Honorary Leadership
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John W. Holaday, Ph.D.
CHAIRMAN EMERITUS (Deceased)
June 9, 1945 – October 4, 2019DisposeRx Chairman, Founder and CEO John Holaday, Ph.D., passed away on Friday, Oct. 4, as a result of injuries he suffered in a random shooting in Charlotte, NC, on September 30.
John, a resident of Bethesda, MD, was an innocent victim.
"Words cannot describe the immense sadness and grief we feel in losing our leader, mentor, colleague and friend," said DisposeRx President William Simpson. "While we will continue to struggle with the senseless and tragic way in which John died, we will honor him every day in the way that we operate and represent DisposeRx. We are more committed than ever to fulfilling his dreams."
John W. Holaday, Ph.D. Chairman Emeritus (Deceased) was Chairman, Founder and CEO of DisposeRx, Inc. Previously was co-founder of QRxPharma Limited (QRX-ASX), Medicis Pharmaceuticals (MRX-NYSE), EntreMed (ENMD-NASDAQ) and MaxCyte (MXCT.L) holding various positions as CEO and Chairman. Dr. Holaday served on the Board of Directors of Exosis, Pixspan and CytImmune Sciences. He obtained his BS and MS from the University of Alabama, and his PhD from the University of California, San Francisco School of Medicine. He was a Fellow in the American College of Neuropsychopharmacology (FACNP) and a Fellow in Critical Care Medicine (FCCM). Dr. Holaday served as officer and director of many professional and philanthropic organizations and societies. Prior experience included service at the Walter Reed Army Institute of Research as a Captain, US Army, and later as head of the Neuropharmacology Dept. Dr. Holaday was Adj. Professor of Anesthesiology and Critical Care Medicine at the Johns Hopkins University, and served as Adj. Professor of Psychiatry at the Uniformed Services University of the Health Sciences. He raised over $500M for his various companies. Dr. Holaday received numerous honors and awards, including being named to the E&Y Entrepreneur of the Year 2006 Hall of Fame. He holds over 90 patents and published over 230 scientific articles and five books.
Executive Leadership
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William Simpson
President and
Chief Executive OfficerWilliam Simpson (President) is a team-oriented business leader with a distinguished entrepreneurial career. As Director of Sales and Business Development of a global mission critical enterprise healthcare IT solutions company, Mr. Simpson was responsible for the company’s information and strategic planning requirements. When co-founding an integrated payment and records healthcare system, he developed the first financial services healthcare fiscal intermediary payment compliance tool in the nation. As Director of Business Development for a mobile patient/provider communications company with a focus on Chronic Care Management/MACRA and patient communication, Mr. Simpson was responsible for the company’s funding rounds, strategic relationships and product development, integrating new products with partnerships. As a senior company leader Simpson spearheading the patient value team where he oversaw future patient value product developments. Simpson is excited to bring his entrepreneurial passion and adaptive business style of blending relationship management with bottom-line day-to-day activities to the DisposeRx, Inc. team.
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Denis Connaghan
Chief Financial Officer
Denis Connaghan (Chief Operating Officer) brings experience in building and transitioning businesses through strong leadership and focus on customers, revenue and profit while ensuring scalability in US and international markets. Additionally, Mr. Connaghan has significant Board & C-Level experience with substantial commercialization experience across industry sectors including Healthcare, Life Sciences, Insurance and Information Technology.
Operations Team
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Ben Donaldson
Senior Vice President of Government Relations
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Carol Dorn Sanders, MA, FACHE
Senior Vice President of Marketing and Communications
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Pamela Roberts
SENIOR VICE PRESIDENT OF
BUSINESS DEVELOPMENT -
Ann Hamlin
Vice President of
Scientific Affairs -
Michele Bronson
Office Manager
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Edward Leahy, PharmD
Executive Director of
Commercial Operations -
Aaron Hawkins
Digital Marketing Manager
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Kevin Jennings
Director of Manufacturing