{"schema_version":"secwatch.filing_event.v1","accession":"0001326732-26-000021","form_type":"8-K","ticker":"XNCR","cik":"0001326732","company_name":"Xencor Inc","filed_at":"2026-03-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.813251+00:00","generated_at":"2026-05-15T21:32:59.959052+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Alexion refuses further US Ultomiris royalties; Xencor disputes, cuts revenue forecast","bullets":["Alexion informed Xencor it will not pay additional US royalties on Ultomiris and will cease future US payments.","Xencor previously expected $100-$120M in additional US royalties through 2028; now considers that revenue at risk.","Ex-US royalty payments from Alexion continue unchanged, per Xencor's CEO.","Xencor updates 2026 year-end cash guidance to $380-400M; operating runway extended into mid-2028.","Xencor is actively evaluating options and disagrees with Alexion's position."],"urls":{"canonical":"https://secwatch.observer/filing/0001326732-26-000021","json":"https://secwatch.observer/filing/0001326732-26-000021.json","markdown":"https://secwatch.observer/filing/0001326732-26-000021.md","text":"https://secwatch.observer/filing/0001326732-26-000021.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1326732/000132673226000021/0001326732-26-000021-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1326732/000132673226000021/xncr-20260304.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T21:32:59.959052+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"}