Effective as of September 13, 2021, the Board of Directors of Medifast, Inc. appointed Jonathan B. MacKenzie to serve as Chief Accounting Officer of the Company. Mr. MacKenzie succeeds James P. Maloney, who will cease to serve as the Company’s Interim Chief Accounting Officer upon the effectiveness of Mr. MacKenzie’s employment. Mr. Maloney will continue to serve as the Company’s Chief Financial Officer. Prior to joining the Company, Mr. MacKenzie was a Managing Director with PricewaterhouseCoopers LLP in the Risk Assurance practice. From 2006 to 2014, he was a Managing Director with Navigant Consulting, Inc.
Medifast, Inc. is a health and wellness company. The Company provides a habit-based and coach-guided lifestyle solution OPTAVIA, which provides people with a comprehensive approach to help them achieve lasting optimal health and wellbeing. OPTAVIA's lifestyle plans deliver clinically proven health benefits as well as evidence-based tools, including scientifically developed products and a framework for habit creation reinforced by independent coaches and community support. Through a collaboration with the virtual primary care provider LifeMD, Inc (LifeMD), OPTAVIA customers have access to board-certified affiliated clinicians and medications, such as GLP-1s, that support treatment plans for obesity and other health conditions. OPTAVIA Coaches introduce customers to a set of healthy habits, and offer OPTAVIA-branded products, including Fuelings as well as OPTAVIA ACTIVE, a line of essential amino acid supplements and protein powders. Its operations are conducted through its subsidiaries.
MEDIFAST, INC. 
