Charles Tan is a senior vice president and co-chief investment officer — Global Fixed Income for American Century Investments®. As co-CIO of Global Fixed Income, Mr. Tan oversees portfolio management and research for the firm’s fixed income strategies, managed in offices in Santa Clara, Calif., New York City, and London, England. Mr. Tan co-chairs the firm's Global Macro Strategy team, which sets the investment strategy for the Global Fixed Income group, and the Risk Management team, which oversees and manages risk for all strategies managed by the Global Fixed Income group. Mr. Tan joined the firm in 2018 from Aberdeen Standard Investments (previously Aberdeen Asset Management), where he held a series of leadership roles, including head of North American fixed income. Before that, he was vice president and senior high yield analyst at Moody's Investors Service. Previously, he was a credit officer with First Commercial Bank of Philadelphia (HSBC Bank). He has worked in the investment industry since 1994. Mr. Tan earned a bachelor's degree in economics from the University of International Business & Economics in Beijing and an MSBA from Bucknell University.

Jason Greenblath is vice president, senior portfolio manager and director of Corporate Credit Research for American Century Investments®. Mr. Greenblath co-leads the Corporate Markets team and is a member of the Global Fixed Income Investment Committee, which sets investment outlook for the Global Fixed Income group. Before joining American Century Investments in 2019, Mr. Greenblath was senior portfolio manager and head of U.S. Investment Grade Credit at Aberdeen Standard Investments. Prior to that, he was head of U.S. Investment Grade Credit Research. He joined Aberdeen in 2008 as a senior corporate analyst. He previously was a high yield/distressed credit analyst at RBS Greenwich Capital and has worked in the investment industry since 2002. Mr. Greenblath earned a bachelor's degree in finance from Pennsylvania State University.

Rob co-manages the U.S. Sustainable Large Cap Core strategy and provides fundamental research and equity analysis on the health care and consumer staples sectors for this strategy as well as the U.S. Large Cap Growth strategy. He has been a member of the team since joining the firm in 2005. Previously, he was an analyst for U.S. Trust Company of New York with responsibilities that included health care sector coverage. Rob has worked in the investment industry since 1994. He earned a bachelor's degree in accounting from Villanova University and a master's degree in business administration with a concentration in finance from New York University.

Joe co-manages the U.S. Sustainable Large Cap Core, U.S. Systematic Large Cap Core and U.S. Systematic All Cap Core strategies and provides quantitative research and risk management for these strategies as well as U.S. Large Cap Growth. Joe has been a member of this team since the firm in 2000. Previously, he was an equity analyst in the equity research department at Commerce Bank. Joe has worked in the investment industry since 1995. He earned a bachelor's degree from the Olin School of Business at Washington University in St. Louis. Joe is a CFA charterholder and a member of the CFA Institute.

Justin co-manages the U.S. Large Cap Growth and U.S. Sustainable Large Cap Core strategies and provides fundamental research and equity analysis on the consumer discretionary, commercial services, and technology sectors for these strategies. Justin has been a member of this team since joining the firm in 2000. Previously, he was an equity analyst at USAA Investment Management Company with responsibilities for technology and retail sector coverage. Prior to USAA, Justin was an equity analyst at Hanifen Imhoff. He earned a bachelor's degree in finance from Texas Christian University. Justin is a CFA charterholder and a member of the CFA Institute.

Steve co-leads the Rates & Currency Markets team within Global Fixed Income and is a member of the Global Fixed Income Investment Committee, which sets investment outlook for the Global Fixed Income group. Steve also serves as a senior portfolio manager on several fixed income strategies, including Global Fixed Income, U.S. Inflation-Adjusted Bond, U.S. Inflation Protection Bond, and U.S. Short Duration Inflation Protection Bond. Prior to joining American Century in 2024, Steve was a portfolio manager at T. Rowe Price and the co-head of the Global Interest Rate and Currency strategy team. Previously, he was a director of portfolio management with Fannie Mae. He started in the industry in 1999 as an analyst at Cambridge Associates. Steve earned a bachelor’s degree in economics from George Washington University and a master’s degree in business administration from the Robert H. Smith School of Business at the University of Maryland. He is a CFA© charterholder and member of the CFA Institute.