FORM 10-K

Company

ECA Marcellus Trust I

Filed

March 24, 2026

Period of Report

December 31, 2025

Accession Number

0001104659-26-033852

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →