Gregory E. Heltzer

McDermott Will & Emery (Washington)
Lawyer (Partner)

Gregory (Greg) Heltzer analyzes the antitrust implications of most transactions involving a publicly traded company – including over 800 in the last decade. Greg focuses his practice on defending mergers and acquisitions and has successfully defended mergers for DaVita, Mars, Martin Marietta Materials, Olam, TreeHouse Foods, Motorola Solutions, Le Duff America, JAB Partners (Coty), Aleris, and Blackboard among others. His advice allows C-Suite decision makers to ensure that time and money are not wasted on potential transactions without a viable path for clearance. When transactions move forward, Greg guides clients through the clearance process with a focus on providing enforcers with the information needed so that the merging parties can avoid or at the very least significantly reduce the scope of a costly/time-consuming Second Request. In addition, he handles complex antitrust litigation, government investigations and antitrust counseling. Greg has experience in all three branches of government. Prior to joining the Firm, he served as a judicial law clerk for the Honorable John A. Terry of the DC Court of Appeals. Before entering law school, Greg worked for the US Environmental Protection Agency in the Energy Star Program. He also served as a legislative intern on the staff of the US Senate Committee on Environment and Public Works under the late Senator John Chafee (R-RI). While in law school, Greg was a member of The Tax Lawyer. Greg also founded McDermott’s Antitrust Alert blog and continues as its managing editor.


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McDermott Will & Emery (Washington)
McDermott Will & Emery (New York)
McDermott Will & Emery (Washington)
McDermott Will & Emery (Washington)


410 Bulletin

Noah Feldman Greene, Gregory E. Heltzer The U.S. FTC announces the launch of a new Technology Task Force to investigate anticompetitive conduct, review past transactions, and contribute to pending merger reviews


THE LATEST: FTC’s New “Technology Task Force” Has Broad Mandate Including Review of Consummated Transactions* The US Federal Trade Commission’s (FTC) Bureau of Competition announced the launch of a new Technology Task Force that will investigate anticompetitive conduct, review past transactions, (...)

C. David Goldman, Gregory E. Heltzer, Joel R. Grosberg The US DoJ requires minor conduct remedies before approving a vertical merger affecting the market for petroleum needle coke (GrafTech / Seadrift)


McDermott Will & Emery lawyers succeeded in obtaining the necessary antitrust approval for clients Seadrift Coke L.P. (Seadrift), the world’s second largest petroleum-based needle coke producer, and C/G Electrodes LLC (C/G), a U.S.-based graphite electrode producer, which have been acquired (...)

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