Orosur Mining Inc. (TSXV: OMI) (AIM: OMI), a minerals explorer and developer operating in Colombia and Argentina, has disclosed that Toronto-based 1832 Asset Management L.P. has materially reduced its voting stake in the company. According to a TR-1 major holdings notification received by Orosur on 4 November 2026, 1832 Asset Management's position fell from 9.981172% to 4.854683% of voting rights, dropping below the 5% disclosure threshold. The threshold was crossed on 2 November 2026, and the notification was filed in accordance with UK Disclosure Guidance and Transparency Rules.

Key Points

  • Orosur Mining Inc. (TSXV: OMI / AIM: OMI) — minerals explorer and developer focused on Colombia and Argentina
  • 1832 Asset Management L.P. reduced its voting stake from 9.981172% to 4.854683%, crossing below the 5% major holding threshold
  • Voting rights held following the disposal stand at 21,957,788 shares, down from a previous position of 40,025,000 shares
  • Investors may be watching whether further disposals bring the 1832 Asset Management position below additional regulatory thresholds

1832 Asset Management Cuts Orosur Holding from 40 Million to 21.9 Million Shares

The TR-1 notification confirms that 1832 Asset Management L.P., a limited partnership formed under the laws of Ontario and a wholly-owned subsidiary of The Bank of Nova Scotia, disposed of voting rights attached to Orosur equity shares. The resulting position of 21,957,788 shares represents 4.854683% of voting rights, compared with the prior notified holding of 40,025,000 shares at 9.981172%. The disposal was recorded as an acquisition or disposal of voting rights, with no financial instruments such as options or convertible securities involved in the notified position.

Dynamic Precious Metals Fund and Dynamic Strategic Gold Class Remain Invested via 1832 Portfolio Management

Within the aggregate 4.854683% position, the announcement states that two Ontario-registered mutual funds managed by 1832 Asset Management retain direct allocations in Orosur. The Dynamic Precious Metals Fund accounts for 3.564660% of voting rights, while the Dynamic Strategic Gold Class holds 1.290023%. As portfolio manager of both funds, 1832 Asset Management L.P. retains investment discretion and the authority to vote proxies on behalf of each vehicle, meaning the economic exposure to Orosur's gold and minerals exploration activities in South America is spread across these two precious metals-focused funds.

Orosur's Colombia and Argentina Exploration Portfolio Provides Context for Precious Metals Fund Interest

Orosur Mining describes itself as a minerals explorer and developer currently operating in Colombia and Argentina, two jurisdictions with active gold and base metals exploration sectors. The continued, albeit reduced, presence of precious-metals-focused institutional funds within the register reflects the company's positioning within the gold exploration space. Investors may be watching future regulatory filings to assess whether further adjustments to institutional shareholdings occur as Orosur advances its South American exploration and development activities. The company's shares are dual-listed on the TSX Venture Exchange and AIM.