BioAtla Investor Presentation Deck

Dosing regimens under evaluation for CAB-AXL-ADC BA3011 Mecbotamab Vedotin All cycles (28 days) All cycles (21 days) Cycle 1 (21 days) Cycle 2 (28 days) and subsequent cycles bicatla Source: Form 10-K Q2W 2Q3W 3Q4W Day1 1.8 mg/kg Day 8 1.8 mg/kg 1.2 mg/kg Dose no drug 1.8 mg/kg 1.8 mg/kg 1.2 mg/kg 1.2 mg/kg Day 15 1.8 mg/kg no drug 1.2 mg/kg 1.2 mg/kg Day 22 no drug no drug BioAtla| Overview 23

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