North American Construction Group Ltd.: BANK OF MONTREAL amends Schedule 13G stake filing

Bank of Montreal amended its Schedule 13G filing for North American Construction Group Ltd., disclosing a change in its passive stake in the Canadian heavy-construction contractor. The amendment was filed with the SEC under accession number 0000927971-26-000114. Schedule 13G updates are typically triggered when a holder's ownership crosses the 5% threshold or when a previously reported position changes materially, though the filing summary did not specify the revised percentage. The disclosure matters because it signals a shift in a major institution's exposure to the Alberta-based equipment and mining-services provider. Investors will watch for the next 13F or 13G update to confirm whether Bank of Montreal is building or trimming its position.