SCHEDULE 13G/A 0001013594-24-000742 0000938552 XXXXXXXX LIVE 2 Common Shares, par value $0.001 per share 01/24/2025 0001273441 GRAN TIERRA ENERGY INC. 38500T200 500 Centre Street S.E. Calgary A0 T2G 1A6 Rule 13d-1(c) Equinox Partners Investment Management LLC a DE 0 3716114 0 3716114 3716114 N 10.2 IA Includes 1,299,432 common shares, par value $0.001 per share (the "Common Shares") of Gran Tierra Energy Inc. (the "Issuer") held in one or more client accounts over which Equinox Partners Investment Management LLC, as investment advisor, has shared voting and dispositive power. The filing of this statement should not be deemed as admission that Equinox Partners Investment Management LLC is, for the purposes of Section 13 of the Act, the beneficial owner of the Common Shares held in such client account(s). Equinox Partners, L.P. a DE 0 1736061 0 1736061 1736061 N 4.8 PN Kuroto Fund LP a DE 0 538700 0 538700 538700 N 1.5 PN Mason Hill Partners, LP a DE 0 141921 0 141921 141921 N 0.4 PN Sean M. Fieler a X1 0 3716114 0 3716114 3716114 N 10.2 IN See Footnote 1 on page 2. The filing of this statement should not be deemed an admission that Mr. Fieler is, for the purposes of Section 13 of the Act, the beneficial owner of the Common Shares held in such client account(s). GRAN TIERRA ENERGY INC. 500 Centre Street S.E., Calgary, Alberta, Canada, T2G 1A6 The names of the persons jointly filing this statement on Schedule 13G (collectively, the "Reporting Persons") are: Equinox Partners Investment Management LLC, a Delaware limited liability company ("EPIM"). Equinox Partners, L.P., a Delaware limited partnership ("Equinox Partners"). Kuroto Fund LP, a Delaware limited partnership ("Kuroto"). Mason Hill Partners, LP, a Delaware limited partnership ("Mason Hill Partners"). Sean M. Fieler, a United States Citizen ("Mr. Fieler"). EPIM's principal business is serving as an investment advisor to certain private investment funds, including Equinox Partners, Kuroto, Mason Hill Partners, and other client accounts. Each of Equinox Partners, Kuroto, and Mason Hill Partners is a private investment fund. Mr. Fieler owns a controlling interest in, and is the managing member of, EPIM. The principal business office of each of the Reporting Persons is Three Stamford Plaza, 301 Tresser Blvd, 13th Fl., Stamford, CT 06901. Each of EPIM, Kuroto, Equinox Partners, and Mason Hill Partners is organized under the laws of the State of Delaware. Mr. Fieler is a citizen of the United States. Y Each of EPIM and Mr. Fieler may be deemed to beneficially own (as that term is defined in Rule 13d-3 under the Act) the Common Shares which each of Equinox Partners, Kuroto, and Mason Hill Partners directly beneficially owns. Each of EPIM and Mr. Fieler disclaims beneficial ownership of such Common Shares for all other purposes. EPIM acts as an investment advisor to certain client accounts and, by virtue of investment management agreements with these clients, has voting and dispositive power over the Common Shares held in such client accounts. Mr. Fieler is the managing member of, and owns a controlling interest in, EPIM. The filing of this statement should not be deemed an admission that EPIM or Mr. Fieler is, for the purposes of Section 13 of the Act, the beneficial owner of the Common Shares held in such client accounts. (a) Amount beneficially owned: (i) EPIM beneficially owns 3,716,114 Common Shares. (ii) Equinox Partners beneficially owns 1,736,061 Common Shares. (iii) Kuroto beneficially owns 538,700 Common Shares. (iv) Mason Hill Partners beneficially owns 141,921 Common Shares. (v) Mr. Fieler beneficially owns 3,716,114 Common Shares. (vi) Collectively, the Reporting Persons beneficially own 3,716,114 Common Shares. The following percentages are based on 36,460,141 Common Shares outstanding as of November 6, 2024, as provided by the Issuer to the Reporting Persons. (i) EPIM's beneficial ownership of 3,716,114 Common Shares represents approximately 10.2% of the outstanding Common Shares. (ii) Equinox Partners' beneficial ownership of 1,736,061 Common Shares represents approximately 4.8% of the outstanding Common Shares. (iii) Kuroto's beneficial ownership of 538,700 Common Share represents approximately 1.5% of the outstanding Common Shares. (iv) Mason Hill Partners' beneficial ownership of 141,921 Common Shares represents approximately 0.4% of the outstanding Common Shares. (v) Mr. Fieler's beneficial ownership of 3,716,114 Common Shares represents approximately 10.2% of the outstanding Common Shares. (vi) Collectively, the Reporting Persons' beneficial ownership of 3,716,114 Common Shares represents approximately 10.2% of the outstanding Common Shares. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. Y Y Y N See Exhibit A to the Schedule 13G filed by the Reporting Persons with the Securities and Exchange Commission on September 17, 2024. Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Equinox Partners Investment Management LLC /s/ Sean M. Fieler 01/28/2025 Equinox Partners, L.P. /s/ Sean M. Fieler 01/28/2025 Kuroto Fund LP /s/ Sean M. Fieler 01/28/2025 Mason Hill Partners, LP /s/ Sean M. Fieler 01/28/2025 Sean M. Fieler /s/ Sean M. Fieler 01/28/2025