Corporate Officers

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Steven H. Collis
Chairman, President and Chief Executive Officer
Steven H. Collis
Chairman, President and Chief Executive Officer


Mr. Collis was elected Chairman of the Board in March 2016 and has been President and Chief Executive Officer of AmerisourceBergen Corporation since July 2011. He served as President and Chief Operating Officer of AmerisourceBergen from November 2010 to July 2011. He served as Executive Vice President and President of AmerisourceBergen Drug Corporation from September 2009 to November 2010. He was Executive Vice President and President of AmerisourceBergen Specialty Group from September 2007 t... 

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Tim G. Guttman
Executive Vice President and Chief Financial Officer
Tim G. Guttman
Executive Vice President and Chief Financial Officer


Tim G. Guttman is Executive Vice President and Chief Financial Officer of AmerisourceBergen. Prior to being named to his current role in 2012, he was Vice President and Corporate Controller since joining the Company in 2002.

Prior to joining AmerisourceBergen, Guttman was Vice President of Finance at Syncor International Corporation, and also previously held financial planning and managerial positions at Disney Consumer Products, Pizza Hut, Inc., and PepsiCo, Inc. He also spent s... 

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John G.  Chou
Executive Vice President and General Counsel
John G.  Chou
Executive Vice President and General Counsel


John G. Chou is Executive Vice President and General Counsel of AmerisourceBergen Corporation. Prior to being named to his current position in January 2007, he was Vice President, Deputy General Counsel and Secretary of the Company. Mr. Chou joined AmerisourceBergen in July 2002. Prior to joining AmerisourceBergen, he was a partner with the law firm of Eckert Seamans Cherin & Mellott. Mr. Chou has been practicing law for over 20 years and previously held senior legal positions with CIGNA Corpo... 
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Gina K. Clark
Executive Vice President and Chief Marketing Officer
Gina K. Clark
Executive Vice President and Chief Marketing Officer


Gina Clark is Executive Vice President and Chief Marketing Officer for AmerisourceBergen Corp., where she leads strategic marketing and integrated branding initiatives across the company and its business units. Ms. Clark brings more than 25 years of healthcare industry experience to this role. She previously served as Senior Vice President of Marketing and Business Development for AmerisourceBergen Specialty Group, the specialty pharmaceutical services arm of AmerisourceBergen Corp. Prior to ... 

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James F. Cleary, Jr.
Executive Vice President & President, AmerisourceBergen Animal Health
James F. Cleary, Jr.
Executive Vice President & President, AmerisourceBergen Animal Health


Jim Cleary is EVP & President, AmerisourceBergen Animal Health. Cleary most recently served as President and Chief Executive Officer of MWI Veterinary Supply Inc., until the company’s acquisition by AmerisourceBergen in February 2015. He joined MWI as Director of National Accounts and was promoted to Vice President of Demand Generation. Cleary was Vice President of Agri Beef Co., MWI's former parent. Prior to that, he was employed in management positions with Morrison Knudsen Corporation... 

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Dale Danilewitz
Executive Vice President and Chief Information Officer
Dale Danilewitz
Executive Vice President and Chief Information Officer


Dale Danilewitz is Executive Vice President and Chief Information Officer of AmerisourceBergen. Prior to being named to his current role in 2012, he was Chief Information Officer of AmerisourceBergen Specialty Group. Dale joined the company in 1999 as Vice President of Information Technology. Prior to joining AmerisourceBergen he held other management positions with American Airlines and The Sabre Group. He also worked for Whirlpool Corporation and ran the Advanced Technology Group. He holds a ... 
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James  Frary
Executive Vice President and President, AmerisourceBergen Specialty Group
James  Frary
Executive Vice President and President, AmerisourceBergen Specialty Group


James Frary is Executive Vice President and President, AmerisourceBergen Specialty Group (ABSG). Through his role, Mr. Frary assumes strategic and operational responsibility for the Company's business units, in addition to collaborating across AmerisourceBergen to serve customers more effectively.

Prior to this role, he was Regional Vice President – East Region for AmerisourceBergen Drug Corporation (ABDC). Previously, James spent more than a decade in leadership positions at a gl... 

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Kathy H. Gaddes
Executive Vice President and Chief Human Resources Officer
Kathy H. Gaddes
Executive Vice President and Chief Human Resources Officer


Kathy Gaddes assumed the role of Executive Vice President and Chief Human Resources Officer in April 2016. Prior to being named to her current position, Ms. Gaddes was Vice President, Group General Counsel and Secretary for AmerisourceBergen Corporation since 2012. Ms. Gaddes joined AmerisourceBergen in 2011 as Assistant General Counsel, Corporate and Securities. She has extensive experience in governance, securities, finance and corporate matters. Ms. Gaddes previously served as a lecturer-... 

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Peyton  Howell
Executive Vice President and President, Global Sourcing & Manufacturer Relations
Peyton  Howell
Executive Vice President and President, Global Sourcing & Manufacturer Relations


Peyton Howell is Executive Vice President and President, Global Sourcing and Manufacturer Relations for AmerisourceBergen, where she leads manufacturer strategy and sourcing including brand, generic, specialty and consumer product purchasing of nearly $100 Billion. Her team coordinates all manufacturer relationships to drive for shared value and growth. As part of this role, she is also leading the creation of AmerisourceBergen Global Manufacturer Services GmbH in Bern, Switzerland which ... 

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Robert P. Mauch
Executive Vice President and President, AmerisourceBergen Drug Corporation
Robert P. Mauch
Executive Vice President and President, AmerisourceBergen Drug Corporation


Robert Mauch is the President, AmerisourceBergen Drug Corporation. Prior to his current role, Mauch was the Chief Operating Officer for AmerisourceBergen Drug Corporation.  He spent two years as the Senior Vice President, operations. From 2010 to 2012, Mauch held positions as Senior Vice President of sales, marketing and sales support as well as alternate care sales and marketing for AmerisourceBergen Drug Corporation. In addition, Mauch served as the President of Xcenda, an Amerisourc... 

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Sun Park
Executive Vice President, Strategy and Development
Sun Park
Executive Vice President, Strategy and Development


Sun Park is Executive Vice President, Strategy and Development. Prior to joining AmerisourceBergen in 2012, he served in various leadership roles across corporate development, corporate strategy and R&D portfolio management at MedImmune, the global biologics division of AstraZeneca. Before joining MedImmune, he held positions at Charterhouse Group International and Merrill Lynch & Company.

Mr. Park graduated from Yale University and attained his Master’s degree in Biotechnology from T... 

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Lazarus Krikorian
Senior Vice President and Corporate Controller
Lazarus Krikorian
Senior Vice President and Corporate Controller


Lazarus Krikorian is Senior Vice President and Corporate Controller of AmerisourceBergen. Prior to being named to his current role in 2012, he was Vice President and Assistant Corporate Controller since joining the Company in 2002.

Prior to joining AmerisourceBergen, he held other financial management positions, including Senior Assurance Manager at KPMG LLP, where he spent a decade. He holds a Bachelor of Science in the dual major of Accounting and Finance from Drexel University.

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Hyung Bak
Vice President, Group General Counsel and Secretary
Hyung Bak
Vice President, Group General Counsel and Secretary


Hyung Bak is Vice President, Group General Counsel and Secretary for AmerisourceBergen Corporation. Mr. Bak joined AmerisourceBergen in June 2015 as Group General Counsel for AmerisourceBergen Drug Corporation and was named Corporate Secretary in May 2016. Prior to AmerisourceBergen, he spent nine years at Campbell Soup Company in senior legal and business roles, including as Vice President of Global Procurement, Chief Counsel to Campbell North America and Chief of Staff to the CEO. Before... 

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J.F.  Quinn
Vice President and Corporate Treasurer
J.F.  Quinn
Vice President and Corporate Treasurer


J.F. “Jack” Quinn is Vice President and Corporate Treasurer, AmerisourceBergen Corporation. Mr. Quinn joined the company in 2002, and was previously Treasurer of IKON Office Solutions. Prior to joining IKON in 1994, he served in several treasury management positions at both ARCO Chemical Company and Columbia Gas System Service Corporation. Mr. Quinn also spent four years with the accounting firm of KPMG LLP.

A Certified Public Accountant and Certified Treasury Professional, Mr.... 

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Vicki  L.  Bausinger
Director, Shareholder Relations & Assistant Secretary
Vicki  L.  Bausinger
Director, Shareholder Relations & Assistant Secretary


Vicki Bausinger has served as Director, Shareholder Relations of AmerisourceBergen Corporation since 2008 and as Assistant Secretary of AmerisourceBergen Corporation since 2001. Ms. Bausinger has held a variety of positions in the Legal Departments of AmerisourceBergen and its predecessor companies, including AmeriSource Health Corporation and Alco Standard Corporation, since 1983. Prior to joining the Company, she was a Legal Assistant with the law firm of Duane Morris in Philadelphia....