Gran Tierra Energy Inc. (GTE) CEO boosts holdings with Form 4 share purchase

Rhea-AI Filing Summary

Gran Tierra Energy Inc. reported that its President and CEO, who also serves as a director, acquired additional company stock through an employee plan. On 12/30/2025, the insider acquired 1,015 shares of Gran Tierra Energy Inc. common stock at a price of $4.19 per share under the Gran Tierra Inc. Employee Stock Purchase Plan, in a transaction described as exempt under Rule 16b-3(d) and Rule 16b-3(c). Following this transaction, the insider beneficially owned 499,751 shares of common stock held directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Guidry Gary

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,015	$4.19	$4K

Holdings After Transaction: Common Stock — 499,751 shares (Direct)

Footnotes (1)

1. These shares were acquired on December 30, 2025 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). Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Guidry Gary

(Last) (First) (Middle)

C/O GRAN TIERRA ENERGY INC.

500 CENTRE STREET SE

(Street)

CALGARY A0 T2G 1A6

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GRAN TIERRA ENERGY INC. [ GTE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
12/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/30/2025		A(1)		1,015	A	$4.19(2)	499,751	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These shares were acquired on December 30, 2025 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).

2. Purchase price of security was transacted in Canadian currency and converted to U.S. currency.

	/s/ Phillip Abraham, Attorney-In Fact	01/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Gran Tierra Energy Inc. (GTE) disclose in this Form 4?

The filing shows that the President and CEO of Gran Tierra Energy Inc., who is also a director, acquired 1,015 shares of common stock on 12/30/2025 through the company’s Employee Stock Purchase Plan.

At what price were the Gran Tierra Energy Inc. (GTE) shares acquired in this insider purchase?

The 1,015 shares of Gran Tierra Energy Inc. common stock were acquired at a price of $4.19 per share, with the purchase price originally transacted in Canadian currency and then converted to U.S. currency.

How many Gran Tierra Energy Inc. (GTE) shares does the reporting person own after this transaction?

After the reported transaction, the insider beneficially owned 499,751 shares of Gran Tierra Energy Inc. common stock, held with a direct ownership form.

What is the relationship of the reporting person to Gran Tierra Energy Inc. (GTE)?

The reporting person is both a director and an officer of Gran Tierra Energy Inc., serving as the company’s President and CEO.

Was the Gran Tierra Energy Inc. (GTE) insider transaction exempt under SEC rules?

Yes. The filing states that the shares were acquired through the Gran Tierra Inc. Employee Stock Purchase Plan in a transaction that was exempt under Rule 16b-3(d) and Rule 16b-3(c).

Is this Gran Tierra Energy Inc. (GTE) Form 4 filed for one or multiple reporting persons?

The document indicates that it is a Form filed by one reporting person, not a joint or group filing.