SCHEDULE 13G/A

Aris Mining Corp

Common Shares, no par value · CUSIP: 04040Y109

Event date: 2025-09-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Bank of Montreal

  Shares: 6,113,639 · Class: 3.02%

• BANK OF MONTREAL HOLDING INC.

  Shares: 6,110,339 · Class: 3.01%

• BMO NESBITT BURNS INC. WEALTH MANAGEMENT

  Shares: 1,233,246 · Class: 0.6%

• BMO ASSET MANAGEMENT INC.

  Shares: 1,196,716 · Class: 0.59%

• BMO NESBITT BURNS INC.

  Shares: 4,876,090 · Class: 2.4%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.