GTE

SEC source: 0001104659-20-111947 · tm2032399-4_4.xml · derivative · entry 2

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,977

Underlying: Common Stock · 47,977 shares

Expires 2025-10-01

SEC source: 0001104659-20-111947 · tm2032399-4_4.xml · derivative · entry 1

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 680,163

Underlying: Common Stock · 177,395 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111940 · tm2032399-1_4.xml · derivative · entry 2

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,977

Underlying: Common Stock · 47,977 shares

Expires 2025-10-01

SEC source: 0001104659-20-111940 · tm2032399-1_4.xml · derivative · entry 1

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 646,956

Underlying: Common Stock · 177,395 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111951 · tm2032399-7_4.xml · derivative · entry 2

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,977

Underlying: Common Stock · 47,977 shares

Expires 2025-10-01

SEC source: 0001104659-20-111951 · tm2032399-7_4.xml · derivative · entry 1

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 680,163

Underlying: Common Stock · 177,395 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111949 · tm2032399-6_4.xml · derivative · entry 2

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,977

Underlying: Common Stock · 47,977 shares

Expires 2025-10-01

SEC source: 0001104659-20-111949 · tm2032399-6_4.xml · derivative · entry 1

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 296,875

Underlying: Common Stock · 81,562 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111948 · tm2032399-5_4.xml · derivative · entry 1

Scott Sondra · CIK 0001717040 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 630,516

Underlying: Common Stock · 192,083 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111945 · tm2032399-3_4.xml · derivative · entry 1

Hodgins Robert B. · CIK 0001642212 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 593,745

Underlying: Common Stock · 158,333 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-111942 · tm2032399-2_4.xml · derivative · entry 2

Hazell Evan · CIK 0001646362 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,977

Underlying: Common Stock · 47,977 shares

Expires 2025-10-01

SEC source: 0001104659-20-111942 · tm2032399-2_4.xml · derivative · entry 1

Hazell Evan · CIK 0001646362 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 539,479

Underlying: Common Stock · 143,020 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001106191-20-000016 · primary_doc.xml · nonDerivative · entry 1

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,925,479

F1 · security: This Form 4 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital), and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a controlling interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F3 · security: The aggregate number of shares of common stock sold on September 30, 2020, was 504,000 shares, at a price of $0.23 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 82,925,479. Such shares were sold, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 150,500 shares sold resulting in ownership of 24,209,990 shares; Bay II = 120,800 shares sold resulting in ownership of 19,534,730 shares; Offshore Fund = 212,700 shares sold resulting in ownership of 34,279,159 shares; GMT Capital = 0 shares sold resulting in ownership of 147,000 shares; Claugus = 20,000 shares sold resulting in ownership of 3,227,700 shares; GMT Exploration = 0 shares sold resulting in ownership of 1,526,900 shares.

SEC source: 0001104659-20-106103 · tm2031216d4_form4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,904

F1 · kind: These shares were acquired on September 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-106102 · tm2031216d3_form4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,564,511

F1 · kind: These shares were acquired on September 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-106101 · tm2031216d2_form4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 254,307

F1 · kind: These shares were acquired on September 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-106100 · tm2031216d1_form4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 369,422

F1 · kind: These shares were acquired on September 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-102615 · tm2030290-3_4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,551,395

F1 · kind: These shares were acquired on September 4, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-102616 · tm2030290-4_4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,346

F1 · kind: These shares were acquired on September 4, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-102610 · tm2030290-1_4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 360,132

F1 · kind: These shares were acquired on September 4, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-102614 · tm2030290-2_4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 250,208

F1 · kind: These shares were acquired on September 4, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-096544 · tm2028929d5_form4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 246,775

F1 · kind: These shares were acquired on August 18, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-096543 · tm2028929d4_form4.xml · nonDerivative · entry 1

Berthelet Remi Anthony · CIK 0001792028 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,665

F1 · kind: These shares were acquired on August 18, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-096541 · tm2028929d3_form4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 352,350

F1 · kind: These shares were acquired on August 18, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-096539 · tm2028929d2_form4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,540,409

F1 · kind: These shares were acquired on August 18, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-096538 · tm2028929d1_form4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,853

F1 · kind: These shares were acquired on August 18, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-090821 · tm2026740-5_4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,949

F1 · kind: These shares were acquired on August 5, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-090820 · tm2026740-4_4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,530,600

F1 · kind: These shares were acquired on August 5, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-090818 · tm2026740-3_4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,709

F1 · kind: These shares were acquired on August 5, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-090817 · tm2026740-2_4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 345,402

F1 · kind: These shares were acquired on August 5, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-090816 · tm2026740-1_4.xml · nonDerivative · entry 1

Berthelet Remi Anthony · CIK 0001792028 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,395

F1 · kind: These shares were acquired on August 5, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-084516 · tm2025084-5_4.xml · nonDerivative · entry 1

Berthelet Remi Anthony · CIK 0001792028 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,932

F1 · kind: These shares were acquired on July 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-084515 · tm2025084-4_4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,042

F1 · kind: These shares were acquired on July 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-084514 · tm2025084-3_4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,462

F1 · kind: These shares were acquired on July 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-084513 · tm2025084-2_4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,520,209

F1 · kind: These shares were acquired on July 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-084512 · tm2025084-1_4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,754

F1 · kind: These shares were acquired on July 17, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081703 · tm2024286-5_4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124.561

F1 · kind: These shares were acquired on July 6, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081702 · tm2024286-4_4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,511,824

F1 · kind: These shares were acquired on July 6, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081701 · tm2024286-3_4.xml · nonDerivative · entry 1

Evans Jim · CIK 0001642276 · VP, Corporate Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 237,842

F1 · kind: These shares were acquired on July 6, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081700 · tm2024286-2_4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,102

F1 · kind: These shares were acquired on July 6, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081699 · tm2024286-1_4.xml · nonDerivative · entry 1

Berthelet Remi Anthony · CIK 0001792028 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,137

F1 · kind: These shares were acquired on July 6, 2020 through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under both Rule 16b-3(d) and Rule 16b-3(c).

F2 · price: Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

SEC source: 0001104659-20-081411 · tm2024211-4_4.xml · derivative · entry 2

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,700

Underlying: Common Stock · 19,700 shares

Expires 2025-07-01

SEC source: 0001104659-20-081411 · tm2024211-4_4.xml · derivative · entry 1

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 502,768

Underlying: Common Stock · 75,739 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-081394 · tm2024211-1_4.xml · derivative · entry 2

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,700

Underlying: Common Stock · 19,700 shares

Expires 2025-07-01

SEC source: 0001104659-20-081394 · tm2024211-1_4.xml · derivative · entry 1

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 469,561

Underlying: Common Stock · 75,739 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-081444 · tm2024211-7_4.xml · derivative · entry 2

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,700

Underlying: Common Stock · 19,700 shares

Expires 2025-07-01

SEC source: 0001104659-20-081444 · tm2024211-7_4.xml · derivative · entry 1

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 502,768

Underlying: Common Stock · 75,739 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-081426 · tm2024211-6_4.xml · derivative · entry 2

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,166

Underlying: Common Stock · 24,166 shares

Expires 2025-07-01

SEC source: 0001104659-20-081426 · tm2024211-6_4.xml · derivative · entry 1

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 215,313

Underlying: Common Stock · 41,648 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001104659-20-081403 · tm2024211-3_4.xml · derivative · entry 1

Hodgins Robert B. · CIK 0001642212 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 435,412

Underlying: Common Stock · 80,851 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.