United States

EY - United States winner

Lonnie Moulder


Mary Lynne Hedley, PhD

President and COO


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In the eight years since Lonnie Moulder and Dr. Mary Lynne Hedley founded biopharmaceutical company TESARO, it has grown from 3 associates to nearly 700 employees on two continents and has achieved a market capitalization of more than US$6b.

The two former colleagues worked for a large pharmaceutical company before starting their own firm to focus on improving the quality of life for cancer patients. Since its inception, TESARO has brought two new drugs to the international market and has started clinical trials on several others.

The company focuses not just on oncology but also supportive care for cancer patients. It has developed treatments for ovarian cancer, as well as medicine to minimize the nausea and vomiting that is often a side effect of chemotherapy. Lonnie and Mary Lynne believe their success is due to creating and nurturing team members who both achieve their professional potential and provide hope to patients and their families.