13F Insight
DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
KOOL

SPINNAKER ETF SERIES

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

CUSIP 84858T855·3 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 6.9%
vs prior quarter
13F value held
$50M
71.0% inst. owned
of float
Holders
3
-8 QoQ
filers reporting
Activity
+12 / −91
+1,000 added · −815 reduced
this quarter
Concentration
99.63%
Split Rock Private Trading & Wealth Management, LLC #1
top holder share
AI Holders Summary · Q1 2026

3 institutions reported KOOL in Q1 2026. Split Rock Private Trading & Wealth Management, LLC leads at 99.6% of the visible book. -8 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Split Rock Private Trading & Wealth Management, LLC
CIK 0002095884
$50M3.8M38.39%Q1 202602
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$182,61014K0.00%Q1 202603
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025