2021 CORPORATE RESPONSIBILITY REPORT I 15 Highlights of our COVID-19 response Received 21 new and amended Emergency Use Authorizations from the FDA during 2020 and 2021 Engaged in public/ private collaboration with NY Forward Rapid Test Program, providing low-cost, rapid testing throughout New York City’s 5 boroughs Worked with the Presidential Inauguration Committee to test 7,200 dignitaries, attendees, and staff Logged nearly 40M courier stops over 2 years to transport COVID-19 specimens, covering over 230M miles Performed 63M COVID-19 molecular and antibody tests since 2020 * Expanded our engagement with the CDC to provide genomic sequencing of emerging COVID-19 variants * Per Quest's 2021 Form 10-K TABLE OF CONTENTS 2021 OVERVIEW COVID-19 RESPONSE PROMOTING A HEALTHIER WORLD CREATING AN INSPIRING WORKPLACE BUILDING VALUE REFERENCES