Form 4 Filing for Morin Sebastien

Morin Sebastien, Chief Operating Officer of GRAN TIERRA ENERGY INC., acquired 281 shares of common stock on September 17, 2026, through an employee stock purchase plan. The acquisition was exempt under Rule 16b-3(d) and Rule 16b-3(c). The purchase price was 10.59 Canadian dollars per share, which was converted to USD. Following this transaction, Sebastien owns 38,587 shares.