AON 10-K Fiscal year ended Dec. 31, 2014

Experience Highlights: Mr. Fujimori currently serves as Senior Executive Advisor of Japan to CVC Capital Partners, a position he has held since February 2017. He was an advisor to the LIXIL Group Corporation from June 2016 to December 2019 and was the President and Chief Executive Officer of the LIXIL Group Corporation from August 2011 to June 2016. Prior to joining LIXIL, he was Chairman, President and Chief Executive Officer of General Electric Japan from January 2008 to June 2011. In his 25 years at General Electric Company, beginning in October 1986, he held a variety of positions including Senior Vice President and Chief Executive Officer of a number of Asian and global business divisions, including Medical Systems, Plastics, and Capital. Mr. Fujimori also served as a member of the General Electric’s Corporate Executive Council from 2001 to 2010. He formerly served as a director of Shiseido Company Limited, Toshiba Corporation, Japan Construction Material & Housing Equipment Industries Federation and Tokyo Electric Power Company Holdings. Mr. Fujimori is currently a director of Blaize, Inc., Oracle Corporation, Japan and Takeda Pharmaceutical Company Limited. Mr. Fujimori received an MBA from Carnegie Mellon Graduate School of Business and a BA in petroleum engineering from the Tokyo University of Science. Select Skills and Qualifications: Mr. Fujimori’s qualifications to serve on our Board include his expertise in international business, including developing markets, with a particular emphasis on operations and manufacturing in Japan and Asia, technology, and his service on other public company boards.

Experience Highlights: Ms. Morano is the former Vice President Business Development and Strategic Operations, Johnson & Johnson Medtech, having served in that position from 2020 through February 2023. Prior to this role, she served as Vice President Business Development, Johnson & Johnson Medical Devices, beginning in 2012, with responsibility for licensing, acquisitions and divestitures for its Medical Devices Group. In addition, during her time at Johnson & Johnson, Ms. Morano held a number of positions with increasing responsibility through six operating companies, primarily within Finance and Business Development, and is a former member of its MedTech Leadership Team. Ms. Morano received an MBA from Columbia University and a BA from Villanova University. Select Skills and Qualifications: Ms. Morano’s qualifications to serve on the Board include her executive experience in the medtech industry, specifically extensive experience in global mergers and acquisitions, management and business strategy, in addition to her financial expertise.

Experience Highlights: Michael F. Mahoney joined the Company as our President in October 2011 and became our President, Chief Executive Officer and a Director in November 2012. Mr. Mahoney became our Chairman of the Board in May 2016. Prior to joining the Company, he was Worldwide Chairman of the Medical Devices and Diagnostics division of Johnson & Johnson from January 2011 to September 2011, overseeing 50,000 employees and seven franchises. Prior to assuming this position, Mr. Mahoney served as Worldwide Group Chairman of Johnson & Johnson’s DePuy franchise, an orthopedics and neurosciences business, from April 2007 through January 2011. From January 2001 through March 2007, Mr. Mahoney served as President and Chief Executive Officer of Global Healthcare Exchange, a provider of supply chain solutions and services that brings together hospitals, manufacturers, distributors and group purchasing organizations. From 2015 to 2023, Mr. Mahoney served as a member of the board of directors of Baxter International Inc., a multinational health care company, and is currently a director of CVS Health Corporation. Mr. Mahoney began his career at General Electric Medical Systems, where he spent 12 years, culminating in the role of General Manager of the Healthcare Information Technology business. Mr. Mahoney also serves on the board of the Boys & Girls Club of Boston, is the Chair of the board of governors of Boston College CEO Club, and a member of the American Heart Association CEO roundtable. Mr. Mahoney received an MBA from Wake Forest University and a BA in finance from the University of Iowa. Select Skills and Qualifications: In addition to serving as our President and Chief Executive Officer, Mr. Mahoney’s qualifications to serve on our Board, include his management experience leading complex global organizations in medical device and other healthcare-related businesses, expertise in building strong leadership teams, developing international markets, and a proven ability to execute successful business strategies and drive operational excellence.

Experience Highlights: Michael F. Mahoney joined the Company as our President in October 2011 and became our President, Chief Executive Officer and a Director in November 2012. Mr. Mahoney became our Chairman of the Board in May 2016. Prior to joining the Company, he was Worldwide Chairman of the Medical Devices and Diagnostics division of Johnson & Johnson from January 2011 to September 2011, overseeing 50,000 employees and seven franchises. Prior to assuming this position, Mr. Mahoney served as Worldwide Group Chairman of Johnson & Johnson’s DePuy franchise, an orthopedics and neurosciences business, from April 2007 through January 2011. From January 2001 through March 2007, Mr. Mahoney served as President and Chief Executive Officer of Global Healthcare Exchange, a provider of supply chain solutions and services that brings together hospitals, manufacturers, distributors and group purchasing organizations. From 2015 to 2023, Mr. Mahoney served as a member of the board of directors of Baxter International Inc., a multinational health care company, and is currently a director of CVS Health Corporation. Mr. Mahoney began his career at General Electric Medical Systems, where he spent 12 years, culminating in the role of General Manager of the Healthcare Information Technology business. Mr. Mahoney also serves on the board of the Boys & Girls Club of Boston, is the Chair of the board of governors of Boston College CEO Club, and a member of the American Heart Association CEO roundtable. Mr. Mahoney received an MBA from Wake Forest University and a BA in finance from the University of Iowa. Select Skills and Qualifications: In addition to serving as our President and Chief Executive Officer, Mr. Mahoney’s qualifications to serve on our Board, include his management experience leading complex global organizations in medical device and other healthcare-related businesses, expertise in building strong leadership teams, developing international markets, and a proven ability to execute successful business strategies and drive operational excellence.

Experience Highlights: Dr. Mega is a leader at the intersection of technology, life sciences and healthcare. She co-founded Verily Life Sciences, LLC, a subsidiary of Alphabet Inc. focused on life sciences and healthcare, and served as Chief Medical and Scientific Officer from 2015 to January 2023. At Verily, Dr. Mega oversaw Verily’s clinical and science efforts, focusing on translating technological innovations and scientific insights into partnerships and programs that improve patient outcomes. Prior to Verily, she served as a Cardiologist and Senior Investigator at Brigham and Women’s Hospital from 2008 to 2015. Dr. Mega has also served as a faculty member at Harvard Medical School and with the TIMI Study Group, where she led large-scale international clinical trials evaluating novel cardiovascular therapies and directed the genetics program. Dr. Mega is currently a director of Danaher Corporation and is on the Board of Advisors at the Duke-Margolis Center for Health Policy, Stanford’s Center for Digital Health and Research!America. Dr. Mega received an MD from Yale University School of Medicine, an MPH from Harvard School of Public Health and a BA from Stanford University. Select Skills and Qualifications: Dr. Mega’s qualifications to serve on the Board include her clinical background and executive experience in life sciences, technology, and global business strategy, specifically her service as a director and executive and her background in academia and public policy.

Experience Highlights: Michael F. Mahoney joined the Company as our President in October 2011 and became our President, Chief Executive Officer and a Director in November 2012. Mr. Mahoney became our Chairman of the Board in May 2016. Prior to joining the Company, he was Worldwide Chairman of the Medical Devices and Diagnostics division of Johnson & Johnson from January 2011 to September 2011, overseeing 50,000 employees and seven franchises. Prior to assuming this position, Mr. Mahoney served as Worldwide Group Chairman of Johnson & Johnson’s DePuy franchise, an orthopedics and neurosciences business, from April 2007 through January 2011. From January 2001 through March 2007, Mr. Mahoney served as President and Chief Executive Officer of Global Healthcare Exchange, a provider of supply chain solutions and services that brings together hospitals, manufacturers, distributors and group purchasing organizations. From 2015 to 2023, Mr. Mahoney served as a member of the board of directors of Baxter International Inc., a multinational health care company, and is currently a director of CVS Health Corporation. Mr. Mahoney began his career at General Electric Medical Systems, where he spent 12 years, culminating in the role of General Manager of the Healthcare Information Technology business. Mr. Mahoney also serves on the board of the Boys & Girls Club of Boston, is the Chair of the board of governors of Boston College CEO Club, and a member of the American Heart Association CEO roundtable. Mr. Mahoney received an MBA from Wake Forest University and a BA in finance from the University of Iowa. Select Skills and Qualifications: In addition to serving as our President and Chief Executive Officer, Mr. Mahoney’s qualifications to serve on our Board, include his management experience leading complex global organizations in medical device and other healthcare-related businesses, expertise in building strong leadership teams, developing international markets, and a proven ability to execute successful business strategies and drive operational excellence.

Experience Highlights: Mr. Ludwig is the former Chairman of the Board of Becton, Dickinson and Company (BDX), a global medical technology company, having served in that position from February 2002 through June 2012. He also served as BDX’s Chief Executive Officer from January 2000 to September 2011 and as its President from May 1999 to December 2008. Mr. Ludwig joined BDX as a senior financial analyst in 1979. Prior to joining BDX, Mr. Ludwig served as a senior auditor with Coopers and Lybrand (now PricewaterhouseCoopers), where he earned his CPA, and as a financial and strategic analyst at Kidde, Inc. Mr. Ludwig was a member of the board of directors of POCARED Diagnostics Ltd, a privately held company focused on infectious disease diagnostics from 2013 to 2022. He formerly served as a director of CVS Health Corporation, Aetna, Inc., Xylem, Inc. and as Vice Chair of the board of trustees of the Hackensack University Medical Center Network. Mr. Ludwig received an MBA from Columbia University and a BA in economics and accounting from The College of Holy Cross. Select Skills and Qualifications: Mr. Ludwig’s qualifications to serve on our Board include his executive leadership experience, specifically his service as a director and executive of a public medical technology company, along with his extensive expertise in business strategy, finance, management and manufacturing.

Experience Highlights: Mr. Wichmann is the Co-Founder of Jory Capital and former Chief Executive Officer of UnitedHealth Group Incorporated, having served in that position from September 2017 through March 2021. Prior to this role, he served as President, UnitedHealth Group, beginning in November 2014, with oversight responsibility for all of UnitedHealthcare’s domestic and international businesses, and for overall UnitedHealth Group performance, and as Chief Financial Officer of the UnitedHealth Group from 2011 until 2016. In addition, during his time at UnitedHealth Group, he held positions as President, UnitedHealthcare; President and Chief Executive Officer, Specialized Care Services (now OptumHealth); and Senior Vice President, Corporate Development. Prior to joining UnitedHealth Group, Mr. Wichmann was a partner at Arthur Andersen & Co. and Chief Financial Officer of Advanced Machine Company. He is currently a director of Privia Health Group, Inc. and serves on the boards of certain privately held companies where Jory Capital currently maintains an investment. Mr. Wichmann previously served on the board of directors of UnitedHealth Group Incorporated and Tennant Company. Mr. Wichmann received a BS in accounting from Illinois State University. Select Skills and Qualifications: Mr. Wichmann’s qualifications to serve on our Board include his executive experience in the healthcare industry as the chief executive officer of a large public health and well-being company and a current and former board member of other public companies, as well as his financial expertise and background in business strategy, operations, manufacturing, technology and environmental, health, safety and sustainability matters.

Experience Highlights: Mr. Habiger is the President and Chief Executive Officer of J.D. Power, a market research and data analytics company. Prior to joining J.D. Power as its CEO in March 2018, he founded and was partner of Silicon Media Partners beginning in January 2016, served as a senior advisor at Silver Lake Partners, a private equity firm, from October 2013 to October 2020, and was a venture partner at Prizker Group, a venture capital firm, from January 2013 to October 2019. Mr. Habiger served as Chief Executive Officer of Textura Corporation through its sale to Oracle in June of 2016 and served as the Chief Executive Officer of NDS through its sale to Cisco in July 2012. Earlier in his career, he held positions of increasing responsibility at Sonic Solutions, including serving as its Chief Executive Officer through its sale to Rovi Corporation in early 2011. Mr. Habiger is a director on the Chicago Federal Reserve Board where he serves on the Governance, Human Resources and SABOR (Systems Activities, Bank Operations and Risk) Committees. He is also a director of several public and private boards, including EnerSys, a global industrial battery manufacturing company, Reddit, Inc., a social media and software company, and Xperi Inc., a consumer and entertainment licensing company, and a member of the board of trustees at Rush University Medical Center. Mr. Habiger received an MBA from The University of Chicago and a BA in business administration from St. Norbert College. Select Skills and Qualifications: Mr. Habiger’s qualifications to serve on our Board include his executive leadership experience in technology and data analytics, along with deep expertise in governance, risk management, and corporate strategy.

Experience Highlights: Dr. Pegus recently served as a partner at Morgan Health, where, from November 2022 to May 2024, she supported the organization’s strategic investments and broader efforts to improve the quality and affordability of employer-sponsored health care. Dr. Pegus is president of Caluent, LLC, a healthcare analytics and advisory company she has owned since 2012. Dr. Pegus previously served as executive vice president of Health & Wellness for Walmart from December 2020 through March 2023, where she led the company’s health care businesses and served as a senior advisor. Prior to that, Dr. Pegus served as chief medical officer and president of Consumer Health Solutions for Cambia Health Solutions from September 2018 to December 2020. Dr. Pegus also served as the first chief medical officer of Walgreens from 2010 to 2013, and from 2007 to 2010, as general manager and chief medical officer of SymCare Personalized Health Solutions, Inc., a diabetes-focused division of Johnson & Johnson. Prior to that, Dr. Pegus served as a medical director at Aetna and Pfizer. She began her career in private practice as a cardiologist. Dr. Pegus is currently a member of the board of directors of Concentra, a provider of occupational health services. Dr. Pegus is co-founder of A New Beat, an organization focused on advancing cardiovascular health and supporting the career growth of emerging leaders in the field of cardiology, and currently serves on the boards of private organizations, including the American Heart Association. Dr. Pegus previously served as a director of several public companies, including Phreesia, Inc., Tactile Systems Technology, Inc. and Cogentix Medical, Inc. Dr. Pegus received an MD from Weill Cornell Medical College, an MPH from Columbia University Mailman School of Public Health, and a BA from Brandeis University. Select Skills and Qualifications: Dr. Pegus’s qualifications to serve on the Board include her executive leadership experience in healthcare, extensive expertise in public health policy, clinical care and business strategy, along with a proven track record of advancing healthcare quality and affordability across diverse organizations.

Each member of the committee meets the independence requirements of the NYSE and the SEC. The Board has also determined that each of Ms. Morano and Messrs. Wichmann, Dockendorff, Habiger and Sununu, is an “audit committee financial expert” as that term is defined in the rules and regulations of the SEC. Functions: As outlined in its written charter, the primary purpose of the Audit Committee is to provide oversight of our accounting and financial reporting processes and audits of our financial statements, as well as of our global compliance program, including matters related to compliance with financial, legal and regulatory requirements. The Audit Committee has responsibility to, among other things: • provide assistance to our Board in the areas of corporate accounting, internal control, independent audit and reporting practices; • maintain, by way of regularly scheduled meetings, a direct line of communication among our directors, management, our internal auditors and our independent registered public accounting firm; • appoint our independent registered public accounting firm, evaluate its qualifications, independence and performance, and review its reports and other services, and has the right to terminate our independent registered public accounting firm; • pre-approve audit, audit-related and non-audit services performed for us by our independent registered public accounting firm; and • assist the Board in its oversight of financial, legal and regulatory compliance, including financial reporting, internal controls and financial risk exposure to the Company resulting from legal and regulatory compliance matters, and all other areas of compliance. The Audit Committee Report can be found on page 107 of this Proxy Statement.