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Sidley Austin LLP

Work +1 312 853 7000
Fax +1 312 853 7036

John W. Treece

Work 312/853-2937
Sidley Austin LLP

Work Department





United States: Antitrust


Within: Cartel

Sidley Austin LLP’s 45-strong antitrust team has a good spread of attorneys across the US, with specialists in Washington DC, New York, Chicago and San Francisco. The team handles criminal cartel cases in a wide range of areas, including autoparts, CRTs, LCD panels, and LIBOR/TIBOR. The firm acted as counsel to Citigroup in the appeal of what was perhaps the largest antitrust settlement in US history, in the ‘Payment Card Interchange Fee’ case. Peter Huston joined the firm’s San Francisco office in early 2015 after serving as assistant chief of the DOJ’s Antitrust Division. William Blumenthal, Marie Fiala, Joel Mitnick and John Treece are the key partners. Active clients include BorgWarner, Dow and Macmillan.

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Civil litigation/class actions

Within: Civil litigation/class actions

Sidley Austin LLP’s strong Chicago practice, which has recently handled cases in sectors such as telecoms, financial services and pharmaceuticals, is complemented by a network of antitrust specialists across the country, including in Washington DC, New York and Los Angeles. In the recent work for AstraZeneca, a cross-office team including joint leader of the global antitrust department John Treece, David Giardina, Courtney Hoffmann and Alycia Degen obtained a major appellate victory for the pharmaceutical company in a complex case spanning antitrust and IP issues relating to the heartburn drug Prilosec. Other clients include SSAB, Microsoft and St. Luke’s Health System. Former assistant chief of the DOJ’s Antitrust Division Peter Huston joined in San Francisco.

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Merger control

Within: Merger control

Sidley Austin LLP is ‘among the very best firms when it comes to representing clients trying to get deals cleared by the DOJ and the FTC’, according to sources. Forty-five partners are spread across offices in Washington DC, New York, Chicago, San Francisco, Los Angeles and Palo Alto. The firm acted for AT&T in the antitrust aspects of its $48.5bn acquisition of DirecTV, creating the largest pay-TV provider in the US. The group also handled all regulatory clearances for Cobra Electronics in connection with its acquisition by Monomoy Capital Partners II. Former FTC general counsel William Blumenthal has ‘all the institutional knowledge to deal with the agencies’ and ‘avoids expensive dead ends’. Blumenthal co-heads the practice with San Francisco-based Marie Fiala, Joel Mitnick in New York and John Treece in Chicago. ‘Smart and practicalKen Glazer is also recommended. Karen Kazmerzak, a former FTC attorney, was promoted to partner. All attorneys are based in Washington DC except where stated otherwise.

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