Fund moves

Ero Copper (ERO)Frontier Capital Management Co LLC added to its stake +39K shares

Frontier Capital Management Co LLC added to its stake in Ero Copper, per its Q4 2025 13F.

858K
Shares reported · +39K vs prior quarter: 0.26%
Disclosed portfolio weight: $24.3M
Reported value

Holdings as of: Dec 31, 2025
Filed: Feb 17, 2026

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Ero Copper

For Ero Copper, OQRO holds 3 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ERO page.

How this filing works

SEC Form 13F

Other disclosures at Ero Copper

Everything OQRO holds on this company is on its ERO page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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OQRO describes public disclosures and context calculated from them. It does not give personalized advice and does not recommend any transaction. How OQRO treats data