[Form 4] GRAN TIERRA ENERGY INC. Insider Trading Activity

Rhea-AI Filing Summary

Gran Tierra Energy (GTE): insider group reported open‑market share purchases. A joint Form 4 by Equinox Partners Investment Management (EPIM), Sean M. Fieler, and affiliated funds discloses purchases totaling 648,000 common shares across three trading days.

The group bought 276,000 shares on 11/04/2025 at $3.79, 172,000 shares on 11/05/2025 at $4.02, and 200,000 shares on 11/06/2025 at $4.07, all coded “P” for open‑market buys. Following these transactions, reported indirect holdings include 2,379,466 shares by Equinox Partners, L.P., 610,628 by Kuroto Fund LP, 487,735 by Mason Hill Partners, LP, and 2,267,859 by a managed account.

The filing notes the reporting persons are a Director and 10% Owner and that beneficial ownership is disclaimed except to the extent of pecuniary interest.

Insights

Equity market microstructure analyst

Insider group disclosed 648,000 open‑market GTE share buys.

The filing lists three consecutive sessions of open‑market purchases: 276,000 shares at $3.79 on 11/04/2025, 172,000 at $4.02 on 11/05/2025, and 200,000 at $4.07 on 11/06/2025. Transactions are reported as indirect holdings across affiliated funds and a managed account.

Post‑trade positions are reported as 2,379,466 shares for Equinox Partners, L.P., 610,628 for Kuroto Fund LP, 487,735 for Mason Hill Partners, LP, and 2,267,859 for a managed account. The filing includes a standard disclaimer of beneficial ownership beyond pecuniary interest.

As a routine ownership update, this is informational. Actual market impact depends on broader trading volumes and subsequent disclosures in periodic filings.

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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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^*

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)
11/04/2025

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	11/04/2025		P		91,908	A	$3.79	2,255,590	I(1)(2)	By Equinox Partners, L.P.
Common Shares, par value $0.001 per share	11/04/2025		P		30,636	A	$3.79	569,336	I(1)(2)	By Kuroto Fund LP
Common Shares, par value $0.001 per share	11/04/2025		P		61,272	A	$3.79	405,151	I(1)(2)	By Mason Hill Partners, LP
Common Shares, par value $0.001 per share	11/04/2025		P		92,184	A	$3.79	2,143,611	I(1)	By Managed Account
Common Shares, par value $0.001 per share	11/05/2025		P		57,276	A	$4.02	2,312,866	I(1)(2)	By Equinox Partners, L.P.
Common Shares, par value $0.001 per share	11/05/2025		P		19,092	A	$4.02	588,428	I(1)(2)	By Kuroto Fund LP
Common Shares, par value $0.001 per share	11/05/2025		P		38,184	A	$4.02	443,335	I(1)(2)	By Mason Hill Partners, LP
Common Shares, par value $0.001 per share	11/05/2025		P		57,448	A	$4.02	2,201,059	I(1)	By Managed Account
Common Shares, par value $0.001 per share	11/06/2025		P		66,600	A	$4.07	2,379,466	I(1)(2)	By Equinox Partners, L.P.
Common Shares, par value $0.001 per share	11/06/2025		P		22,200	A	$4.07	610,628	I(1)(2)	By Kuroto Fund LP
Common Shares, par value $0.001 per share	11/06/2025		P		44,400	A	$4.07	487,735	I(1)(2)	By Mason Hill Partners, LP
Common Shares, par value $0.001 per share	11/06/2025		P		66,800	A	$4.07	2,267,859	I(1)	By Managed Account

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	11/06/2025
	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.	11/06/2025
	KUROTO FUND LP /s/ Sean M. Fieler Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Kuroto Fund LP	11/06/2025
	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	11/06/2025
	/s/ Sean M. Fieler Sean M. Fieler	11/06/2025
	** 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.
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FAQ

How many GTE shares were purchased by the insider group?

The filing reports purchases totaling 648,000 common shares across three trading days.

On what dates and prices were GTE shares bought?

Purchases occurred on 11/04/2025 at $3.79, 11/05/2025 at $4.02, and 11/06/2025 at $4.07.

Who filed the GTE Form 4?

It was filed jointly by EPIM, Sean M. Fieler, Equinox Partners, L.P., Kuroto Fund LP, and Mason Hill Partners, LP.

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

The filing identifies the reporting persons as a Director and 10% Owner.

What are the reported holdings after these transactions?

Reported indirect holdings are 2,379,466 (Equinox Partners, L.P.), 610,628 (Kuroto Fund LP), 487,735 (Mason Hill Partners, LP), and 2,267,859 (managed account).

Were the transactions open‑market purchases or derivative exercises?

They were coded P, indicating open‑market purchases. No derivative transactions were reported.