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

Rhea-AI Filing Summary

Phillip Abraham, Executive Vice President, Legal and Land of Gran Tierra Energy Inc. (GTE), acquired 550 shares of the issuer's common stock on October 1, 2025 through the company's Employee Stock Purchase Plan. The reported purchase price was $4.35 per share (originally transacted in Canadian dollars and converted to U.S. dollars). Following this transaction, Mr. Abraham beneficially owns 35,934 shares. The filing notes the purchase was exempt under Rule 16b-3(c) and 16b-3(d), indicating it was made pursuant to a company plan. The Form 4 is signed and dated October 3, 2025.

Positive

• Insider purchase of 550 shares through the company ESPP on 10/01/2025
• Transaction exempt under Rule 16b-3(c) and 16b-3(d), indicating it was made under an authorized employee plan
• Reporting person retains 35,934 shares following the acquisition

Negative

• None.

Insights

Corporate Governance Analyst

Insider participation via ESPP shows routine, plan-based acquisition.

The report documents a small, compliant purchase of 550 shares under the company's Employee Stock Purchase Plan on 10/01/2025. The transaction is described as exempt under Rule 16b-3(c) and 16b-3(d), which applies to acquisitions made under authorized employee plans.

After the purchase, the reporting person holds 35,934 shares in total. This filing is procedural and confirms adherence to insider reporting rules; it does not disclose any unusual transactions, dispositions, or derivative activity.

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^*

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)
10/01/2025

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	10/01/2025		A(1)		550	A	$4.35(2)	35,934	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 October 1, 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	10/03/2025
	** 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 did Gran Tierra Energy (GTE) insider Phillip Abraham report on Form 4?

Mr. Abraham reported acquiring 550 shares on 10/01/2025 via the company Employee Stock Purchase Plan at an effective price of $4.35 per share (converted from CAD).

How many shares does Phillip Abraham own after the transaction?

The Form 4 states he beneficially owns 35,934 shares following the reported purchase.

Was the purchase subject to insider-trading plan exemptions?

Yes. The filing specifies the acquisition was exempt under Rule 16b-3(c) and Rule 16b-3(d), consistent with purchases under company plans.

When was the Form 4 signed and filed?

The signature on the Form 4 is dated 10/03/2025.

Did the Form 4 report any option exercises, sales, or derivative transactions?

No. The filing lists only a non-derivative acquisition of common stock and contains no exercised options, sales, or derivative activity.