Latham & Watkins Advises Long Lake in Completed US$6.3 Billion Acquisition of American Express Global Business Travel September 30, 2

Global Business Travel Group, Inc. (NYSE: GBTG) (Amex GBT) has announced the completion of its acquisition by Long Lake Management (Long Lake) in an all-cash transaction valuing the company at approximately US$6.3 billion. The acquisition was previously announced on May 4, 2026, and approved by Amex GBT stockholders at the Special Meeting of Stockholders held on August 3, 2026.

Latham & Watkins LLP represents Long Lake in the transaction with a corporate team led by New York partner Ian Nussbaum, Chicago partner Sean Parish, Bay Area partner Seth Gottlieb, New York partner Julian Azran, and Bay Area partner Tad Freese, with associates Brian Baloun, Rheem Brooks, Nancy Zhu, Matthew Galligan, Noah Hellum, Irena Huang, Cyrie Wilson, Eric Winnestaffer, Andrew Zandomenego, and Stephanie Lim. Advice was also provided on capital markets matters by New York partners Peter Sluka and Salvatore Vanchieri, with associate Ian Lachow; on anti-corruption and anti-bribery matters by Chicago partner Meredith Monroe, with associates Patricia Amselem Bensadon and Mary-Grace Rees; on antitrust matters by Washington, D.C. partner David Brenneman, with associate Brian Goodell; on ex-US antitrust matters by Brussels partner Philipp Studt and counsel Wesley Lepla, with associates Luca Feltrin and Telmo Iriondo; on banking regulatory matters by New York partner Arthur Long and London/New York counsel Pia Naib; on benefits matters by New York partner Max Raskin, with associate Peter Dalmasy and assistance from Amelia Best; on sanctions matters by Washington, D.C. partner Paul Rosen and counsel Ruchi Gill, with assistance from Stephen Keith; on emerging companies and growth matters by associates Eric Znotins, Kristine LaVeau, and Isaac Gonzalez; on data privacy and cybersecurity matters by Houston partner Robert Brown and London partner Calum Docherty, with associates Jia Hao Clarence Cheong, and Madhavi Nambiar; on environmental matters by Houston/Los Angeles partner Joshua Marnitz, with associate Brian McCall; on France corporate matters by Paris partner Pierre-Louis Cléro, with associates Aymerick Fradin and Elie Hamady; on France labor and employment matters by Paris partner Matthias Rubner and counsel Romain Nairi, with associate Alice Brisset; on Germany corporate matters by Munich partner Rainer Traugott, with associate Sara Collorio; on Germany labor and employment matters by Munich partner Tobias Leder, with associate Julian Traub; on government contracts matters by Washington, D.C. partner Kyle Jefcoat; on Hong Kong corporate matters by Hong Kong partner Zhonghua (Stephen) Shi, with associate Ka Yiu (Stephanie) Li; on intellectual property matters by New York partner Pelin Serpin, with associate Laura Geraci; on Italy corporate matters by Milan partners Stefano Sciolla and Andrea Stincardini, with associates Filippo Bernasconi and Nicholas Luraghi; on labor and employment matters by Chicago partner Nineveh Alkhas, with associates Jenny Bobbitt and Alexis Pinzon; on litigation matters by New York partner Sarah Lightdale, with assistance from Sebastian Peskind; on People’s Republic of China corporate matters by Beijing counsel Liyun (Louise) Deng, with associate Yunfeng (Vincent) Jiang*; on real estate matters by Chicago counsel Margaret Linkous, with associate Rebekah Biddle; on sanctions and export controls matters by Washington, D.C. partner Andrew Galdes, with associates Matthew Crawford and Alexander Perkowski; on Singapore corporate matters by Singapore partner Farhana Sharmeen, with associate Kay Howe Lee**; on Spain corporate matters by counsel Luis Lozano, with associates Lucía De Bustos and Ana María Merino; on Spain labor and employment matters by Madrid partner Naiara Rodríguez-Escudero, with associate María Goñi; on Spain real estate matters by Madrid counsel Veronika Miskovichova, with associate Sofía Segarra; on tax matters by Bay Area partner Katharine Moir; on UK commercial matters by London partner Christian McDermott, with associates Callum Lee and Dal Lim***; on UK corporate matters by London partner Harriet Stephenson, with associate Emma Leatherbarrow; and on UK employment and benefits matters by London partner Kendall Burnett, with associates Ismay Keane and Joseph Goddard.