Xtant Medical

Management Team

Sean Browne

Chief Executive Officer

Mr. Browne has over three decades of expertise in the medical device and healthcare industry. Most recently, he served as Chief Revenue Officer of CCS Medical, Inc., a provider of home delivery medical supplies. Previously, Mr. Browne served as Chief Operating Officer of The Kini Group, an integrated cloud-based software analytics and advisory firm; President and Chief Executive Officer and a director of Neuro Resource Group, a venture start-up medical device company that was sold to a strategic buyer; President, Miltex Surgical Instrument Division for Integra LifeSciences Corporation, a publicly held medical device company that acquired Miltex Holdings, Inc.; Vice President, Sales and Marketing of Esurg.com, an e-commerce company serving physician and ambulatory surgery markets; Senior Vice President, Health Systems Division of McKesson Corporation; and held various positions with increasing responsibility at Baxter Healthcare. Mr. Browne holds a Masters of Business Administration from the Kellogg School of Management at Northwestern University and a Bachelor of Science degree, with a major in Finance and minor in Statistics, from Boston University.

Kevin Brandt

Sr. Vice President and Chief Commercialization Officer

Mr. Brandt brings to Xtant more than 28 years of experience in the medical device industry. As the former executive vice president and chief commercial officer of RTI Surgical, Inc.’s domestic direct business, Brandt led all domestic direct lines of business and R&D for a global surgical implant company marketing biologic, medical and synthetic implants. Prior to joining RTI Surgical in 2012, Brandt spent 18 years at Stryker Corporation from 1994-2012 in various senior commercial leadership positions. Most notably, while at Stryker he served as President of Osteokinetics from 2002-2012 as one of their largest distributors and prior to that he was Senior Director of US Spine sales from 2000-2001 responsible for creating and leading Stryker’s US Spine sales organization.

Scott Neils

Chief Financial Officer

Mr. Neils has 15 years of experience focused on public accounting and corporate finance and previously served as the Company’s Controller since August 2019. In this role, Mr. Neils gained extensive experience managing the Company’s finance and accounting functions. Prior to joining Xtant Medical, Mr. Neils served as Audit Senior Manager at Baker Tilly US, LLP (formerly Baker Tilly Virchow Krause, LLP), an advisory, tax, and assurance firm, from November 2015 to August 2019. Prior to that position, Mr. Neils was at Grant Thornton LLP, an accounting and advisory organization, from September 2007 to November 2015, most recently as Audit Manager. Mr. Neils is a Certified Public Accountant. He holds a Bachelor of Science in Business in Accounting and a Master of Accountancy from the Carlson School of Management at the University of Minnesota.

Mark Schallenberger

Chief Operations Officer

Mr. Schallenberger, has deep experience in orthobiologics. Prior to joining Xtant Medical, Mr. Schallenberger served as Chief Operations Officer of Surgenex LLC, a medical technology manufacturer, from June 2019 to January 2023. Prior to Surgenex, Mr. Schallenberger served as Senior Director of Marketing & Product Development of DCI Donor Services Tissue Bank, a tissue bank, from February 2016 to June 2019. Prior to DCI Donor Services Tissue Bank, Mr. Schallenberger served in various roles with increasing responsibility from September 2010 to February 2016 culminating with Director of Scientific Affairs with Xtant Medical Holdings, Inc. formerly Bacterin International Holdings, Inc. Mr. Schallenberger holds a Master of Science in Chemical Biology from The Scripps Research Institute and a Bachelor of Science degree in Chemistry from the University of Montana.