Mr Abram Ellis > Simpson Thacher & Bartlett LLP > Washington DC, United States > Lawyer Profile

Simpson Thacher & Bartlett LLP
United States
Abram Ellis photo

Work Department

Litigation/Antitrust and Trade Regulation


Recognized as a “Rising Star” and “Next Generation Lawyer” in antitrust litigation, Abram Ellis is a Partner in the Firm’s Washington, D.C. office. His practice comprises all aspects of competition law, from defending clients against complex class action antitrust litigation to helping clients obtain regulatory clearance from domestic and international competition authorities for significant transactions. An integral member of the “Antitrust Team of the Year” (Chambers USA 2016),  Abram is particularly experienced in antitrust litigation involving complex financial instruments, the healthcare industry and employment issues. In addition to his robust antitrust practice, Abram advises leading private equity funds, financial institutions and major corporations on regulatory and compliance matters relating to cross-border activities, including with respect to OFAC, FCPA and export matters. Recent representations include: McKesson in dismissal of antitrust class action concerning alleged price-fixing conspiracy among manufacturers of generic pharmaceuticals; Micron in dismissal of a proposed antitrust class action alleging a conspiracy involving DRAM; HCA in pending antitrust litigation in North Carolina state and federal court alleging HCA engaged in monopolistic conduct in violation of state and federal antitrust laws; representing Change Healthcare in the DOJ’s challenge of UnitedHealthGroup’s proposed acquisition of Change Healthcare; HCA in the FTC’s challenge of HCA’s proposed acquisition of certain hospital assets from Steward Healthcare; Covestro in antitrust class actions involving MDI and TDI; JPMorgan in antitrust and CEA class actions concerning the alleged manipulation of LIBOR; ISDA in antitrust class actions and government investigations concerning credit default swaps; and Tyson Foods in a wage fixing antitrust class action alleging a decade-long conspiracy to fix wages.


University of Michigan Law School (J.D., cum laude, 2005); Johns Hopkins School of Advanced International Studies (M.A., 2002), John C. Foster Award, SAIS Review Book Review Editor; Brigham Young University (B.A., 2000).

Lawyer Rankings

United States > Antitrust > Cartel

(Next Generation Partners)

Abram Ellis

Simpson Thacher & Bartlett LLP

Simpson Thacher & Bartlett LLP is active in major new and ongoing antitrust investigations, working with clients across highly scrutinised industries including fintech, financial services, proteins and healthcare, on DOJ and FTC investigations into cartel activity, also regularly representing clients in litigation and against enforcement proceedings. Specific strengths for the firm include global compliance programs and internal investigations, inspections and dawn raids support, and most notably leniency applications, which the team has a successful record in. The practice is overseen by Washington DC-based John Terzaken, whose expertise spans market sector investigations and litigation in all major industries, including standout representations in the financial services and fintech spaces, and Sara Razi, who handles cartel investigations and merger-related antitrust questions alongside civil enforcement, alongside New York’s Peter Guryan, who combines litigation and investigations expertise. DC’s Jeffrey Knox is another high-profile practitioner who represents multinationals and their executives in high-profile and high-stakes investigations, marrying his experience in the cartel space to his strong record in white-collar criminal cases. Also in DC, Abram Ellis is a leader in the field of follow-on cartel damages litigation.

United States > International Trade > International trade

The national security regulatory practice at Simpson Thacher & Bartlett LLP is regularly sought after by major corporates, private equity sponsors and state-owned enterprises to advise on transactional matters. The team frequently acts in conjunction with the firm’s corporate and M&A groups to assist with CFIUS-related issues with significant expertise in deals involving elaborate investment structures. Washington DC-based department head Malcolm Tuesley is a ‘very experienced CFIUS expert‘ and his experience spans major transactions in the defense, energy, financial services, telecoms and technology fields. The group also handles economic sanctions and export controls matters, with Washington DC-based antitrust and regulatory specialist Abram Ellis recommended in this regard. New York-based litigator George Wang also advises on international regulatory and compliance matters.

United States > Antitrust > Civil litigation/class actions: defense

(Next Generation Partners)

Abram EllisSimpson Thacher & Bartlett LLP

With ‘a good mix of highly skilled partners, mid-level partners and associates’, Simpson Thacher & Bartlett LLP sports an antitrust practice that defends clients across every major industry with a deep understanding of both the DOJ and FTC. Having opened an office in Brussels in summer 2021, the firm has strengthened its international reach through close collaboration of the Brussels team with the US offices. Sara Razi and John Terzaken in Washington DC, as well as New York-based Peter Guryan head the antitrust and trade regulation practice. Also in New York, Lynn Neuner was recently appointed global co-chair of the firm’s litigation department alongside Jonathan Youngwood, whose expertise spans securities litigation and corporate control in addition to antitrust. DC-based Abram Ellis excels at antitrust matters related to financial instruments, employment issues, and the healthcare industry.