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Ari Kellen

Executive Advisor

Dr. Ari Kellen is spearheading Water Street’s search for its next investment in the specialty pharmaceutical sector. Working with Joseph C. Papa, he is pursuing discussions with founders and leadership teams of businesses who are interested in a partner to advance their goals for growth. Ari has dedicated most of his career to advising leaders on growing their healthcare businesses. During his 20+ years with McKinsey & Company, he specialized in collaborating with pharmaceutical, medical device, and healthcare services companies. He also advanced numerous research and development product initiatives while leading multi-billion-dollar businesses during his tenure as executive vice president of Bausch Health. Ari began his career as a practicing physician. He earned his medical and business administration degrees from Witwatersrand University in South Africa.

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