Domestic Research Team
Based in Chicago
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John W. Rogers, Jr.

Chairman, CEO & Chief Investment Officer
Lead Portfolio Manager
Ariel Fund
Co-Portfolio Manager
Ariel Appreciation Fund, Ariel Small Cap Value, Ariel Small/Mid Cap Value and Ariel Mid Cap Value
John’s passion for investing began at age 12, when his father began buying him stocks as Christmas and birthday gifts. His interest in equities grew at Princeton University, where he majored in economics, and over the two-plus years he worked as a stockbroker for William Blair & Company, LLC. In 1983, John founded Ariel Investments to employ a patient, value strategy in small and medium-size companies. He strongly believes in giving back to Chicago, sitting on the corporate boards of Exelon and McDonald’s, and serving as trustee to the University of Chicago. Nationally, John is a member of the American Academy of Arts and Sciences, and a director of the Robert F. Kennedy Center for Justice and Human Rights. In 2008, he was awarded Princeton University’s highest honor, the Woodrow Wilson Award, presented each year to the alumnus whose career embodies a commitment to national service. Following the election of President Barack Obama, John served as co-chair for the Presidential Inaugural Committee 2009, and more recently, he joined the Barack Obama Foundation’s Board of Directors. In 2013, John was featured alongside legendary investors Warren Buffett, Sir John Templeton and Benjamin Graham in the distinguished book: The World’s 99 Greatest Investors by Magnus Angenfelt. John received an AB in economics from Princeton University, where he was also captain of the varsity basketball team.
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Charles K. Bobrinskoy

Vice Chairman, Head of Investment Group
Portfolio Manager
Ariel Focus Fund and Ariel Focused Value
Charlie oversees Ariel’s domestic investment team. He also manages our focused value strategy—an all-cap, concentrated portfolio of U.S. stocks. Prior to joining Ariel in 2004, Charlie spent 21 years as an investment banker at Salomon Brothers and its successor company Citigroup, where he rose to managing director and head of North American investment banking branch offices. Charlie actively serves the Chicago community, sitting on the corporate board of InnerWorkings, Inc., a publicly traded print procurement company, as well as the boards of the Museum of Science and Industry, La Rabida Children’s Foundation and the Big Shoulders Fund. He also teaches monthly investing classes at two Chicago inner-city schools. Charlie graduated with an AB in economics from Duke University and earned an MBA from the University of Chicago.
Sabrina Carollo, CFA

Sabrina Carollo, CFA®

Senior Vice President
Director of Research Operations
Sabrina oversees the department’s broker relationships. As a research analyst she specializes in health care and office supply companies. Prior to joining Ariel in 2001, she spent seven years at William Blair & Company, LLC, mainly as a research associate. Sabrina is a member of the CFA Institute and the CFA Society of Chicago. She is also a member of Rush University Medical Center’s Associates Board. Sabrina graduated from Ball State University with a BA in accounting and earned her MBA in healthcare management from Loyola University.
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Timothy Fidler, CFA® 

Senior Vice President, Director of Research
Co-Portfolio Manager
Ariel Appreciation Fund and Ariel Mid Cap Value
Tim serves as co-portfolio manager for our mid cap value strategy and serves as the firm’s director of research. As a research analyst, he currently specializes in financial services companies. Prior to joining Ariel in 1999, Tim was a research analyst and portfolio manager at Morgan Stanley asset management in U.S. value equity. In 2007, he graduated from the Fellowship Program of Leadership Greater Chicago, an initiative to educate and connect emerging leaders in Chicago. In 2008, Institutional Investor magazine recognized him as one of 20 rising stars in the industry. Tim graduated Phi Beta Kappa from Northwestern University with a BA with honors in Economics and earned his MBA with high honors from the University of Chicago.
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Kenneth E. Kuhrt, CPA

Senior Vice President
Co-Portfolio Manager
Ariel Small Cap Value
Portfolio Manager
Ariel Fund, Ariel Discovery Fund, Ariel Micro-Cap Value and Ariel Small Cap Deep Value
Ken serves as co-portfolio manager of our small cap value strategy. Additionally, he serves as portfolio manager for Ariel Fund, as well as our micro-cap value and small cap deep value products. As a research analyst, Ken covers consumer services and industrials. Prior to joining Ariel as a research analyst in 2004, he spent more than two years with William Blair & Company, LLC, most recently as a senior investment banking analyst. Ken also worked as a senior auditor at KPMG, LLP. He earned a BS in accounting from the University of Illinois at Urbana-Champaign and an MBA from the University of Chicago, and he is also a Certified Public Accountant.
David Maley

David M. Maley

Senior Vice President
Lead Portfolio Manager
Ariel Discovery Fund, Ariel Micro-Cap Value and Ariel Small Cap Deep Value
David is lead portfolio manager for our micro-cap and small cap deep value strategies. Additionally, he manages the firm's domestic trading team and chairs Ariel's trade oversight committee. He joined the firm in April 2009, bringing an impressive micro-cap value track record, as well as 25 years of investment experience. Prior to Ariel, David ran Maple Hill Capital Management. He began his investment career at Goldman Sachs, where he rose to vice president, and then later joined Harris Bank as a vice president and senior portfolio manager. David serves on the Chicago advisory board of Good Sports, the investment committee of Thresholds, and the board of directors and finance committee of the Joseph Maley Foundation. He earned a BBA in finance with high honors from the University of Notre Dame and an MBA from the University of Chicago.
John P. Miller, CFA

John P. Miller, CFA®

Senior Vice President
Co-Portfolio Manager
Ariel Small/Mid Cap Value
Portfolio Manager
Ariel Fund
John serves as co-portfolio manager of our small/mid cap value strategy. Additionally, he serves as portfolio manager for Ariel Fund. He has played an integral part on Ariel’s investment team for over 26 years, and as a research analyst covers asset management and media companies. Prior to joining Ariel in 1989, John worked for Cantor Fitzgerald & Co. in its institutional equity division. He is a member of the CFA Institute and the CFA Society of Chicago, and is also a board member of Voices for Illinois Children. John earned a BB in management from Western Illinois University and an MBA from the University of Chicago.
James Kenny, CFA

James Kenny, CFA®

Vice President, Research
Jim focuses on services and insurance as a research analyst. He joined Ariel in 2008 as a summer intern and returned as a full-time research analyst in 2010. Previously, he served as a managing consultant for Navigant Consulting for three years. He is a member of the CFA Institute and the CFA Society of Chicago. Jim graduated summa cum laude with a BBA in finance from the University of Notre Dame and earned his MBA with honors distinction from the Wharton School at the University of Pennsylvania.
Jamil Soriano

Jamil Soriano

Vice President, Research
Jamil focuses on consumer products and retail companies as a research analyst. He joined Ariel full-time in July 2012 after participating in our summer internship program in 2011. Prior to Ariel, he worked in the investment banking and debt capital markets divisions at Credit Suisse Securities, and later as an investment analyst for Brown Bear Capital Management LLC. Before entering the financial services industry, he was a player for several teams in the National Football League, including a season with the 2003-04 Super Bowl winning New England Patriots. Jamil earned his AB in biological sciences from Harvard and his MBA with honors from the University of Chicago.
 
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