{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-018334","form_type":"8-K","ticker":"BBOT","cik":"0001869105","company_name":"BridgeBio Oncology Therapeutics, Inc.","filed_at":"2025-02-28T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.422513+00:00","generated_at":"2026-05-26T00:03:19.762315+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"BBOT to merge with Helix II SPAC in $450M deal; public listing expected Q3 2025","bullets":["Total proceeds ~$450M from Helix trust (~$196M) and $260M PIPE led by Cormorant, including Deerfield, Novo Holdings, Wellington.","Combined company to be named BridgeBio Oncology Therapeutics (BBOT), trading on Nasdaq under ticker BBOT.","Pro forma equity value ~$949M at $10.36/share assuming no redemptions; BBOT shareholders roll 100% equity.","Lead programs: BBO-8520 (KRAS G12C Phase 1), BBO-10203 (RAS-PI3Kα Phase 1), BBO-11818 (pan-KRAS Phase 1 starting H1 2025).","Transaction approved by both boards; expected close Q3 2025, subject to stockholder approvals and conditions."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-018334","json":"https://secwatch.observer/filing/0001213900-25-018334.json","markdown":"https://secwatch.observer/filing/0001213900-25-018334.md","text":"https://secwatch.observer/filing/0001213900-25-018334.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1869105/000121390025018334/0001213900-25-018334-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1869105/000121390025018334/ea0232555-8k425_helix2.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T00:03:19.762315+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"}