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  4. [Form 4] Gran Tierra Energy Inc. Insider Trading Activity

Gran Tierra CEO Adds Shares via ESPP; Ownership Near 0.49M

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Gran Tierra Energy Inc. (GTE) – Form 4 filing

President & CEO Gary Guidry purchased 934 shares of Gran Tierra common stock on 1 Aug 2025 through the company’s Employee Stock Purchase Plan. The transaction, exempt under Rules 16b-3(d) and 16b-3(c), was executed at a converted price of US$4.53 per share. After the purchase, Guidry’s direct ownership stands at 489,505 shares. No sales, derivative securities, or additional transactions were reported. The Form 4 was signed by attorney-in-fact Phillip Abraham on 5 Aug 2025.

Positive

  • CEO increased direct ownership by 934 shares, demonstrating ongoing participation in the company’s Employee Stock Purchase Plan.

Negative

  • Transaction size is immaterial, adding only ~0.2% to the CEO’s existing holdings and unlikely to influence valuation.

Insights

TL;DR: Minor ESPP purchase by CEO; negligible ownership change, neutral signal.

The 934-share acquisition increases the CEO’s direct stake by roughly 0.2%, leaving him with 489,505 shares. While insider buying is generally viewed positively, the size relative to existing ownership and Gran Tierra’s float is immaterial. The transaction occurred under the routine Employee Stock Purchase Plan and is exempt from short-swing profit rules, suggesting no strategic shift. Overall market impact is expected to be neutral; investors may note continued participation in the ESPP but should not read it as a decisive indicator of future performance.

Insider Guidry Gary
Role President and CEO
Type Security Shares Price Value
Grant/Award Common Stock 934 $4.53 $4K
Holdings After Transaction: Common Stock — 489,505 shares (Direct)
Footnotes (1)
  1. These shares were acquired on August 1, 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). Purchase price of security was transacted in Canadian currency and converted to U.S. currency.
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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*
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)
08/01/2025
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 08/01/2025 A(1) 934 A $4.53(2) 489,505 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 1, 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 08/05/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

How many GTE shares did the CEO buy?

Gary Guidry acquired 934 shares on 1 Aug 2025.

What price was paid for the shares?

The shares were purchased at US$4.53 per share (converted from CAD).

What is the CEO’s total ownership after the transaction?

Following the purchase, Guidry directly owns 489,505 GTE shares.

Were any derivative securities involved?

No. The filing reports no derivative security transactions.

Was the purchase part of a 10b5-1 plan?

Yes. The form notes the transaction was made under the company’s Employee Stock Purchase Plan, qualifying for Rule 16b-3 exemptions.