Form 4 Filing for Marc Cobo

Marc Cobo, Principal Accounting Officer at BridgeBio Oncology Therapeutics, Inc. (BBOT), reported a disposition of 126 shares of Common Stock on October 1, 2026. The transaction, coded as "F", occurred at a price of $3.94 per share. Following this transaction, Cobo owns 14,015 shares of the company's common stock. The shares withheld were to satisfy tax obligations related to the vesting of restricted stock units, as indicated by footnote F1. The filing was signed by Aaron Chan, Attorney-in-Fact, on October 5, 2026.