View Selected Experts

We examine every case to identify the most effective expert witnesses.

We examine every case to identify the most effective expert witnesses.

Paul A. Gompers

Eugene Holman Professor of Business Administration,
Harvard Business School,
Harvard University;
Senior Advisor, Cornerstone Research

Paul Gompers provides expert testimony in securities and valuation cases in a variety of industries. He has addressed issues of market efficiency, the valuation of public and private companies, factors affecting public company securities prices, the custom and practice of venture capital and private equity organizations, as well as the terms and conditions of employment agreements at entrepreneurial firms. He has served as an expert witness in several high-profile cases, including Private Equity Antitrust Litigation, IBEW Local 90 Pension Fund et al. v. Deutsche Bank AG et al., and Pao v. Kleiner Perkins Caufield & Byers LLC.

Professor Gompers’s research focuses on the structure, governance, and performance of private equity funds; sources of financing, incentive design, and performance of private firms; and long-run performance evaluation for newly public companies. His work on private equity funds has examined the relationship between general partners and their portfolio companies, as well as the relationship between institutional investors and private equity fund managers. Additionally, Professor Gompers has examined the relationship of corporate governance and firm performance as well as the role that institutional investors play in public equity markets.

He was a director of research at the Harvard Business School for nine years, currently serves as faculty chair of the M.B.A. Elective Curriculum, and as a research associate at the National Bureau of Economic Research. He also has served as a consultant, board member, or advisor to numerous companies, investment banks, private equity funds, and venture capital firms. Professor Gompers has coauthored several books and has published numerous articles in peer-reviewed finance and economics journals. He is an associate editor and referee for a number of leading academic journals.

We examine every case to identify the most effective expert witnesses.

René M. Stulz

Everett D. Reese Chair of Banking and Monetary Economics,
Director, Dice Center for Research in Financial Economics,
Fisher College of Business,
The Ohio State University

René Stulz is a leading finance expert, whose work focuses on corporate finance, risk management, derivatives, securities, financial institutions, and valuation. Professor Stulz has provided expert testimony in U.S. federal and state courts, U.S. and international arbitrations, the London High Court of Justice, and the Federal Court of Australia.

René Stulz’s findings have provided the foundation for favorable rulings in motion practice and on damages. His expert testimony played a key role in class certification and summary judgment in a number of high-profile matters, including In re BP p.l.c. Securities Litigation and In re Moody’s Corporation Securities Litigation.

He has testified in many securities class actions, as well as matters related to mortgage-backed securities and collateralized debt obligations (CDOs), bankruptcy, derivatives, cross-border transactions, alleged state discriminatory practices against investors, hedge fund and pension fund management, fixed-income securities, insurance contracts, taxes, and breach of contract allegations.

Professor Stulz was president of the American Finance Association, edited the Journal of Finance, and co-edited the Journal of Financial Economics. He wrote the textbook Risk Management and Derivatives, has edited several books, and has published more than one hundred papers in finance and economics journals. The Journal of Applied Corporate Finance dedicated its winter 2022 issue to Professor Stulz’s research, republishing his notable articles on globalization, corporate finance, and risk management.

Thomson Reuters includes Professor Stulz in its list of the world’s most influential scientific minds. He is one of the most highly cited scholars in financial economics. Who’s Who Legal has recognized Professor Stulz as a leading expert witness in legal arbitration.

Professor Stulz is a bank director and a trustee of the Global Association of Risk Professionals. He has consulted for the International Monetary Fund, the World Bank, the New York Stock Exchange, the Federal Reserve Bank of New York, and various corporations and law firms. Professor Stulz is also a research associate of the National Bureau of Economic Research (NBER) and a fellow of the European Corporate Governance Institute. At the NBER, he directs the research group on the risks of financial institutions.

We examine every case to identify the most effective expert witnesses.

Amy P. Hutton

Professor of Business Administration,
Carroll School of Management,
Boston College

Amy Hutton is an expert in securities, financial statement analysis, corporate governance, and business valuation. Her research focuses on corporate disclosure, capital market accounting, and the role of financial intermediaries in capital markets.

Professor Hutton testifies and consults on class certification, price impact, damages, and financial accounting issues in a variety of litigation and regulatory investigation matters.

As a result of her research, Professor Hutton was named to the Congressional Review Board, opining on the Security Industry Association’s “best practices for equity research.” She won the American Accounting Association’s inaugural Distinguished Contribution to Accounting Literature Award for her co-authored article “Causes and Consequences of Earnings Management: An Analysis of Firms Subject to Enforcement Actions by the SEC.”

Professor Hutton was an editor for the Accounting Review and continues to serve as a referee for several leading peer-reviewed accounting and finance journals. She has held faculty appointments at Dartmouth’s Tuck School of Business and Harvard Business School.

We examine every case to identify the most effective expert witnesses.

Mark J. Garmaise

Professor of Finance,
UCLA Anderson School of Management,
University of California, Los Angeles

Mark Garmaise is a corporate finance expert who specializes in topics related to banking, entrepreneurship, financial contracting, real estate, and securities. Professor Garmaise has testified in high-profile cases involving breach of contract, valuation, and damages. In securities class action and opt-out matters, he has provided expert testimony on class certification and merits issues.

His industry experience includes FinTech, cryptocurrency, entertainment, financial services, investment banking, automotive, and microfinance. Professor Garmaise has also consulted with a U.S. bank on refining its residential mortgage delinquency model.

Professor Garmaise analyzes a range of complex issues affecting real estate markets, entrepreneurial firms, venture capital, and private equity. He has published papers on mortgage terms, the performance of small business lenders, and the effects of financial constraints on entrepreneurs. His research has appeared in peer-reviewed publications such as the Review of Financial Studies, the Journal of Finance, and the Quarterly Journal of Economics.

An award-winning instructor with more than two decades of experience, Professor Garmaise teaches MBA and executive courses on corporate finance, venture capital, and private equity (including investment strategies such as the use of special purpose acquisition companies, or SPACs). He is a former senior associate dean of the MBA program at the UCLA Anderson School of Management. Previously, Professor Garmaise served on the faculty of the University of Chicago Booth School of Business.

Securities Capabilities

Cornerstone Research provides rigorous financial and statistical analysis and expert testimony in all phases of Rule 10b-5 and Section 11 matters. Drawing on decades of academic research and practical experience on security price formation, we have developed innovative approaches to evaluating alternative damages scenarios.

We analyze market efficiency, price impact, potential damages methodologies, trading behavior, and reliance by class members. Cornerstone Research staff and affiliated experts consistently have defined leading analytical methods relating to class certification in cases across a wide range of industries and securities.

We work with clients in litigation and regulatory matters spanning the full spectrum of fixed income securities, and interest rate and credit derivatives. With expertise in all major transaction types and markets, our staff and experts address a broad range of issues related to:

  • Pricing and valuation
  • Investment and risk management
  • Bond event studies and market efficiency
  • Suitability and disclosure adequacy
  • Credit ratings and default
  • Alleged market manipulation and collusive trading practices

We provide consulting and expert testimony in securities fraud trials, supporting attorneys to develop effective litigation strategies. Our analyses have been cited in trial verdicts, summary judgment decisions, and Daubert challenges.

Featured Cases

Featured Publications

12 April 2022

Accounting Class Action Filings and Settlements—2021 Review and Analysis

Securities class action filings and settlements with accounting allegations fell in 2021—both in terms of numbers and as percentages of total secur...

24 March 2022

Securities Class Action Settlements—2021 Review and Analysis

The number of securities class action settlements reached a 10-year high in 2021.

17 March 2022

The Gensler SEC: What to Expect in 2022

Since Gary Gensler became chair of the SEC in April 2021, his agency has signaled an active agenda that many expect will be aggressively enforced.

25 February 2022

Women in Securities Litigation Network (Women in Leadership Blog)

A group of industry leaders has formed an organization to foster networking, mentoring, and collaboration among women who practice in the securitie...

2 February 2022

Securities Class Action Filings—2021 Year in Review

Plaintiffs filed far fewer securities class action complaints in 2021 than in the previous year.

19 January 2022

SEC Cryptocurrency Enforcement: 2021 Update

Under the new administration, the SEC has continued its role as one of the main regulators in the cryptocurrency space.

16 November 2021

SEC Enforcement Activity: Public Companies and Subsidiaries—Fiscal Year 2021 Update

The U.S. Securities and Exchange Commission filed fewer enforcement actions against public companies and subsidiaries in fiscal year 2021, the lowe...

3 November 2021

SEC Cryptocurrency Enforcement: Q3 2021 Update

Under the Biden administration, the SEC continues to be active in policing the cryptocurrency space with 19 enforcement actions related to cryptocu...

28 July 2021

Cornerstone Research Connects: SEC Cryptocurrency Enforcement—Q3 2013–Q4 2020

The authors discuss key trends of the SEC’s enforcement actions against digital asset market participants.

27 July 2021

Securities Class Action Filings—2021 Midyear Assessment

Plaintiffs filed 112 new securities class action lawsuits in federal and state courts in the first half of 2021.

How can we help you?

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