Orosur Mining Inc (TSX-V/AIM: OMI), a minerals explorer and developer operating in Colombia and Argentina, has disclosed that two of its directors purchased shares on the open market on 4 November 2026. Executive Chairman Louis Castro acquired 100,000 common shares at an average price of 9.46 pence per share, while Independent Non-Executive Director Nick von Schirnding acquired 106,894 common shares at an average price of 9.3 pence per share. The transactions, conducted on AIM, were disclosed under UK Market Abuse Regulation requirements and classified by the company as inside information now in the public domain.

Key Points

  • Orosur Mining Inc (TSX-V/AIM: OMI) is a minerals explorer and developer operating in Colombia and Argentina
  • Executive Chairman Louis Castro and Non-Executive Director Nick von Schirnding both purchased OMI common shares on 4 November 2026 via AIM
  • Castro paid an average of 9.46p per share for 100,000 shares; von Schirnding paid an average of 9.3p per share for 106,894 shares
  • Investors may be watching whether further director buying follows as the company pursues its exploration and development activities

Louis Castro and Nick von Schirnding Purchase OMI Shares at Sub-10p Prices on AIM

The announcement states that Executive Chairman Louis Castro acquired 100,000 common shares of no par value at an average price of 9.46 pence per share, and that Independent Non-Executive Director Nick von Schirnding acquired 106,894 common shares at an average price of 9.3 pence per share. Both transactions were executed on 4 November 2026 on AIM. The purchases represent separate, single transactions rather than aggregated dealings, as confirmed by the disclosure. The company did not disclose any stated rationale from the directors regarding their decision to acquire shares at this time.

Post-Transaction Beneficial Interests: Castro at 0.07% and Von Schirnding at 0.17% of Issued Capital

Following the transactions, Louis Castro holds a total beneficial interest of 305,000 common shares, representing 0.07 per cent of Orosur Mining's issued share capital. Nick von Schirnding now holds a total beneficial interest of 770,864 common shares, representing 0.17 per cent of the company's issued share capital. These relatively modest percentage holdings reflect the company's broader share structure. The company did not disclose the total number of issued shares in this announcement, nor did it provide commentary on the significance of these holdings relative to overall market capitalisation.

Orosur Mining's Colombia and Argentina Exploration Focus Provides Context for Director Confidence

Orosur Mining Inc describes itself as a minerals explorer and developer currently operating in Colombia and Argentina. The company is dual-listed on the TSX Venture Exchange and AIM, with SP Angel Corporate Finance LLP acting as its nominated adviser and broker, and Turner Pope Investments serving as joint broker. Director share purchases in junior mining companies are often interpreted by investors as a signal of internal confidence in project development progress, though the company made no such statement in this announcement. Investors may be watching future operational updates from the company's Colombian and Argentine assets for further context.