Equinox Partners Investment Management LLC and affiliated reporting persons filed a joint Form 4 on August 17, 2026, disclosing the sale of Gran Tierra Energy Inc. common shares across four accounts on August 13 and August 14, 2026.

Key Highlights

  • Filing date: August 17, 2026, covering transactions on August 13 and August 14, 2026
  • August 13 sales at $9.23 per share: Equinox Partners, L.P. disposed of 132,412 shares; a Managed Account disposed of 132,532 shares; Kuroto Fund LP disposed of 33,818 shares; Mason Hill Partners, LP disposed of 28,197 shares
  • August 14 sales at $9.31 per share: Equinox Partners, L.P. disposed of 140,929 shares; a Managed Account disposed of 141,057 shares; Kuroto Fund LP disposed of 35,993 shares; Mason Hill Partners, LP disposed of 30,011 shares
  • Ownership following August 14 transactions: Equinox Partners, L.P. held 1,407,074 shares; Managed Account held 1,408,547 shares; Kuroto Fund LP held 359,336 shares; Mason Hill Partners, LP held 299,625 shares
  • Reporting persons: All four entities and Sean M. Fieler are identified as 10% owners of Gran Tierra Energy Inc.

Equinox Partners Reduces Gran Tierra Energy Position Over Two Trading Days

According to the filing, Equinox Partners Investment Management LLC ("EPIM"), a Stamford, Connecticut-based investment manager, filed jointly with Equinox Partners, L.P., Kuroto Fund LP, Mason Hill Partners, LP, and Sean M. Fieler. All reporting persons are identified as 10% owners of Gran Tierra Energy Inc. (NYSE:GTE), a company whose common shares carry a par value of $0.001 per share. The filing covers eight separate disposal transactions spanning two dates.

On August 13, 2026, sales were executed at $9.23 per share across all four accounts. Equinox Partners, L.P. sold 132,412 shares, retaining 1,548,003 shares after the transaction. The Managed Account sold 132,532 shares, with 1,549,604 shares remaining. Kuroto Fund LP sold 33,818 shares, leaving 395,329 shares, while Mason Hill Partners, LP sold 28,197 shares, leaving 329,636 shares, according to the filing.

On August 14, 2026, sales were executed at $9.31 per share. Equinox Partners, L.P. sold 140,929 shares, with 1,407,074 remaining. The Managed Account sold 141,057 shares, with 1,408,547 remaining. Kuroto Fund LP sold 35,993 shares, leaving 359,336 shares, and Mason Hill Partners, LP sold 30,011 shares, leaving 299,625 shares, the filing states. The filing also notes that EPIM serves as investment advisor to Equinox Partners, L.P., Kuroto Fund LP, and Mason Hill Partners, LP, and that Sean M. Fieler is president of EPIM. Each reporting person disclaims beneficial ownership of reported securities except to the extent of their respective pecuniary interest, as stated in the filing's explanation of responses.

What Was Disclosed

The joint Form 4 filing discloses eight open-market sales of Gran Tierra Energy Inc. common shares by four accounts managed or affiliated with Equinox Partners Investment Management LLC, covering transactions on August 13 and August 14, 2026, at prices of $9.23 and $9.31 per share, respectively.