DOSSIER · 13F Holders · Q1 2026BellwetherCompounder
SASS

RBB FUND TRUST

2 institutions still hold RBB FUND TRUST as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 75526L613·2 13F holders·last filed Mar 31, 2026
Market cap
2.1%
vs prior quarter
13F value held
$67M
56.0% inst. owned
of float
Holders
2
-108 QoQ
filers reporting
Activity
+37 / −56
+944 added · −870 reduced
this quarter
Concentration
99.32%
M.D. Sass, LLC #1
top holder share
AI Holders Summary · Q1 2026

2 institutions reported SASS in Q1 2026. M.D. Sass, LLC leads at 99.3% of the visible book. -108 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
M.D. Sass, LLC
CIK 0000922940
$67M2.9M5.07%Q1 2026
02
GTS SECURITIES LLC
CIK 0001452765· Market maker
$460,49720K0.02%Q1 2026