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BOLD vs ZBIO

Boundless Bio, Inc. Common Stock and Zenas BioPharma, Inc. Common Stock

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Boundless Bio, Inc. Common Stock

Boundless Bio, Inc., a clinical-stage oncology company, develops cancer therapeutics to address the unmet need of patients with oncogene amplified tumors by interrogating extrachromosomal DNA (ecDNA). The company's lead product candidate is BBI-355, an ecDNA-directed therapeutic candidate and oral inhibitor of checkpoint kinase 1 that is in Phase 1/2 clinical trial in patients with oncogene amplified cancers. It also develops BBI-098, a picomolar biochemical inhibition of checkpoint kinase 1 demonstrating central nervous system penetrance in preclinical models. In addition, the company offers ECHO, an ecDNA harboring oncogenes diagnostic test to detect ecDNA in patient tumor specimens; and Spyglass platform, a platform used to identify druggable targets in oncogene amplified cancers. The company was formerly known as Pretzel Therapeutics, Inc. and changed its name to Boundless Bio, Inc. in July 2019. Boundless Bio, Inc. was incorporated in 2018 and is headquartered in San Diego, California.

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Zenas BioPharma, Inc. Common Stock

Zenas BioPharma, Inc., a clinical-stage biopharmaceutical company, engages in the development and commercialization of transformative immunology-based therapies. Its lead product candidate is obexelimab, a bifunctional monoclonal antibody designed to bind CD19 and Fc"RIIb for the treatment of various I&I diseases and various indications, including immunoglobulin G4-related disease, multiple sclerosis, and systemic lupus erythematosus. The company also develops ZB002, an anti-TNFa monoclonal antibody; ZB004, a cytotoxic T-lymphocyte-associated antigen 4-immunoglobulin fusion; and ZB001, an anti-IGF-1R monoclonal antibody. The company was formerly known as Zenas BioPharma (Cayman) Limited and changed its name to Zenas BioPharma, Inc. in August 2023. The company was incorporated in 2019 and is headquartered in Waltham, Massachusetts.

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