CSA Staff Notice 55-316 Questions and Answers on Insider Reporting and SEDI3 Issuer Information3.2 Issuer Profile Supplement Section 3.2.2 When Do I Need To File An Issuer Profile Supplement? CAUTION: Lexata's content was last updated in 2024 and may not reflect current securities regulatory requirements.You need to file an issuer profile supplement within three business days after the issuer becomes a SEDI issuer.