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Domestic Research
Based in Chicago

John W. Rogers, Jr.

Chairman, Co-CEO & Chief Investment Officer
Lead Portfolio Manager
Ariel Fund
Co-Portfolio Manager
Ariel Small Cap Value, Ariel Small/Mid Cap Value, Ariel Mid Cap Value and Ariel Appreciation Fund
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 to focus on patient, value investing within small- and medium-sized companies. While our research capabilities have expanded across the globe, patience is still the disciplined approach that drives the firm today. Early in his career, John’s investment acumen brought him to the forefront of media attention and culminated in him being selected as Co-Mutual Fund Manager of the Year by Sylvia Porter’s Personal Finance magazine as well as an All-Star Mutual Fund Manager by USA TODAY. Furthermore, John has been highlighted alongside legendary investors Warren Buffett, Sir John Templeton and Ben Graham in the distinguished book: The World’s 99 Greatest Investors by Magnus Angenfelt. His professional accomplishments extend to the boardroom where he is a member of the board of directors of McDonald’s, NIKE and The New York Times Company. John also serves as vice chair of the board of trustees of the University of Chicago. Additionally, he 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, John was awarded Princeton University’s highest honor, the Woodrow Wilson Award, presented each year to the alumnus or alumna 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. John received an AB in economics from Princeton University, where he was also captain of the varsity basketball team.

Charles K. Bobrinskoy

Vice Chairman, Head of Investment Group
Portfolio Manager
Ariel Focus Fund and Ariel Focused Value
Charlie manages our focused value strategy—an all-cap, concentrated portfolio of U.S. stocks. He also spearheads Ariel’s thought leadership efforts and takes an active role in representing Ariel’s investment strategies with prospective investors, clients and major media. 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 boards of State Farm Mutual Automobile Insurance Company and InnerWorkings, Inc., as well as the boards of the Museum of Science and Industry, the Abraham Lincoln Presidential Library Foundation Board, the Big Shoulders Fund and the Chicago Club. 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.
Cheryl Cargie

Cheryl Cargie

Senior Vice President
Head Trader
With over 30 years of trading experience, Cheryl is Ariel’s head domestic trader. Prior to joining the firm in 1994, she was vice president and head trader at Fiduciary Management Associates. In this capacity, she was the firm’s principal trader of both equities and fixed income securities. Prior to her tenure at Fiduciary Management, Cheryl was an equity trader at Aon Corporation. She is an active member of NASDAQ’s Institutional Traders Advisory Council and a member of the National Organization of Investment Professionals. In 2013, Cheryl was honored with The Lifetime Achievement Award from the Securities Traders’ Association of Chicago (STAC), where she also served as a past president. Traders Magazine also recognized her industry experience and commitment to excellence in 2015 with The Lifetime Achievement Award. Outside of Ariel, Cheryl is involved in her community, where she is a Commissioner of the River Forest Park District Board. Cheryl graduated from Illinois State University with a BS in finance.
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.

Timothy Fidler, CFA® 

Executive Vice President, Director of Research
Co-Portfolio Manager
Ariel Appreciation Fund and Ariel Mid Cap Value
As Ariel’s director of research, Tim is responsible for overseeing all of our domestic equity team’s research output, including chairing our investment committee meetings. He also serves as co-portfolio manager for our mid cap value strategy. 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.
James Kenny, CFA

James Kenny, CFA®

Vice President, Research
Jim focuses on services and industrials 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.

Kenneth E. Kuhrt, CPA

Senior Vice President
Co-Portfolio Manager
Ariel Small Cap Value
Portfolio Manager
Ariel Fund, Ariel Micro-Cap Value and Ariel Small Cap Deep Value
Ken serves as co-portfolio manager of our small cap value strategy. Additionally, his portfolio management responsibilities extend across Ariel Fund, as well as our micro-cap value and small cap deep value products. In his research capacity, 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 Micro-Cap 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 his 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 nearly 30 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.
John Oxtoby

John T. Oxtoby

Vice President, Director of Impact Investing
John leads Ariel’s efforts to integrate best-in-class environmental, social, and governance-related considerations into our investment process. As ESG analyst for our domestic research team, he proactively works with portfolio companies to adopt and strengthen their social impact and governance practices. John also oversees Ariel’s public policy and civic engagement strategies. Prior to joining Ariel, he worked in the White House with Senior Advisor Valerie Jarrett and Chairman of the Council of Economic Advisers Austan Goolsbee, on public-private partnerships, including the CEO-led President’s Jobs Council. He graduated with a BA in economics from Harvard College and earned an MBA from Harvard Business School.
Jamil Soriano

Jamil Soriano

Vice President, Research
Jamil focuses on consumer products, insurance 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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