Ero Copper Corp.
ERO- Exchange
- NYSE
- Industry
- Metal Mining
- SEC CIK
- 0001853860
No open-market purchases or sales by Ero Copper Corp. insiders were filed in the last 90 days; 207 institutions reported holding it in 13F filings for Q2 2026, worth $1.87B in total; no superinvestor holds it.
Holders of 5% or more of ERO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Ero Copper Corp., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| GMT Capital Corp | 13G/A | 6.28%6.51M shares | −0.93 ppfrom 7.21% | Feb 14, 20254 filings | Nov 14, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
4 Schedule 13D and 13G filings on Ero Copper Corp., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 202511:03 AM ET | GMT Capital Corpand 1 other | 13G/A | 6.28%6.51M shares | −0.93 ppfrom 7.21% | Sep 30, 2025 | SEC |
| Aug 14, 202511:39 AM ET | GMT Capital Corpand 1 other | 13G/A | 7.21%7.47M shares | +0.52 ppfrom 6.69% | Jun 30, 2025 | SEC |
| May 15, 20259:24 AM ET | GMT Capital Corpand 1 other | 13G/A | 6.69%6.93M shares | +1.23 ppfrom 5.46% | Mar 31, 2025 | SEC |
| Feb 14, 20253:04 PM ET | GMT Capital Corpand 1 other | 13G/A | 5.46%5.64M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Ero Copper Corp. shares.
No Form 144 notices for Ero Copper Corp. are on file.