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OSC organization and leadership

More than 700 employees support the work of the Ontario Securities Commission (OSC) across several divisions that perform a range of regulatory, corporate and advisory responsibilities. 

Refer to the OSC organizational chart to learn more about how the Commission is organized. 

Expand each field below to meet our leadership team and learn more about the OSC.

Members of the Executive Team

Photo of OSC Chief Executive Officer Grant Vingoe
Grant Vingoe
Chief Executive Officer

The Chief Executive Officer is responsible, on a full-time basis, for the OSC’s management and administration, other than for matters relating to the Capital Markets Tribunal’s adjudicative functions, and is responsible for the regulation of Ontario's capital markets. The Chief Executive Officer is also a Board Director.

Grant Vingoe is the first dedicated Chief Executive Officer of the Ontario Securities Commission (OSC). He previously served as both Chair and CEO of the OSC before the roles were separated with the proclamation of the Securities Commission Act, 2021 on April 29, 2022. He is a member of the OSC’s Board of Directors.

Grant is Chair of the Policy Coordination Committee of the Canadian Securities Administrators (CSA), the umbrella organization for securities commissions in Canada, and is a member of the board of directors of the International Organization of Securities Commissions (IOSCO). He is also the Chair of the Joint Regulators Committee responsible for the CSA’s oversight of the Ombudsman for Banking Services and Investments. He also holds leadership positions in Canadian standard-setting bodies and international sustainable finance forums. 

Grant is an experienced executive and trusted adviser for regulatory agencies and, during his career as a partner in leading global law firms, for issuers and financial services clients. He has extensive cross-border expertise in securities law and deep knowledge of financial markets. 

Grant holds a J.D. from Toronto’s Osgoode Hall Law School and an LL.M from the New York University School of Law. He was admitted to the bar of Ontario in 1983 and New York in 1985.

Photo of Leslie Byberg
Leslie Byberg
Executive Vice President, Strategic Regulation

The Executive Vice President, Strategic Regulation is responsible for the oversight of regulatory functions of thought leadership, regulatory and economic research including behavioural insights, sustainable finance, investor experience, and economic growth and innovation. The executive oversight of these functions ensures regulatory policy and processes are informed by current and forward-thinking understanding of capital markets, which will enhance the experience of individual investors, promote confidence in Ontario’s capital markets, reduce regulatory burden and facilitate financial innovation. This role is part of an executive team that provides strategic regulatory and organizational governance advice and guidance to the Chief Executive Officer.

Leslie Byberg is the Executive Vice President, Strategic Regulation of the Ontario Securities Commission. 

Since 2003, Ms. Byberg has held several executive positions at the OSC, most recently serving Executive Director from 2019 to 2024, following her role as Executive Director and CAO from 2016 to 2019, during which she was responsible for overseeing all the OSC’s regulatory and corporate operations. Prior to that, she was the Director of the OSC’s Strategy and Operations Branch, overseeing the OSC’s business planning, policy prioritization and risk management processes. In this role, Ms. Byberg led the development of the OSC’s Strategic Outlook for 2015-2017, oversaw the first comprehensive review of the Canadian fixed income market and led the OSC’s mystery shop research into the retail investment advice process. Ms. Byberg also served as the Director of Corporate Finance and Director of Investment Funds. 

Prior to joining the OSC, Ms. Byberg was Senior Counsel, Regulation at the Investment Funds Institute of Canada. Ms. Byberg also worked as an associate lawyer at two Toronto law firms with a practice specializing in investment funds.

Photo of Sonny Randhawa
Sonny Randhawa
Executive Vice President, Regulatory Operations

The Executive Vice President, Regulatory Operations is responsible for the oversight and leadership of the regulatory operations inclusive of policy development, implementation of regulatory procedures, rules, and market participant outreach. The executive oversight of these functions ensures broader accountability for regulation across the financial landscape, enabling increased agility and responsiveness in regulatory operations which promotes confidence in Ontario’s capital markets and reduces regulatory burden. This role is part of an executive team that provides strategic regulatory and organizational governance advice and guidance to the Chief Executive Officer.

Sonny Randhawa is the Executive Vice President Regulatory Operations of the Ontario Securities Commission. 

Since 2009, Mr. Randhawa has held progressively senior positions at the OSC, most recently serving as Executive Director, responsible for the oversight and leadership of several regulatory and advisory operational teams. Prior to that, Mr. Randhawa was the Director of Corporate Finance overseeing the regulation of issuers in the public and private markets. In this role, he led work on numerous policy initiatives, including the short form prospectus framework and multiple actions to reduce regulatory burden affecting companies in Ontario’s capital markets. 

Prior to joining the OSC, Sonny was a Senior Manager at a multi-national accounting and advisory firm. He is a Chartered Professional Accountant, Chartered Accountant and Certified Public Accountant (Illinois).

Vice-Chair Deana Djurdjevic
Deana Djurdjevic
Chief Operations Officer

The Chief Operations Officer is responsible for the oversight and leadership of OSC operations, inclusive of human resource management, information technology, digital solutions, systems security, an enterprise-wide project management office, and strategic and business planning and execution. The Chief Operations Officer acts as the custodian of the business agenda and the work environment that sustains a highly professional and diverse workforce delivering a complex regulatory mandate. This role is part of an executive team that provides strategic regulatory and organizational governance advice and guidance to the Chief Executive Officer.

Deana Djurdjevic is the Chief Operations Officer of the Ontario Securities Commission. 

Ms. Djurdjevic has more than 25 years of experience in building, leading, and transforming businesses and teams in the Canadian capital markets. Prior to joining the OSC, Ms. Djurdjevic was instrumental in launching the Financial Services Regulatory Authority of Ontario’s (FSRA) and developing its technology and process modernization roadmap. 

Ms. Djurdjevic has also held senior leadership positions in Canadian marketplaces, such as the TMX Group, where she transformed its equity trading business and implemented novel products and enterprise growth strategies. Additionally, Ms. Djurdjevic was instrumental in the launch of the Alpha ATS at Alpha Group (acquired by TMX Group) and growth of the Institutional Electronic Trading business at E*Trade Technologies Corp.

Photo of Naizam Kanji
Naizam Kanji
General Counsel and Executive Vice President, Legal

The General Counsel and Executive Vice President, Legal provides oversight to regulatory and corporate legal advisory functions, inclusive of in-house legal, policy, strategy, legislative, and risk-management guidance, defence of proceedings brought against the Commission, assurance of organizational integrity and ethical conduct, as well as the Governance and Tribunal Secretariat function. This role is part of an executive team that provides strategic regulatory and organizational governance advice and guidance to the Chief Executive Officer.

Naizam Kanji is General Counsel and Executive Vice President, Legal at the Ontario Securities Commission. 

Naizam has been with the Ontario Securities Commission since 2000 and previously held the positions of Director of the Mergers and Acquisitions Branch and Deputy Director of the Corporate Finance Branch, with primary responsible for mergers and acquisitions regulation.  He has led work on numerous policy initiatives, including the harmonization of the Canadian take-over bid regime, amendments to the take-over bid regime mandating majority shareholder approval of take-over bids and providing target boards with more time to respond to unsolicited bids, reviews of the proxy plumbing system and role of proxy advisors, staff guidance on board process and disclosure in conflicted M&A transactions, and reforms to the regulatory framework for asset-backed commercial paper.  Naizam has also led regulatory and litigation teams representing staff in M&A administrative proceedings relating to target board defensive responses to unsolicited bids, material conflict of interest transactions and appeals of Exchange decisions impacting corporate control.  

Naizam served as Special Advisor to the Chair on Regulatory Burden Reduction with responsibility for leading the team consulting on regulatory burden in Ontario’s capital markets and the issuance of its report in November 2019 - Reducing Regulatory Burden in Ontario’s Capital Markets. Naizam was a member of the Expert Advisory Group and the OSC liaison to the Ontario government’s Capital Markets Modernization Taskforce (CMMT) that was appointed in February 2020 and issued its final recommendations in January 2021.  He was part of the leadership team that implemented the governance changes recommended by the CMMT, including the separation of the regulatory and adjudicative functions of the OSC and separating the roles of the Board Chair and CEO. 

Naizam has been a frequent speaker on securities regulation, including mergers and acquisitions, at conferences and law schools in Canada and the United States. He has also written papers on regulatory aspects of mergers and acquisitions law. Naizam is an Adjunct Professor at the University of Toronto Law School and Osgoode Hall Law School, York University where he co-teaches courses in securities litigation and securities law.     

Prior to joining the OSC, Naizam clerked with the Commercial List, Ontario Superior Court of Justice, and was an associate in the insolvency and restructuring group at a leading Canadian law firm.

Naizam has a LL.B and a LL.M from Osgoode Hall Law School, and was admitted to the bar in Ontario in 1998. 

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Vacant
Executive Vice President, Enforcement

The Executive Vice President, Enforcement is responsible for investigating and litigating breaches of the Securities Commission Act and seeking orders in the public interest before the Commission and the courts. This role is part of an executive team that provides strategic regulatory and organizational governance advice and guidance to the Chief Executive Officer.