Company: BLLN
Filing Date: 2025-10-17
Form Type: S-1/A
Source: 0001193125-25-242632
Chunk: 267

Company: BillionToOne, Inc.
Filing Date: 2025-10-17
Form: S-1/A
Chunk 267
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 serves as our Chief Product Officer. Prior to her role as
Chief Product Officer, Ms. Riku Sakakibara served in other executive positions, most recently as Senior Vice President of Product. Ms. Riku Sakakibara oversees both clinical and software product management, marketing, translational
research, and clinical and medical affairs at BillionToOne. Ms. Riku Sakakibara has over 15 years of experience in launching and managing a wide range of products from software products to precision diagnostics clinical assays. Previously,
Ms. Riku Sakakibara served as a Senior Product Manager and Portfolio Strategy Manager at Natera, Inc. from 2015 to 2017. Ms. Riku Sakakibara started her career at McKinsey & Co., where she worked with Fortune 100 companies.
Ms. Riku Sakakibara graduated with a B.S. in chemistry from Massachusetts Institute of Technology, holds an MBA from Stanford University, and an MPA/ID from Harvard University.

John Lister joined BillionToOne in July 2025 as our Chief Administrative Officer. Prior to joining BillionToOne, Mr. Lister served as Chief Operating
Officer of the Tidepool Project, a diabetes software company, from June 2022 through June 2025. From January 2020 through January 2023, Mr. Lister provided strategic commercial, corporate finance and legal advice to companies in the healthcare
space, including Tandem Diabetes, Zoe Global, WaveForm Diabetes and Candid Dental. Previously, Mr. Lister worked for Dexcom, Inc., a publicly-traded producer of continuous glucose monitoring systems, from 2008 to 2019. Mr Lister served in
various executive positions at Dexcom, including as General Counsel & Head of Human Resources from 2008 to 2015, and as General Manager for Dexcom’s International business from 2015 to 2019. Mr. Lister began his career as an attorney
at Fenwick & West LLP. Mr. Lister earned a B.A. in government and literature from Claremont McKenna College and a JD from University of San Francisco Law School.

Thomas Lynch joined BillionToOne as our General Counsel in October 2022. Mr. Lynch brings over two decades of experience leading legal teams. Prior to
joining us, he served as Chief Compliance Officer, Advanced Healthcare Solutions at Fortive Corporation, a publicly traded provider of connected workflow solutions technologies, from April 2021 to October 2022.