BioAtla Investor Conference Presentation Deck

BioAtla® is a clinical stage company focused on transforming cancer therapy with Conditionally Active Biologics (CABS) ● Proprietary technology Broad applicability Spans multiple tumors bicatla Execute on clinical programs ● ● Two lead CAB-ADC assets in Phase 2 Interim Phase 2 data w/ 3011 supports advancing in multiple sarcoma indications Near-term catalysts ● ● Diversified and robust pipeline Strategic optionality Create long-term sustainable value ● ● Strong cash position $219.4MM (at end 1Q22) with runway into 2H24 Sufficient through key clinical milestones Build core commercial capabilities BioAtla Overview | Company Confidential 14

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