Executive Leadership

Bruce Culleton, MD

Bruce Culleton, MD, Chief Executive Officer

Dr. Culleton joins ProKidney from CVS Kidney Care, a wholly owned subsidiary of CVS Health, where he was most recently Vice President and General Manager. Previously, he served as Vice President and Chief Medical Officer at CVS Kidney Care. Before joining CVS Health, he was Vice President, Global Clinical Development and World Wide Vice President, … Read more

Farah Ali, MD, MS

Farah Ali, MD, MS, SVP, Clinical Development and Medical Affairs

Farah joins ProKidney bringing extensive experience and a proven track record in clinical development, including oversight of global clinical programs, regulatory submissions, and product lifecycle management. Her previous roles include Senior Vice President, Clinical Development at Immunovant leading endocrinology and rheumatology, Vice President, Clinical Development for Rare Disease at Amgen, and Vice President, Clinical Development … Read more

Emily Butler, PhD

Emily Butler, PhD, SVP, Biometrics

Dr. Butler joined ProKidney in April 2021 as Director, Biostatistics. She was promoted to Vice President, Biometrics in 2022 and built the Biostatistics, Data Management, Statistical Programming and Data Science functions. She is responsible for owning, managing, analyzing and reporting data across the portfolio and has served as Senior Vice President, Biometrics since 2023. Prior … Read more

James Coulston, CPA

James Coulston, CPA, Chief Financial Officer

Mr. Coulston has served as ProKidney’s Chief Financial Officer since January 2022. Prior to that, Mr. Coulston served as ProKidney’s Senior Vice President, Finance, from January 2021 to December 2021 and ProKidney’s Vice President, Finance, from February 2019 to December 2020. Before joining ProKidney, from August 2015 to January 2019, Mr. Coulston served as the … Read more

Todd C. Girolamo, JD, MBA

Todd C. Girolamo, JD, MBA, Chief Legal Officer and Secretary

Mr. Girolamo joined ProKidney as Chief Legal Officer in March 2022. Prior to that, he spent 11 years at Caladrius Biosciences, Inc. (Nasdaq: CLBS), where he served as Chief Legal Officer, Senior Vice President of Corporate Development and Corporate Secretary. He began his legal career at Cahill Gordon & Reindel in 1990 and later at … Read more

Ken Locke

Mr. Locke brings more than 25 years of experience leading technical operations, manufacturing, sourcing, and supply chain organizations across multiple therapeutic modalities. Throughout his career, he has built and led organizations responsible for manufacturing, sourcing, process development, supply chain, contracting, and quality, supporting products from early development through eventual commercial launch. Most recently, Mr. Locke … Read more

Greg Madison

Greg Madison

Mr. Madison brings more than two decades of executive leadership experience across commercial strategy, general management, launch planning, business development, and company building in both clinical and commercial-stage biopharmaceutical companies. Most recently, he served as Chief Executive Officer of Shield Therapeutics plc, where he redesigned the commercial strategy, identified and led a transformative business development … Read more

Carla Poulson

Carla Poulson, Chief People Officer

Carla Poulson is a strategic Senior Human Resources Leader with 25 years of experience in the US and Europe. She has experience with a variety of operations (building a European operation, company in hyper-growth phase) in which HR played a critical role in ensuring organizational capability and structure, as well as building the culture. Carla … Read more

Joseph Stavas, MD, MPH

Joseph Stavas, MD, MPH, SVP, Clinical Affairs

Dr. Stavas has served as ProKidney’s Senior Vice President of Clinical Affairs since December 2022. He joined ProKidney as Senior Vice President of Clinical Development in October 2019 and led the strategic advancement of clinical trials and scientific discovery and development. He brings over 30 years of experience in medical practice, academics and research endeavors … Read more

Darin J. Weber, PhD

Darin J. Weber, PhD, Chief Regulatory Officer

Dr. Weber has served as our Chief Regulatory Officer since December 2022, having served as Senior Vice President of Regulatory Development since September 2020, where Dr. Weber is responsible for leading the development and implementation of ProKidney’s regulatory strategy in all markets, worldwide, and interfacing with regulatory authorities. Dr. Weber has over 30 years of … Read more

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