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

Rhea-AI Filing Summary

Director David P. Smith reported securities activity in Gran Tierra Energy Inc. (GTE) on 10/03/2025. The filing shows a stock option exercise of 4,798 shares with an exercise/conversion price listed as $2.30, and matching entries reporting 4,798 common shares acquired and 4,798 common shares disposed on the same date with prices shown as $4.26 and $2.30. Following the transactions, total beneficial ownership from derivative holdings is reported as 22,141 shares.

Positive

• Option exercise recorded: 4,798 shares exercised at $2.30
• Beneficial ownership disclosed: total derivative‑linked ownership reported as 22,141 shares

Negative

• Concurrent disposition reported: 4,798 common shares disposed on 10/03/2025
• Price inconsistency requires clarity: acquisition and disposition prices differ ($4.26 vs $2.30) and the filing provides no narrative explanation

Insights

Corporate Insider Transactions Analyst

Director exercised options and reported same‑day buy and sale of 4,798 shares.

The filing documents a stock option exercise of 4,798 shares at an exercise price shown as $2.30 on 10/03/2025, and simultaneous entries showing acquisition and disposition of 4,798 common shares with prices listed as $4.26 and $2.30. This pattern is consistent with exercising options and reporting resulting share movements.

Key dependencies include exact settlement and execution mechanics and any directed sale instructions; the filing does not disclose whether the shares were held or immediately sold post‑exercise. Investors can note the updated beneficial ownership of 22,141 shares as the concrete post‑transaction metric to track in subsequent filings.

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^*

Smith David P

(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	$4.26	4,798	D
Common Stock	10/03/2025		D		4,798	D	$2.3	0	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	22,141	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 Gran Tierra Energy director David P. Smith report on Form 4 (GTE)?

The director reported a stock option exercise of 4,798 shares on 10/03/2025 with an exercise price listed as $2.30, and matching entries for 4,798 shares acquired and 4,798 shares disposed on the same date.

How many shares does David P. Smith beneficially own after the transactions?

The filing shows derivative‑linked beneficial ownership totaling 22,141 shares following the reported transactions.

What prices are reported for the transactions in the Form 4?

The Form 4 lists prices of $4.26 and $2.30 associated with the reported acquisition and disposition entries on 10/03/2025.

On what date were the transactions executed?

All reported transactions and the option exercise date are listed as 10/03/2025.

Who signed the Form 4 filing for the reporting person?

The Form 4 is signed by Phillip Abraham, Attorney‑in‑Fact on 10/08/2025.