Kristen O'Shaughnessy

Representing manufacturer in multiple class actions alleging price fixing conspiracy.

Lead counsel representing telecommunications company in a dispute involving supplier's anticompetitive use of upstream market power to systematically disadvantage downstream purchasers.

Representing pharmaceutical API supplier in action involving alleged exclusive dealing claims under federal and state antitrust laws.

Representing pharmaceutical company in lawsuit over patent licensing and patent ownership.

Representing telecommunications company in action involving claims of unfair competition and trade secret misappropriation.

Representing innovator pharmaceutical company in multiple antitrust class actions involving allegations of an anticompetitive scheme involving dozens of HIV products, relating to the company's development and launch of new treatments, its collaboration agreements to create new combination therapies, its licensing of patent rights protecting its products, and its settlement of patent infringement litigation.

Representing innovator pharmaceutical company in multiple antitrust class actions involving "reverse payment" and "product hopping" allegations, relating to the company's development and launch of new Alzheimer's treatments, its settlement of patent infringement litigation, and its manufacturing and supply agreements.

Representing innovator pharmaceutical company in multiple antitrust class actions involving "reverse payment" and "product hopping" allegations, relating to oral contraceptives.

Trial counsel for health insurer Anthem in its defense at an expedited merger trial and appeal against claims brought by the US Department of Justice as to Anthem's proposed US$54 billion acquisition of Cigna Corporation. Defended Anthem against Cigna in subsequent break-up fee litigation, in which the Delaware court relived Anthem of any break-up fee obligations based upon Cigna's conduct in opposition to the merger.

Representing an innovator pharmaceutical company in multiple antitrust class actions involving "reverse payment" claims relating to stroke medication, challenging the settlement of patent infringement litigation and the entry of a co-promotion agreement.

Trial counsel representing a global pharmaceutical company in a preliminary injunction hearing in the Southern District of New York in an antitrust action challenging a new-product launch.

Representing innovator pharmaceutical company in multiple class actions involving "reverse payment" allegations with respect to blockbuster cholesterol treatment.

Counseling Kenyan company for compliance with Foreign Corrupt Practices Act, and representation in an anti-corruption audit.

Representing General Counsel in the automotive industry in criminal investigations by the US Department of Justice.

Representing executive in the oil and gas industry in criminal investigations by the US Department of Justice.

Representing innovator pharmaceutical company in antitrust action involving allegations of sham litigation and generic delay relating to epinephrine autoinjector.

Representing innovator pharmaceutical company in multiple antitrust class actions involving "reverse payment" allegations with respect to blockbuster cholesterol treatment.

Representing innovator pharmaceutical company in multiple antitrust class actions involving "reverse payment" allegations with respect to antidepressant treatment.