[Form 4] GRAN TIERRA ENERGY INC. Insider Trading Activity

Rhea-AI Filing Summary

Gran Tierra Energy insider purchase by EVP, Legal and Land. Phillip Abraham acquired 609 common shares on 09/16/2025 under the company Employee Stock Purchase Plan. The purchase was made at a price transacted in Canadian dollars and converted to U.S. dollars, reported as $3.98. After the transaction Mr. Abraham beneficially owned 35,384 shares. The filing notes the purchase was exempt under Rule 16b-3(c) and 16b-3(d), indicating it was an approved, routine employee plan transaction.

Positive

• Insider participation: EVP purchased shares, showing executive involvement in company equity
• Transaction compliant: Acquisition reported and signed promptly, indicating adherence to Section 16 reporting
• Plan-based purchase: Acquisition made through the Employee Stock Purchase Plan and exempt under Rule 16b-3(c)/(d)

Negative

• None.

Insights

Financial Analyst

TL;DR: Small insider purchase through an employee plan; immaterial to valuation but signals insider participation.

The transaction is a modest acquisition of 609 shares by an executive via the Employee Stock Purchase Plan. The size of the purchase relative to the total post-transaction holding of 35,384 shares suggests limited direct impact on share supply or valuation. The filing documents compliance with Rule 16b-3 exemptions, reducing short-term trading concerns. For investors this is a routine insider activity rather than a material corporate development.

Corporate Governance Expert

TL;DR: Proper use of an approved ESPP with 16b-3 exemptions; filing appears timely and routine.

The Form 4 reflects an ESPP purchase that was reported and signed the day after the trade, showing adherence to Section 16 reporting obligations. Citing Rule 16b-3(c) and (d) confirms the transaction was part of a pre-approved plan, minimizing concerns about self-dealing. The disclosure is standard corporate governance practice and does not indicate governance issues based on the information provided.

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^*

Abraham Phillip D

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Legal and Land.

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2025

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	09/16/2025		A(1)		609	A	$3.98(2)	35,384	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 16, 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	09/17/2025
	** 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

What insider transaction did Gran Tierra Energy (GTE) report on this Form 4?

Phillip Abraham, EVP, Legal and Land, reported acquiring 609 common shares on 09/16/2025 through the Employee Stock Purchase Plan.

How many shares does Phillip Abraham own after the reported transaction?

The filing reports Mr. Abraham beneficially owned 35,384 shares following the transaction.

What price was paid for the shares on the Form 4?

The purchase price is reported as $3.98, noted as transacted in Canadian currency and converted to U.S. dollars.

Was the transaction subject to any exemptions or special rules?

Yes. The Form 4 states the acquisition was exempt under Rule 16b-3(c) and 16b-3(d), reflecting an approved employee plan transaction.

When was the Form 4 signed by the reporting person?

The Form 4 bears the signature of Phillip Abraham dated 09/17/2025.