[Form 4] Gran Tierra Energy Inc. Insider Trading Activity

Rhea-AI Filing Summary

Gran Tierra Energy insider purchase: Gary Guidry, who serves as President, CEO and a director of Gran Tierra Energy Inc. (GTE), acquired 1,015 shares of the company's common stock on 09/02/2025 through the Gran Tierra Employee Stock Purchase Plan. The reported purchase price was C$4.17 per share converted to U.S. dollars. After the transaction Guidry beneficially owned 491,600 shares. The filing states the purchase was exempt under Rule 16b-3(c) and 16b-3(d), indicating the transaction was made under a company plan that provides an affirmative defense under Section 16.

Insights

Financial Analyst

TL;DR: A routine ESPP purchase by the CEO; small incremental ownership change, no material impact on capital structure.

The Form 4 shows a purchase of 1,015 shares at C$4.17 (converted to USD) under the company's Employee Stock Purchase Plan. This is reported as exempt under Rule 16b-3, which is standard for plan purchases by executives and avoids short-swing profit issues. The post-transaction beneficial ownership of 491,600 shares provides context on executive stake size but, based on this single small purchase, there is no evidence in the filing of a material change to ownership concentration or to the company's capitalization.

Corporate Governance Expert

TL;DR: Proper disclosure of a plan-based purchase by a Section 16 officer; procedural compliance appears intact.

The filing identifies the reporting person as President, CEO and director and documents acquisition under the Gran Tierra Employee Stock Purchase Plan with the applicable Rule 16b-3 exemptions claimed. The form is signed by an attorney-in-fact and includes the transaction date and post-transaction beneficial ownership, meeting standard disclosure requirements. There are no amendments or atypical transaction codes that would signal governance issues in this filing alone.

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
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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)
09/02/2025

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	09/02/2025		A(1)		1,015	A	$4.17(2)	491,600	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 September 2, 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	09/02/2025
	** 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

When did Gary Guidry make the GTE insider purchase?

09/02/2025 is the transaction date reported on the Form 4.

How many Gran Tierra (GTE) shares did the CEO buy on 09/02/2025?

1,015 shares were acquired through the Gran Tierra Employee Stock Purchase Plan.

What was the purchase price per share for the GTE transaction?

C$4.17 per share was the reported purchase price, converted to U.S. dollars in the filing.

What is Gary Guidry's beneficial ownership of GTE after the purchase?

491,600 shares beneficially owned following the reported transaction.

Under what exemption was the GTE purchase reported?

The filing states the purchase was exempt under both Rule 16b-3(c) and Rule 16b-3(d), reflecting an employee plan transaction.