Douglas Worndl

Partner - Toronto

Doug has been an advocate and litigator for more than 25 years, focusing on securities class actions, commercial dispute resolution and aviation-related litigation.


Called to the Bar in 1989

  • About Douglas
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  • Notable Work & Decisions
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About Douglas

Doug Worndl is a partner in Siskinds’ Securities Class Actions Group. Doug also maintains a corporate/commercial and aviation litigation practice. Since joining Siskinds in January 2011, he has concentrated on investor recovery litigation by way of class actions asserting claims pursuant to Part XXIII.1 and Part XXIII of the Ontario Securities Act (“OSA”) and other statutory and common law remedies. Clients include retail and institutional investors who have suffered losses as a result of breaches of duty by capital markets participants including issuers and their officers and directors, and gatekeepers such as auditors and underwriters.

He has acted as co-counsel on class actions seeking investor recovery relating to issuers Baffinland Iron Mines Corporation, Zungui Haixi Corp., SNC-Lavalin Group Inc., Donnybrook Energy Inc., BCE Inc., and Canadian Solar Inc.

He has appeared on many motions, applications and appeals in respect of these matters including successfully arguing one of the very few contested “leave” motions under OSA Part XXIII.1 (Canadian Solar).

He has prosecuted and defended oppression and related shareholder proceedings under the Canada Business Corporations Act, the Ontario Business Corporations Act, and the Canada Cooperatives Act.

Doug is a frequent writer, speaker and lecturer on securities law and policy, particularly in the areas of enforcement, investor protection, investor recovery and statutory civil liability. He has appeared before the Ontario Securities Commission to make submissions regarding the proposed “no-contest settlement” initiative.  He has been an Op-ed contributor to the Globe and Mail Report on Business on securities enforcement issues and is a frequent guest lecturer at the Osgoode Hall Law School LL.M. Program on Corporate Governance and Business Law.

Before joining Siskinds, Doug practiced for more than 19 years (+15 years as a partner) at Canada’s largest law firm, Borden Ladner Gervais, where his practice focused on corporate/commercial, product liability, aviation and securities litigation. Before joining BLG, Doug was Counsel and Director of Research to the Federal Commission of Inquiry into the Air Ontario Crash at Dryden, Ontario (1989-1991).  This Judicial Inquiry headed by Justice Virgil Moshansky was formed by the Government of Canada as an independent inquiry into the contributing factors and causes of the March 10, 1989 Air Ontario crash of a Fokker F-28 in which 24 individuals perished. This was a two and one half year engagement involving more than 160 hearing days, and multi-volume report to Parliament which served as catalyst to substantial improvements in aviation safety in Canada.

Doug has appeared before all levels of court in Ontario, the Alberta Court of Queen’s Bench, The Supreme Court of British Columbia, and in the Supreme Court of Canada and on a number of private commercial arbitrations.


LL.B. University of Toronto Faculty of Law, Osgoode Hall Law School LL.M, Securities

"Having practiced for close to twenty years at a very large corporate law firm representing institutional clients, it has been a wonderful new chapter in my career to  join Siskinds to advocate on behalf of individuals. All clients deserve the best available representation, and I and the Siskinds team are privileged to be able to provide it."

— Doug Worndl

Phone Number 416.594.4379