As of November 6, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Gran Tierra Energy Inc. The largest reported stake is Daniel Lau's, at 13.6%. 13 filings are on record since August 14, 2025 (Schedule 13G/A, August 12, 2026).
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Key facts
- · Reporting person: Equinox Partners Investment Management LLC · Sole voting: 0 · Shared voting: 1,533,793 · Sole dispositive: 0 · Shared dispositive: 1,533,793 · SCHEDULE 13G/A, 2026-09-17
- · Holder: Equinox Partners Investment Management LLC · Percent: 9.8% · SCHEDULE 13G
- · Holder: Equinox Partners Investment Management LLC · Percent: 11.7% · SCHEDULE 13D/A
- · Reporting person: Daniel Lau · Sole voting: 240,000 · Shared voting: 4,572,420 · Sole dispositive: 240,000 · Shared dispositive: 4,572,420 · SCHEDULE 13G/A, 2026-08-12
- · Holder: Equinox Partners Investment Management LLC · Percent: 13.5% · SCHEDULE 13D/A
Gran Tierra Energy Inc. has 13 Schedule 13D or 13G filings on record since 2025-08-14. 1 holder's latest filing reports 5% or more of common stock, par value $0.001 per share (the "shares"). Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 13.6% | 4,812,420 | SCHEDULE 13G/A, 2026-08-12 | 2026-06-30 | |
| Equinox Partners Investment Management LLC | 4.3% | 1,533,793 | SCHEDULE 13G/A, 2026-09-17 | 2026-09-11 |
| Encompass Capital Advisors LLC | 0% | 0 | SCHEDULE 13G/A, 2025-11-14 | 2025-09-30 |
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More on Gran Tierra Energy Inc. and the records around it.
Gran Tierra Energy Inc. elsewhere on the record
Companies that share a holder
- Equinox Partners Investment Management LLC also filed stake reports on 4 other companies: Silvercrest Asset Management Group Inc. (Oct 2026), Rise Gold Corp. (Feb 2026), Galiano Gold Inc. (Nov 2025)
- Encompass Capital Advisors LLC also filed stake reports on 18 other companies: Sable Offshore Corp. (Oct 2026), EagleRock Land, LLC (Aug 2026), HMH Holding Inc. (Aug 2026)
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What the Full Report on Gran Tierra Energy Inc. covers
The Short Answer
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Daniel Lau | 240,000 | 4,572,420 | 240,000 | 4,572,420 | SCHEDULE 13G/A, 2026-08-12 |
| Christine Man | 65,550 | 4,572,420 | 65,550 | 4,572,420 | SCHEDULE 13G/A, 2026-08-12 |
| LM Asset Management Inc. | 0 | 4,365,420 | 0 | 4,365,420 | SCHEDULE 13G/A, 2026-08-12 |
| LM Asset Fund Limited Partnership | 0 | 2,847,800 | 0 | 2,847,800 | SCHEDULE 13G/A, 2026-08-12 |
| LM Asset General Partner Ltd. | 40,000 | 3,608,020 | 40,000 | 3,608,020 | SCHEDULE 13G/A, 2026-08-12 |
| Equinox Partners Investment Management LLC | 0 | 1,533,793 | 0 | 1,533,793 | SCHEDULE 13G/A, 2026-09-17 |
| Equinox Partners, L.P. | 0 | 611,231 | 0 | 611,231 | SCHEDULE 13G/A, 2026-09-17 |
| Kuroto Fund LP | 0 | 156,116 | 0 | 156,116 | SCHEDULE 13G/A, 2026-09-17 |
| Mason Hill Partners, LP | 0 | 155,102 | 0 | 155,102 | SCHEDULE 13G/A, 2026-09-17 |
| Sean M. Fieler | 0 | 1,533,793 | 0 | 1,533,793 | SCHEDULE 13G/A, 2026-09-17 |
The latest filing identifies Gran Tierra Energy Inc. by CUSIP 38500T200 and gives its principal executive office as 500 Centre Street S.E., Calgary (SCHEDULE 13G/A, 2026-09-17).
What the percentages are based on
The following percentages are based on 35,380,429 Shares outstanding as of July 31, 2026 as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on August 5, 2026. (i) EPIM's beneficial ownership of 1,533,793 Shares represents approximately 4.3% of the outstanding Shares.Equinox Partners Investment Management LLC, SCHEDULE 13G/A, 2026-09-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-14 | Daniel Lau | 7.2% | SCHEDULE 13G/A |
| 2025-10-06 | Equinox Partners Investment Management LLC | 14.4% | SCHEDULE 13D |
| 2025-11-07 | Equinox Partners Investment Management LLC | 16.4% | SCHEDULE 13D/A |
| 2025-11-14 | Daniel Lau | 9% | SCHEDULE 13G/A |
| 2025-11-14 | Encompass Capital Advisors LLC | 0% | SCHEDULE 13G/A |
| 2025-11-19 | Equinox Partners Investment Management LLC | 17.6% | SCHEDULE 13D/A |
| 2025-12-19 | Daniel Lau | 11.5% | SCHEDULE 13G/A |
| 2026-01-07 | Daniel Lau | 12% | SCHEDULE 13G/A |
| 2026-08-07 | Equinox Partners Investment Management LLC | 13.5% | SCHEDULE 13D/A |
| 2026-08-12 | Daniel Lau | 13.6% | SCHEDULE 13G/A |
| 2026-08-13 | Equinox Partners Investment Management LLC | 11.7% | SCHEDULE 13D/A |
| 2026-08-17 | Equinox Partners Investment Management LLC | 9.8% | SCHEDULE 13G |
| 2026-09-17 | Equinox Partners Investment Management LLC | 4.3% | SCHEDULE 13G/A |
Questions about who owns Gran Tierra Energy Inc.
Who owns Gran Tierra Energy Inc.?
On this page, one holder's latest ownership filing reports 5% or more of Gran Tierra Energy Inc.: Daniel Lau (13.6%, Schedule 13G/A, filed 2026-08-12).
When did Daniel Lau buy into Gran Tierra Energy Inc.?
The filings give report dates, not purchase dates. The earliest filing from Daniel Lau on this page is the Schedule 13G/A, filed 2025-08-14, reporting 7.2%; its latest, Schedule 13G/A filed 2026-08-12, reports 13.6%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 13 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.