The Investment Industry Regulatory Organization of Canada (IIROC) published a notice on April 28 providing guidance related to UMIR obligations to mark orders to purchase or sell securities for insiders or significant shareholders. The notice anticipates the upcoming implementation on April 30 of the new insider reporting regime and provides answers to frequently asked questions regarding the UMIR obligations. Questions considered include, among others: (i) whether every order for an insider of a particular security must contain a marker; (ii) when a participant can rely on "know your client" information to establish whether a marker is required; and (iii) whether a marked order can be bundled together with orders for those that are not reporting insiders.