B. Sonny Bal, MD, JD, MBA
Chairman of the Board, Chief Executive Officer & President
Dr. Sonny Bal is Professor of Orthopaedic Surgery at the University of Missouri, Columbia, specializing in joint replacement surgery and ceramic bearings. He also is an Adjunct Professor of Material Sciences at the University of Missouri at Rolla. Dr. Bal is a member of the American Academy of Orthopaedic Surgeons, the American Association of Hip and Knee Surgeons, and the Association of Bone and Joint Surgeons. He is a life member of the International Society of Technology in Arthroplasty, and serves on the editorial board of several peer-refereed orthopaedic journals. He has published extensively on the biomedical applications of silicon nitride ceramics, and continues that work, with presentations at scientific forums worldwide.
Dr. Bal received his M.D. from Cornell University, an M.B.A. from Northwestern University, a J.D. degree from the University of Missouri, and achieved fellowship in joint replacement at Harvard University. He is also a licensed attorney who co-founded the BalBrenner law firm in North Carolina.
Chief Commercial Officer
Chris Whitfield serves Amedica as Chief Commercial Officer. Mr. Whitfield came to Amedica in November of 2013 with over 17 years of commercial experience in the medical device sector. Prior to joining Amedica, he held the position of Executive Vice President of Sales and Marketing for Pioneer Surgical (now RTI Surgical). Chris has also served in senior Sales Management and Marketing roles for Zimmer Spine (formerly Abbott Spine/Spinal Concepts). He began his career as a Field Sales Representative with AcroMed (now Depuy/Synthes Spine) and Medtronic Sofamor Danek. Chris graduated from The University of Texas at Austin with a BBA in Marketing.
Bryan J. McEntire
Chief Technology Officer
Bryan J. McEntire has served as Vice President of Manufacturing since August 2004 and as our Vice President of Research since December 2006. Mr. McEntire has more than 30 years of experience in advanced ceramic product development, quality engineering and manufacturing.
Prior to joining AMEDICA, Mr. McEntire served as a Senior Director of Supply Chain Management at Applied Materials in Silicon Valley from April 1998 to August 2004, where he managed a portion of the supply chain. This segment included the negotiation of supply contracts and supervision of vendor production of various parts, including precision ceramic components, which were integrated into the capital equipment made and sold by Applied Materials.
Prior to joining Applied Materials, he was General Manager of Norton Advanced Ceramics, a division of Saint-Gobain Industrial Ceramics Corporation, from 1993 to 1998. Here, he managed four ceramic product manufacturing plants in the United States, including the largest US-based production facility for precision Silicon Nitride bearing components.
From 1987 to 1993, Mr. McEntire served in various positions for a joint-venture between Norton Company and TRW, Inc., including Vice President and Technical Director. The purpose of this joint- venture was to explore the use of Silicon Nitride-based ceramics in automotive and turbine engine applications. During his tenure with the joint-venture, Mr. McEntire managed several multi-million dollar R&D contracts for the U.S. Department of Energy.
From 1978 to 1987, Mr. McEntire was successively promoted from Manager of Ceramic Production and Development to Plant Manager for Ceramatec, Inc., a small innovative producer of ionic-conducting and structural ceramic components in Salt Lake City, UT.
Mr. McEntire holds B.S. and M.B.A. degrees in Materials Science and Engineering, and Operations Management, respectively, both from the University of Utah. He is an author or co-author of over 30 technical papers on ceramic materials, processing and characterization, and served as an invited short- course lecturer on Forming of Ceramics at the Annual Meeting of the American Ceramic Society from 1986 to 1995.
Vice President Finance and Principal Accounting Officer
Ty Lombardi joined Amedica in March 2014 as our Director of Finance, and was appointed to serve as the Vice President Finance and Principal Accounting Officer in January 2015. Prior to joining Amedica, Mr. Lombardi was part owner of Cadence Consulting Corporation, where he served as principal consultant from January 2006 to March 2014 and provided a wide range of financial and accounting services. Mr. Lombardi is a Certified Public Accountant and has a M.S. in Accounting from Brigham Young University.
Vice President, Marketing
Vytas Rupinskas is the Vice President of Marketing for Amedica, a position he has held since January 2013.
In this position Mr. Rupinskas has global marketing responsibility for all of Amedica’s products.
Mr. Rupinskas brings more than twenty five years of experience in the orthopedic, spinal and neuromodulation medical device markets. Most recently, he was the Director of Product Management for Leads & Accessories for the Neuromodulation division of St Jude Medical. Previously, he held various senior global marketing and international sales management positions at DePuy Orthopedics, DePuy International and DePuy Spine.
Mr. Rupinskas is a graduate of the University of Illinois with a Bachelor of Science degree in Liberal Arts and Sciences (Chicago) and a Master of Science degree in Mechanical Engineering (Champaign-Urbana).