Peter H. Fountain

Peter H. Fountain is a partner at Quinn Emanuel Urquhart & Sullivan’s New York office, where he represents companies and individuals in high-stakes disputes, with a focus on mergers & acquisitions and financial services litigation. 

Peter has twice been named “Litigator of the Week” by The American Lawyer.  In September 2024, he secured a decisive preliminary injunction win for Ingersoll Rand following its $2.3 billion acquisition of ILC Dover.  That ruling enforced a non-compete in Colorado—a state where non-competes are presumptively void—against ILC Dover’s CEO, who had sought to depart for a competitor just days after the acquisition closed.  In June 2024, Peter obtained an unprecedented public apology from the Internal Revenue Service regarding its unlawful disclosure of Citadel founder Ken Griffin’s confidential tax information. 

Peter’s notable victories also include defeating claims that Citadel Securities conspired with Robinhood to restrict trading in GameStop and other “meme stocks” during the January 2021 short squeeze, where he prevailed at the trial court level and again before the Eleventh Circuit, and obtaining a favorable settlement for Shawn Carter (Jay-Z) in a multi-billion dollar dispute with Bacardi concerning the valuation of Mr. Carter’s 50% ownership of luxury cognac D’Usse.

Prior to joining Quinn Emanuel, Peter was a litigation associate at Cravath, Swaine & Moore and a law clerk for the Hon. Dora L. Irizarry, Chief United States District Court Judge for the Eastern District of New York.  Peter graduated from Columbia Law School, where he was a James Kent Scholar and finalist in the school’s Harlan Fiske Stone moot court competition.