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{"aggregator_url":"https://www.sec.gov {"aggregator_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","as_of":"2026-04-18T03:05:05.644967+00:00","canonical_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","company":"Summit Therapeutics Inc.","enrichment":{"aggregator_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","article_chars":5000,"article_truncated":true,"blocked_reason":null,"candidate_id":"sc_6178542deaf38535","canonical_host":"sec.gov","canonical_is_aggregator":false,"canonical_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","content_type":"text/plain","enriched_at":"2026-04-18T03:42:48.918353+00:00","extraction_method":"heuristic","fetched_description":"","fetched_title":"smmt-20260417","final_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","html_truncated":true,"paywall_likely":false,"publisher_domain":"sec.gov","publisher_resolution":"canonical_url","requested_url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt","source_event_id":"evt_4971ac588080","source_quality":"high","status_code":200,"version":"signal_enrichment_v2"},"form_type":"DEFA14A","fp":"c102d43e83db061f","kind":"sec_filing","published_at":"20260417","publisher_domain":"sec.gov","signal_understanding":{"analysis_basis":"article","claim_confidence":0.78,"dates_mentioned":["2026-04-17","2026-04-18T03:05:05.644967+00:00","2015-02-19","2014-02-05","2025-01-01","2025-12-31"],"entities":[{"asset_class":"equity","name":"Summit Therapeutics Inc.","relevance":"primary","symbol":"","type":"issuer_company"},{"asset_class":"regulator","name":"U.S. Securities and Exchange Commission","relevance":"context","symbol":"","type":"regulator"}],"event_type":"listing","information_gaps":["The cleaned text does not include the substantive content of the DEFA14A (e.g., what additional proxy materials are being provided, the amendment number, or any specific proposals/board actions).","No prior known state is provided in the prompt, so the exact \u201cdelta vs prior\u201d (what changed) cannot be determined from the provided text alone."],"key_facts":["Form type: DEFA14A.","Filing date shown in the document: 2026-04-17 (filed as of date 20260417).","Accession number: 0001599298-26-000033.","Submission type indicated: \u201cDefinitive Additional Materials\u201d (Schedule 14A / Rule 14a-101).","Registrant name in the filing: Summit Therapeutics Inc.","Payment of filing fee: \u201cNo fee required.\u201d","SEC Act referenced: Securities Exchange Act of 1934.","SEC file number shown: 001-36866.","Central Index Key (CIK) shown: 0001599298."],"numeric_claims":[{"label":"Accession number","value":"0001599298-26-000033"},{"label":"SEC file number","value":"001-36866"},{"label":"CIK","value":"0001599298"},{"label":"Public document count","value":"11"}],"primary_claim":"Summit Therapeutics Inc. filed Form DEFA14A (definitive additional materials) with the SEC on 2026-04-17 (accession 0001599298-26-000033).","relevance_score":0.55,"sentiment":"neutral","source_quality":"high","summary":"Summit Therapeutics Inc. filed a definitive additional proxy-related filing on Form DEFA14A with the SEC on 2026-04-17. The filing is identified as a definitive additional materials submission under Schedule 14A (Rule 14a-101).","topics":["SEC filing","Schedule 14A","DEFA14A","proxy statement additional materials"]},"source":"sec_edgar","source_domain":"sec.gov","summary":"Form DEFA14A \u00b7 Summit Therapeutics Inc. \u00b7 Filed 20260417","ticker":"SMMT","tickers":["SMMT"],"title":"SMMT filed DEFA14A","url":"https://www.sec.gov/Archives/edgar/data/1599298/0001599298-26-000033.txt"}... |