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  • J.D., 1991
    The University of Michigan Law School
    (cum laude)
  • A.B., 1988
    Harvard College
    (cum laude)
  • 1991 to 1992 U.S. Court of Appeals for the Tenth Circuit, Honorable David M. Ebel

Mike Isenman, a partner in the firm’s Litigation Department, focuses his practice primarily on securities litigation, class action litigation, and other complex litigation.


Mr. Isenman represents clients in federal courts throughout the country, in commercial arbitrations, and before federal and state government agencies. He counsels clients on a variety of regulatory and compliance matters arising under the federal securities laws.

Mr. Isenman has represented mutual funds, investment advisers, fund and retirement plan service providers, insurance companies, hedge funds, other financial services companies, and their respective officers and directors in a variety of litigation and regulatory contexts, including class actions, shareholder derivative litigation, internal investigations, and governmental investigations and inquiries. Mr. Isenman has significant trial experience, including, for example, taking two mutual fund market timing lawsuits to trial.

Outside of the financial services arena, Mr. Isenman frequently represents companies in class actions, complex business disputes, and other litigation.

Examples of recent representations include:

  • On behalf of the independent directors of a group of mutual funds, successfully obtained the dismissal of a putative shareholder derivative and class action that alleged breach of fiduciary duty in connection with the sale of the mutual funds’ investment adviser, and successfully defended that judgment on appeal. Halebian v. Berv, 869 F. Supp. 2d 420 (S.D.N.Y. 2012), affirmed, 2013 U.S. App. LEXIS 22801 (2d Cir. Nov. 12, 2013).
  • On behalf of a large mutual fund complex, successfully obtained the dismissal of a putative 10b-5 class action alleging that fund prospectuses falsely represented that class A shares were better long-term investments than other share classes.
  • On behalf of a large financial services company, served as lead counsel in successfully obtaining the dismissal of several putative class actions challenging the company’s use of retained asset accounts to settle life insurance claims, and successfully defended those dismissals on appeal.
  • On behalf of a large 401(k) plan provider, conducted an internal investigation regarding payments to intermediaries in connection with sales of retirement services.
  • On behalf of a large financial services company, served as lead counsel in successfully obtaining the dismissal of a putative class action challenging an increase in cost-of-insurance charges in universal life insurance contracts.
  • On behalf of a large financial services company, defended an ERISA "stock-drop" class action alleging breach of fiduciary duty in connection with origination and underwriting of sub-prime loans.
  • On behalf of a large financial services company, successfully tried a lawsuit against a well-known mutual fund market-timer.
  • Served as lead counsel to a special committee of the board of directors of a privately-held company in a dispute with a controlling shareholder.
  • Representation of various financial services companies, investment advisors, and related entities in connection with investigations or inquiries by the Securities Exchange Commission, the Federal Trade Commission, the New York Attorney General's Office, and other government regulators.


Mr. Isenman was a partner at Shea & Gardner prior to its combination with Goodwin Procter in 2004.


Mr. Isenman is admitted to the Bar of the District of Columbia and various federal bars around the country.


Mr. Isenman has been recognized by The Legal 500 U.S. for his ERISA litigation work. While attending law school, Mr. Isenman served as Article Editor of the Michigan Law Review.