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Ceci est une photo de Casey Halladay




Contacter par courriel à [email protected]

t. 416-601-4348


Faculté de droit

Université d'Ottawa
Harvard Law School

Admission au barreau

Ontario, 2002
New York, 2006
Solicitor (non-practising), England and Wales, 2009

Disponible en Anglais seulement

Casey provides innovative and creative solutions to complicated legal issues, delivered with passionate advocacy in defence of our clients’ interests.  He takes pride in combining analytical excellence with a pragmatic and business-focused approach to solving problems.

Casey is one of Canada’s leading competition lawyers, with a practice covering all aspects of merger control, cartel defence, unilateral conduct, and competition litigation.  He is known in the market for combining pragmatic advice with a unique analytical approach to competition law issues, derived from practicing competition/antitrust law with leading firms in Toronto, Washington and London.

Casey is recognized as among the world’s leading cartel defence lawyers, has served as Vice-Chair of the ABA/IBA International Cartel Workshop (San Francisco, 2020), and as Co-Chair of Global Competition Review’s GCR Live 5th Annual Cartels conference. He has defended clients in more than 15 different Competition Bureau criminal investigations, including precedent-setting cases such as R. v. Rowe et al. (2004) and R. v. Maxzone Auto Parts (Canada) Corp. (2012). He regularly defends competition class actions before the Canadian courts, leading national teams to coordinate a united strategy across multiple claims, achieving successful outcomes for clients by striking out claims, defeating certification, and negotiating discontinuances; current and past matters include Eyewear, Educational Materials, Fragrances, Realtors, Junior Hockey, Aftermarket Auto Lights, Car Carriers, Capacitors, Bearings, Anti-Vibration Rubber Parts, CVJ Boots, Plastic Interior Trim, HID Ballasts, Optical Disk Drives, and Automotive Lights. He has also litigated civil reviewable practices before the Competition Tribunal.

In his merger control practice, Casey has advised on the Competition Act treatment of more than 200 transactions, including numerous industry-transforming transactions which hinged on successful antitrust clearance. Notable matters on which he has advised include Broadcom/VMware, Rio Tinto/Matalco, Viterra/Gavilon, AstraZeneca/Alexion, WESCO/Anixter, United Technologies/Raytheon, Thoma Bravo/Aucerna, Luxottica/Essilor, GE/Baker Hughes, Hitachi/Bradken, Schlumberger/Cameron, Air Canada/Air China (cross border joint venture), Halliburton/Baker Hughes (proposed), Novartis/GlaxoSmithKline (oncology, vaccines and consumer health transactions), Transcontinental/Quebecor, American Airlines/US Airways, Schlumberger/Smith, Oracle/PeopleSoft, Carnival/Princess, Bertelsmann/Zomba, and Chevron/Texaco. While practicing abroad, Casey advised on several significant Phase II matters in Europe and the United States, and co-ordinated international merger clearances in numerous jurisdictions around the world.

Casey earned his LLB, summa cum laude, from the University of Ottawa and his LLM from Harvard Law School, where his LLM paper on competitor collaborations under the US Sherman Act was chosen as a finalist in the international Swope Antitrust Writing Competition. He is a long-time member of the Leadership of the ABA Section of Antitrust Law, including serving as the Non-US Lawyer member of its governing Council, and is recognized as a leading practitioner by the primary domestic and international legal directories. A native speaker of English, Casey also speaks Italian and French, and has a conversational grasp of Russian and Bulgarian.  He is admitted to practice in Ontario, New York, and England and Wales.