Form
SCHEDULE 13D
Active or control-oriented beneficial ownership filing.
Equinox Partners Investment Management LLC - 30 Sep 2025 SCHEDULE 13D Report for GRAN TIERRA ENERGY INC. Common Stock, par value $0.001 per share (GTE)
- Filing manager
- Equinox Partners Investment Management LLC
- Reporting owner
- Equinox Partners Investment Management LLC
- Beneficially owned shares
- 5,097,688 shares
- Large-stake signal
-
Ownership
14%Beneficial ownership of this reported class.
Shares
5,097,688 sharesShares beneficially owned as disclosed.
Event date
30 Sep 2025Date tied to the ownership event or amendment.
Accepted by SEC
06 Oct 2025EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 14%
- Symbol
- GTE
- Shares outstanding
- 35,400,611 shares
- SEC form
- SCHEDULE 13D
- Accepted by SEC
- 06 Oct 2025, 19:43:34 UTC
- Event date
- 30 Sep 2025
- Prior SEC filing
- 15 May 2025
- Next SEC filing
- 07 Nov 2025
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
6 source fields
Key filing fact
Equinox Partners Investment Management LLC disclosed 14% ownership in GRAN TIERRA ENERGY INC. Common Stock, par value $0.001 per share (GTE) on 30 Sep 2025.
Key facts
- Equinox Partners Investment Management LLC filed SCHEDULE 13D for GRAN TIERRA ENERGY INC. Common Stock, par value $0.001 per share (GTE).
- Disclosed ownership: 14%.
- Date of event: 30 Sep 2025.
Change
- Previous schedule filing date: 15 May 2025.
- Current filing was accepted on 06 Oct 2025, 19:43.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (5)
Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.
| Name | Ownership | Shares owned | Sole voting power | Shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Equinox Partners Investment Management LLC | 14% | 5,097,688 | 0 | 5,097,688 | /s/ Sean M. Fieler | Sean M. Fieler, Manager | 0000938552 |
| Equinox Partners, L.P. | 6.1% | 2,163,682 | 0 | 2,163,682 | /s/ Sean M. Fieler | Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Equinox Partners, L.P. | 0000933897 |
| Kuroto Fund LP | 1.5% | 538,700 | 0 | 538,700 | /s/ Sean M. Fieler | Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Kuroto Fund LP | 0001080716 |
| Mason Hill Partners, LP | 1% | 343,879 | 0 | 343,879 | /s/ Sean M. Fieler | Sean M. Fieler, Manager of Equinox Partners Investment Management LLC, the Investment Manager of Mason Hill Partners, LP | 0001421771 |
| Sean M. Fieler | 14% | 5,097,688 | 0 | 5,097,688 | /s/ Sean M. Fieler | Sean M. Fieler |
CIK / CUSIP context first