Gregory J. Weingart

Profile

Gregory Weingart is a partner in the Los Angeles office of Munger, Tolles & Olson. His practice focuses on representation of clients in complex civil litigation, particularly trials, white collar criminal defense and internal investigations. Mr. Weingart is listed in The Best Lawyers in America for commercial litigation, selected for inclusion in the Southern California Super Lawyers® list for white collar criminal defense, and in recognition of his exceptional work for clients, has previously been named by BTI Consulting in its corporate General Counsel survey as a Client Service All-Star.

Mr. Weingart is the co-author of a chapter in the ABA’s Internal Corporate Investigations handbook regarding the Sarbanes-Oxley Act.

In 1995, Mr. Weingart temporarily left the firm and took on the position as an assistant U.S. attorney in Los Angeles, serving as the chief of the office’s major frauds section and head of the Securities and Commodities Fraud Task Force. As a federal prosecutor, Mr. Weingart successfully tried numerous complicated fraud and other cases to verdict and argued frequently before the U.S. Court of Appeals for the 9th Circuit. Mr. Weingart twice received the prestigious Director’s Award from the Department of Justice for superior performance and was a frequent lecturer at the department’s National Advocacy Center and regulators such as the SEC and NASD on the investigation and prosecution of corporate and securities fraud. He rejoined Munger Tolles in 2004.

Mr. Weingart is also active in the community, serving on the board of Mental Health Advocacy Services, a local non-profit organization, as vice chair of the Los Angeles County Bar Association’s Judicial Elections Evaluation Committee and as president of the Cutthroat Lawyers’ Bar Association.

Key Representations

  • DoubleLine Capital LP and certain of its founders, including its CEO Jeffrey Gundlach, in winning a $66.7 million jury verdict in favor of Gundlach against his former employer, Trust Co. of the West (TCW), on his cross-complaint. TCW originally brought suit against Mr. Gundlach and his company, DoubleLine Capital, claiming breach of fiduciary duty, trade secret theft and tortious interference in connection with a large scale departure of employees to DoubleLine Capital after Mr. Gundlach was fired. The jury awarded no damages on TCW's complaint against DoubleLine Capital and the individual defendants.
  • A former CEO, in a closely watched compensation “clawback” claim brought by the Securities and Exchange Commission under the Sarbanes-Oxley Act.
  • A multi-billion dollar hedge fund and its principal, in its successful defense against tort and contract claims brought in arbitration by an investor in the fund. The arbitration panel entered a defense verdict, rejecting the plaintiff’s claims in their entirety and awarding our client their costs in defending the matter. 
  • Allstate, in a series of False Claims Act matters brought against it after Hurricane Katrina involving the adjustment of claims pursuant to the National Flood Insurance Program. All of the matters were dismissed pursuant to motions to dismiss. 
  • A celebrity entrepreneur, against accusations of tax evasion. After a defense investigation showed, among other things, that the government’s main witness embezzled money from Munger Tolles's client and hid exculpatory documents, the government dismissed all felony charges. 
  • One of the world’s largest reinsurance companies, in criminal and civil investigations involving allegations that the company aided clients in committing accounting improprieties.
  • Representation of both companies and individuals in SEC and DOJ investigations involving the Foreign Corrupt Practices Act.
  • A CEO of a New York Stock Exchange traded company in an insider trading investigation. After a series of defense presentations, the government decided not to bring any criminal charges against our client. 
  • The audit committee of a major non-profit institution, in an internal investigation of alleged accounting improprieties. 
  • A Fortune 200 company, in their internal investigation regarding alleged workplace safety violations. After disclosure to the authorities, no action was taken against the company.

Gregory Weingart is a partner in the Los Angeles office of Munger, Tolles & Olson. His practice focuses on representation of clients in complex civil litigation, particularly trials, white collar criminal defense and internal investigations. Mr. Weingart is listed in The Best Lawyers in America for commercial litigation, selected for inclusion in the Southern California Super Lawyers® list for white collar criminal defense, and in recognition of his exceptional work for clients, has previously been named by BTI Consulting in its corporate General Counsel survey as a Client Service All-Star.

Mr. Weingart is the co-author of a chapter in the ABA’s Internal Corporate Investigations handbook regarding the Sarbanes-Oxley Act.

In 1995, Mr. Weingart temporarily left the firm and took on the position as an assistant U.S. attorney in Los Angeles, serving as the chief of the office’s major frauds section and head of the Securities and Commodities Fraud Task Force. As a federal prosecutor, Mr. Weingart successfully tried numerous complicated fraud and other cases to verdict and argued frequently before the U.S. Court of Appeals for the 9th Circuit. Mr. Weingart twice received the prestigious Director’s Award from the Department of Justice for superior performance and was a frequent lecturer at the department’s National Advocacy Center and regulators such as the SEC and NASD on the investigation and prosecution of corporate and securities fraud. He rejoined Munger Tolles in 2004.

Mr. Weingart is also active in the community, serving on the board of Mental Health Advocacy Services, a local non-profit organization, as vice chair of the Los Angeles County Bar Association’s Judicial Elections Evaluation Committee and as president of the Cutthroat Lawyers’ Bar Association.

Key Representations

  • DoubleLine Capital LP and certain of its founders, including its CEO Jeffrey Gundlach, in winning a $66.7 million jury verdict in favor of Gundlach against his former employer, Trust Co. of the West (TCW), on his cross-complaint. TCW originally brought suit against Mr. Gundlach and his company, DoubleLine Capital, claiming breach of fiduciary duty, trade secret theft and tortious interference in connection with a large scale departure of employees to DoubleLine Capital after Mr. Gundlach was fired. The jury awarded no damages on TCW's complaint against DoubleLine Capital and the individual defendants.
  • A former CEO, in a closely watched compensation “clawback” claim brought by the Securities and Exchange Commission under the Sarbanes-Oxley Act.
  • A multi-billion dollar hedge fund and its principal, in its successful defense against tort and contract claims brought in arbitration by an investor in the fund. The arbitration panel entered a defense verdict, rejecting the plaintiff’s claims in their entirety and awarding our client their costs in defending the matter. 
  • Allstate, in a series of False Claims Act matters brought against it after Hurricane Katrina involving the adjustment of claims pursuant to the National Flood Insurance Program. All of the matters were dismissed pursuant to motions to dismiss. 
  • A celebrity entrepreneur, against accusations of tax evasion. After a defense investigation showed, among other things, that the government’s main witness embezzled money from Munger Tolles's client and hid exculpatory documents, the government dismissed all felony charges. 
  • One of the world’s largest reinsurance companies, in criminal and civil investigations involving allegations that the company aided clients in committing accounting improprieties.
  • Representation of both companies and individuals in SEC and DOJ investigations involving the Foreign Corrupt Practices Act.
  • A CEO of a New York Stock Exchange traded company in an insider trading investigation. After a series of defense presentations, the government decided not to bring any criminal charges against our client. 
  • The audit committee of a major non-profit institution, in an internal investigation of alleged accounting improprieties. 
  • A Fortune 200 company, in their internal investigation regarding alleged workplace safety violations. After disclosure to the authorities, no action was taken against the company.