Mark Rosen represents clients in high-stakes business litigation and provides counseling on complex legal challenges. Mark focuses on commercial and class action litigation as well as matters of corporate governance. He represents companies and financial services firms in class action litigation, securities litigation, and complex business litigation including breach of contract and breach of fiduciary duty actions arising out of commercial transactions, mergers & acquisitions, privatizations and financings. Mark has extensive experience in shareholder disputes involving public and private companies, closely-held corporations, controlling stockholders and alternative entities, including application of the business judgment rule.
Mark also represents companies and individuals in trade secrets, competition and employment litigation, including claims of misappropriation of trade secrets and breach of non-compete and confidentiality agreements. He defends banks and financial institutions in tort and contract actions involving check fraud, bank operations and a variety of UCC issues.
In addition to his litigation practice, Mark counsels clients on corporate governance matters, including the fiduciary duties of directors, officers and managers, disclosure obligations, regulatory compliance, insider trading issues and ways to minimize litigation exposure. He has conducted internal investigations on behalf of boards of directors, audit committees and companies. Mark also represents companies and individuals in SEC investigations. Before joining Pierce Atwood in 2010, Mark practiced in the Securities Litigation and Corporate Governance Group at Weil, Gotshal & Manges LLP in New York.
- Association of Defense Trial Attorneys
- New Hampshire Bar Association
New Hampshire Business and Industry Association – COVID-19 Business Reopening Liability Working Group
- Treasurer, Board of Directors, Tenants Association at Pease, Inc.
- Secretary, Board of Directors, Brixham Montessori Friends School
- Pro bono counsel for underserved clients referred by the New Hampshire Legal Advice and Referral Center