Sergei Zaslavsky

Counsel

Disclaimer

Thank you for your interest. Before you communicate with one of our attorneys, please note: Any comments our attorneys share with you are general information and not legal advice. No attorney-client relationship will exist between you or your business and O’Melveny or any of its attorneys unless conflicts have been cleared, our management has given its approval, and an engagement letter has been signed. Meanwhile, you agree: we have no duty to advise you or provide you with legal assistance; you will not divulge any confidences or send any confidential or sensitive information to our attorneys (we are not in a position to keep it confidential and might be required to convey it to our clients); and, you may not use this contact to attempt to disqualify O’Melveny from representing other clients adverse to you or your business. By clicking "accept" you acknowledge receipt and agree to all of the terms of this paragraph and our Disclaimer.

Sergei Zaslavsky is an antitrust attorney with broad experience in trials, regulatory merger reviews, conduct investigations, antitrust audits, and antitrust counseling. Sergei effectively represents his clients by being both detail-oriented and strategic, and by studying his clients’ businesses to understand how legal questions intersect with marketplace realities. In doing this, he is able to synthesize antitrust doctrine, economics, and facts into advocacy that is both rigorous and intuitive.

Sergei is a veteran of three federal trials and one arbitration hearing. He has taken the testimony of executives, second-chaired direct and cross examinations of world-famous economists, and argued in court. In 2018, Sergei was a key member of the O’Melveny AT&T-Time Warner merger trial team that prevailed against the DOJ in what the press has dubbed “the antitrust trial of the century.”

VIEW MORE

Admissions

Bar Admissions

  • District of Columbia
  • Maryland

Education

  • Harvard University, J.D.: magna cum laude
  • Dartmouth College, A.B., Economics: summa cum laude

Professional Activities

Member

  • ABA Antitrust Section

Author

Contributing Author

  • Antitrust Law Developments Update, ABA (2019)
  • Consumer Protection Law Developments, ABA (2016)

Co-Author

  • “Deciding Between Bench and Jury Trial: Reflections After US Airways v. Sabre,” Antitrust (Fall 2017)
  • “Price Discrimination Markets in Merger Cases: Practical Guidance from FTC v. Sysco,” Antitrust (Fall 2016)

Podcasts

  • Antitrust Law Section‘s “Our Curious Amalgam - Shepherding a Merger from Inception to Approval,” Co-Host, ABA (2019)

Speaker

  • ABA Fundamentals of Antitrust Economics Series: Statistical Significance (November 2018)
  • ABA Consumer Protection Update (October 2015)
  • Defended AT&T and Time Warner against DOJ’s challenge of their historic merger. The trial was characterized as a “sweeping victory for AT&T” by The Wall Street Journal, and the representation received Global Competition Review’s 2018 “Merger Matter of the Year – Americas” award.
  • Represented a major electronics company in a high-stakes ICC arbitration, taking the testimony of high-ranking marketing executives and second-chairing expert examinations.
  • Prepared key fact witnesses and second-chaired economic experts’ direct and cross examinations in US Airways v. Sabre, an eight-week trial that resulted in a favorable jury verdict and garnered Global Competition Review’s “Litigators of the Week” award for the O’Melveny trial team.
  • Represented US Airways in litigation against the DOJ in its merger with American Airlines. The representation garnered Global Competition Review’s 2014 “Matter of the Year” award.
  • Represented Honeywell in its lawsuit to block competitors’ merger.
  • Represented Honeywell in its acquisition of Intermec.
VIEW MORE

Press Releases