When must a public company immediately disclose developments in its business, operations, or capital? In Lundin Mining Corp. v. Markowich, the Supreme Court of Canada clarified what constitutes a “material change” under Ontario’s Securities Act and when issuers are required to disclose such changes to the market.
Adam Goldenberg speaks with McCarthy Tétrault partner and co‑head of securities litigation Owais Ahmed, alongside senior litigation associate Valérie Lord, about the Court’s decision, its guidance on the distinction between “material facts” and “material changes”, and what the ruling means for disclosure obligations under Canadian securities law. (11:50)
