New Source Competitors

UnitedHealth Group is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone. We are 340,000 colleagues in two distinct and complementary businesses working to help build a modern, high-performing health system through improved access, affordability, outcomes and experiences. Optum delivers care aided by technology and data, empowering people, partners and providers with the guidance and tools they need to achieve better health. UnitedHealthcare offers a full range of health benefits, enabling affordable coverage, simplifying the health care experience and delivering access to high-quality care. We work with governments, employers, partners and providers to care for 147 million people and share a vision of a value-based system of care that provides compassionate and equitable care. At UnitedHealth Group, our mission calls us, our values guide us and our diverse culture connects us as we seek to improve care for the consumers we are privileged to serve and their communities. Click below to search careers or join our social communities: • Search & apply for careers at careers.unitedhealthgroup.com/ • Follow us on Twitter at twitter.com/UnitedHealthGrp • Follow and like us on Facebook at facebook.com/unitedhealthgroup • Follow us on Instagram at instagram.com/unitedhealthgroup More about UnitedHealth Group can be found at unitedhealthgroup.com/

Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Quest annually serves one in three adult Americans and half the physicians and hospitals in the United States, and our 47,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives. The company offers physicians the broadest test menu (3,000+ tests), is a pioneer in developing innovative new tests, is the leader in cancer diagnostics, provides anatomic pathology (AP) services, & interpretive consultation through its medical & scientific staff of about 900 M.D.s & Ph.D.s. The company reported 2020 revenues of $9.44 billion. Quest Diagnostics offers the most extensive clinical testing network in the U.S., with laboratories in most major metropolitan areas, & in Mexico, the UK & India. The company also operates four esoteric laboratories, 40 outpatient AP laboratories, & 160 smaller, rapid-response laboratories. Patients may have specimens collected in any of the company’s approximately 2,250 patient service centers. On a typical workday, testing is performed for about 550,000 patients. Quest Diagnostics empowers healthcare organizations & clinicians with state-of-the-art connectivity solutions. The company is the leading provider of pre-employment drugs-of-abuse screening for employers & risk assessment services for the life insurance industry. It is the world’s 2nd largest provider of clinical trials testing for new pharmaceuticals. More information is available at www.questdiagnostics.com. Language Assistance / Non-Discrimination Notice Asistencia de Idiomas / Aviso de no Discriminación 語言協助 / 不歧視通知 www.QuestDiagnostics.com/home/nondiscrimination

Clear and confident health care decisions begin with questions. At Labcorp, we’re constantly in pursuit of answers. As a global leader of innovative and comprehensive laboratory services, we help doctors, hospitals, pharmaceutical companies, researchers and patients make clear and confident decisions. We provide insights and advance science to improve health and improve lives through our unparalleled diagnostics and drug development laboratory capabilities. Our more than 60,000 employees serve clients in over 100 countries, worked on over 80% of the new drugs approved by the FDA in 2022 and performed more than 600 million tests for patients around the world. Learn more about Labcorp (NYSE: LH) at www.labcorp.com.