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The restricted stock units have no expiration date."}],"balance_after":7225,"derivative":{"underlying":"Common Stock","underlying_shares":7225},"source":{"system":"sec-edgar","filing":"0001104659-25-015319","document":"tm257103-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465925015319/tm257103-3_4seq1.xml","form_type":"4"}},{"id":1259263,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Common Stock","published_at":"2025-02-20T02:45:16.000Z","date":"2025-02-19","kind":"sale","planned":false,"acquired":false,"shares":635,"price":57.22,"value":36334.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale reported in this Form 4 was effected pursuant to non-Rule 10b5-1 trading arrangement, as defined in Item 408(a) of Regulation S-K, solely with the intent to cover withholding taxes in connection with the vesting of certain previously reported restricted stock units."}],"balance_after":2070,"source":{"system":"sec-edgar","filing":"0001104659-25-015319","document":"tm257103-3_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465925015319/tm257103-3_4seq1.xml","form_type":"4"}},{"id":1259262,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Common Stock","published_at":"2025-02-20T02:45:16.000Z","date":"2025-02-16","kind":"exercise","planned":false,"acquired":true,"shares":1807,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 103 additional shares acquired under the Issuer's Employee Stock Purchase Plan."}],"balance_after":2705,"source":{"system":"sec-edgar","filing":"0001104659-25-015319","document":"tm257103-3_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465925015319/tm257103-3_4seq1.xml","form_type":"4"}},{"id":1549039,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Restricted Stock Units","published_at":"2024-04-04T00:00:51.000Z","date":"2024-03-20","kind":"exercise","planned":false,"acquired":false,"shares":1163,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units have vested or will vest as to 25% of the total shares on each of March 20, 2024, March 20, 2025, March 20, 2026 and March 20, 2027, subject to the Reporting Person's continued service on each such vesting date. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units have vested or will vest as to 25% of the total shares on each of March 20, 2024, March 20, 2025, March 20, 2026 and March 20, 2027, subject to the Reporting Person's continued service on each such vesting date. The restricted stock units have no expiration date."}],"balance_after":3487,"derivative":{"underlying":"Common Stock","underlying_shares":1163},"source":{"system":"sec-edgar","filing":"0001104659-24-043249","document":"tm2410989-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465924043249/tm2410989-1_4seq1.xml","form_type":"4"}},{"id":1549038,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Common Stock","published_at":"2024-04-04T00:00:51.000Z","date":"2024-04-02","kind":"sale","planned":false,"acquired":false,"shares":368,"price":41.76,"value":15367.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"The sale reported in this Form 4 was effected pursuant to non-Rule 10b5-1 trading arrangement, as defined in Item 408(a) of Regulation S-K, solely with the intent to cover withholding taxes in connection with the vesting of certain previously reported restricted stock units."},{"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 per share prices ranging from $41.55 to $41.76. 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 within the range set forth in this footnote."}],"balance_after":795,"source":{"system":"sec-edgar","filing":"0001104659-24-043249","document":"tm2410989-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465924043249/tm2410989-1_4seq1.xml","form_type":"4"}},{"id":1549037,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Common Stock","published_at":"2024-04-04T00:00:51.000Z","date":"2024-03-20","kind":"exercise","planned":false,"acquired":true,"shares":1163,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."}],"balance_after":1163,"source":{"system":"sec-edgar","filing":"0001104659-24-043249","document":"tm2410989-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465924043249/tm2410989-1_4seq1.xml","form_type":"4"}},{"id":1628529,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-02-22T00:02:26.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":5400,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The stock options were granted on February 16, 2024. The options vest and become exercisable in 16 substantially equal installments upon the Reporting Person's completion of each three full months of successive service to the Issuer following the grant date."}],"balance_after":5400,"derivative":{"exercise_price":49.23,"expiration_date":"2034-02-15","underlying":"Common Stock","underlying_shares":5400},"source":{"system":"sec-edgar","filing":"0001104659-24-026159","document":"tm246920-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465924026159/tm246920-5_4seq1.xml","form_type":"4"}},{"id":1628528,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":45963,"kind":"person","name":"German Christopher Paul","position":1,"cik":"0001260835","reported_name":"German Christopher Paul","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Controller & CAO"}}],"security":"Restricted Stock Units","published_at":"2024-02-22T00:02:26.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":7225,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest as to 25% of the total shares on each of February 16, 2025, February 16, 2026, February 16, 2027 and February 16, 2028. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest as to 25% of the total shares on each of February 16, 2025, February 16, 2026, February 16, 2027 and February 16, 2028. The restricted stock units have no expiration date."}],"balance_after":7225,"derivative":{"underlying":"Common Stock","underlying_shares":7225},"source":{"system":"sec-edgar","filing":"0001104659-24-026159","document":"tm246920-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1260835/000110465924026159/tm246920-5_4seq1.xml","form_type":"4"}}]}