2021 CORPORATE RESPONSIBILITY REPORT I 40 Quest Diagnostics prioritizes diversity across the entire talent lifecycle. Our commitment to an inclusive culture and diverse workforce begins with our “CTC Framework,” developed in 2020. Our 3 pillars of Culture, Talent, and Communities ensure our approach is well balanced across our priorities. We support our employees throughout their careers at Quest, from onboarding, through performance, development, and career progression, and we identify opportunities for action. We celebrate the different ethnicities, ages, cultures, and lifestyles that make up our workforce. As the marketplace becomes increasingly global, our ability to meet the needs of all of our stakeholders is enhanced by our demonstrated commitment to diversity that mirrors the communities where we live and work every day. A STRONG FOUNDATION Creating opportunities for excellence Group Female Male Asian Black Hispanic Other people of color * All people of color White Executive/Senior Managers 42.6% 57.4% 13.0% 4.6% 3.8% 2.3% 23.7% 76.3% First/Mid-Level Managers & Professionals 60.9% 39.1% 14.4% 10.9% 8.7% 3.1% 37.1% 62.9% Technicians 81.9% 18.1% 15.9% 25.2% 19.2% 3.6% 63.9% 36.1% Sales 60.9% 39.1% 4.3% 8.1% 12.9% 1.5% 26.8% 73.2% All other roles 64.4% 35.6% 12.1% 26.2% 16.1% 3.4% 57.8% 42.2% Total 71.8% 28.2% 14.0% 22.8% 16.2% 3.5% 56.5% 43.5% Equal Employment Opportunity (EEO)-1 data *Other people of color/2 or more races • Data reflect our US employee population; 97.5% of Quest’s employee population is US-based • Data exclude employees who did not elect to disclose their race/ethnicity • The EEOC defines EEO-1 job categories based on employee skill level, knowledge, and responsibilities • Executive/Senior Managers include individuals who plan, direct, and formulate policies, set strategy, and provide the overall direction of the company • First-/Mid-Level Managers and Professionals include individuals who serve as managers, including those who oversee and direct the delivery of products, services, or functions at group, regional, or divisional levels of organizations • Technicians include jobs that require specific skills to be applied in the work environment; examples include medical technicians, engineering technicians, and technology professionals TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES “ We are committed to promoting an inclusive culture and strive to be a place where all employees feel supported and inspired to bring their whole selves to work. Bringing your authentic self to work helps create a sense of belonging, builds trust, and fosters a more collaborative environment.” Cecilia K. McKenney Senior Vice President and Chief Human Resources Officer