{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-421076","form_type":"8-K","ticker":"APVO","cik":"0001671584","company_name":"Aptevo Therapeutics Inc.","filed_at":"2026-10-14T12:52:13+00:00","discovered_at":"2026-10-14T12:55:00.172451+00:00","generated_at":"2026-10-14T12:55:02.247664+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Aptevo to present CD40-directed multispecific platform at SITC 2026, Nov 4-8 in Phoenix","bullets":["Abstract 1060, \"Leveraging multispecific antibody-like molecules to localize CD40 agonism to the tumor,\" to be presented by Michelle Nelson, PhD, at SITC 2026 in Phoenix.","Presentation covers Aptevo's broader CD40-directed multispecific portfolio, designed to combine innate and adaptive immune activation within the tumor microenvironment.","Company says tumor-directed CD40-activating molecules localize immune activation at the tumor while seeking to limit systemic immune activation.","CSO Mary Janatpour, PhD, cited the work as continued evolution of the multispecific platform targeting persistent solid-tumor challenges.","Slides to be posted on Aptevo's website Publications page after the November 4-8, 2026 meeting; no clinical data or timelines disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-421076","json":"https://secwatch.observer/filing/0001193125-26-421076.json","markdown":"https://secwatch.observer/filing/0001193125-26-421076.md","text":"https://secwatch.observer/filing/0001193125-26-421076.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1671584/000119312526421076/0001193125-26-421076-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1671584/000119312526421076/apvo-20261014.htm"},"model":{"generated_by":"deepseek-v4.1-flash:cloud@v2","generated_at":"2026-10-14T12:55:02.247664+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"}