Ms Sara Razi > Simpson Thacher & Bartlett LLP > Washington DC, United States > Lawyer Profile

Praised for its ‘efficient and creative counsel’, the team at Simpson Thacher & Bartlett LLP guides clients through complex domestic and cross-border transactions in key industries including chemicals, financial services, pharma, telecoms and entertainment. The practice excels in domestic and international merger filings, DOJ and FTC investigations, including Second Request processes, and merger-related litigation. New York-based global co-chair Peter Guryan, described as ‘extremely intelligent, responsive, respectful and practical‘, continues to be highly successful in merger mandates, notably representing L3Harris Technologies in its $4.7bn acquisition of Aerojet Rocketdyne Holdings. Sara Razi also co-chairs the antitrust team and is a key name for DOJ and FTC merger investigations as well as cross-border mandates, while Preston Miller has expertise in merger approvals and related investigations across a wide variety of industries. Karen Kazmerzak joined from Sidley Austin LLP in 2023, contributing significant experience of antitrust prosecution on the agency side. All lawyers mentioned are based in Washington DC, unless otherwise stated.

Fielding a deep bench of former enforcement attorneys, prosecutors, and trial lawyers from the FTC and DOJ, Simpson Thacher & Bartlett LLP‘s antitrust and trade regulation practice is equipped to support clients from industries such as software, transportation, defense, insurance, and advises on the full spectrum of cartel matters, including internal investigations, leniency programs, criminal and regulatory investigations and advice on dawn raids. Covering allegations of price fixing, market allocation, bid rigging, and no-poach, conduct among others, the team is jointly headed by Peter Guryan in New York, John Terzaken, and Sara Razi. Engaged by clients from all major industries, Terzaken handles antitrust enforcement matters as part of his diverse white-collar practice, while Abram Ellis is a name to note for cartel-related civil litigation. Representing multinational corporations, independent board committees, and senior executives in investigations by federal and state enforcement regulators is a key area of work for Jeffrey Knox. Unless stated otherwise, all lawyers are based in Washington DC.

With a deep bench comprised of ‘strategic thinkers,’ Simpson Thacher & Bartlett LLP advises a broad range of sectors, including, but not limited to food, chemicals and healthcare on their approaches to civil antitrust litigation and dealings with the FTC across issues such as monopolization, tying and price fixing. The practice is led by a five-person team, with New York’s Peter Guryan counting a number of prominent private equity houses among his clients, and both he and Washington DC’s Sara Razi represent clients in litigation against the DOJ and FTC, with DC-based John Terzaken handling civil litigation occurring as a result of regulatory proceedings. Lynn Neuner and Jonathan Youngwood co-chair the firm’s litigation practice out of New York, assisting with civil antitrust disputes. Washington DC-based Abram Ellis, described by a client as a ‘good strategist,’ is noted for his work defending class actions and antitrust disputes concerning financial instruments and the healthcare sector.