Organisational Announcement

Dimensional Co-CEOs Continue to Build Out Their Leadership Team

November 29, 2018

Dimensional1 Co-CEOs Dave Butler and Gerard O’Reilly aim to provide first-class investment solutions and an unparalleled client experience. To drive that mission forward, the firm is elevating experienced leaders from within and bringing in outside talent in some key areas. These additions help ensure our leadership team continues to position the company for excellence in every aspect of our investment offering and client service.

“Our clients operate in an increasingly complex and competitive environment. It’s critical that we continue to help them stay ahead of the curve in every respect. Our leadership team additions reflect our unwavering commitment to serving our clients and supporting their continued success,” said Dave Butler, Co-CEO and Head of Global Financial Services.

“Our clients know we take a long-term view in how we think about markets. We also make long-term investments in our people. Investors in the future will have different needs than today, and we’re strengthening our leadership team so we are well positioned for our clients in the decades to come,” added Gerard O’Reilly, Co-CEO and CIO.


The following changes are effective January 1, 2019:

  • Carlo Venes will become Head of Global Institutional Services. Carlo joined Dimensional in 2011, working primarily in the Singapore office as Head of Institutional in Asia ex Japan. In his new Austin-based role, Carlo will lead sales and client service efforts for institutions globally. He brings a strong client-centric perspective to this role.

  • To enhance our client experience globally, Steve Clark will focus primarily on his role as President of Dimensional International, a position he has held for the past two years. Steve joined Dimensional in 2001; he led Institutional Services from 2012 to 2018 and the Global Portfolio Management team from 2006 to 2012. Steve is a member of Dimensional’s Executive Committee and will rejoin Dimensional’s Investment Committee.

  • Ryan Wiley will become the sole Head of Global Equity Trading. John Romiza will step down from the Co-Head of Global Equity Trading role to focus on his responsibilities as Co-CEO of Dimensional Fund Advisors Ltd., Dimensional's Europe-Africa-Middle East business, alongside Nathan Lacaze. Ryan will continue to oversee trade execution strategies and coordinate all equity trading operations across the firm’s global trading desks. Ryan joined Dimensional in 1999 and has been involved in the development of electronic trading systems, algorithmic trading, and related trading technology systems and projects. Dimensional’s leadership team within equity trading includes Jason Lapping, a leader since joining the firm in 2010. Jason, who is based in Sydney, will take on increased responsibility as he transitions from Head of APAC Trading to Head of International Equity Trading. Prior to Dimensional, Jason spent 14 years in the equity derivatives division at Societe Generale, heading desks in London, Paris, Hong Kong, and Australia.


As the industry evolves, Dimensional is committed to helping our clients stay ahead of the shifting landscape and supporting the investor of the future. With that in mind, we are pleased to announce the following additions to Dimensional’s leadership team:

  • Michael Holmes has joined Dimensional as Chief Technology Officer. He brings more than 25 years of experience leading technology efforts within the financial sector. He spent the last eight years at Bridgewater Associates and has worked at Greenwich Capital, Goldman Sachs, and UBS.

  • Darcy Keller has joined Dimensional as Head of Corporate Communications, overseeing global internal and external communications. She will focus on growing Dimensional’s reputation for leadership and innovation and the important role it plays in delivering a great client experience. Until recently, Darcy was the Chief Communications and Marketing Officer at the Financial Times, where she spent 11 years in senior leadership positions and served on its board of directors.

  • Al Sears has joined Dimensional as a Vice President and will focus on helping our clients navigate the evolving industry and technological landscape. Al joins after 15 years with BAM Advisor Services, a financial advisory firm that has used Dimensional funds for many years. As BAM’s former President and Chief Operating Officer, Al worked with 140 financial advisory firms across the BAM alliance.

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