Alex Dimson

Partner - Toronto

Alex has acted for plaintiffs and defendants on a broad range of class actions, including securities, product liability, competition and consumer protection.

P: 416.594.4396 ⋅ F: 416.594.4397 ⋅

Called to the Bar in Ontario, 2009

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About Alex

Prior to joining Siskinds, Alex completed his articles at a plaintiff-side class action boutique and later worked as an associate at a large, national law firm where his practice focused on class action defence. Alex has appeared as counsel at all levels of Ontario courts.

Alex has a diverse class action practice and is currently involved in the prosecution of a variety of securities, competition and consumer class actions.

He is a member of the counsel team prosecuting Rahimi v SouthGobi Resources Ltd., which resulted in an important Court of Appeal decision on the standard for leave under Part XIII.1 of the Securities Act

Alex has been and is currently involved in numerous cases against large financial institutions. He was counsel on Dugal v Manulife, one of the largest securities class actions in Canada to be granted leave on a contested basis, which settled for $69 million on the lead for trial.  He is  part of the team prosecuting the ForEx conspiracy class action, which has recovered $100 million for class members.  He is also prosecuting a case against CIBC Mortgage Inc. related to mortgage prepayment penalties.

He is also involved in various consumer protection cases involving defective products, including a number cases against large car manufacturers.


Alex received his Bachelor of Arts from the University of British Columbia in 2005 and his LLB from Western Law in 2008, where he was the recipient of a number of awards for academic and community participation.

Phone Number 416.594.4396