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Baker Botts L.L.P.

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Joseph Ostoyich

Baker Botts L.L.P.

Work Department

Litigation / Antitrust / Antitrust & Competition Law Group


oseph Ostoyich is Chair of the firm’s Litigation Department in Washington, D.C. He has more than two decades of experience representing some of the world’s leading companies in price fixing, monopolization and the full gamut of antitrust litigation in U.S. courts and in investigations and merger reviews by the Department of Justice, the Federal Trade Commission, the European Commission and government authorities around the world. He has represented clients in bet-the-company competitor and class action lawsuits, including more than a dozen different class action clusters in the paper, chemical, foundry, energy, transportation and agricultural commodities industries.


Litigation Department Chair/Antitrust Group in Washington, D.C. Mr. Ostoyich has nearly twenty-five years of experience defending price fixing, monopolization, and other bet-the-company antitrust cases in federal courts across the country, including nearly two dozen class action antitrust case clusters. His most recent trial victory was a defense verdict in a price fixing case brought by the Federal Trade Commission. Mr. Ostoyich also has considerable experience in obtaining merger clearance from the Department of Justice, the Federal Trade Commission, and governmental authorities around the world.




U.S. Supreme Court, D. C. Circuit, Third Circuit, Sixth Circuit, Eleventh Circuit, multiple district courts.


is J.D. University of Chicago, B.A. Cornell University (with distinction in all subjects)

United States: Antitrust


Within: Cartel

Baker Botts L.L.P.’s John Taladay, who is a co-chair of the practice along with Stephen Weissman, is representing the International Air Transport Association (IATA) and 27 airlines in the European Commission (EC) investigation into allegedly restrictive after-market practices by CFM (a joint venture between GE and Safran) and Honeywell in the aviation industry. Members of the team are also acting for Toyoda Gosei in an MDL involving more than 30 individual actions and over 50 individual defendants, and are representing the client as the leniency applicant in the DOJ’s trial against Tokai Kogyo. Heather Choi is experienced in handling criminal and civil enforcement matters initiated by the SEC, DOJ and FTC, among other federal and state enforcement authorities. Other key figures are Erik Koons, James Rill, Joseph Ostoyich and Stacy Turner.

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Civil litigation/class actions: defense

Within: Civil litigation/class actions: defense

Baker Botts L.L.P.’s team in the US is jointly led by John Taladay and Stephen Weissman. It covers the full spectrum of behavioral issues which give rise to antitrust litigation, including monopolization, price-fixing, market allocation and patent misuse. Its wide-ranging workload includes civil cartel cases brought by the FTC, class actions involving direct and indirect purchasers, and opt-out litigation. Taladay, Joseph Ostoyich, Erik Koons and William Lavery are representing Eaton Corporation in a series of direct and indirect purchaser class actions over an alleged conspiracy with four truck makers to monopolize the heavy-duty truck transmissions market. James Kress, Stuart Plunkett in San Francisco, Paul Cuomo, and Van Beckwith in Dallas are other key figures. Michael Perry joined from the FTC. Named individuals are based in Washington DC unless otherwise stated.

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Merger control

Within: Merger control

Baker Botts L.L.P.’s antitrust practice chair Stephen Weissman ‘knows the ins and outs of the antitrust regulators in the US’. Weissman’s team, which also includes such names as John Taladay, Sean Boland and Joseph Ostoyich, also assists clients with merger reviews involving the EC and other international agencies. Paul Cuomo is acting for RealPage in the DOJ’s second request review of its proposed $300m acquisition of Lease Rent Options and other assets from The Rainmaker Group, and is also handling the antitrust aspects of the client’s $250m acquisition of OnSite Manager’s assets. In addition, Boland, Weissman and Michael Perry are acting as antitrust counsel to Valero in its proposed acquisition of petroleum storage facilities and distribution terminals in California. All named individuals are based in Washington DC.

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