{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-22-101344","form_type":"8-K","ticker":"SRRK","cik":"0001727196","company_name":"Scholar Rock Holding Corp","filed_at":"2022-09-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:56.831075+00:00","generated_at":"2026-06-23T08:34:05.625174+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Scholar Rock names Jay Backstrom as CEO; founder Mahanthappa to exit Oct 20","bullets":["Jay Backstrom appointed CEO-Elect Sept 20; assumes President & CEO and board seat Oct 20, 2022.","Founding CEO Nagesh Mahanthappa resigns as Interim CEO and President effective Oct 20; role as strategic advisor.","Backstrom gets $600K base salary, 60% bonus target, and inducement option for 1,000,000 shares.","Backstrom previously EVP R&D at Acceleron (acquired by Merck); led TGFβ therapies REBLOZYL and sotatercept."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-22-101344","json":"https://secwatch.observer/filing/0001104659-22-101344.json","markdown":"https://secwatch.observer/filing/0001104659-22-101344.md","text":"https://secwatch.observer/filing/0001104659-22-101344.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/tm2226156d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-23T08:34:05.625174+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"76b7dda724","claim":"Nagesh Mahanthappa departed as Interim Chief Executive Officer and President at Scholar Rock Holding Corp.","evidence_excerpt":"Nagesh Mahanthappa was resigning as the Company’s Interim Chief Executive Officer and President and as a member of the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigning"},{"label":"Role","value":"Interim Chief Executive Officer and President"}],"fact_type":"executive_change"},{"claim_id":"f58650ecc9","claim":"Jay Backstrom was appointed as President & Chief Executive Officer at Scholar Rock Holding Corp.","evidence_excerpt":"appointed Dr. Jay Backstrom as Chief Executive Officer-Elect effective as of September 20, 2022.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1727196/000110465922101344/0001104659-22-101344-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"President & Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}