Anthony A. DiTonno has served as CEO since 2018 and as a director since December 2011. From 2013 until filling the role as Tenax CEO, Mr. DiTonno served as Chief Executive Officer of Avantis Medical Systems, Inc., a medical device company that develops and manufactures catheter-based endoscopic devices. From April 2003 until December 2011, Mr. DiTonno was President and Chief Executive Officer of Neurogesx Inc., a biopharmaceutical company based in the San Francisco Bay area (“Neurogesx”). During his time at Neurogesx, Mr. DiTonno also served on its board of directors. Mr. DiTonno has funded companies through a variety of financial arrangements including private and public financings, partnerships and debt. He has also been successful in gaining regulatory approvals in both the United States and European Union. Previously, he was Executive Vice President of Marketing and Sales at Enteric Medical Technologies Inc., which was acquired by Boston Scientific Company; President and Chief Executive Officer of Lifesleep Systems, Inc.; and Vice President and General Manager of Olcassen Pharmaceuticals, which was sold to Watson Laboratories. Early in his career, he held a variety of positions of increasing responsibility at Rorer Group, Inc. (Rhône Poulenc Rorer) and Wyeth Laboratories. Mr. DiTonno received an M.B.A. from Drexel University and a B.S. in Business Administration from St. Joseph’s University.

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