{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-225119","form_type":"8-K","ticker":"SABS","cik":"0001833214","company_name":"SAB Biotherapeutics, Inc.","filed_at":"2025-09-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.217958+00:00","generated_at":"2026-05-17T05:17:42.278022+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Christine Hamilton and Jeffrey Spragens resign from SAB Biotherapeutics board; size cut to nine","bullets":["Christine Hamilton and Jeffrey Spragens resigned as board members effective September 30, 2025.","Board size reduced from 11 to 9 directors, per July 2025 letter agreement with RA Capital Healthcare Fund.","Resignations were not the result of any disagreement with management or company policies.","The changes follow terms of the company's July 2025 private placement of securities."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-225119","json":"https://secwatch.observer/filing/0001193125-25-225119.json","markdown":"https://secwatch.observer/filing/0001193125-25-225119.md","text":"https://secwatch.observer/filing/0001193125-25-225119.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1833214/000119312525225119/0001193125-25-225119-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1833214/000119312525225119/sabs-20250930.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:17:42.278022+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}