Executive Leadership

Matt Gantz

Matthew Gantz
President and Chief Executive Officer

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Mary Spellman, M.D., F.A.A.D.
Chief Medical Officer

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John Maslowski
Chief Operating Officer

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Brad Middlekauff  
Chief Legal Officer

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Gregory MacMichael, Ph.D.
Chief Technology Officer

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Greg Wujek
Chief Commercial Officer

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Senior Leadership

Andrea Kistner
Vice President, Finance

Jeff Hesselberg
Vice President, Regulatory and Quality Affairs

Tim Mitchell
Vice President, CMC Quality

Thomas J. Lauterio, Ph.D.
Vice President, Medical Affairs

Edward Russell
Senior Director, Human Resources

Jeremy Cress
Senior Director, Manufacturing Operations

Robin Blumenthal, Ph.D.
Senior Director, Clinical Operations

Anthonius Kley
Facilities Director

Kelli Wightman
Director of Quality

Pamela Larsen
Director, Regulatory Operations

Tymissha Jackson, RAC
Director, Regulatory Affairs

Jeff Aronin
Castle Creek Biosciences Founder and Chairman
Paragon Biosciences Founder, Chairman and CEO

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