Jamison A. Diehl

Jamison A. Diehl focuses on complex civil litigation, securities litigation and enforcement actions, internal and government investigations, corporate governance litigation, insurance matters, partnership/investor disputes and white-collar crime.

Practice & Background

Mr. Diehl has litigated and investigated cases involving securities and accounting fraud, investigations by U.S. and foreign securities regulatory agencies, complex insurance issues, contract and trademark disputes, product liability, RICO and ERISA.

Mr. Diehl received his B.A. summa cum laude in 1992 from the University of Massachusetts at Amherst, where he was elected to Phi Beta Kappa. He received his M.A. in 1996 from Harvard University and his J.D. in 1999 from Stanford Law School.
Representative Matters

Examples of Mr. Diehl’s recent representations include:

serving as lead litigation counsel to former director and officer of American International Group, Inc. (“AIG”) in federal securities class action and derivative lawsuits related to the subprime mortgage crisis (S.D.N.Y.)
serving as litigation counsel to former director of AIG in ERISA stock-drop class action (S.D.N.Y.)
serving as lead litigation and strategic counsel to current employee of AIG in connection with internal and government investigations, and in shareholder derivative lawsuits in Delaware and New York related to AIG’s 2005 Restatement (Delaware Court of Chancery and N.Y. Supreme Court)
serving as counsel to hedge fund in class action litigation against it alleging commodities manipulation, antitrust and RICO claims in connection with NYMEX futures contracts
acting as a principal drafter of briefing before the United States Supreme Court for the Manhattan Democratic Party in Lopez Torres v. New York State Board of Elections, which resulted in a unanimous decision establishing the constitutionality of New York’s convention system for electing state Supreme Court justices. The New York Law Journal, profiled the Lopez case as one of the top cases of 2004. (United States Supreme Court)
winning a motion to dismiss a federal products liability action against General Motors Corporation and other defendants (S.D.N.Y.)
successfully defending senior manager of PWC in SEC investigation and enforcement litigation arising out of bankruptcy of Allegheny Health Education and Research Foundation (E.D.Pa.)
acting as counsel to a leading excess insurer in a policy limits claim under a blended policy providing directors and officers, errors and omissions and fidelity coverage.

Good to know

Areas of Practice 1) Complex Commercial Litigation, 2) Securities Enforcement and Litigation and 3) Litigation
Law School Stanford Law School, J.D., 1999
Education University of Massachusetts Amherst, B.A., 1992
Bar Member / Association New York State Bar Association
Most recent firm Akin, Gump, Strauss, Hauer & Feld, LLP
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