Harlan Rosenson
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Harlan Rosenson

Associate

Email

harlan.rosenson@aoshearman.com

Phone

+1 212 848 7876

Offices

New York

V-CARD
Harlan focuses on defending mergers and acquisitions before the US Federal Trade Commission, the US Department of Justice, US state antitrust authorities and other competition authorities around the world as well as coordinating the multi-jurisdictional antitrust defense of transactions.

He advises acquirers, targets, and third-party clients in navigating the antitrust regulatory clearance process and counsels clients on an extensive array of antitrust issues such as integration planning, competitor collaborations and business conduct and compliance issues.

Prior to joining the firm, Harlan worked as an associate in the antitrust practice group of another large U.S. based international law firm.

Expertise

Industries

Experience

Representative matters

  • Chevron on competition matters in its $53 billion acquisition of Hess Corp.
  • JetBlue Airways in its proposed $3.8 billion acquisition of Spirit Airlines.
  • Dover Corporation in its $530 million acquisition of FW Murphy Production Controls.
  • Saks Fifth Avenue in successfully securing a motion to dismiss without prejudice for Saks and co-defendant luxury retail brands in an alleged "no-poach" antitrust class action in which Plaintiffs claimed Saks orchestrated "no hire" agreements with each luxury brand (previous firm experience).
  • Bio-Rad Laboratories against post-merger antitrust counterclaims raised by defendant in a patent infringement litigation, in which the court rejected several of the defendant's antitrust claims leading the parties to reach a global settlement and agree to a lifetime cross-licensing agreement regarding the patents-in-suit (previous firm experience).
  • MGM Resorts International on multiple transactions, including its $1.625 billion acquisition of the operations of The Cosmopolitan of Las Vegas from Blackstone, the sale of operations of The Mirage to Hard Rock International for $1.075 billion (previous firm experience).
  • Microsoft in $68.7 billion acquisition of Activision Blizzard (previous firm experience).
  • MBCC in acquisition by Sika (previous firm experience).
  • Bio-Rad Laboratories, in an antitrust probe related to its $125 million acquisition of DropWorks (previous firm experience). 

Published Work

  • Rosenson, Harlan, Co-author. (2024) “DOJ Seeks Rare $3.5M ‘Gun Jumping’ Penalty Against Legends Hospitality for Pre-Closing Conduct in Connection with Acquisition of ASM Global,” The M&A Lawyer
  • Rosenson, Harlan, Co-editor. (2021) “Getting The Deal Through: Class Actions” Lexology (6th ed.) 

Leadership Positions And Professional Affiliations

  • Member, American Bar Association Antitrust Law Section
  • Member, New York State Bar Association Antitrust Law Section     

Qualifications

Admissions

Attorney-at-Law, New York, 2016

Courts

United States District Court for the Eastern District of New York

United States District Court for the Southern District of New York

Academic

B.A., cum laude, Rutgers University, 2010

J.D., Northwestern University School of Law, 2015

Disclaimer
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.