{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-282373","form_type":"8-K","ticker":"PROK","cik":"0001850270","company_name":"PROKIDNEY CORP.","filed_at":"2021-09-24T23:59:59+00:00","discovered_at":"2026-05-14T18:04:20.134531+00:00","generated_at":"2026-06-29T01:37:55.191472+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Social Capital Suvretta III adds Uma Sinha to board; Chamath Palihapitiya leaves audit committee","bullets":["Uma Sinha, PhD appointed to board and audit, compensation, and nominating committees effective Sept. 24, 2021.","Chamath Palihapitiya resigned from the audit committee, effective same date; remains CEO.","Sinha granted 30,000 RSUs contingent on initial business combination and shareholder-approved equity plan.","Entered standard letter agreement (lock-up, voting) and indemnity agreement; Sinha determined independent."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-282373","json":"https://secwatch.observer/filing/0001193125-21-282373.json","markdown":"https://secwatch.observer/filing/0001193125-21-282373.md","text":"https://secwatch.observer/filing/0001193125-21-282373.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1850270/000119312521282373/0001193125-21-282373-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1850270/000119312521282373/d221875d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T01:37:55.191472+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":"4f0a2a650e","claim":"Uma Sinha was appointed as Director at PROKIDNEY CORP..","evidence_excerpt":"On September 24, 2021, Uma Sinha PhD was appointed to the board of directors (the “Board”) of Social Capital Suvretta Holdings Corp. III (the “Company”), effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1850270/000119312521282373/0001193125-21-282373-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}