Canada: Class Actions

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Litigation law, mediation law, and arbitrage law thought leadership, articles, podcasts, videos and webinars from expert sources across the legal world. Explore insights covering civil law, class actions, dispute resolution, libel and defamation and more in relation to litigation, mediation and arbitration.

Come Fly With Me: Non-Resident Class Plaintiff Picks Litigation Travel Companion For BC Class Proceedings

The British Columbia Court of Appeal has confirmed in Prince George Airport Authority Inc. v. Roy...

Canada Litigation

ML

McMillan LLP

BC Court Of Appeal Dismisses Proposed Privacy Class Action; Finds Use Of Professionals' Names Was Not Commercial Exploitation

In RateMDs Inc. v. Bleuler, 2025 BCCA 329, the BC Court of Appeal overturned certification of a proposed privacy class action, finding that the plaintiff's novel claims that use of health professionals' names...

Canada Litigation

BJ

Bennett Jones LLP

Contracting Out Of Accountability? When Crypto Meets Canadian Courtroom Control

In a decisive ruling, Lochan v Binance Holdings Ltd., the Ontario Superior Court reinforced its judicial authority over global arbitration forums, and granted an anti-suit injunction...

Canada Litigation

AG

Affleck Greene McMurtry LLP

Ontario Court Of Appeal Says That Plaintiffs Cannot Amend Instead Of Appeal

In David v. Loblaw Companies Limited, 2025 ONCA 830, the Ontario Court of Appeal delivered a clear warning to class plaintiffs: a certification denial for failing to plead a cause of action is final.

Canada Litigation

BJ

Bennett Jones LLP

Comity And Crypto: Court Blocks Binance's Arbitration Gambit

Canada Litigation

TL

Torys LLP

Litigation Plans Matter: Players' Appeal Denied In Ontario Junior Hockey League Class Action

Canada Litigation

BL

Borden Ladner Gervais LLP

Artificial Intelligence

Canada Technology

TL

Torys LLP

Supreme Court Of Canada Upholds Ontario Court Of Appeal Definition Of Material Change

Canada Litigation

AG

Affleck Greene McMurtry LLP

The Appeal Of Bread: The Court Of Appeal For Ontario Weighs In On The Effects Of Class Action Certification

Canada Litigation

MT

McCarthy Tétrault LLP

TikTok's Unauthorized Data Practices May Breach Privacy Rights

Canada Media & IT

SL

Siskinds LLP

Un changement important? La Cour suprême du Canada se penche sur la définition d'un « changement important » en vertu de la législation canadienne en valeurs mobilières

Canada Litigation

MT

McCarthy Tétrault LLP

SCC's Lundin Decision Signals Broad, Contextual Approach To "Material Change"

Canada Commercial

BD

Burnet, Duckworth & Palmer LLP

Restructuring The Canadian Tobacco Industry: A Model For The Future?

Canada Insolvency

OH

Osler, Hoskin & Harcourt LLP

SCC Affirms Broad And Contextual Interpretation Of "Material Change"

Canada Litigation

GL

Goodmans LLP

Est-ce que les terrains des municipalités ontariennes sont à l'abri de la possession adversative? Leçons de l'arrêt Kosicki c. Toronto

Canada Real Estate

MT

Miller Thomson LLP

Aboriginal Title Over Private Lands: Legal Uncertainty After Recent Court Decisions

Canada Government

BC

Blake, Cassels & Graydon LLP

Canada's New Citizenship Rules Explained: What Bill C-3 Means For Canadians Born Abroad

Canada Immigration

DS

Devry Smith Frank LLP

Big Changes Planned For Express Entry 2026

Canada Immigration

Moving2Canada

Changes In Leave Entitlements: Federal, Saskatchewan And British Columbia Updates For 2025–2026

Canada Employment

OH

Osler, Hoskin & Harcourt LLP

A Material Change To The Meaning Of "Material Change"? – Practical Takeaways From The SCC's Decision In Lundin Mining Corp. v. Markowich

On November 28, 2025, the Supreme Court of Canada (SCC or the Court) released its decision in Lundin Mining Corp. v. Markowich addressing the distinction between "material facts" and "material changes."

Canada Commercial

D

Dentons Canada LLP

When Is A Change Material? The Supreme Court Of Canada Clarifies Timely Disclosure Obligations In Lundin Mining Corp. V. Markowich

On November 28, 2025, the Supreme Court of Canada (the "SCC") released its decision in Lundin Mining Corp. v. Markowich, 2025 SCC 29, providing important guidance to publicly traded companies...

Canada Commercial

WD

Wildeboer Dellelce LLP

A Material Development? The Supreme Court Of Canada Addresses The Definition Of A "Material Change" Under Canadian Securities Legislation

The Supreme Court of Canada has arguably broadened the scope of continuous disclosure standards for issuers, in the context of allowing an investor class action to proceed to trial

Canada Litigation

MT

McCarthy Tétrault LLP

Supreme Court Of Canada Considers The Meaning Of "Material Change" In Canadian Securities Law And Clarifies The Test For Leave To Proceed With A Secondary Market Securities Class Action

On November 28, 2025, the Supreme Court of Canada released its highly anticipated decision Lundin Mining Corporation v. Markowich,1 addressing the meaning...

Canada Litigation

D

Dentons Canada LLP

Lundin Mining v. Markowich: Has There Been A Material Change To "Material Change"?

Canada Commercial

BL

Borden Ladner Gervais LLP

Court Says No To End Run: Hong Kong Arbitration Blocked In Binance Class Action

Canada Litigation

LS

Lenczner Slaght LLP

Causation In Sexual Abuse Claims - The Litigator - Fall 2025

Canada Litigation

LL

Lerners LLP

Overbroad Summons Thrown Overboard: Charter Limits To The OSC's Investigatory Powers

Canada Commercial

LS

Lenczner Slaght LLP

Canadian Class Actions 101: What You Need To Know

Worldwide Litigation

TL

Torys LLP

Ontario Court Reaffirms That Compensable Loss Is A 'Fundamental Prerequisite' To Certification Of A Class Action

Canada Litigation

OH

Osler, Hoskin & Harcourt LLP

Class Actions Landscape In Canada: 2025 Mid-year Update

Canada Litigation

TL

Torys LLP

Court Of Appeal Summaries (October 20 – 24, 2025)

Canada Litigation

BM

Blaney McMurtry LLP

Class Actions: Top Ontario And Federal Cases In Q3 2025

Canada Litigation

AB

Aird & Berlis LLP

The Continuing Challenge Of Causation In Climate Litigation

Canada Litigation

F

Fasken

Class Actions Landscape In Canada: 2025 Mid-year Update

Class actions continue to shape the Canadian legal landscape. As we head toward the end of 2025, we note the following developments emerging from the class actions landscape across Canada so far this year

Canada Litigation

TL

Torys LLP

Court Of Appeal Summaries (October 20 – 24, 2025)

The appellants argued that the motion judge erred in her contextual analysis.

Canada Litigation

BM

Blaney McMurtry LLP

Class Actions: Top Ontario And Federal Cases In Q3 2025

Q3 2025 brought a range of important legal decisions shaping Ontario and federal class actions. Our summary of key rulings from the quarter includes several appellate decisions...

Canada Litigation

AB

Aird & Berlis LLP

The Continuing Challenge Of Causation In Climate Litigation

As climate litigation develops both domestically and internationally, the issue of causation remains contentious.

Canada Litigation

F

Fasken

Unveiling The Hidden Risks: How CVCs Can Cause Serious Harm To Patients

Canada Litigation

SL

Siskinds LLP

October Timely Topics: Drip Pricing Class Action Implications, Key Product Liability Cases, The Latest In U.S. Tariffs, And More

In a significant development for consumer protection and pricing practices, the Federal Court has certified the first class action under Canada's drip pricing provisions in Deane v. Canada Post...

Canada Consumer

MT

McCarthy Tétrault LLP

Novel Privacy Claims And The Limits Of Class Action Certification: RateMDs Inc. v. Bleuler, 2025 BCCA 329

On Sept. 22, 2025, the British Columbia Court of Appeal in RateMDs Inc. v. Bleuler, 2025 BCCA 329 issued its appeal decision setting aside the certification of a class action granted by the court below.

BL

Borden Ladner Gervais LLP

Class Actions In Canada: At The Forefront Of Pharma Litigation (Video)

The latest video from our Class Action Litigation group breaks down key procedural contrasts, new legislative risks, and creative defence strategies shaping pharma litigation in Canada today.

Canada Litigation

F

Fasken

AI Class Actions In Canada: New Legal Ground Or The Same Old Claims?

Across Canada, class action claims are being commenced against companies for their use (or alleged use) of AI tools and technology.

Canada Technology

TL

Torys LLP

Actions collectives au Canada : à l'avant-plan des litiges pharmaceutiques (Video)

Canada Litigation

FF

Fasken (French)

Yes, You Can Be Sued In A Securities Class Action When A Public Correction Causes No Price Decline

Canada Litigation

MT

McCarthy Tétrault LLP

Court Of Appeal Summaries (September 22-26, 2025)

Canada Litigation

BM

Blaney McMurtry LLP

Class Actions Landscape In Financial Services

TL

Torys LLP

What Longair v. Akumin Means For Issuers: Disclosure, Market Efficiency And Liability Risks

Canada Litigation

D

Dentons Canada LLP

Episode 23: Tataryn And Barbiero : Dismissing Class Actions For Delay (Podcast)

Canada Litigation

MT

McCarthy Tétrault LLP

Securities Class Action: Court Of Appeal Clarifies Public Correction Requirements

Canada Commercial

AG

Affleck Greene McMurtry LLP

Deane v. Canada Post : la décision d'autorisation d'un recours collectif en matière d'indication de prix partiel est portée en appel

Canada Anti-trust

MT

McCarthy Tétrault LLP

Trauma-Informed Practices In Class Action Claims Administration

Canada Litigation

HS

Howie, Sacks & Henry LLP

Contaminated Cooling Towers Cause Multiple Outbreaks Of Legionnaires' Disease In London, Ontario

Canada Healthcare

SL

Siskinds LLP

Deane v. Canada Post: Critical Drip Pricing Class Certification Decision Is On Appeal

Canada Litigation

MT

McCarthy Tétrault LLP

Statistically Significant, Or It Didn't Happen? Corrective Disclosure Under The Securities Act

Canada Litigation

LS

Lenczner Slaght LLP

Court Of Appeal Summaries (September 1 – September 5)

Canada Litigation

BM

Blaney McMurtry LLP

Canadians Begin Receiving Payments From $78M Auto Parts Class Action Settlement

Canada Litigation

SL

Siskinds LLP

Court Of Appeal Clarifies Meaning Of Public Correction In Upholding Decision Allowing Securities Class Action To Proceed

Canada Litigation

AG

Affleck Greene McMurtry LLP

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Latest Videos

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Class Actions In Canada: At The Forefront Of Pharma Litigation (Video)

F

Fasken

Actions collectives au Canada : à l'avant-plan des litiges pharmaceutiques (Video)

FF

Fasken (French)

What Is A Class Action Lawsuit? What Is A Mass Tort Action? What's The Difference? (Video)

GP

Gluckstein Lawyers

ESG And Shareholder Activism: Key Tips For Issuers (Video)

OH

Osler, Hoskin & Harcourt LLP

BD&P's Deep Bench Strength For Class Action Litigation (Video)

BD

Burnet, Duckworth & Palmer LLP

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