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Boundless Bio, Inc. Common Stock and Prothena Corporation plc Ordinary Shares

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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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Prothena Corporation plc Ordinary Shares

Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. Its product pipeline include Prasinezumab, an investigational humanized monoclonal antibody which is in phase 2b clinical trial, as well as phase 1 and 2 clinical trials for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in phase 2 clinical trial for potential treatment of transthyretin amyloidosis; BMS-986446, an investigational antibody, which is in phase 2 clinical trial to treat Alzheimer's disease; PRX012, an investigational antibody, which is in phase 1 clinical trial to treat Alzheimer's disease; PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease; and PRX019, an investigational antibody, which is in phase 1 clinical trial for the potential treatment of neurodegenerative diseases. It has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target a-synuclein, including prasinezumab; and master collaboration agreement with Bristol Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. Prothena Corporation plc was incorporated in 2012 and is based in Dublin, Ireland.

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