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Tanya Dmitronow is a partner in the Litigation Department and a member of the Firm’s White Collar Defense & Investigations and Securities Litigation Groups. Tanya’s practice focuses on federal securities-fraud class-action defense, corporate-governance litigation, shareholder derivative suits and M&A-related litigation. Tanya also has significant experience representing clients in connection with domestic and international regulatory and internal investigations, and in SEC enforcement actions in particular.

She has represented foreign and U.S.-based clients from a broad range of industries, including technology, telecommunications, insurance, financial services, private equity, hedge funds, energy services, oil and gas, and healthcare.

Tanya was named in August 2016 to Benchmark Litigation’s "Under 40 Hot List," which honors the achievements of the nation’s most accomplished law firm partners age 40 or younger.

She serves as the securities law editor of Proskauer’s Corporate Defense and Disputes blog, and she publishes regularly.

Before joining Proskauer, Tanya was a partner at Dewey & LeBoeuf LLP. Earlier in her career, Tanya was a corporate transactional attorney in London, England, and in Sydney, Australia, where she is admitted to practice as a solicitor.

Key Representations

  • An international oil and gas corporation in each of the regulatory investigations and civil cases arising out of its recategorization of certain of its oil and gas reserves, including SEC and Department of Justice investigations, together with ERISA, shareholder derivative and securities class action litigation in the United States, and European regulatory investigations by the FSA and Euronext
  • A global insurance corporation in the securities class action arising out of the IPO of its reinsurance subsidiary
  • A prominent technology firm in shareholder derivative suits and in the company's direct action against multiple former officers and directors in connection with stock-options practices
  • A consortium of debt holders in the bankruptcy proceedings of an automotive component manufacturer
  • A major financial services firm in a shareholder derivative investigation into its executive compensation practices
  • A global risk-mitigation and business-solutions provider regarding a transaction with its controlling shareholder
  • A leading energy services firm in a major shareholder derivative matter involving allegations of improper accounting, OFAC/export-control violations, FCPA violations, kickbacks, government contracting abuses, environmental damage and other misconduct
  • Merger litigation for several publicly listed REITs
  • Merger litigation for an executive of a major American holding company with subsidiaries engaged in a broad range of industries
  • A leading information technology company in multiple shareholder derivative suits regarding technology, accounting and corporate acquisition-related matters
  • A non-U.S. wind-energy company in a U.S. securities class action concerning accounting practices under international accounting standards
  • A financial services firm and its affiliates in shareholder class actions and related derivative actions concerning valuation and revenue-recognition practices
  • Numerous financial services firms in connection with SEC enforcement proceedings
  • Various clients facing SEC and FINRA inquiries involving trading and other regulatory issues
  • Various clients for counseling and training on prohibitions against insider trading