2021 CORPORATE RESPONSIBILITY REPORT I 7 2021 highlights 63M COVID-19 molecular and antibody tests performed since the pandemic began ~218M test requisitions processed (an increase of >30M from last year) 1 2 1 new tests added 102 peer-reviewed publications by authors from Quest and affiliates 8 1 abstracts and national meeting presentations ~1 , 100 issued and 450 pending patents owned or controlled by Quest worldwide $15M+ in corporate giving and Quest for Health Equity grants 2 7 ,000+ employee volunteer hours ~800,000 donated or discounted test requisitions $475,000 in matching funds to 600+ nonprofits $ 268,000 extended to over 300 employees via the Employee Relief Fund Nearly 50,000 colleagues globally * Over 13,000 new employees welcomed to the Quest team Over 5,000 employees promoted and advancing their careers at Quest 71% of employees globally identify as female and 29% identify as male 56% of US employees identify as people of color, representing more diversity than in the US workforce as a whole 650+ MDs and PhDs on medical and scientific staff 10 Employee Business Networks (EBNs) with 7,000+ memberships 7 , 100+ patient access points across the US 2 , 100+ of our own patient service centers ~ 230 retail testing services locations at select Walmart and Safeway locations nationwide More than 21 .5M users registered for MyQuest ® —an increase of nearly 7 million, or ~50%, in 1 year 75,000+ courier stops daily 20+ aircraft serving the US Testing Services Consumer Reach Community Impact Employees Thought Leadership New flagship automated lab opened in Clifton, NJ *Less than 1% of our employees are represented by a union. TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES