{"transactions":[{"id":726234,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-25T22:09:37.000Z","date":"2026-06-24","kind":"grant","planned":false,"acquired":true,"shares":2324,"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 fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."}],"balance_after":2324,"derivative":{"underlying":"Common Stock","underlying_shares":2324},"source":{"system":"sec-edgar","filing":"0001104659-26-077867","document":"tm2619022-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465926077867/tm2619022-5_4seq1.xml","form_type":"4"}},{"id":726233,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-06-25T22:09:37.000Z","date":"2026-06-24","kind":"grant","planned":false,"acquired":true,"shares":3691,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The options fully vest upon the earlier of (i) June 24, 2027 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2027, subject to the Reporting Person's continued service on such vesting date."}],"balance_after":3691,"derivative":{"exercise_price":107.55,"expiration_date":"2036-06-23","underlying":"Common Stock","underlying_shares":3691},"source":{"system":"sec-edgar","filing":"0001104659-26-077867","document":"tm2619022-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465926077867/tm2619022-5_4seq1.xml","form_type":"4"}},{"id":726232,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-25T22:09:37.000Z","date":"2026-06-23","kind":"exercise","planned":false,"acquired":false,"shares":4712,"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 are fully vested. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units are fully vested. The restricted stock units have no expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4712},"source":{"system":"sec-edgar","filing":"0001104659-26-077867","document":"tm2619022-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465926077867/tm2619022-5_4seq1.xml","form_type":"4"}},{"id":726231,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-25T22:09:37.000Z","date":"2026-06-23","kind":"exercise","planned":false,"acquired":true,"shares":4712,"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":11712,"source":{"system":"sec-edgar","filing":"0001104659-26-077867","document":"tm2619022-5_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465926077867/tm2619022-5_4seq1.xml","form_type":"4"}},{"id":1100900,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-26T20:41:21.000Z","date":"2025-06-24","kind":"grant","planned":false,"acquired":true,"shares":4712,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 24, 2026 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2026, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 24, 2026 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2026, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."}],"balance_after":4712,"derivative":{"underlying":"Common Stock","underlying_shares":4712},"source":{"system":"sec-edgar","filing":"0001104659-25-063072","document":"tm2519230-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465925063072/tm2519230-5_4seq1.xml","form_type":"4"}},{"id":1100899,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2025-06-26T20:41:21.000Z","date":"2025-06-24","kind":"grant","planned":false,"acquired":true,"shares":7037,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) June 24, 2026 or (ii) the day immediately prior to the date of the Issuer's next annual meeting of the stockholders to be held in 2026, subject to the Reporting Person's continued service on such vesting date."}],"balance_after":7037,"derivative":{"exercise_price":63.66,"expiration_date":"2035-06-23","underlying":"Common Stock","underlying_shares":7037},"source":{"system":"sec-edgar","filing":"0001104659-25-063072","document":"tm2519230-5_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465925063072/tm2519230-5_4seq1.xml","form_type":"4"}},{"id":1103528,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-23T20:53:43.000Z","date":"2025-06-18","kind":"exercise","planned":false,"acquired":false,"shares":4000,"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 fully vested on June 18, 2025. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units fully vested on June 18, 2025. The restricted stock units have no expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":4000},"source":{"system":"sec-edgar","filing":"0001104659-25-061714","document":"tm2518591-6_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465925061714/tm2518591-6_4seq1.xml","form_type":"4"}},{"id":1103527,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-06-23T20:53:43.000Z","date":"2025-06-18","kind":"exercise","planned":false,"acquired":true,"shares":4000,"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":7000,"source":{"system":"sec-edgar","filing":"0001104659-25-061714","document":"tm2518591-6_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465925061714/tm2518591-6_4seq1.xml","form_type":"4"}},{"id":1469361,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-06-25T20:35:08.000Z","date":"2024-06-21","kind":"exercise","planned":false,"acquired":false,"shares":3000,"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 fully vested on June 21, 2024. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units fully vested on June 21, 2024. The restricted stock units have no expiration date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001104659-24-074766","document":"tm2418139-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465924074766/tm2418139-2_4seq1.xml","form_type":"4"}},{"id":1469360,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-06-25T20:35:08.000Z","date":"2024-06-21","kind":"exercise","planned":false,"acquired":true,"shares":3000,"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":3000,"source":{"system":"sec-edgar","filing":"0001104659-24-074766","document":"tm2418139-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465924074766/tm2418139-2_4seq1.xml","form_type":"4"}},{"id":1472894,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-06-21T01:42:52.000Z","date":"2024-06-18","kind":"grant","planned":false,"acquired":true,"shares":4000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 18, 2025 or (ii) the date of the Issuer's annual meeting of the stockholders to be held in 2025, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 18, 2025 or (ii) the date of the Issuer's annual meeting of the stockholders to be held in 2025, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."}],"balance_after":4000,"derivative":{"underlying":"Common Stock","underlying_shares":4000},"source":{"system":"sec-edgar","filing":"0001104659-24-073636","document":"tm2417588-4_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465924073636/tm2417588-4_4seq1.xml","form_type":"4"}},{"id":1472893,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2024-06-21T01:42:52.000Z","date":"2024-06-18","kind":"grant","planned":false,"acquired":true,"shares":14000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) June 18, 2025 or (ii) the date of the Issuer's annual meeting of the stockholders to be held in 2025, subject to the Reporting Person's continued service on such vesting date."}],"balance_after":14000,"derivative":{"exercise_price":41.39,"expiration_date":"2034-06-17","underlying":"Common Stock","underlying_shares":14000},"source":{"system":"sec-edgar","filing":"0001104659-24-073636","document":"tm2417588-4_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465924073636/tm2417588-4_4seq1.xml","form_type":"4"}},{"id":1844942,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-06-23T20:31:23.000Z","date":"2023-06-21","kind":"grant","planned":false,"acquired":true,"shares":3000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 21, 2024 or (ii) the date of the Issuer's next annual meeting of the stockholders, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units fully vest upon the earlier of (i) June 21, 2024 or (ii) the date of the Issuer's next annual meeting of the stockholders, subject to the Reporting Person's continued service on such vesting date. The restricted stock units have no expiration date."}],"balance_after":3000,"derivative":{"underlying":"Common Stock","underlying_shares":3000},"source":{"system":"sec-edgar","filing":"0001104659-23-074294","document":"tm2319485-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465923074294/tm2319485-3_4seq1.xml","form_type":"4"}},{"id":1844941,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2023-06-23T20:31:23.000Z","date":"2023-06-21","kind":"grant","planned":false,"acquired":true,"shares":14000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) June 21, 2024 or (ii) the date of the Issuer's next annual meeting of the stockholders, subject to the Reporting Person's continued service on such vesting date."}],"balance_after":14000,"derivative":{"exercise_price":18.47,"expiration_date":"2033-06-20","underlying":"Common Stock","underlying_shares":14000},"source":{"system":"sec-edgar","filing":"0001104659-23-074294","document":"tm2319485-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465923074294/tm2319485-3_4seq1.xml","form_type":"4"}},{"id":2235542,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2022-06-10T20:06:41.000Z","date":"2022-06-08","kind":"grant","acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) June 8, 2023 or (ii) the date of the Issuer's next annual meeting of the stockholders."}],"balance_after":20000,"derivative":{"exercise_price":4.15,"expiration_date":"2032-06-07","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001104659-22-070110","document":"tm2218129-6_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465922070110/tm2218129-6_4seq1.xml","form_type":"4"}},{"id":2671446,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2021-06-11T20:06:17.000Z","date":"2021-06-09","kind":"grant","acquired":true,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) June 9, 2022 or (ii) the date of the Issuer's next annual meeting of the stockholders."}],"balance_after":15000,"derivative":{"exercise_price":18.99,"expiration_date":"2031-06-08","underlying":"Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001104659-21-080106","document":"tm2119501-4_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465921080106/tm2119501-4_4seq1.xml","form_type":"4"}},{"id":3105154,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2020-06-18T21:26:17.000Z","date":"2020-06-17","kind":"grant","acquired":true,"shares":18500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) 1 year from the date of grant or (ii) the date of the Issuer's next annual meeting of the stockholders."}],"balance_after":18500,"derivative":{"exercise_price":21.37,"expiration_date":"2030-06-16","underlying":"Common Stock","underlying_shares":18500},"source":{"system":"sec-edgar","filing":"0001104659-20-074734","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465920074734/a4.xml","form_type":"4"}},{"id":3481000,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2019-06-21T20:13:37.000Z","date":"2019-06-19","kind":"grant","acquired":true,"shares":15000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) 1 year from the date of grant or (ii) the date of the Issuer's next annual meeting of the stockholders."}],"balance_after":15000,"derivative":{"exercise_price":22.93,"expiration_date":"2029-06-18","underlying":"Common Stock","underlying_shares":15000},"source":{"system":"sec-edgar","filing":"0001104659-19-037016","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465919037016/a4.xml","form_type":"4"}},{"id":3899596,"issuer":{"id":3693,"kind":"organization","name":"RHYTHM PHARMACEUTICALS, INC.","symbol":"RYTM"},"owners":[{"id":35336,"kind":"person","name":"JEAN CHRISTOPHE","position":1,"cik":"0001378435","reported_name":"JEAN CHRISTOPHE","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2018-06-08T20:08:15.000Z","date":"2018-06-06","kind":"grant","acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The options fully vest upon the earlier of (i) 1 year from the date of grant or (ii) the date of the Issuer's next annual meeting of the stockholders."}],"balance_after":10000,"derivative":{"exercise_price":34.89,"expiration_date":"2028-06-05","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001104659-18-039181","document":"a4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1378435/000110465918039181/a4.xml","form_type":"4"}}]}