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This sale is mandated by the Issuer's election under its equity incentive plans to require the reporting person to fund this tax withholding obligation by completing a \"sell to cover\" transaction with a brokerage firm designated by the Issuer. This sale does not represent a discretionary trade by the Reporting Person. The shares vested pursuant to awards that were granted on February 13, 2023 and March 10, 2025. Each RSU represents the contingent right to receive upon vesting of the RSU, one share of the Issuer's common stock.  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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":73055,"source":{"system":"sec-edgar","filing":"0001104659-24-123157","document":"tm2429564-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1727196/000110465924123157/tm2429564-1_4seq1.xml","form_type":"4"}},{"id":1351024,"issuer":{"id":3721,"kind":"organization","name":"Scholar Rock Holding Corp","symbol":"SRRK"},"owners":[{"id":38014,"kind":"person","name":"Marantz Jing L.","position":1,"cik":"0001834528","reported_name":"Marantz Jing L.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF MEDICAL OFFICER"}}],"security":"Common Stock","published_at":"2024-11-26T22:00:16.000Z","date":"2024-11-25","kind":"sale","planned":true,"acquired":false,"shares":2100,"price":39.2543,"value":82434.03,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on April 19, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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