Allison K. Kostecka is a senior associate in the Denver office of Gibson, Dunn & Crutcher.  She practices in the firm’s litigation department, where she focuses on complex commercial litigation, antitrust investigations and litigation, securities litigation, data privacy, and transnational litigation.

Allison has represented clients in a variety of antitrust and consumer protection matters before administrative bodies and federal courts, including representing a large oil and gas company conducting an internal investigation into allegations involving bid rigging for state leases of oil and gas parcels.  Allison also worked to successfully secure the dismissal of antitrust claims that were initiated against a global manufacturing and supply company by three former competitors.  In addition to working with clients from a variety of industries on data privacy and cybersecurity issues, Allison is currently defending a large social networking company against allegations of privacy violations by the Federal Trade Commission. 

Allison has defended multiple companies in derivative lawsuits and securities class actions before federal and state courts and, for the past nine years, has represented a large energy company in multiple federal court actions that exposed a fraudulently obtained, multi-billion dollar judgment against the company.  In addition to working on extensive discovery and both pre-and post-judgment motions practice related to this transnational matter, Allison was on both the trial and appellate teams.   Allison continues to represent that same client in multiple U.S. actions involving climate change. 

Allison earned her law degree magna cum laude from Duke University School of Law in 2010.  Allison graduated summa cum laude from the University of Colorado with degrees in political science and journalism.

Ms. Kostecka is registered to practice law in the State of Colorado, as well as in the U.S. Courts of Appeal for the Tenth and Eleventh Circuits and the U.S. District Court for the District of Colorado.