This Note describes the reporting obligations applicable to reporting insiders under the Ontario Securities Act, R.S.O. 1990, c. S.5 and National Instrument 55-104 - Insider Reporting Requirements and Exemptions and the related filing requirements for reporting insiders and reporting issuers under the System for Electronic Disclosure by Insiders (SEDI). This Note also discusses certain additional reporting requirements imposed on insiders by Canadian stock exchanges. This Note describes the sanctions for failing to file insider reports and identifies the primary exemptions from insider reporting requirements.