DOSSIER · 13F Holders · Q2 2026

UNITIL CORP

2 institutions still hold UNITIL CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 913259907·2 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$16K
visible holders
Holders
2
filers reporting
Concentration
100.00%
SIMPLEX TRADING, LLC #1
top holder share
AI Holders Summary · Q2 2026

2 institutions reported UNITIL CORP in Q2 2026. SIMPLEX TRADING, LLC leads at 100.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SIMPLEX TRADING, LLC
CIK 0001488542
$16K3000.00%Q2 2026
02
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025