DOSSIER · 13F Holders · Q1 2026
TNUK

TORTOISE CAPITAL SERIES TRUS

3 institutions still hold TORTOISE CAPITAL SERIES TRUS as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 890930878·3 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$526K
visible holders
Holders
3
filers reporting
Concentration
94.89%
GTS SECURITIES LLC #1
top holder share
AI Holders Summary · Q1 2026

3 institutions reported TNUK in Q1 2026. GTS SECURITIES LLC leads at 94.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GTS SECURITIES LLC
CIK 0001452765· Market maker
$499K20K0.02%Q1 2026
02
Strategic Investment Solutions, Inc. /IL
CIK 0001960144
$21K8240.00%Q2 2026
03
UBS Group AG
CIK 0001610520
$6K2500.00%Q1 2026