secwatch.observer — SEC 8-K summary ====================================== Issuer: BridgeBio Oncology Therapeutics, Inc. (BBOT) CIK: 0001869105 Form: 8-K Filed at: 2026-09-08T20:19:06+00:00 Accession: 0001193125-26-385225 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 BBOT reports 75% ORR for BBO-8520 combo in 2L+ NSCLC; focuses on KRAS combos ---------------------------------------------------------------------------- - BBO-8520 + pembrolizumab: 75% ORR at 500 mg QD, 53% across doses in 2L+ G12C inhibitor-experienced NSCLC (N=17). - BBO-8520 monotherapy ORR 63% (26/41), DCR 100% (41/41), no grade 3 liver enzyme elevations in 2L+ G12C inhibitor-naive NSCLC. - $344.1M cash as of June 30, 2026; projected runway into 2028. - Strategic focus on BBO-8520 combo and BBO-11818/BBO-10203 combos in KRAS-mutant CRC and PDAC; data updates Q4 2026 and mid-2027. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1869105/000119312526385225/0001193125-26-385225-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1869105/000119312526385225/d97546d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-385225 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer