Orosur Mining Inc. (TSXV: OMI) (AIM: OMI) has disclosed that Toronto-based 1832 Asset Management L.P. filed a TR-1 major holdings notification dated November 4, 2026, revealing a significant reduction in its voting interest. The asset manager's stake fell from 9.981172% to 4.854683%, representing a drop from 40,025,000 to 21,957,788 voting rights following a threshold-crossing event on November 2, 2026. The disclosure, which Orosur characterises as inside information under UK Market Abuse Regulations, signals a material shift in the company's shareholder register that investors may be watching closely.

Key Points

  • Orosur Mining Inc. (TSXV: OMI) (AIM: OMI) is a minerals explorer and developer operating in Colombia and Argentina.
  • 1832 Asset Management L.P. reduced its voting stake in Orosur from 9.981172% to 4.854683% following an acquisition or disposal of voting rights.
  • The threshold-crossing date was November 2, 2026; Orosur was notified on November 4, 2026, with 21,957,788 voting rights remaining.
  • Investors may be watching whether the reduced position prompts further changes to Orosur's institutional shareholder base.

1832 Asset Management Drops Below 5% Voting Threshold in Orosur

According to the TR-1 notification, 1832 Asset Management L.P. now holds 4.854683% of Orosur Mining's voting rights, down from a previous position of 9.981172%. The threshold-crossing event occurred on November 2, 2026, with the formal notification submitted to Orosur on November 4, 2026. The filing confirms the reduction was triggered by an acquisition or disposal of voting rights. No financial instruments contributing additional voting exposure were disclosed as part of the resulting position.

How 1832 Asset Management Holds Its Orosur Position Through Two Ontario Mutual Funds

The notification details that 1832 Asset Management L.P. holds its interest indirectly through two Ontario-registered mutual funds it manages. The Dynamic Precious Metals Fund accounts for 3.564660% of voting rights, while Dynamic Strategic Gold Class accounts for the remaining 1.290023%. As portfolio manager of both funds, 1832 Asset Management L.P. retains investment discretion and proxy voting authority over those shares. The release states that 1832 Asset Management L.P. is a wholly-owned subsidiary of The Bank of Nova Scotia.

Orosur Classifies the TR-1 Disclosure as Inside Information Under Market Abuse Regulations

Orosur Mining characterised the notification as inside information under the Market Abuse Regulations (EU) No. 596/2014 as incorporated into UK law, making it public upon release via a Regulatory Information Service. This classification reflects Orosur's dual listing obligations across the TSX Venture Exchange and London's AIM market. The company is a minerals explorer and developer currently operating in Colombia and Argentina. The immediate share price impact was not clear from available public information.