Gran Tierra (NYSE: GTE) CEO adds 498 shares via ESPP

Rhea-AI Filing Summary

Gran Tierra Energy President and CEO Gary Guidry acquired 498 shares of common stock on March 17, 2026 at $8.56 per share. The shares were purchased through the Gran Tierra Inc. Employee Stock Purchase Plan, a compensation-related program, and bring his direct holdings to 503,266 shares. The transaction was reported as exempt under Rule 16b-3(d) and Rule 16b-3(c), indicating it was a routine equity compensation acquisition rather than an open-market trade.

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

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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 T2G 1A6

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	03/17/2026		A(1)		498	A	$8.56(2)	503,266	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 March 17, 2026 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	03/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Gran Tierra Energy (GTE) report for Gary Guidry?

Gran Tierra Energy reported that CEO Gary Guidry acquired 498 common shares on March 17, 2026. The shares were obtained through the company’s Employee Stock Purchase Plan, reflecting a routine compensation-related acquisition rather than an open-market trade, and were priced at $8.56 per share.

How many Gran Tierra Energy (GTE) shares does CEO Gary Guidry hold after this Form 4?

After this transaction, CEO Gary Guidry directly holds 503,266 Gran Tierra shares. The filing shows that only 498 shares were added through the Employee Stock Purchase Plan, so the change is small relative to his total direct position, indicating a routine incremental increase in ownership.

Was Gary Guidry’s Gran Tierra (GTE) share acquisition an open-market purchase?

No, the 498-share acquisition by Gary Guidry was through the Employee Stock Purchase Plan, not an open-market purchase. Footnotes state the transaction was exempt under Rule 16b-3(d) and Rule 16b-3(c), underscoring its compensation-related, programmatic nature rather than discretionary market buying.

At what price did Gary Guidry acquire his new Gran Tierra Energy (GTE) shares?

Gary Guidry acquired 498 Gran Tierra shares at a price of $8.56 per share. A footnote explains the purchase price was originally in Canadian currency and was converted into U.S. dollars for reporting, so the disclosed $8.56 figure represents the U.S. currency equivalent.

What does Rule 16b-3 exemption mean for Gran Tierra (GTE) CEO’s share acquisition?

The filing notes Guidry’s acquisition is exempt under Rule 16b-3(d) and 16b-3(c), meaning it is a board-approved, compensation-related transaction. Such exempt equity awards or plan purchases are treated differently from ordinary trading and generally indicate routine insider participation in company compensation programs.