Gran Tierra (GTE) Form 4: CEO Acquires 1,080 Shares Under ESPP

Rhea-AI Filing Summary

Gran Tierra Energy Inc. (GTE) Form 4 shows that Gary Guidry, President and CEO and a director, acquired 1,080 shares of the company's common stock on 08/18/2025 through the Gran Tierra Employee Stock Purchase Plan. The reported purchase price was C$ and converted to U.S. dollars to $3.91 per share. After the transaction, Mr. Guidry is shown as beneficially owning 490,585 shares. The filing notes the purchase was exempt under Rule 16b-3(c) and 16b-3(d), indicating it was an employee-plan acquisition compliant with Section 16 rules.

Insights

Corporate Governance Expert

TL;DR: CEO purchased a small number of shares via ESPP, showing routine insider participation under company plan.

The filing documents an employee stock purchase plan (ESPP) acquisition by the company's President and CEO, executed under Rule 16b-3 exemptions. Such transactions are common and typically reflect participation in compensation programs rather than a discrete signal about near-term company fundamentals. The reported holding after the purchase is 490,585 shares, which provides transparency on executive ownership. No derivative transactions or dispositions are reported. From a governance perspective, the timely Form 4 filing and the use of the Rule 16b-3 safe harbor are standard compliance practices.

Securities Analyst

TL;DR: Small ESPP purchase by CEO; immaterial to valuation but increases disclosed insider ownership.

The 1,080-share purchase at a reported $3.91 per share (converted from Canadian dollars) is a routine acquisition through an employee plan and does not constitute a large open-market transaction. The filing does not show any sales or option exercises. For investors, the key facts are the transaction type, compliance with Rule 16b-3, and the resulting beneficial ownership of 490,585 shares. Because the filing contains only this single non-derivative purchase, its immediate impact on market valuation is likely neutral.

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^*

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)
08/18/2025

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	08/18/2025		A(1)		1,080	A	$3.91(2)	490,585	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 August 18, 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	08/20/2025
	** 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 CEO Gary Guidry report on Form 4?

He reported acquiring 1,080 common shares on 08/18/2025 through the Gran Tierra Employee Stock Purchase Plan.

How many shares does Gary Guidry beneficially own after the transaction?

490,585 shares are reported as beneficially owned following the purchase.

At what price were the shares purchased?

The purchase price is shown as $3.91 per share after conversion from Canadian currency to U.S. dollars.

Was the transaction compliant with Section 16 rules?

Yes. The filing states the acquisition was exempt under Rule 16b-3(c) and 16b-3(d), consistent with employee-plan transactions.

When was the Form 4 filed and signed?

The transaction date is 08/18/2025 and the Form 4 is signed by an attorney-in-fact on 08/20/2025.