FacultyFaculty/Author Profile

Seth Aronson

O'Melveny & Myers LLP

Los Angeles, CA, USA


Seth Aronson is a partner in O'Melveny's Los Angeles office and a member of the Securities Litigation Practice.  He served as Firmwide chair of the practice from March 2002 to March 2011 and also served as the Managing Partner of O'Melveny's Los Angeles office from July 2000 through January 2008. Seth defends corporations and their directors, officers and professionals in securities class actions, shareholder derivative actions, SEC enforcement proceedings, unfair competition and consumer class actions, as well as RICO and mergers and acquisitions litigation. He is a leader in defending foreign issuers sued in the U.S. and is particularly active on behalf of Chinese companies. Seth is the Co-Chair of the PLI's annual Securities Litigation and Enforcement Institute.

Seth has worked with a variety of major companies and their directors and officers, including: Lockheed Martin; Bank of America; WellPoint; Tenet Healthcare; Giant Interactive Group, Inc.; American Apparel; Vitesse Semiconductor Corp.; Advanced Medical Optics; China Agritech, Inc.; Diagnostic Products Corp. (Siemens Medical Solutions); Broadcom, Inc.; Southwest Gas; Qwest Communications; Vicuron Pharmaceuticals; Fannie Mae; Guess?, Inc.; Skechers USA; Homestore.com; Watson Pharmaceuticals; Freeman Spogli and Co.; AST Computers; Avant! Software; International Rectifier; PricewaterhouseCoopers LLP; The Royal Automobile Club Limited; First Executive/Executive Life; IDB (WorldCom) Communications Group, Inc.; Pacific Enterprises; CIGNA Corp.; La Senza Corp.; Aletheia Research & Management, Inc.; Morgan Stanley; Robertson Stephens; Montgomery Securities, BT Alex. Brown; Salomon Smith Barney; MiniMed; Powerwave Technologies; and Liberate Technologies.  Seth has also represented high-profile individuals, including Nebraska Governor (now U.S. Senator) Ben Nelson and Los Angeles Mayor Richard Riordan.

Seth has been recognized by Chambers and Partners: Chambers USA - America's Leading Business Lawyers as a leading lawyer in three categories: General Commercial Litigation (California), Securities Litigation (national) and Securities Litigation (California; Band 1) ("a prominent figure in major securities class actions") ("one of the best in the USA in defending [securities] suits"); named a "Top 100 Lawyer" by Daily Journal (2008) ("Around the country, he's known as a perspicacious hard-nosed litigator who can go toe-to-toe with the most aggressive plaintiff lawyer"); listed in Legal 500 United States for his securities litigation practice; named a leading California litigator and ranked among the top 50 securities litigators in the Benchmark Litigation guide; listed as a 'Highly Recommended' lawyer in Dispute Resolution by PLC Which Lawyer?; recognized by Who's Who Legal: California (2009) as one of the top 34 commercial litigators in the state ("one of the go-to guys for securities litigation and was consistently endorsed by some of the practice area's heavy-hitters"); recognized by the Los Angeles Business Journal (2007) in its "Best of the Bar" special report as one of the top 12 litigators among Los Angeles County's 48,000 lawyers; recognized by the Los Angeles Daily Journal (2005) as one of the top 30 securities litigators in California; named by Lawdragon as one of the "500 Leading Lawyers in America" (2006-09), as well as one of the "100 Securities Litigators You Need to Know" (2008); and appears in Best Lawyers in America (2006-12).

Education

  • Loyola University,  J.D., 1981
  • Ohio University,  B.B.A., 1978


Professional Activities

  • Admitted, California
  • Admitted to Practice, US District Court, Central, Southern, and Northern Districts of California; US Court of Appeals, Eighth and Ninth Circuits; US Supreme Court
  • Board of Governors, Association of Business Trial Lawyers (1992-2002) (President, 2001-02)
  • Board of Directors, Los Angeles Area Chamber of Commerce (2003-present); Ninth Circuit Historical Society (2000-present); Legal Aid Foundation of Los Angeles (1993-2000) (President 1998-1999); California Club (Secretary); Southern California Leadership Network (2009)
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