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

Rhea-AI Filing Summary

Director purchase and option exercise at Gran Tierra Energy (GTE). A Form 4 filed for Wade Brooke N. reports an open-market purchase of 4,798 shares at $4.63 on 10/03/2025, bringing direct common stock holdings to 224,926 shares. The filing also records the acquisition of 4,798 shares via exercise of stock options with an exercise price of $2.30, leaving 11,938 derivative securities beneficially owned following the transaction. The form was signed by an attorney-in-fact on 10/08/2025.

Positive

• Director increased equity stake by purchasing 4,798 shares at $4.63
• Options exercised to acquire 4,798 shares at an exercise price of $2.30, showing usage of vested compensation

Negative

• None.

Insights

Director / Corporate Insider

Director increased direct holdings through a purchase and option exercise on 10/03/2025.

The reporting person completed a market purchase of 4,798 common shares at $4.63 and simultaneously exercised options that resulted in 4,798 additional common shares. After these actions the director directly holds 224,926 common shares and beneficially owns 11,938 derivative securities.

This pattern is a routine form 4 disclosure showing both purchase and option exercise; key dependencies include the exercised option terms (exercise price $2.30) and the timing of filings. Monitor any future filings for further purchases or sales within the next 30–90 days to see if this reflects a sustained buying trend.

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^*

Wade Brooke N.

(Last) (First) (Middle)

C/O GRAN TIERRA ENERGY INC.

500 CENTRE STREET S.E.

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/03/2025

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	10/03/2025		M		4,798	A	$4.63	224,926	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
Stock Option (Right to buy)	$2.3	10/03/2025		M			4,798	09/30/2025	09/30/2025	Common Stock	4,798	$0	11,938	D

Explanation of Responses:

	/s/ Phillip Abraham, Attorney-In Fact	10/08/2025
	** 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 GTE director Wade Brooke N. report on the Form 4?

The director reported a purchase of 4,798 common shares at $4.63 and the exercise of options yielding 4,798 shares on 10/03/2025.

How many GTE shares does the reporting person hold after the transactions?

Following the transactions the reporting person beneficially owns 224,926 common shares and 11,938 derivative securities.

What was the option exercise price reported on the Form 4?

The exercise price for the reported stock option was $2.30.

When was the Form 4 signed and filed?

The Form 4 bears an electronic signature dated 10/08/2025, with the transactions dated 10/03/2025.

Was the filing made by one reporting person or jointly?

The filing indicates it was made by one reporting person.