[SCHEDULE 13G/A] GRAN TIERRA ENERGY INC. SEC Filing

Rhea-AI Filing Summary

Gran Tierra Energy Inc. (GTE) received an amended Schedule 13G/A (Amendment No. 2) reporting beneficial ownership by Daniel Lau, Christine Man, and LM Asset (IM) Inc. as of the event date September 30, 2025. Daniel Lau reports 3,176,800 shares (9.0%), Christine Man 3,002,350 shares (8.5%), and LM Asset (IM) Inc. 2,791,800 shares (7.9%).

Voting and dispositive power are split between sole and shared authority, with shared power primarily at LM Asset (IM) Inc. The filers state the securities were acquired and are held in the ordinary course and not to change or influence control. Percentages are based on 35,290,955 shares outstanding as of July 28, 2025, per the issuer’s Form 10‑Q.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

GRAN TIERRA ENERGY INC.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

38500T200

(CUSIP Number)

09/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 38500T200

1

Names of Reporting Persons

Daniel Lau

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 240,000.00
6	Shared Voting Power 2,936,800.00
7	Sole Dispositive Power 240,000.00
8	Shared Dispositive Power 2,936,800.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,176,800.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.0 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Percentage calculated based on 35,290,955 shares of Common Stock outstanding on July 28, 2025, as reported in the Form 10-Q filed by the Issuer for the quarter ended June 30, 2025.

SCHEDULE 13G

CUSIP No. 38500T200

1

Names of Reporting Persons

Christine Man

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 65,550.00
6	Shared Voting Power 2,936,800.00
7	Sole Dispositive Power 65,550.00
8	Shared Dispositive Power 2,936,800.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,002,350.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.5 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Percentage calculated based on 35,290,955 shares of Common Stock outstanding on July 28, 2025, as reported in the Form 10-Q filed by the Issuer for the quarter ended June 30, 2025.

SCHEDULE 13G

CUSIP No. 38500T200

1

Names of Reporting Persons

LM Asset (IM) Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

CANADA (FEDERAL LEVEL)

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,791,800.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,791,800.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,791,800.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

IA, CO

Comment for Type of Reporting Person: Percentage calculated based on 35,290,955 shares of Common Stock outstanding on July 28, 2025, as reported in the Form 10-Q filed by the Issuer for the quarter ended June 30, 2025.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GRAN TIERRA ENERGY INC.
(b)	Address of issuer's principal executive offices: 500 CENTRE STREET SE CALGARY, ALBERTA, CANADA T2G 1A6
Item 2.
(a)	Name of person filing: Daniel Lau Christine Man LM Asset (IM) Inc. The reporting persons are filing this statement jointly, but not as members of a group. Each reporting person expressly disclaims membership in a group. Each reporting person also disclaims beneficial ownership of the Common Stock except to the extent of that reporting person's pecuniary interest therein.
(b)	Address or principal business office or, if none, residence: 915 - 1055 West Hastings Street, Vancouver, BC, Canada, V6E 2E9
(c)	Citizenship: For citizenship of Filers, see Item 4 of the cover sheet for each Filer.
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 38500T200
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Daniel Lau: 3,176,800 Christine Man: 3,002,350 LM Asset (IM) Inc.: 2,791,800
(b)	Percent of class: Daniel Lau: 9.0% Christine Man: 8.5% LM Asset (IM) Inc.: 7.9%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Daniel Lau: 240,000 Christine Man: 65,550 LM Asset (IM) Inc.: 0
	(ii) Shared power to vote or to direct the vote: Daniel Lau: 2,936,800 Christine Man: 2,936,800 LM Asset (IM) Inc.: 2,791,800
	(iii) Sole power to dispose or to direct the disposition of: Daniel Lau: 240,000 Christine Man: 65,550 LM Asset (IM) Inc.: 0
	(iv) Shared power to dispose or to direct the disposition of: Daniel Lau: 2,936,800 Christine Man: 2,936,800 LM Asset (IM) Inc.: 2,791,800
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Mr. Lau and Ms. Man are the control persons of LM Asset (IM), Inc. and other investment advisers to private investment funds and other accounts. Those investment advisers, funds and accounts have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, Common Stock. However, no individual fund or account beneficially owns more than five percent of the outstanding Common Stock.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Daniel Lau

Signature:	/s/ Daniel Lau
Name/Title:	Reporting person
Date:	11/14/2025

Christine Man

Signature:	/s/ Christine Man
Name/Title:	Reporting person
Date:	11/14/2025

LM Asset (IM) Inc.

Signature:	/s/ Daniel Lau
Name/Title:	Director
Date:	11/14/2025

Exhibit Information

Exhibit 99.1 - Agreement Regarding Joint Filing of Statement on Schedule 13D or 13G

FAQ

What did GTE disclose in this Schedule 13G/A amendment?

It reports beneficial ownership by Daniel Lau, Christine Man, and LM Asset (IM) Inc. as of September 30, 2025.

How many GTE shares does Daniel Lau report?

Daniel Lau reports 3,176,800 shares, representing 9.0% of the class.

What is Christine Man’s reported stake in GTE?

Christine Man reports 3,002,350 shares, or 8.5% of the class.

What does LM Asset (IM) Inc. report?

LM Asset (IM) Inc. reports 2,791,800 shares, equal to 7.9% of the class, with shared voting and dispositive power.

What baseline share count was used to calculate the percentages?

Percentages are based on 35,290,955 shares outstanding as of July 28, 2025, per the issuer’s Form 10‑Q.

Do the reporting persons seek to influence control of GTE?

They certify the securities were acquired and are held in the ordinary course and not to change or influence control.

Are the filers acting as a group?

They filed jointly but disclaim being members of a group and disclaim beneficial ownership beyond pecuniary interest.