The Healthy Markets Leadership Team


Tyler Gellasch, Executive Director
Tyler Gellasch is a financial services policy professional and securities lawyer with senior-level public and private sector experience.  Gellasch’s public service included five years in the US Senate, first as Counsel for securities, banking, and tax matters for Senator Carl Levin (D-MI), and later as Senior Counsel to the Permanent Subcommittee on Investigations (PSI). Gellasch was intimately involved in drafting several high-profile pieces of legislation, including the Volcker Rule provisions of the Dodd-Frank Act, the crowdfunding provisions of the JOBS Act, and the securities law provisions of the STOCK Act. He also assisted with several Senate hearings and reports, including a landmark hearing in December 2010 on the stability and integrity of the US capital markets and a hearing and report in November 2014 on banks’ involvement with physical commodities. Gellasch’s government service also included a year as Counsel to then-new SEC Commissioner Kara M. Stein, whom he advised on equities and fixed income market reforms, the Volcker Rule, derivatives reforms, corporate disclosure reforms, Regulation A, Regulation D, and other matters.  In private practice, Gellasch has served as a General Counsel for WR Hambrecht + Co., as well as associate at Mayer Brown LLP and Morgan, Lewis & Bockius, LLP. Gellasch is Founder of Myrtle Makena, LLC, a consulting firm, where he counsels clients on a variety of capital markets issues.

Dave Lauer, Chairman and Board Member
Dave Lauer is a technologist and trading expert who is routinely asked to provide views to regulators, members of Congress, and the press. Lauer has designed and built the infrastructure that underpins several modern electronic trading systems and previously worked as a quantitative analyst and trader on high-frequency trading desks. Lauer's current work focuses on scalable technology, predictive analytics, complex systems design and consultation for organizations working to better understand and navigate modern equity markets. Lauer sits on several for-profit and non-profit boards, including as Independent Director for Aequitas.

Christopher Nagy, Co-founder and Board Member
Christopher Nagy is a 30-year veteran of Wall Street with a deep understanding of trading and US market-structure.  Currently, Nagy serves as Founding Principal of KOR Group LLC, a regulatory market structure consulting firm. Nagy previously was a managing director of order routing and market-data strategy at TD Ameritrade where his responsibilities included developing and implementing best execution, routing technology and execution analytics. During his tenure with TD Ameritrade, Nagy also co-headed the firm’s government relations efforts.  Previously, Nagy worked with firms such as US Bank, MJK and Shearson Lehman Brothers. Nagy has served on a multitude of industry committees and exchange boards, including the Philadelphia Stock Exchange Board as off-floor Vice Chairman, NYSE AMEX Options Exchange Board, Nasdaq Quality of Markets Committee, Security Traders Association Trading Issues Committee, Options Industry Council Roundtable, and former chair of the SIFMA Options Committee. Nagy has held FINRA Series, 4, 7, 24, 53,55, 63 Licenses, and is a graduate of the Securities Industry Institute Wharton Program.

Joseph Engelhard, Board Member
Joseph Engelhard is a Senior Vice President at MetLife, where he leads their Global Regulatory Policy Group.  Engelhard is a twenty-year veteran of financial regulatory policy issues and has held a wide variety of senior-level positions in the U.S. government, including General Counsel of the Joint Economic Committee, Senior Counsel at the House Financial Services Committee, and Deputy Assistant Secretary for Trade & Investment Policy at the U.S. Treasury.  Prior to joining MetLife, Engelhard was an analyst at Capital Alpha Partners, where he advised Morgan Stanley and a number of buy-side clients on financial policy actions taken as a result of the financial crisis including the passage and implementation of the Dodd-Frank Act. 

J. Robert Brown, Jr., Board Member
J. Robert Brown is a Professor at the University of Denver Sturm College of Law, the Director of the Corporate & Commercial Law Program at the law school, and serves as the Secretary to the SEC’s Investor Advisory Committee.  He has written extensively on corporate and securities law subjects, including a textbook on Corporate Governance and a book on corporate disclosure (The Regulation of Corporate Disclosure).  Several of his articles that have been cited by the US Supreme Court (including one in Basic v. Levinson, the seminal case on materiality under the antifraud provisions).  Professor Brown has advised foreign governments on corporate and securities law reform, serves as an arbitrator for FINRA, and has been the primary drafter on a number of amicus briefs on behalf of law faculty in cases before the US Supreme Court, including Merck, Matrixx and Omnicare.  Among his outside activities, Professor Brown is the chairman of the board of directors of the Colorado Coalition for the Homeless.

James D. Cox, Board Member
James D. Cox is Brainerd Currie Professor of Law at Duke University School of Law. Professor Cox earned his B.S. from Arizona State University and law degrees at University of California, Hastings College of the Law (J.D.) And Harvard Law School (LL.M.). In 2001, he received an Honorary Doctorate of Mercature from the University of South Denmark. In addition to his texts Financial Information, Accounting and the Law, Corporations (with Hazen & O’Neal), Business Organizations Cases and Materials (with Eisenberg), and Securities Regulations: Cases and Materials (with Hillman & Langevoort), Professor Cox has published extensively in the areas of market regulation and corporate governance, as well as having testified before the U.S. House and Senate on insider trading, class actions, and market reform issues. He served as a member of the corporate law drafting committees in California (1977-80) and North Carolina (1984-1993) and a member of the ABA Committee on Corporate Laws. He has also served as a consultant to the Kingdom of Saudi Arabia and more recently, conducted training programs for securities regulators in Bosnia, China and Thailand. His professional memberships include the American Law Institute, the PCAOB Standing Advisory Group, NYSE Legal Advisory Committee, the NASD Legal Advisory Board, and the Fulbright Law Discipline Review Committee.