1 institutions reported holding $575,690 of Cornerstone Bancorp Inc/IL (CNBP) in SEC 13F filings for 2026-03-31. Largest institutional holders: Siena Capital Partners GP, LLC ($575,690). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Siena Capital Partners GP, LLC | $575,690 | 5,006 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31