Tammira is President and Chief Executive Officer of Bridgeway Capital Management. She is a member of the firm’s Board of Directors, President of Bridgeway Funds, and serves on committees including Portfolio Innovation and Risk, Responsible Investing, Enterprise Risk, and Diversity, Equity, and Inclusion. Tammira’s responsibilities include development and execution of the firm’s strategy, oversight of all operations, and contributing to the marketing and client service efforts.  Prior to becoming President and CEO, Tammira led strategy and operations projects at Bridgeway from 2005 to 2010 and was Head of Client Service and Marketing from 2010 to 2016.

Tammira earned an MBA from Stanford’s Graduate School of Business and graduated summa cum laude with a BS in Computer Science from Texas A&M University. Her experience prior to Bridgeway includes strategy consulting with McKinsey & Company and business development and marketing for a global satellite communications startup. Tammira is passionate about promoting education and social justice, two areas that are fulfilled through her professional work and volunteer service.  Beyond Bridgeway, Tammira serves on the Stanford GSB Advisory Council, Texas A&M University Computer Science and Engineering Advisory Council, CFA Houston Strategic Advisory Board, and the Investment Committee of the Terry Foundation, a scholarship provider that supported her undergraduate education. Tammira previously served as the Chair of the Community Advisory Board and Director of the Education Foundation of Harris County.

John founded Bridgeway Capital Management in 1993 and is a Co-Chief Investment Officer. John is part of the investment team for all Bridgeway strategies. His responsibilities include portfolio management, research, risk oversight, and mentoring.

John holds a BS in Engineering and a BA in Philosophy from Swarthmore College and graduate degrees from MIT and Harvard Business School. He worked with computer modeling and statistical methods as a research engineer at MIT in the late 1970s. Later, as a student at Harvard, he investigated methods to apply modeling to portfolio management and began applying these methods to his own investments in 1985. John left the transportation industry in 1991 to perform full-time research on his investment models, study the mutual fund industry, and write a business plan for Bridgeway. John serves as the board chair for Bridgeway Capital Management, Bridgeway Foundation, and Aegis Trust.