Gran Tierra (NYSE: GTE) COO exercises 26,750 options and sells shares

Rhea-AI Filing Summary

Gran Tierra Energy’s Chief Operating Officer Sebastien Morin reported routine equity transactions involving company stock. On March 30, 2026, he exercised stock options to acquire 26,750 shares of common stock at $6.83 per share and sold the same 26,750 shares in open-market transactions at $9.42 per share, leaving him with 33,034 common shares directly owned afterward.

On April 1, 2026, he acquired an additional 307 common shares at $9.78 per share through Gran Tierra’s Employee Stock Purchase Plan in a transaction exempt under Rules 16b-3(d) and 16b-3(c), bringing his direct holdings to 33,304 shares. These actions reflect compensation-related activity and liquidity rather than a pure open-market purchase.

Insights

Equity compensation analyst

COO’s filing shows routine option exercise-and-sell plus small ESPP buy.

Chief Operating Officer Sebastien Morin exercised stock options for 26,750 common shares at $6.83 and sold the same number at $9.42. This is a classic exercise-and-sell pattern, converting an existing option position into cash while maintaining a meaningful remaining equity stake.

He also bought 307 shares at $9.78 through the company’s Employee Stock Purchase Plan, a typical employee benefit, in a transaction exempt under Rule 16b-3(d) and 16b-3(c). After these moves, he directly owns 33,304 shares, so the net effect is a mix of liquidity and ongoing alignment with shareholders rather than a large directional bet.

Insider Trade Summary

Net Seller: 26,750 shares ($251,985)

Net Sell 4 txns

Insider Morin Sebastien

Role Chief Operating Officer

Sold 26,750 shs ($252K)

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	307	$9.78	$3K
Exercise	Stock Option (Right to buy)	26,750	$0.00	--
Exercise	Common Stock	26,750	$6.83	$183K
Sale	Common Stock	26,750	$9.42	$252K

Holdings After Transaction: Common Stock — 33,304 shares (Direct); Stock Option (Right to buy) — 13,375 shares (Direct)

Footnotes (1)

1. These shares were acquired on April 1, 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). Purchase price of security was transacted in Canadian currency and converted to U.S. currency. One-third of the stock options vested on November 6, 2024, an additional one-third of the stock options vested on November 6, 2025 and the remaining one-third of the stock options will vest on November 6, 2026.

Key Figures

Options exercised: 26,750 shares at $6.83 Shares sold: 26,750 shares at $9.42 ESPP acquisition: 307 shares at $9.78 +1 more

4 metrics

Options exercised 26,750 shares at $6.83 Stock option exercise on March 30, 2026

Shares sold 26,750 shares at $9.42 Open-market or private sale on March 30, 2026

ESPP acquisition 307 shares at $9.78 Employee Stock Purchase Plan on April 1, 2026

Shares held after transactions 33,304 shares Direct ownership after April 1, 2026 ESPP purchase

Key Terms

Employee Stock Purchase Plan, Rule 16b-3(d), Rule 16b-3(c), Stock Option (Right to buy)

4 terms

Employee Stock Purchase Plan financial

"These shares were acquired on April 1, 2026 through the Gran Tierra Inc. Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Rule 16b-3(d) regulatory

"exempt under both Rule 16b-3(d) and Rule 16b-3(c)"

Rule 16b-3(c) regulatory

"exempt under both Rule 16b-3(d) and Rule 16b-3(c)"

An SEC rule that lets corporate insiders avoid automatic "short‑swing" profit recovery when they buy or sell their company’s stock under a pre‑approved, written plan that meets specific conditions. For investors, it matters because it clarifies when insider trades are treated as routine, reducing legal uncertainty and helping distinguish trades made for ordinary compensation or pre‑planned reasons from those that might signal opportunistic or timely insider advantage.

Stock Option (Right to buy) financial

"security_title": "Stock Option (Right to buy)""

Form 4 Insider Transactions: What Each Field Means →

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^*

Morin Sebastien

(Last) (First) (Middle)

C/O GRAN TIERRA ENERGY INC.

500 CENTRE STREET SE

(Street)

CALGARY T2G 1A6

(City) (State) (Zip)

ALBERTA, CANADA

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/30/2026

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	04/01/2026		A(1)		307	A	$9.78(2)	33,304	D
Common Stock	03/30/2026		M		26,750	A	$6.83	60,054	D
Common Stock	03/30/2026		S		26,750	D	$9.42	33,034	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)	$6.83	03/30/2026		M			26,750	(3)	11/06/2028	Common Stock	26,750	$0	13,375	D

Explanation of Responses:

1. These shares were acquired on April 1, 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.

3. One-third of the stock options vested on November 6, 2024, an additional one-third of the stock options vested on November 6, 2025 and the remaining one-third of the stock options will vest on November 6, 2026.

	/s/ Phillip Abraham, Attorney-In Fact	04/02/2026
	** 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 did Gran Tierra Energy (GTE) COO Sebastien Morin report in this Form 4?

He reported exercising options for 26,750 Gran Tierra shares at $6.83 and selling the same number at $9.42, plus acquiring 307 shares at $9.78 through the Employee Stock Purchase Plan, ending with 33,304 shares held directly.

Did the Gran Tierra (GTE) COO buy or sell shares in the open market?

He sold 26,750 Gran Tierra common shares in open-market or private transactions at $9.42 per share, immediately after exercising options at $6.83. This turned an existing option position into cash while he still retained tens of thousands of shares.

How many Gran Tierra (GTE) shares does the COO hold after these transactions?

Following the March 30, 2026 option exercise and sale, and the April 1, 2026 Employee Stock Purchase Plan acquisition, Chief Operating Officer Sebastien Morin directly owns 33,304 Gran Tierra common shares, reflecting continued equity exposure alongside his compensation-related trades.

What is the significance of the 26,750 options exercised by Gran Tierra’s COO?

He exercised 26,750 stock options at $6.83 per share, then sold the resulting 26,750 shares at $9.42. This exercise-and-sell pattern is typical for monetizing vested options and does not by itself signal a change in long-term outlook.

What is the Gran Tierra (GTE) Employee Stock Purchase Plan mentioned in the Form 4?

The Employee Stock Purchase Plan allowed the COO to acquire 307 Gran Tierra shares at $9.78 on April 1, 2026. The filing notes this ESPP transaction was exempt under Rule 16b-3(d) and Rule 16b-3(c), underscoring it as a standard employee benefit program.

Were Gran Tierra (GTE) COO transactions under any special SEC exemptions?

Yes. The acquisition of 307 shares through the Employee Stock Purchase Plan on April 1, 2026 was exempt under SEC Rules 16b-3(d) and 16b-3(c). These exemptions typically apply to issuer-approved employee benefit and compensation-related transactions.