CSA Staff Notice 55-316 Questions and Answers on Insider Reporting and SEDI
3 Issuer Information
3.3 Issuer Event Report
Section 3.3.13

What Is The “Effective Date” On An Issuer Event Report Form?

The “Effective date” is the date on which the change to the number of securities and related financial instruments happens as a result of the issuer event. It is the date of the occurrence of the event.