Christopher is a senior litigation partner in the Disputes, White Collar Defence and Competition/Antitrust and Foreign Investment Groups at Osler. He is recognized by his peers as a leading trial and appellate lawyer in Canada in class action defence, regulatory and criminal enforcement and cross-border litigation.
He is a key contact for the firm’s Class Action Defence Group, and he has acted as lead counsel in a number of the most significant class proceedings across Canada covering claims of anticompetitive conduct, securities violations, insider trading, oppression and derivative claims, misleading advertising, product liability, privacy claims, as well as negligence and fraud.
Christopher has extensive experience litigating complex commercial disputes involving corporate governance, shareholder rights, director and officer liability, auditor’s negligence, valuation proceedings, insurance disputes, privacy and data breaches and professional liability. Christopher has also acted in a number of leading antitrust, securities and disciplinary investigations and enforcement proceedings in Canada, and he regularly acts in matters involving the Competition Bureau, the PPSC, the RCMP, the OSC and CIRO/IIROC. Christopher has law degrees from McGill University and the Harvard Law School, and served as a law clerk for Chief Justice Lamer of the Supreme Court of Canada as well as Justice Morris Fish of the Quebec Court of Appeal.
Christopher is ranked as a leading national litigator and class action defence lawyer in Canada in Chambers Global 2023, Benchmark Litigation Canada 2023 and Best Lawyers in Canada 2023. In his younger days, Christopher was recognized by Lexpert as one of the “Top 40 Under 40” lawyers in Canada in 2007.
Areas of Expertise
Representative Work
- Acted for a leading global bank in respect of multiple class actions relating to precious metals pricing: Di Filippo v. Bank of Nova Scotia, 2024 ONCA 33 (Ontario Court of Appeal).
- Acted for a leading global bank in respect of multiple class actions relating to the pricing of sub-sovereign bonds: Mancinelli v. Bank of America Corporation, 2024 FC 1777 (Federal Court).
- Acted for a global shipping company in respect of regulatory investigations and class actions relating to vehicle carrier shipping: Ewert v. Höegh Autoliners AS, 2020 BCCA 181 and Höegh Autoliners c. Option consommateurs, 2020 QCCA 1548 (B.C. Court of Appeal and Quebec Court of Appeal).
- Acted a leading global travel booking platform in respect of its pricing and disclosure practices, and successfully opposed class certification at first instance and on appeal: Hoy v. Expedia Group, Inc., 2024 ONSC 1462 (Ontario Divisional Court)
- Acted for a leading car rental and mobility company in respect of its employment practices and in defending the largest misclassification ever brought class action in Canada, and successfully opposed class certification at first instance and on appeal: Le Feuvre v Enterprise Rent-A-Car Canada Company, 2023 ONSC 3425 (Ontario Divisional Court).
- Acted a leading meat and protein producer in Canada in successfully opposing multiple attempts at class certification in the class actions in Canada relating to the pricing of packaged bread: David v. Loblaw, 2021 ONSC 7331 and David v. Loblaw, 2024 ONSC 5818 (Ontario Superior Court).
- Acted for a leading international courier and logistics company in respect of its pricing and disclosure practices, and successfully opposed class certification: Vallance v DHL Express (Canada), Ltd., 2024 BCSC 140 (B.C. Supreme Court).
- Acted for the medical association that represents all physicians in Ontario in successfully opposing an application under PIPEDA in respect of the study and negotiation of billing rates in respect of all physicians in the province: Parker v. Ontario Medical Association, 2024 FC 667 (Federal Court).
- Acted for an investment company in securing control of an investment partnership, and obtained complete success after trial: Tridelta Investment Counsel Inc. v. GTA Mixed-Use, 2023 ONSC 5099 (Ontario Superior Court).
- Acted for a global pharmaceutical company in respect of a national class action relating to the pricing and regulation of all generic drugs sold in Canada: Eaton v. Teva Canada Limited, 2021 FC 968 (Federal Court).
- Acted for a manufacturer of chocolate in respect of an ongoing regulatory investigation and parallel antitrust class proceedings throughout Canada.
- Acted for one of the world’s largest energy companies in respect of an ongoing securities class action in Alberta relating to allegations of insider trading contrary to the Securities Act
- Acted for a major international airline in a regulatory investigation and parallel class action proceedings in Ontario, Quebec and B.C. relating to allegations of price-fixing in the global and domestic air freight industry
- Acted for a global producer of dynamic access random memory (DRAM) in a regulatory investigation and parallel class action proceedings in Quebec and B.C. relating to allegations of price-fixing in the computer memory business
- Acted for a leading producer of monitor products in a regulatory investigation and parallel class action proceedings in Ontario, Quebec and B.C. relating to allegations of anti-competitive conduct in the distribution of computer monitor components
- Acted for a leading accounting and consulting firm in ongoing regulatory proceedings involving the OSC, SEC and RCMP relating to allegations of accounting and securities fraud at a global technology company, as well as in respect of cross-border class action proceedings and an ongoing derivative action
- Acted for a major U.S. chemical producer in defending a class action relating to the sale and distribution of engineering resins in the automotive sector
- Acted for a leading national retailer in respect of a representative action brought on behalf of employees who claimed an entitlement to surplus assets within the company’s pension plan, and successfully prevailed before the Supreme Court of Canada: Burke v. Hudson’s Bay Co., 2010 SCC 34 (Supreme Court of Canada).
- Acted for a leading technology company in oppression proceedings relating to the company’s compliance with its articles and share purchase provisions
- Acted a leading meat and protein producer in Canada in successfully opposing multiple attempts at class certification in the class actions in Canada relating to the pricing of packaged bread: David v. Loblaw, 2021 ONSC 7331 and David v. Loblaw, 2024 ONSC 5818 (Ontario Superior Court).
- Acted for a leading international courier and logistics company in respect of its pricing and disclosure practices, and successfully opposed class certification: Vallance v DHL Express (Canada), Ltd., 2024 BCSC 140 (B.C. Supreme Court).
- Acted for the medical association that represents all physicians in Ontario in successfully opposing an application under PIPEDA in respect of the study and negotiation of billing rates in respect of all physicians in the province: Parker v. Ontario Medical Association, 2024 FC 667 (Federal Court).
- Acted for an investment company in securing control of an investment partnership, and obtained complete success after trial: Tridelta Investment Counsel Inc. v. GTA Mixed-Use, 2023 ONSC 5099 (Ontario Superior Court).
- Acted for a global pharmaceutical company in respect of a national class action relating to the pricing and regulation of all generic drugs sold in Canada: Eaton v. Teva Canada Limited, 2021 FC 968 (Federal Court).
- Acted for a manufacturer of chocolate in respect of an ongoing regulatory investigation and parallel antitrust class proceedings throughout Canada.
- Acted for one of the world’s largest energy companies in respect of an ongoing securities class action in Alberta relating to allegations of insider trading contrary to the Securities Act
- Acted for a major international airline in a regulatory investigation and parallel class action proceedings in Ontario, Quebec and B.C. relating to allegations of price-fixing in the global and domestic air freight industry
- Acted for a global producer of dynamic access random memory (DRAM) in a regulatory investigation and parallel class action proceedings in Quebec and B.C. relating to allegations of price-fixing in the computer memory business
- Acted for a leading producer of monitor products in a regulatory investigation and parallel class action proceedings in Ontario, Quebec and B.C. relating to allegations of anti-competitive conduct in the distribution of computer monitor components
- Acted for a leading accounting and consulting firm in ongoing regulatory proceedings involving the OSC, SEC and RCMP relating to allegations of accounting and securities fraud at a global technology company, as well as in respect of cross-border class action proceedings and an ongoing derivative action
- Acted for a major U.S. chemical producer in defending a class action relating to the sale and distribution of engineering resins in the automotive sector
- Acted for a leading national retailer in respect of a representative action brought on behalf of employees who claimed an entitlement to surplus assets within the company’s pension plan, and successfully prevailed before the Supreme Court of Canada: Burke v. Hudson’s Bay Co., 2010 SCC 34 (Supreme Court of Canada).
- Acted for a leading technology company in oppression proceedings relating to the company’s compliance with its articles and share purchase provisions
Latest Insights
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Report June 28, 2024
The amended Canadian Competition Act: what businesses need to know
Following a series of high-profile amendments aimed at strengthening Canada’s competition law regime culminating in royal assent for Bill C-59 on...
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Osler Update June 24, 2025
Private right of access for relief from anti-competitive harm now in force in Canada
The new right of access under the Competition Act represents the broadest expansion of private enforcement of Canada’s competition laws in a...
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Osler Update June 19, 2025
Beyond borders: government grants itself powerful access to data, reduced oversight
Bill C-2 has far-reaching implications for both businesses operating in Canada and civil liberties.
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Webinar December 11, 2024
AccessPrivacy Monthly Call: Data litigation roundtable
In this month’s webinar, Adam Kardash was joined by Chris Naudie, Kristian Brabander, Tommy Gelbman, and Jessica...
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Awards and Recognition
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Chambers Canada: Canada’s Leading Business Lawyers: Recognized in Competition/Antitrust: Litigators; Dispute Resolution: Class Action (Defence)
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Chambers Global: The World’s Leading Lawyers for Business: Recognized in Competition/Antitrust: Litigators
- “Christopher Naudie is commended for the calibre of his litigation practice, and is noted in particular by one source for his capability on “significant cartel cases.” He is well versed in litigating matters before the Competition Tribunal as well as in cartel investigations.”
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The Canadian Legal Lexpert Directory: Recognized in Competition Law; Class Actions
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Best Lawyers in Canada: Recognized in Class Action Litigation; Competition/Antitrust Law; Corporate and Commercial Litigation
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Legal 500: Recognized as a Recommended Lawyer in Competition/Antitrust Law
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Who’s Who Legal: Recognized in Competition (Canada)
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Benchmark Litigation Canada: Recognized in Dispute Resolution; Competition/Antitrust; Class Action (Litigation Star)
Media Mentions
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Osler News May 2, 2025
Osler recognized for outstanding bench strength in the 2025 Benchmark Litigation Canada Guide
Osler is proud to announce that 31 of our lawyers have been recognized in the 2025 edition of the Benchmark Litigation Canada Guide, Benchmark’s...
Read more -
Osler News November 23, 2023
23 Osler lawyers recognized in Lexpert Special Edition: Litigation 2023
23 Osler lawyers featured in the Lexpert Special Edition: Litigation 2023.
Read more -
Osler News January 27, 2020
29 Osler lawyers recognized in Benchmark Litigation 2020
Osler is proud to announce that 29 of our litigation lawyers appear in Benchmark Litigation’s 2020 issue of Benchmark Canada, their annual...
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Osler News April 17, 2018
25 Osler lawyers recognized in Benchmark Litigation 2018
Osler is proud to announce that 25 of its lawyers appear in Benchmark Litigation’s 2018 issue of Benchmark Canada, their annual publication...
Read more
Speaking and Writing
Published Work
- Professionalism Issues in Class Action Litigation, The Law Society of Upper Canada, Class Actions – A Bootcamp for Litigators, October 2, 2014.
- U.S. Supreme Court holds that “reverse payment” patent litigation settlements are not immune from antitrust review, Commercial Litigation and Arbitration Review, vol. 2, no. 3, August 2013 (written with Vincent de Grandpré and Michelle Lally).
- “Obtaining Evidence in Canada for U.S. Litigation” presented at the Cross-Border Litigation Forum in New York City on September 12, 2012 (written with Éric Préfontaine, Kevin O’Brien and Carly Fidler).
- The Certification of Antitrust Class Actions: The Recent Lessons from Canada and The Enduring Appeal of Illinois Brick, American Bar Association, Section of International Law Annual Fall Conference, September 2008.
- Antitrust Class Actions in Canada: The Recurring Obstacles to Certification Under the Shadow of Kingstreet Investments, Canadian Bar Association, Annual Fall Conference on Competition Law, September 2008.
- Cross-Border Investigations and Litigation: How to Protect Your Client in the U.S. and Canada, (Antitrust Law) American Corporate Counsel Association, ACC Webcast, December 2007.
- The OSC Won’t Wait: The Implications of Parallel Criminal and Regulatory Proceedings in Cross-Border Securities Litigation, The Canadian Institute’s 7th Annual Advanced Forum on Securities Litigation, November 2007.
- Regulatory Cooperation with the OSC & SEC: Protecting Your Rights While Minimizing Your Liability, The Canadian Institute’s 6th Annual Advanced Forum on Securities Litigation, November 2007.
Credentials
Education
- Harvard Law School, LL.M.
- McGill University, B.C.L./LL.B. (Gold Medallist)
- McGill University, B.A. (Honours)
Languages
- French
- English
Professional Affiliations
- Canadian Bar Association
- American Bar Association, Section of Antitrust Law
- American Bar Association, Section of International Law
- Advocates Society
- Harvard Law School Association of Toronto, President
