ASC Members

Stan Magidson Chair and Chief Executive Officer

Stan Magidson, ICD.D
Office of the Chair and Executive Officer

Mr. Magidson is Chair and Chief Executive Officer (CEO) of the Alberta Securities Commission, and possesses extensive experience in corporate governance and securities law and regulation. Before joining the ASC in July 2016, he was President, CEO and director of the Institute of Corporate Directors and Chair of the Global Network of Director Institutes. Prior, Mr. Magidson was a partner for 21 years with a national law firm in the business law group where he advised corporate issuers, investors, financial intermediaries and boards of directors across the country on securities law, corporate finance, mergers and acquisitions and corporate governance matters. Mr. Magidson currently serves on the international board of the Weizmann Institute of Science and the board of Weizmann Canada. Mr. Magidson holds an LL.M in Corporate Law from New York University and an LL.B from the University of Ottawa.

Tom Cotter ASC

Tom Cotter
Vice-Chair

Mr. Cotter was appointed Vice-Chair in April 2014. Prior to his employment with the Commission Mr. Cotter was a partner in the business law group with a national law firm, where he advised companies and investment firms on public offerings, private placements, cross-border financings, mergers and acquisitions, reorganizations, recapitalizations, going-private transactions, corporate governance, proxy contests and regulatory compliance.

Kari Horn ASC

Kari Horn
Vice-Chair

Ms. Horn was appointed Vice-Chair in May 2018. She possesses over 23 years of experience in the legal profession and an extensive background in securities law and regulation. Prior to her appointment to Vice-Chair Ms. Horn was a member of the ASC’s senior management team as General Counsel since 2005. In this role, she led the group responsible for providing specialized legal advisory services to the Commission, staff, and market participants. She also assisted in formulation of the Commission’s strategic policy direction and provided research and advice on emerging issues. Before joining the ASC, Ms. Horn practised securities and corporate law as a partner at TingleMerrett LLP, and as an associate at Blake, Cassels & Graydon LLP. Ms. Horn holds degrees in business and law from Bishop’s University and the University of Victoria, respectively.

  Matthew Bootle, FCA

Matthew Bootle, FCA

Mr. Bootle became a member in April 2019 and serves on the ASC’s Audit Committee. A retired partner with Ernst & Young LLP, Mr. Bootle has over 30 years of experience as a financial and legal professional. He is a former Director of Accounting Standards and Director of Policy at the TSX Venture Exchange and returns to the ASC where he served as Chief Accountant from 1993 to 1997. Mr. Bootle is a Fellow of the Chartered Professional Accountants of Alberta (CPA Alberta) and received a CPA Alberta Distinguished Service Award in 2012. He received a Bachelor of Commerce and Bachelor of Laws from the University of Calgary, where he is presently pursuing a Master’s degree in Adult Education.

Kate Chisholm ASC

Kathryn (Kate) Chisholm, Q.C., ICD.D 

Lead Independent Member

Ms. Chisholm became a Member in April 2015 and serves on the ASC's Governance Committee, Audit Committee and Human Resources Committee. She possesses more than 25 years of experience in the legal profession and is the senior vice-president, Legal and External Relations at Capital Power where she leads the organization’s legal, regulatory, government, stakeholder and media relations functions. A member of several boards, Ms. Chisholm is currently the Regional Chair for Legal Leaders for Diversity, the founder and Chair of MORE Mentoring Program for Young Female Professionals and is a member of the Mayor’s Taskforce of the Elimination of Poverty (Edmonton). In addition to a law degree from the University of Alberta, Ms. Chisholm holds a Master of Business Administration from Queen’s University. She was appointed Queen’s Counsel in 2010 for her outstanding contributions to the legal profession and public life, and in 2014 was named one of Canada’s Top 100 Most Powerful Women by the Women’s Executive Network.

Steven Cohen

Steven Cohen, LL.B

Mr. Cohen became a Member in April 2018 and serves on the ASC's Governance Committee. He has over 35 years of experience in the legal profession and is currently a partner in the securities group at Burnet, Duckworth & Palmer LLP, focusing on capital markets activities, where he advises issuers, investment firms and other market participants on public offerings, private placements, mergers and acquisitions, reorganizations, recapitalizations, corporate governance, proxy matters and regulatory compliance. Mr. Cohen has served on advisory committees of both the ASC and the Ontario Securities Commission. He holds an LL.B from the University of Toronto.

Raymond Crossley ASC

Raymond Crossley, CPA, CA, ICD.D

Mr. Crossley became a Member in April 2018 and serves on the ASC's Governance Committee. He is a highly experienced financial professional and corporate director. He is currently the Chief Financial Officer of the Calgary Health Trust, and also serves on the board of directors of Obsidian Energy Ltd. and the Canada West Foundation. Before retiring from PwC in 2015, Mr. Crossley served as Managing Partner, Western Canada and was the audit partner on a broad range of public companies primarily in the energy sector. Prior to becoming a partner, Mr. Crossley worked in PwC’s offices in Toronto, New York and London. He has previously served as a member of the ASC’s Financial Review Committee and the Financial Advisory Committee. Mr. Crossley holds the ICD.D designation from the Institute of Corporate Directors and is a member of the Institute of Chartered Professional Accountants of Alberta. He graduated from the University of Western Ontario with a degree in Economics and Political Science.

Trudy Curran

Trudy Curran, ICD.D

Ms. Curran became a member in May 2017 and serves on the ASC’s Human Resources Committee. She has over 30 years of experience as a legal professional and business leader across a wide range of industries including energy, mining and transportation. Most recently, she was senior vice-president, general counsel and corporate secretary of Canadian Oil Sands Limited. Now serving as a professional director, Ms. Curran sits on the board of directors for the Riversdale Resources Ltd., and Baytex Energy Corp. Ms. Curran holds an LLB with Distinction from the University of Saskatchewan College of Law. She also holds the Institute of Corporate Directors designation and serves on the executive committee of the ICD’s Calgary chapter.

Gail Harding, Q.C., ICD.D

Gail Harding, Q.C., ICD.D

Ms. Harding became a member in April 2019 and serves on the ASC’s Audit Committee. Ms. Harding possesses over 30 years of experience as a financial services executive and corporate lawyer. Most recently, she served as Senior Vice President, Chief Legal Officer and Corporate Secretary at Canadian Western Bank Financial Group. Previously, Ms. Harding was an equity partner at Fraser Milner Casgrain LLP and Legal Counsel and Exchange Secretary at the Alberta Stock Exchange. She has extensive board experience, including with the Alberta Electric System Operator and Workers’ Compensation Board-Alberta. A prior member of the C.D. Howe Financial Services Research Council, she is a recipient of the Canadian General Counsel Award – Mid-Market Excellence and the Women in Law Leadership Award. Ms. Harding received a Bachelor of Education and a Bachelor of Laws from the University of Alberta and holds the ICD.D designation.

Karen Kim ASC

Karen Kim, CA, CFA, ICD.D

Ms. Kim became a member in May 2017 and serves on the ASC’s Audit Committee. She possesses over 25 years of experience in capital markets, derivatives, risk management and investments. She has worked in progressively more senior finance roles at Petro-Canada and Suncor Energy, most recently as director, corporate finance. Ms. Kim holds a B.Comm (Accounting) from the University of Calgary, and is a Chartered Accountant and Chartered Financial Analyst. She also holds the ICD.D designation from the Institute of Corporate Directors.

James Oosterbaan ASC

James (Jim) Oosterbaan, ICD.D

Mr. Oosterbaan became a member in May 2017 and serves on the ASC’s Human Resources Committee. He has over 30 years of experience in the energy sector, with extensive experience in the commodity and derivatives markets. Most recently, he was the president and chief executive officer of NGX, part of the TMX Group. Before joining the TMX, he spent over 10 years in senior management positions with Capital Power Corporation and its predecessor company, EPCOR. Mr. Oosterbaan holds an MBA from the University of Western Ontario, the Institute of Corporate Directors designation and has completed the Stanford Executive Program at Stanford University. He also currently serves as an Advisor to the McRock Investment Fund, as a Director for Cups2Go and a Director for Chestermere Public Utilities.

Maryse Saint-Laurent ASC

Maryse Saint-Laurent, ICD.D

Ms. Saint-Laurent became a member in July 2016 and serves as Chair of the ASC’s Human Resources Committee. She possesses more than 20 years of experience in the legal profession as a finance, securities and transactional lawyer and also possesses several years’ experience in human resources management. Until 2015, she was the Vice President, Legal and Corporate Secretary at TransAlta Corporation and prior to that she was Senior Legal Counsel for TransCanada Corporation. She has served as a director of several private companies both domestically and internationally, and is presently a board director of Turquoise Hill Resources Ltd, Guyana Goldfields Inc., the Calgary Prostate Cancer Centre and Western Sky Land Trust. Ms. Saint-Laurent holds an LL.M. from York University’s Osgoode Hall law school.