2 institutions reported holding $1,946 of ECA MARCELLUS TR I ROYALTY TRUST (ECTM) in SEC 13F filings for 2026-06-30. Largest institutional holders: Markowski Investments ($1,945), HUNTINGTON NATIONAL BANK ($1). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Markowski Investments | $1,945 | 3,300 | New |
| 2 | HUNTINGTON NATIONAL BANK | $1 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30