Grant Davis-Denny is a partner at Munger, Tolles & Olson whose practice focuses on taking complex matters to trial and counseling clients on rapidly changing areas of law.
Mr. Davis-Denny’s trial experience includes some of the country’s most complex cases, such as the Deepwater Horizon litigation and a three-month antitrust trial involving billions of dollars in claimed damages.
Mr. Davis-Denny also assists companies in preparing proactive strategies for complying with data security, antitrust and government ethics laws. He frequently speaks and writes on cybersecurity and campaign finance issues. For example, in a 2016 story describing Munger Tolles among the “legal powerhouses…at the center of the battle” to help companies manage the risk of cyberattacks, the Los Angeles Business Journal quoted Mr. Davis-Denny discussing the boom in cybersecurity firms and the privacy and data security counseling services the firm offers to clients.
The Recorder named Mr. Davis-Denny as one of its "50 Lawyers on the Fast Track" in 2012. The award recognizes California attorneys whose early accomplishments indicate they will be tomorrow’s top lawyers and leaders.
- Representing Transocean, a drilling company, in litigation arising from the BP oil spill in the Gulf of Mexico.
- Representing a technology company in connection with a three-month jury trial involving multi-billion dollar antitrust claims against the world’s largest computer memory manufacturers.
- Successfully obtaining a favorable jury verdict in a $100 million copyright case for a movie producer and author in a Chicago federal trial.
- Conducting an internal investigation into allegations of anti-competitive sales practices.
- Representing a pharmaceutical company against federal antitrust challenges to its drug pricing decisions, including a successful appeal in the U.S. Court of Appeals for the Ninth Circuit.
- Providing antitrust advice related to government clearance of acquisitions of entertainment entities.
- Counseling an energy company regarding the antitrust implications of a joint venture.
- Successfully obtaining a favorable claim construction ruling and summary judgment of non-infringement for a leading software manufacturer accused of patent infringement in the U.S. District Court for the Central District of California.
- Representing technology companies in a patent infringement lawsuit related to web-enabled database management systems.
- Successfully representing a law firm and two of its attorneys in a legal malpractice arbitration. The arbitration resulted in an award from the arbitrator and the dismissal of the plaintiff’s claims.
- Defending an Am Law 100 law firm against multiple actions arising out of allegedly fraudulent tax advice in California, New York, Texas, Colorado and other jurisdictions around the country.
Elections, Ethics Laws and First Amendment Issues
- ACLU of Missouri, as co-counsel, in obtaining a preliminary injunction enjoining law enforcement agencies from forcing peaceful protesters to keep moving on sidewalks, known as the “five-second rule,” in Ferguson, Missouri.
- Advising companies on policies for complying with federal, state, and local campaign finance, procurement, and gift laws.
- Defending the constitutionality of Arizona’s Clean Elections Act in the U.S. District Court for the District of Arizona, the Ninth Circuit and the U.S. Supreme Court.
- Filing amicus curiae briefs on behalf of members of Congress, Common Cause and scholars in the U.S. Supreme Court.
- Obtaining a temporary restraining order against the California Secretary of State in litigation over ballot placement of a statewide initiative.
- Securing a permanent injunction against a California statewide agency for violating the Administrative Procedures Act, and successfully defending that injunction in the California Court of Appeal.
Mr. Davis-Denny has served as a deputy city attorney for the Los Angeles city attorney’s office and tried three criminal cases to verdict.
Mr. Davis-Denny is a member of the board of directors of the Western Center on Law and Poverty, the Los Angeles County Bar Association's Judicial Election Evaluation Committee, and the board of directors of the Los Angeles Metropolitan Debate League. He is also a member and former chair of the board of directors of California Common Cause. At Munger Tolles, he is the co-chair of the firm’s Information Technology committee.
Mr. Davis-Denny graduated from UCLA School of Law in 2003 where he was elected to the Order of the Coif, was a member of the UCLA Law Review, and was a member of the Program in Public Interest Law and Policy. Prior to attending law school, Mr. Davis-Denny worked for elected officials Kathleen Sebelius and Tom Torlakson.