-01","underlying":"Common Stock","underlying_shares":4172},"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892350,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"sale","planned":false,"acquired":false,"shares":82,"price":49.3268,"value":4044.7976,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.28 to $49.60, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":255332,"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892349,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"sale","planned":false,"acquired":false,"shares":302,"price":49.3903,"value":14915.8706,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $49.187 to $49.60, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":255414,"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892348,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"exercise","planned":false,"acquired":true,"shares":302,"price":12.8,"value":3865.6,"ownership":{"direct":true},"balance_after":255716,"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892347,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"sale","planned":false,"acquired":false,"shares":4172,"price":49.3903,"value":206056.3316,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $49.187 to $49.60, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":255414,"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1892346,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-16T21:54:27.000Z","date":"2023-05-15","kind":"exercise","planned":false,"acquired":true,"shares":4172,"price":12.84,"value":53568.48,"ownership":{"direct":true},"balance_after":259586,"source":{"system":"sec-edgar","filing":"0001209191-23-029904","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123029904/doc4.xml","form_type":"4"}},{"id":1900055,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-09T20:34:26.000Z","date":"2023-05-08","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":47.9802,"value":599752.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $47.52 to $48.68, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":255414,"source":{"system":"sec-edgar","filing":"0001209191-23-028266","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123028266/doc4.xml","form_type":"4"}},{"id":1909116,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-05-02T20:22:48.000Z","date":"2023-05-01","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":44.8297,"value":560371.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.53 to $45.03, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes an exempt transaction of 761 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan."}],"balance_after":267914,"source":{"system":"sec-edgar","filing":"0001209191-23-026486","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123026486/doc4.xml","form_type":"4"}},{"id":1914444,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-04-25T22:12:59.000Z","date":"2023-04-24","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":49.4135,"value":617668.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $49.16 to $49.80, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":279653,"source":{"system":"sec-edgar","filing":"0001209191-23-025612","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123025612/doc4.xml","form_type":"4"}},{"id":1918445,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-04-18T16:41:33.000Z","date":"2023-04-17","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":49.5771,"value":619713.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $49.14 to $49.96, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":292153,"source":{"system":"sec-edgar","filing":"0001209191-23-024620","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123024620/doc4.xml","form_type":"4"}},{"id":1921964,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-04-11T13:58:41.000Z","date":"2023-04-10","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":48.6849,"value":608561.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $48.01 to $48.96, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":304653,"source":{"system":"sec-edgar","filing":"0001209191-23-023957","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123023957/doc4.xml","form_type":"4"}},{"id":1930198,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-04-04T18:27:32.000Z","date":"2023-04-03","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":51.2833,"value":641041.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $51.135 to $51.59, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":317153,"source":{"system":"sec-edgar","filing":"0001209191-23-022605","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123022605/doc4.xml","form_type":"4"}},{"id":1937321,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-03-28T18:24:18.000Z","date":"2023-03-27","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":44.9861,"value":562326.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.35 to $45.31, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":329653,"source":{"system":"sec-edgar","filing":"0001209191-23-021370","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123021370/doc4.xml","form_type":"4"}},{"id":1943650,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-03-21T18:02:10.000Z","date":"2023-03-20","kind":"sale","planned":false,"acquired":false,"shares":12500,"price":44.198,"value":552475.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.01 to $44.43, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":342153,"source":{"system":"sec-edgar","filing":"0001209191-23-020180","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123020180/doc4.xml","form_type":"4"}},{"id":1955275,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-03-14T18:20:22.000Z","date":"2023-03-13","kind":"sale","acquired":false,"shares":12500,"price":41.0605,"value":513256.25,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $40.50 to $41.51, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":354653,"source":{"system":"sec-edgar","filing":"0001209191-23-018388","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123018388/doc4.xml","form_type":"4"}},{"id":1967078,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-03-07T21:27:08.000Z","date":"2023-03-06","kind":"sale","acquired":false,"shares":12500,"price":44.8255,"value":560318.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2022."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.53 to $45.47, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":367153,"source":{"system":"sec-edgar","filing":"0001209191-23-016743","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123016743/doc4.xml","form_type":"4"}},{"id":2031141,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-02-07T00:54:44.000Z","date":"2023-02-03","kind":"grant","acquired":true,"shares":286500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 3, 2023 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":379653,"source":{"system":"sec-edgar","filing":"0001209191-23-007382","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123007382/doc4.xml","form_type":"4"}},{"id":2031140,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-02-07T00:54:44.000Z","date":"2023-02-03","kind":"tax_withholding","acquired":false,"shares":163071,"price":43.62,"value":7113157.02,"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":93153,"source":{"system":"sec-edgar","filing":"0001209191-23-007382","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919123007382/doc4.xml","form_type":"4"}},{"id":2037148,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-02-03T02:43:05.000Z","date":"2023-02-01","kind":"grant","acquired":true,"shares":47915,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The shares are represented by RSUs which vest in four equal annual installments beginning on February 1, 2024 or the first business trading day thereafter. 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These shares were sold in multiple transactions at prices ranging from $25.23 to $25.40, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":240807,"source":{"system":"sec-edgar","filing":"0001209191-22-025733","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122025733/doc4.xml","form_type":"4"}},{"id":2289917,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-27T15:46:33.000Z","date":"2022-04-25","kind":"exercise","acquired":true,"shares":8313,"price":12.84,"value":106738.92,"ownership":{"direct":true},"balance_after":249120,"source":{"system":"sec-edgar","filing":"0001209191-22-025733","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122025733/doc4.xml","form_type":"4"}},{"id":2295167,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee stock option (right to buy)","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"exercise","acquired":false,"shares":704,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option award vests as to 10% of the granted shares on August 1, 2017, and the remaining shares vest monthly thereafter until fully vested on February 1, 2021."}],"balance_after":302,"derivative":{"exercise_price":12.8,"expiration_date":"2027-02-01","underlying":"Common Stock","underlying_shares":704},"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295166,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee stock option (right to buy)","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"exercise","acquired":false,"shares":1421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The option award vests as to 10% of the granted shares on August 1, 2018, and the remaining shares vest monthly thereafter until fully vested on February 1, 2022."}],"balance_after":12485,"derivative":{"exercise_price":12.84,"expiration_date":"2028-02-01","underlying":"Common Stock","underlying_shares":1421},"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295165,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"sale","acquired":false,"shares":10375,"price":25.7649,"value":267310.8375,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2021."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.59 to $25.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":240807,"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295164,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"sale","acquired":false,"shares":704,"price":25.7954,"value":18159.9616,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2021."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $25.60 to $25.91, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":251182,"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295163,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"exercise","acquired":true,"shares":704,"price":12.8,"value":9011.2,"ownership":{"direct":true},"balance_after":251886,"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295162,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"sale","acquired":false,"shares":1421,"price":25.7812,"value":36635.0852,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2021."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $25.60 to $25.91, inclusive.  The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":251182,"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2295161,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-19T22:40:08.000Z","date":"2022-04-18","kind":"exercise","acquired":true,"shares":1421,"price":12.84,"value":18245.64,"ownership":{"direct":true},"balance_after":252603,"source":{"system":"sec-edgar","filing":"0001209191-22-024827","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024827/doc4.xml","form_type":"4"}},{"id":2298892,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-12T23:09:55.000Z","date":"2022-04-11","kind":"sale","acquired":false,"shares":12500,"price":25.8615,"value":323268.75,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2021."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.66 to $26.05, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":251182,"source":{"system":"sec-edgar","filing":"0001209191-22-024217","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/917273/000120919122024217/doc4.xml","form_type":"4"}},{"id":2305844,"issuer":{"id":3575,"kind":"organization","name":"RAMBUS INC","symbol":"RMBS"},"owners":[{"id":54005,"kind":"person","name":"Seraphin Luc","position":1,"cik":"0001341984","reported_name":"Seraphin Luc","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-04-05T16:05:42.000Z","date":"2022-04-04","kind":"sale","acquired":false,"shares":12500,"price":31.4297,"value":392871.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2021."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.226 to $31.60, inclusive. 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