Gran Tierra Energy SEC Filings

Gran Tierra Energy Inc. received an amended Schedule 13D showing that the Equinox Partners group reports beneficial ownership of 5,796,370 shares of Common Stock, representing 16.4% of the class. The percentage is based on 35,295,753 shares outstanding as reported in the company’s Form 10‑Q filed on October 31, 2025.

Within the group, examples include Equinox Partners, L.P. with 2,396,343 shares (6.8%) and Kuroto Fund LP with 616,254 shares (1.8%). The filing notes shared voting and dispositive power over 5,796,370 shares and that purchases were funded with approximately $37,351,562.10, including commissions. The reporting persons state no admissions of beneficial ownership beyond directly owned securities. The group also notes that an EPIM portfolio manager joined the board on September 30, 2025.

Gran Tierra Energy (GTE): insider group reported open‑market share purchases. A joint Form 4 by Equinox Partners Investment Management (EPIM), Sean M. Fieler, and affiliated funds discloses purchases totaling 648,000 common shares across three trading days.

The group bought 276,000 shares on 11/04/2025 at $3.79, 172,000 shares on 11/05/2025 at $4.02, and 200,000 shares on 11/06/2025 at $4.07, all coded “P” for open‑market buys. Following these transactions, reported indirect holdings include 2,379,466 shares by Equinox Partners, L.P., 610,628 by Kuroto Fund LP, 487,735 by Mason Hill Partners, LP, and 2,267,859 by a managed account.

The filing notes the reporting persons are a Director and 10% Owner and that beneficial ownership is disclaimed except to the extent of pecuniary interest.

Gran Tierra Energy (GTE) reported an insider purchase by its Chief Operating Officer. On 11/03/2025, the officer acquired 875 shares of common stock through the company’s Employee Stock Purchase Plan. The price was $3.39 per share, stated as converted from Canadian currency. Following the transaction, the officer beneficially owns 27,669 shares, shown as direct ownership.

The filing notes the ESPP purchase was exempt under Rule 16b-3(d) and Rule 16b-3(c).

Gran Tierra Energy (GTE) disclosed an insider share purchase. The company’s EVP, Legal and Land, acquired 700 shares of common stock on November 3, 2025 through the Gran Tierra Employee Stock Purchase Plan, a transaction exempt under Rule 16b-3(d) and 16b-3(c). The reported purchase price was $3.39, reflecting conversion from Canadian currency. Following this trade, the reporting person beneficially owns 37,180 shares, held directly.

Gran Tierra Energy (GTE) reported an insider stock purchase. On November 3, 2025, the company’s EVP, Corporate Services acquired 394 common shares through the Gran Tierra Employee Stock Purchase Plan, a transaction noted as exempt under Rule 16b-3(d) and Rule 16b-3(c). The purchase price was recorded in Canadian dollars and converted to $3.39 per share in U.S. currency.

Following the transaction, the reporting person beneficially owns 49,219 shares directly and 6,100 shares indirectly through a spouse. The filing indicates it was made by one reporting person and includes a 10b5-1 checkbox reference.

Gran Tierra Energy (GTE) reported an insider share acquisition by its President and CEO, who is also a Director. On November 3, 2025, the executive acquired 1,225 shares of common stock through the company’s Employee Stock Purchase Plan, a transaction noted as exempt under Rule 16b-3(d) and Rule 16b-3(c). The purchase price was $3.39 per share after conversion from Canadian to U.S. currency. Following this transaction, the executive’s direct beneficial ownership stands at 495,807 shares.

Gran Tierra Energy Inc. (GTE)Exhibit 99.1 and incorporated by reference.

The information under Item 2.02 and Exhibit 99.1 is being furnished and is not deemed “filed” under Section 18 of the Exchange Act. The report was signed by EVP and CFO Ryan Ellson on October 30, 2025.

Gran Tierra Energy (GTE) reported a Q3 2025 net loss of $19.95 million, reversing from a $1.13 million profit a year ago, as higher costs and interest expense offset steady sales. Oil, natural gas and NGL sales were $149.3 million, down 1% year over year, with pricing headwinds partly offset by higher volumes.

Production expanded with the i3 Energy assets and exploration success in Ecuador. NAR production averaged 35,962 BOEPD (up 38% year over year), though temporarily impacted by an Ecuador landslide and Moqueta field repairs; NAR sales volumes rose 47% to 37,353 BOEPD. Operating expenses increased to $68.4 million, reflecting Canada integration and Ecuador ramp-up. Adjusted EBITDA was $69.0 million, while funds flow from operations was $41.7 million.

Liquidity and capital structure shifted: cash and cash equivalents were $49.1 million, nine‑month operating cash flow was $156.1 million, and capital expenditures totaled $218.2 million. Long‑term debt stood at $761.8 million, including $735.8 million of 9.50% Senior Notes due 2029. Subsequent to quarter end, the company entered a crude oil sale and purchase agreement to receive an advance of up to $150.0 million related to Ecuador production. Shares outstanding were 35,295,753 as of October 28, 2025.

Gran Tierra Energy Inc. entered into crude oil sale and purchase agreements with Trafigura, including a prepayment structure providing an initial advance of up to $150 million and an additional advance of up to $50 million, to be settled through oil deliveries with a final maturity four years after the prepayment date. The company will guarantee the obligations.

Funds advanced may be used to repay borrowings under the existing Credit Agreement, finance repurchases of senior notes, or fund capital expenditures in Ecuador. Covenants require an asset coverage ratio of at least 150% and a debt service coverage ratio of at least 200%, tested semi‑annually. In a related amendment, the borrowing base was reduced to $60 million and outstanding loans must be prepaid to no more than $20 million upon the earlier of the first disbursement or January 23, 2026. As of October 29, 2025, the Credit Agreement balance was $34.5 million.