{"schema_version":"secwatch.filing_event.v1","accession":"0001595974-26-000016","form_type":"8-K","ticker":"MGNI","cik":"0001595974","company_name":"MAGNITE, INC.","filed_at":"2026-04-20T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.545322+00:00","generated_at":"2026-05-15T05:19:49.881194+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Magnite CFO David Day to retire by Sept 30, 2026; transition advisor role through May 2027","bullets":["David Day to retire as CFO, serve until Sept 30, 2026, then as non-executive advisor through May 31, 2027.","Board commenced search for new CFO, including external and internal candidates; Day will assist in transition.","Company reaffirmed Q1 and full year 2026 financial expectations, as previously disclosed on Feb 25, 2026.","Day has been CFO for ~10 years; oversaw Magnite's growth including merger of Rubicon Project and Telaria and acquisitions of SpotX and SpringServe."],"urls":{"canonical":"https://secwatch.observer/filing/0001595974-26-000016","json":"https://secwatch.observer/filing/0001595974-26-000016.json","markdown":"https://secwatch.observer/filing/0001595974-26-000016.md","text":"https://secwatch.observer/filing/0001595974-26-000016.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1595974/000159597426000016/0001595974-26-000016-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1595974/000159597426000016/mgni-20260420.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T05:19:49.881194+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"}