1 institutions reported holding $46 of AMCOL INTERNATIONAL CORP (ACO) in SEC 13F filings for 2026-06-30. Largest institutional holders: HUNTINGTON NATIONAL BANK ($46). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | HUNTINGTON NATIONAL BANK | $46 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30