SCHEDULE: Bank of Montreal Discloses 5.43% Stake in Aris Mining

Bank of Montreal and its affiliates have reported a beneficial ownership of 5.43% in Aris Mining Corp's common shares as of September 30, 2025.

Summary

• Bank of Montreal and its affiliates collectively beneficially own 10,989,729 common shares of Aris Mining Corp.
• This represents 5.43% of the total class of Aris Mining Corp's common shares.
• The filing was made under Rule 13d-1(b), indicating the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
• Individual reporting entities include Bank of Montreal (5.43%), BANK OF MONTREAL HOLDING INC. (5.42%), BMO NESBITT BURNS INC. WEALTH MANAGEMENT (0.6%), BMO ASSET MANAGEMENT INC. (0.59%), and BMO NESBITT BURNS INC. (4.81%).

Sentiment

Score: 7

Explanation: The disclosure of a significant institutional stake by Bank of Montreal and its affiliates is generally viewed positively as it indicates confidence from a major financial player. The passive nature of the investment (Rule 13d-1(b)) also suggests stability rather than potential activist intervention.

Positives

• Significant institutional investment from a major financial institution like Bank of Montreal can signal confidence in Aris Mining Corp's long-term prospects.
• The filing under Rule 13d-1(b) indicates a passive investment, suggesting the institution is not seeking to influence control, which can be viewed positively by existing management and shareholders.

Risks

• No specific risks related to Aris Mining Corp's operations or financial health are disclosed in this beneficial ownership statement.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding Aris Mining Corp's future operations or financial performance.

Industry Context

This filing indicates a significant institutional stake in Aris Mining Corp by a major Canadian bank and its affiliates. Such disclosures are common for publicly traded companies, especially those in resource sectors like mining, where institutional investors often hold substantial positions. It reflects a routine reporting requirement for large shareholders.

Stakeholder Impact

• Shareholders may view the significant institutional ownership as a vote of confidence, potentially leading to increased stability or positive sentiment for the stock.
• Management is unlikely to face immediate challenges from this stake, as the filing indicates a passive investment not aimed at influencing control.

Key Dates

Recommendation

The filing indicates a significant, passive institutional stake by Bank of Montreal, which is generally a positive signal of confidence. However, a Schedule 13G filing alone does not provide sufficient operational or financial details to warrant a 'buy' or 'sell' recommendation. It primarily confirms a large institutional position, suggesting a 'hold' while awaiting further fundamental company updates.

Keywords

Aris Mining Corp, Bank of Montreal, BMO, Schedule 13G, Beneficial Ownership, Common Shares, Institutional Investor, Mining Sector, Equity Stake