Alphatec Holdings, Inc. announced that Terry Rich has resigned as President, Chief Operating Officer, and as a member of the company's Board of Directors. Jeff Rydin, a member of the ATEC Board, will assume interim leadership of the Company’s sales organization, while Chief Executive Officer Pat Miles will assume Rich’s operations responsibilities in a combined role as President and CEO. In conjunction with Rich’s departure, Rydin, a member of ATEC’s Board of Directors, will assume interim leadership of the ATEC sales organization, furthering its transition and advancing relationships in the distribution channel.