Jessica K. Delbaum

Shearman & Sterling (New York)
Lawyer (Partner)

Jessica Delbaum is a partner in Shearman & Sterling’s Antitrust Group. Her practice focuses on defending multinational companies’ mergers and acquisitions before the Federal Trade Commission and Department of Justice as well as coordinating the multi-jurisdictional antitrust defense of transactions. Ms. Delbaum also counsels clients on an extensive array of antitrust issues such as competitor collaborations, cartel leniency applications, and Hart-Scott-Rodino Act compliance, including integration planning. Ms. Delbaum has defended substantive merger investigations involving a wide variety of industries, including health care, industrial gases, mining and finance. Prior to joining Shearman & Sterling, Ms. Delbaum was an Attorney General’s Honors Program Attorney in the Antitrust Division of the Department of Justice. While at the Division, Ms. Delbaum investigated possible violations of the antitrust laws involving mergers and acquisitions, the reporting and waiting requirements of the Hart-Scott-Rodino Act and civil price-fixing.


Linked authors

Shearman & Sterling
Shearman & Sterling (Washington)
Manatt, Phelps & Phillips LLP (New York)
Office of the New York State Attorney General (New York)
Winston & Strawn (Washington)
Simpson Thacher & Bartlett (New York)
Shearman & Sterling (Washington)
Shearman & Sterling (Washington)


874 Bulletin

Arjun Chandran, David A. Higbee, Djordje Petkoski, Jessica K. Delbaum, Wayne Dale Collins The US FTC files a complaint challenging a proposed acquisition (Red Venture / Bankrate)


On November 3, 2017, the Federal Trade Commission filed a complaint challenging Red Ventures’ proposed acquisition of Bankrate. The FTC alleged that the deal likely would have lessened competition in the market for thirdparty paid referral services for senior living facilities—even though Red (...)

Jessica K. Delbaum The US FTC raises the thresholds for the Hart Scott Rodino Act


The US Federal Trade Commission (“FTC”) has revised and, once again, raised the thresholds for the Hart Scott Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”). The HSR Act may require that parties to proposed stock or asset acquisitions exceeding certain thresholds file (...)

Beau W. Buffier, Heather Lamberg Kafele, Jessica K. Delbaum, Kelly Karapeytan, Kenneth S. Prince, Lisl J. Dunlop, Wayne Dale Collins The US FTC fines company for failing to file a premerger notification and observe the statutory waiting period (Biglari)


Passive Investors Beware: Recent FTC Fine Affirms Narrow Scope of HSR Exemption * In fining Biglari Holdings $850,000 for failing to file a premerger notification and observe the statutory waiting period in connection with its 2011 purchase of shares of Cracker Barrel, the FTC affirmed that it (...)

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