CALGARY, Alberta, Sept. 30, 2025 (GLOBE NEWSWIRE) -- Gran Tierra Energy Inc. (“Gran Tierra” or the “Company”) (NYSE American:GTE)(TSX:GTE)(LSE:GTE) is pleased to announce the appointment of Brad Virbitsky to the Company’s Board of Directors as an independent director, effective September 30, 2025. Mr. Virbitsky is a portfolio manager and partner at Equinox Partners LLC, a Connecticut-based investment firm with over 30 years of history in natural resources and emerging markets. Mr. Virbitsky has over a decad ...