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Arlen Pyenson

Phone: +1 212.803.4057
590 Madison Avenue, 20th Floor
New York, NY 10022-2544

Arlen Pyenson is a counsel in Crowell & Moring's New York office and is a member of the White Collar & Regulatory Enforcement and International Dispute Resolution groups. In 2016-2020, Arlen was recognized as a New York "Rising Star" in the area of Criminal Defense: White Collar by Super Lawyers Magazine.

Arlen's practice in the White Collar & Regulatory Enforcement Group focuses on white collar criminal defense, regulatory enforcement actions, government investigations, corporate internal investigations, and complex civil litigation. Arlen has represented individuals and corporations in the course of investigations by the SEC, DOJ, FINRA, NYAG, and other federal, state, and international regulators, involving a wide range of business offenses, including public corruption, Foreign Corrupt Practices Act violations, criminal antitrust, accounting fraud, insider trading, alleged manipulation of the LIBOR rate and foreign currency exchange market, and fraud relating to residential mortgage-backed securities. She has also defended individuals in both criminal and civil litigations, including allegations of environmental crimes and civil RICO violations.

In the International Dispute Resolution group, her practice focuses on international commercial and investment arbitration. Arlen has represented parties in arbitrations under the rules of the International Chamber of Commerce (ICC), the International Centre for Dispute Resolution (ICDR), and the United Nations Commission on International Trade Law (UNCITRAL), involving various industries, including hospitality, beverage, and technology. Her experience includes disputes involving parties from Italy, Lithuania, the United States, the United Kingdom, Egypt, the United Arab Emirates, China, and South Korea.

Selected Representations:

White Collar & Regulatory Enforcement:

  • A former executive at an investment bank charged in a civil FIRREA case in the EDNY relating to fraud in the sale of RMBS. Secured favorable settlement involving no admission of wrongdoing.
  • Securing a declination from DOJ of a senior executive at a large global financial institution in connection with a criminal investigation of a complex foreign exchange (FX) transaction.
  • An executive at a pharmaceutical company in connection with an investigation by DOJ’s Antitrust Division into alleged price-fixing in the generic pharmaceuticals space.
  • A power plant construction company in an internal investigation related to a public corruption prosecution in the SDNY.
  • A leading publicly-traded international retailer in connection with an internal investigation and high-profile DOJ and SEC investigation related to the Foreign Corrupt Practices Act.
  • A senior executive at an investment bank in connection with an internal investigation and related criminal and regulatory inquiries by the DOJ, SEC, and Federal Reserve Bank of New York into alleged bribery and Foreign Corrupt Practices Act violations arising from the bank’s hiring practices in Asia.
  • A global engineering company in an internal investigation of potential bid-rigging in violation of federal criminal antitrust laws at several construction projects.
  • Multiple senior-level traders and executives at financial institutions in connection with global investigations of LIBOR, foreign exchange, and other products.
  • A global engineering company in connection with a WDTX public corruption investigation.
  • A pool of current and former employees of an investment bank in connection with multiple regulatory and related civil matters concerning the marketing and sales of residential mortgage-backed securities (RMBS).
  • A senior executive in connection with a major federal securities fraud prosecution in the Eastern District of New York (EDNY).
  • A prominent broker-dealer in a FINRA enforcement investigation regarding allegations of trading unregistered securities without appropriate money-laundering detection capabilities in place.
  • A financial analyst at a real estate investment trust in connection with an accounting fraud investigation in the SDNY and SEC.
  • A former hedge fund trader in connection with a major federal insider trading trial in the SDNY.

International Dispute Resolution:

  • An Italian wine manufacturer in an ICDR/AAA arbitration against its U.S. importer, under New York law.
  • An Italian investor in an UNCITRAL arbitration against Lithuania, under the Italy-Lithuania BIT, relating to Lithuania's unfair and inequitable treatment of the investor's investment in the country's alcohol industry.
  • A British soccer player in an arbitration in the Dispute Resolution Chamber of FIFA, in a dispute with an Egyptian soccer club.
  • A Fortune 500 international hotel operating company in an ICC arbitration under United Arab Emirates law, relating to a dispute with owners of a U.A.E. hotel under a hotel management agreement.
  • A U.S. distributor of audio-visual products in an ICC arbitration against claims of breach of a patent licensing agreement by a South Korean global electronics company, under New York law.

While in law school, Arlen served as a judicial intern to the Honorable Theodore H. Katz, U.S. District Court Magistrate Judge in the Southern District of New York. She was selected to be a member of the Innocence Project clinic, where she represented individuals seeking post-conviction remedies based on DNA testing. Arlen was also selected as a teaching assistant in Cardozo's Lawyering Skills & Legal Writing Program and elected senior articles editor of the Cardozo Arts & Entertainment Law Journal.

Admitted to practice in New York and New Jersey, Arlen is a member of the American Bar Association Section of International Law International Arbitration Committee and the Section of Litigation Securities Litigation Committee, the New York State Bar Association, the Association of the Bar of the City of New York, the Young International Council for Commercial Arbitration (ICCA), ICDR Young & International, the Young International Arbitration Group, and the ICC Young Arbitrators Forum. She has been honored by the New York State Bar Association as Empire State Counsel for her contributions to pro bono legal service.


  • Princeton University, A.B. (1998) politics and certificate in political theory
  • Benjamin N. Cardozo School of Law, J.D. (2009) concentration in litigation


Admitted to Practice: New York, New Jersey; U.S. District Court for the Southern and Eastern Districts of New York, U.S. District Court for the District of New Jersey

View More

"Congress Trains Its Sights On The Fintech Industry’s Role In Issuing Allegedly Fraudulent PPP Loans," Westlaw Today (June 21, 2021). Authors: Olivia Lynch, Arlen Pyenson, Tiffany Wynn, Gabrielle Trujillo, and Rebecca Monck Ricigliano.
"Congress Trains its Sights on the FinTech Industry’s Role in Issuing Allegedly Fraudulent PPP Loans," White Collar Alert (June 7, 2021). Contacts: Olivia Lynch, Rebecca Monck Ricigliano, Arlen Pyenson, Tiffany Wynn, Gabrielle Trujillo
Client Alert / Newsletter
"Watch Those Portion Sizes: The Cheesecake Factory Settles with SEC for Misleading, Optimistic Statements Regarding Its Financial Outlook Amid the Pandemic," White Collar Alert (December 8, 2020). Contacts: Daniel L. Zelenko, Arlen Pyenson, Gabrielle Trujillo
Client Alert / Newsletter
"COVID-19 Relief Fraud Prosecutions Target Increasingly Sophisticated Schemes," White Collar Alert (November 20, 2020). Contacts: Preston L. Pugh, Daniel L. Zelenko, Arlen Pyenson, Lisa Nicole Umans
Client Alert / Newsletter
"FCPA Guidance Update: DOJ and SEC Release Second Edition of Resource Guide to the U.S. Foreign Corrupt Practices Act," White Collar Alert (July 9, 2020). Contacts: Thomas A. Hanusik, Kelly T. Currie, Derek A. Hahn, Nimrod Haim Aviad, Arlen Pyenson
Client Alert / Newsletter
Global Investigations Review Names Crowell & Moring’s White Collar & Regulatory Enforcement Group to “GIR 100” Fifth Year in a Row (Nov.05.2019)
Firm News / Announcement
Super Lawyers Recognizes 82 Crowell & Moring Lawyers Across United States (Sep.20.2019)
Firm News / Announcement
"The Whole Truth: Effective Witness Interviews," Crowell & Moring's Investigations Workshop 2019, Washington, DC (May 8, 2019). Moderator: Glen G. McGorty; Speakers: Daniel L. Zelenko, Trina Fairley Barlow, and Arlen Pyenson.
"Out Like a Lion: March Brings New Obligations to Employers Doing Business in New Jersey," Labor & Employment Law Alert - US (March 27, 2019). Contacts: Kris D. Meade, Rebecca Monck Ricigliano, Ira M. Saxe, Rebecca L. Springer, Arlen Pyenson
Client Alert / Newsletter
Super Lawyers Recognizes 82 Crowell & Moring Lawyers Across United States (Oct.15.2018)
Firm News / Announcement

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Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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