Elizabeth Tran Castillo joined Cotchett, Pitre & McCarthy, LLP in 2012 and is a partner in the Antitrust & Global Competition practice group. Her practice focuses on complex litigation and, specifically, antitrust class actions against international cartels. Ms. Castillo’s successes include representing End-Payor Plaintiffs in In re Automotive Parts Antitrust Litigation (Auto Parts), a multidistrict litigation pending in the Eastern District of Michigan. Auto Parts concerns the bid-rigging, price-fixing, and market allocation of scores of automotive parts and has become the largest indirect purchaser class action in terms of settlement value in history. Ms. Castillo received the American Antitrust Institute’s Outstanding Antitrust Litigation Achievement by a Young Lawyer Award in 2016 and Outstanding Antitrust Litigation Achievement in Private Law Award in 2019 for her work on Auto Parts.

Ms. Castillo has represented clients in both federal and state courts and at all stages of litigation, including discovery, trial, and appeals. While she is involved in all aspects of the cases she litigates, she places emphasis on her discovery and settlement strategy work. She occasionally litigates other types of cases. For example, she was part of a trial team that obtained a multimillion-dollar economic loss jury verdict for a former Major League Baseball pitcher in 2018. Ms. Castillo has been named to the Super Lawyers Northern California Rising Stars List each year from 2015 to 2020.

Ms. Castillo earned her J.D. from the University of California, Hastings College of the Law (UC Hastings) in 2011. At UC Hastings, she was a Super Regional Semifinalist in the Jessup International Law Moot Court Competition. She also received Honorable Mentions for both Best Brief and Best Oral Argument in Moot Court. Additionally, she served as a Judicial Extern to the Honorable A. James Robertson II in the Superior County of California, County of San Francisco, and as a Teaching Assistant for both Legal Writing & Research and Moot Court. Throughout law school, she mentored underserved high school students on preparing for college.

Ms. Castillo received her B.A. in Economics and Political Science, with a concentration in Public Policy, from Boston University (BU) in 2008. At BU, she interned at an international law firm and business advocacy organization in London and Sydney, respectively, during her third year. Ms. Castillo has national and state legislative experience. She interned for then-U.S. Representative Neil Abercrombie (D-Hawaii, 1991-2010; Governor of Hawaii, 2010-2014) in Washington, D.C. and State Representative Scott Nishimoto (D-Hawaii, 2003-present) in Honolulu.

Ms. Castillo immigrated from Vietnam to the United States and is the first lawyer in her extended family. She grew up in Honolulu but has been laying roots in the Bay Area since 2008. She lives in San Mateo with her husband, Chris. She enjoys good food, great deals, meticulous planning, and outdoor adventures.


Ms. Castillo currently represents plaintiffs in the following antitrust class actions in which she serves as lead or co-lead counsel and has secured noteworthy results for American consumers and businesses:

  • In re Automotive Parts Antitrust Litigation, MDL No. 2311, Master File No. 2:12-md-02311-MOB (E.D. Mich.) ($1.2 billion+ in settlements to date)
  • In re Capacitors Antitrust Litigation, No. 3:14-cv-03264-JD (N.D. Cal.) ($80.85 million in settlements to date)
  • In re Domestic Airline Travel Antitrust Litigation, MDL No. 2656, No. 1:15-mc-01404-CKK (D.D.C.) ($60 million in settlements to date)
  • In re Resistors Antitrust Litigation, No. 5:15-cv-03820-JD (N.D. Cal.) ($33.4 million in settlements)
  • In re Transpacific Passenger Air Transportation Antitrust Litigation, MDL No. 1913, Case No. 3:07-cv-05634-CRB (N.D. Cal.) ($148.152 million in settlements)



Speaking Engagements


Honors & Awards

Honors & Recognitions

2019 American Antitrust Institute Outstanding Antitrust Litigation Achievement in Private Law Practice Award

2016 American Antitrust Institute Outstanding Antitrust Litigation Achievement by a Young Lawyer Award

2015-2020 Super Lawyers Northern California Rising Stars List

  • Super Lawyers


Executive Committee, Antitrust, UCL & Privacy Section, California Lawyers Association

Antitrust Law Section, American Bar Association

Asian American Bar Association of the Greater Bay Area

Consumer Attorneys of California

San Mateo County Bar Association

Community Involvement

Ms. Castillo has served on the Executive Committee of the Antitrust, UCL & Privacy Section of the California Lawyers Association since 2018. She is currently the vice-chair of the Education Standing Committee. The Section is dedicated to furthering the knowledge of its members about antitrust, unfair competition, trade regulation, and privacy issues under state and federal laws through education programs, publications, and other activities.

Ms. Castillo also participates/participated in the following organizations:

  • Volunteer, Federal Pro Bono Project, United States District Court, Northern District of California (2015- )
  • Advisory Board Member, Global Private Litigation Committee, Section of Antitrust Law, American Bar Association (2018- )
  • Co-Chair, Trying Antitrust (newsletter), Trial Practice Committee, Section of Antitrust Law, American Bar Association (2019)
  • Co-Chair, Mentorship Committee, Asian American Bar Association (2018-2019)
  • Co-Chair, Annual Dinner Host Committee, Asian American Bar Association (2017-2018)
  • Chair, Scholarship Dinner Planning Committee, Vietnamese American Bar Association of Northern California (2016)


University of California, Hastings College of the Law, J.D., 2011

  • Super Regional Semifinalist, Philip C. Jessup International Law Moot Court Competition
  • Honorable Mentions, Best Brief and Best Oral Argument, Moot Court
  • Teaching Assistant, Legal Writing & Research and Moot Court
  • Bar Association of San Francisco Bay Area Minority Law Student Scholarship Recipient

Boston University, B.A., Economics and Political Science, 2008

  • London Internship Program
  • Sydney Internship Program
  • Washington, D.C. Internship Program

Università Commerciale Luigi Bocconi, Milan, Italy, Fall 2010


  • California


  • Vietnamese (conversational)
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