Gran Tierra Energy (NYSE: GTE) director and 10% holder buy shares

Rhea-AI Filing Summary

Gran Tierra Energy Inc. director and 10% owner group led by Equinox Partners Investment Management LLC reported small open-market share purchases. On 11/26/2025, the group bought 1,025 common shares through Equinox Partners, L.P. and 3,075 common shares through a managed account, each at $4.36 per share.

After these trades, the filing shows 2,584,304 shares beneficially owned via Equinox Partners, L.P., 2,586,854 shares via the managed account, 659,996 shares via Kuroto Fund LP, and 550,317 shares via Mason Hill Partners, LP, all reported as indirect holdings. The reporting persons, including EPIM and Sean M. Fieler, state they may be deemed to beneficially own these securities through their advisory and control relationships, but each disclaims beneficial ownership beyond their economic interest.

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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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^*

Equinox Partners Investment Management LLC

(Last) (First) (Middle)

THREE STAMFORD PLAZA

301 TRESSER BLVD, 13TH FL

(Street)

STAMFORD CT 06901

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

3. Date of Earliest Transaction (Month/Day/Year)
11/26/2025

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

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

	Form filed by One Reporting Person
X	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 Shares, par value $0.001 per share	11/26/2025		P		1,025	A	$4.36	2,584,304	I(1)(2)	By Equinox Partners, L.P.
Common Shares, par value $0.001 per share	11/26/2025		P		3,075	A	$4.36	2,586,854	I(1)	By Managed Account
Common Shares, par value $0.001 per share								659,996	I(1)(2)	By Kuroto Fund LP
Common Shares, par value $0.001 per share								550,317	I(1)(2)	By Mason Hill Partners, LP

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

1. Name and Address of Reporting Person^*

Equinox Partners Investment Management LLC

(Last) (First) (Middle)

THREE STAMFORD PLAZA

301 TRESSER BLVD, 13TH FL

(Street)

STAMFORD CT 06901

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

EQUINOX PARTNERS LP

(Last) (First) (Middle)

THREE STAMFORD PLAZA

301 TRESSER BLVD, 13TH FL

(Street)

STAMFORD CT 06901

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

KUROTO FUND LP

(Last) (First) (Middle)

THREE STAMFORD PLAZA

301 TRESSER BLVD, 13TH FL

(Street)

STAMFORD CT 06901

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

MASON HILL PARTNERS LP

(Last) (First) (Middle)

THREE STAMFORD PLAZA

301 TRESSER BLVD, 13TH FL

(Street)

STAMFORD CT 06901

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein. The filing of this Form 4 shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, the beneficial owners of any securities of the Issuer he or it does not directly own.

2. EPIM is the investment advisor to Equinox Partners, L.P., Kuroto Fund LP, and Mason Hill Partners, LP (collectively, the "Funds"). Mr. Fieler is the president of EPIM. By virtue of these relationships, each of EPIM and Mr. Fieler may be deemed to beneficially own the securities owned directly by the Funds.

Remarks:

This Form 4 is filed jointly by Equinox Partners Investment Management LLC ("EPIM"), Sean M. Fieler, Equinox Partners, L.P., Kuroto Fund LP, and Mason Hill Partners, LP (collectively, the "Reporting Persons").

	EQUINOX PARTNERS INVESTMENT MANAGEMENT LLC /s/ Sean M. Fieler Sean M. Fieler, Manager	12/01/2025
	EQUINOX PARTNERS, L.P. /s/ Sean M. Fieler Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Equinox Partners, L.P.	12/01/2025
	KUROTO FUND LP /s/ Sean M. Fieler Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Kuroto Fund LP	12/01/2025
	MASON HILL PARTNERS, LP /s/ Sean M. Fieler Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Mason Hill Partners, LP	12/01/2025
	Sean M. Fieler /s/ Sean M. Fieler	12/01/2025
	** 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).
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FAQ

What insider transaction did Gran Tierra Energy (GTE) report in this Form 4?

The filing reports that a director and 10% owner group associated with Equinox Partners bought 1,025 Gran Tierra Energy common shares through Equinox Partners, L.P. and 3,075 shares through a managed account on 11/26/2025, at a price of $4.36 per share.

Who are the reporting persons in the Gran Tierra Energy (GTE) Form 4?

The Form 4 is filed jointly by Equinox Partners Investment Management LLC (EPIM), Sean M. Fieler, Equinox Partners, L.P., Kuroto Fund LP, and Mason Hill Partners, LP, collectively described as the reporting persons.

How many Gran Tierra Energy (GTE) shares are beneficially owned after the reported transactions?

After the reported purchases, the filing shows beneficial ownership of 2,584,304 shares via Equinox Partners, L.P., 2,586,854 shares via a managed account, 659,996 shares via Kuroto Fund LP, and 550,317 shares via Mason Hill Partners, LP, all held indirectly.

What is the relationship of the reporting persons to Gran Tierra Energy (GTE)?

The reporting persons are identified as a director and 10% owner of Gran Tierra Energy Inc. EPIM acts as investment adviser to the funds, and Sean M. Fieler is EPIM’s president.

Do the reporting persons claim full beneficial ownership of all reported GTE shares?

No. The filing states that each reporting person disclaims beneficial ownership of the securities reported except to the extent of his or its pecuniary interest and that the filing should not be deemed an admission of beneficial ownership of shares not directly owned.

Were any derivative securities reported for Gran Tierra Energy (GTE) in this Form 4?

The section for derivative securities is included, but no derivative transactions or holdings are filled in, so only non-derivative common shares are reported in this filing.