Kazunari Tsunaba is the founder of Aculys Pharma. Aculys Pharma has raised $140M in total funding. Latest round: Series C. Backed by SoftBank Vision Fund 2.
Kazunari Tsunaba is the Co-founder and CEO of Aculys Pharma, a biopharmaceutical company focused on neurological and psychiatric drug development. He led the company through funding rounds totaling $140 million, including a Series A led by SoftBank Vision Fund 2. In June 2025, Aculys Pharma was acquired by Viatris Inc.
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