DOSSIER · 13F Holders · Q3 2026
CNBP

Cornerstone Bancorp Inc/IL

2 institutions still hold Cornerstone Bancorp Inc/IL as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 21925H100·2 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$938K
visible holders
Holders
2
filers reporting
Concentration
64.06%
Siena Capital Partners GP, LLC #1
top holder share
AI Holders Summary · Q3 2026

2 institutions reported CNBP in Q3 2026. Siena Capital Partners GP, LLC leads at 64.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Siena Capital Partners GP, LLC
CIK 0001694886
$601K5K0.14%Q3 2026
02
VESTOR CAPITAL, LLC
CIK 0001132699
$337K7K0.02%Q3 2026