Robert Tiefenbrun

Robert Tiefenbrun

Robert Tiefenbrun
Los Angeles
+1 213 426 2488
Robert Tiefenbrun is counsel in Goodwin’s Securities + Shareholder Litigation and Government Investigations + Enforcement practices. Robert has more than a decade of experience representing corporate and individual defendants in shareholder litigation including federal securities class actions, derivative litigation, breach of fiduciary duty claims, and corporate governance disputes. In addition to representing several of the world’s largest banks in various matters, Robert has helped clients in the cryptocurrency industry respond to private litigation and SEC enforcement matters. Robert also represents clients in internal investigations relating to a range of matters including Foreign Corrupt Practices Act compliance, anti-money laundering diligence, and public disclosure requirements. In addition to his billable work, Robert has dedicated time to pro bono work in the Los Angeles and Santa Ana immigration courts.


Prior to joining Goodwin, Robert was an associate at Jones Day and Cahill Gordon & Reindel.

Representative Matters

Robert’s recent matters includes representation of:

  • A managing director of a cryptocurrency investment fund in connection with an SEC enforcement action
  • Cryptocurrency investment funds in connection with the management of litigation risks related to decentralized autonomous organizations
  • A major bank and its directors in a Rule 10b-5 class action arising from a decline in the company’s stock price allegedly caused by misrepresentation of CMBS credit quality and underwriting standards
  • A multinational retail corporation in connection with a state law breach of fiduciary duty action relating to the company’s acquisition of the assets of an online retailer
  • A pharmaceutical company and its officers in a Rule 10b-5 class action arising from an earnings miss and the FDA’s rejection of a new drug application
  • A technology company and its directors and officers in a Section 14(e) action arising from the sale of the company
  • A genetic testing company in a class action under California’s securities antifraud statute
  • Represented two individual plaintiff shareholders who were denied proceeds from the sale of a software company
  • Various clients in connection with internal investigations and inquiries regarding issues including corporate governance, insider trading, and disclosures to investors




Duke University School of Law

(cum laude, Duke Law Journal)


Duke University School of Law

(cum laude, Duke Law Journal)


University of Colorado

(magna cum laude, Phi Beta Kappa)



  • California
  • New York


Robert’s recent publications/speaking engagements include: