Jeffrey S. Rosenberg is an associate in the Washington, D.C. office of Gibson, Dunn & Crutcher. He practices in the firm’s Litigation Department with a particular focus on securities class actions and shareholder derivative actions, complex business litigation, and government enforcement matters. He has represented a wide variety of clients in the banking, hospitality, manufacturing, defense, health care, biotechnology, food and beverage, and consulting industries in federal and state courts, investigations, and enforcement matters. He regularly represents companies and their officers and directors in shareholder disputes such as securities class actions, derivative lawsuits alleging breaches of fiduciary duties, and challenges to mergers and acquisitions. He also advises boards of directors and their committees in conducting internal investigations and evaluating and responding to shareholder demands. He further represents companies in litigation and enforcement actions involving the government, principally in the securities and financial sectors.
Representative Shareholder Litigation Matters:
- Won dismissal of a securities class action and parallel derivative litigation claiming that a worldwide hotel operator made false and misleading statements concerning its susceptibility to cyberattacks.
- Won dismissal of a securities class action assailing a biotechnology company’s public statements about the development of its products .
- Defending a worldwide hotel operator in a derivative action alleging breach of fiduciary duties related to cybersecurity incident.
- Defending a major provider of computing and other and products in securities class action litigation and parallel derivative litigation.
- Defending a biotech developer and provider of testing products in securities class action litigation and parallel derivative litigation.
- Defending a cryptocurrency mining company in securities class action litigation.
- Defending a biotechnology and chemical company in securities class action litigation.
- Representing shareholders of a biotech company in appraisal litigation.
- Defended a biotech company in a series of shareholder derivative lawsuits challenging the decisions of company directors and executives.
Other Representative Matters:
- Defending a major banking industry client in parallel litigation and enforcement actions brought by one of its regulators.
- Ongoing representation of a multinational consumer goods company in an accounting practices investigation before the SEC.
- Defending a major pulp and paper manufacturer in a series of lawsuits alleging that air emissions from the client’s facilities have caused personal injuries and property damage in various jurisdictions.
- Defending a major paper manufacturer in a multi-million dollar civil penalties action and related mass tort actions arising from alleged dioxin releases from a legacy disposal facility.
- Successfully litigated motion to sever and stay indicted healthcare fraud prosecution based on client’s physical incapacity, leading to complete dismissal of indictment.
- Represented an independent corporate compliance monitor in a Freedom of Information Act case in liming the disclosure of monitorship reports and materials.
- Investigated allegations of corporate embezzlement on behalf of the board of directors of a non-profit organization and government contractor, resulting in a multi-million dollar civil settlement for the organization and criminal prosecution of the former executive.
- Defended a national engineering and consulting firm accused of False Claims Act violations in the provision of services to the federal government in the field of radioactive waste recycling.
- Represented Audit Committee of a public medical diagnostics company in an internal investigation of whistleblower allegations of accounting improprieties and internal controls deficiencies.
- Represented a multinational oil and gas company in an internal investigation of whistleblower allegations regarding risk management practices.
- Represented a defense contractor in a Procurement Integrity Act investigation being conducted by the Naval Criminal Investigative Service.
Mr. Rosenberg is a cum laude graduate of the Georgetown University Law Center, where he served as the solicitations editor of the Georgetown Journal of International Law. He received a Bachelor of Arts degree, with honors, from Johns Hopkins University with a double major in Classics and Philosophy. While an undergraduate, he concurrently completed and graduated with a Master of Arts degree in Classics.
Prior to joining the firm, and while pursuing his law degree, Mr. Rosenberg worked as a consultant providing homeland security, critical infrastructure protection, incident and emergency management, strategic and operational policy and planning, and enterprise risk management advice to public and private sector clients.
Mr. Rosenberg is admitted to practice law in the Commonwealth of Virginia and the District of Columbia, and before the U.S. Court of Appeals for the Fourth Circuit, U.S. District Court for the District of Columbia, U.S. District Court for the Eastern District of Virginia, U.S. District Court for the District of Maryland, and the U.S. District Court for the Western District of Virginia.