{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-269529","form_type":"8-K","ticker":"KYNB","cik":"0000921299","company_name":"KYNTRA BIO, INC.","filed_at":"2025-11-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.614665+00:00","generated_at":"2026-05-17T00:08:08.409590+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"FibroGen receives $6.4M holdback payment from AstraZeneca on China sale","bullets":["Received $6.4M from AstraZeneca, satisfying $6.0M first holdback plus $0.4M net cash adjustment.","China operations sale closed Aug 29, 2025; total consideration ~$220M ($85M enterprise + ~$135M net cash).","$210M paid at closing; $4.0M second holdback for indemnity claims remains, releasable nine months post-close.","Payment marks release of first post-closing holdback under February 2025 share purchase agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-269529","json":"https://secwatch.observer/filing/0001193125-25-269529.json","markdown":"https://secwatch.observer/filing/0001193125-25-269529.md","text":"https://secwatch.observer/filing/0001193125-25-269529.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/921299/000119312525269529/0001193125-25-269529-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/921299/000119312525269529/fgen-20251106.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T00:08:08.409590+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"}