DOSSIER · 13F Holders · Q1 2026BellwetherCompounder
SST

SYSTEM1 INC

26 institutions still hold SYSTEM1 INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 87200P208·26 13F holders·last filed Mar 31, 2026
Market cap
8.9%
vs prior quarter
13F value held
$3M
68.0% inst. owned
of float
Holders
26
-56 QoQ
filers reporting
Activity
+8 / −82
+925 added · −707 reduced
this quarter
Concentration
42.31%
Cannae Holdings, Inc. #1
top holder share
AI Holders Summary · Q1 2026

26 institutions reported SST in Q1 2026. Cannae Holdings, Inc. leads at 42.3% of the visible book. -56 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Cannae Holdings, Inc.
CIK 0001704720
$1M357K4.39%Q1 2026
02
BANK OF AMERICA CORP /DE/
CIK 0000070858
$487,787162K0.00%Q1 2026
03
Cerity Partners LLC
CIK 0001566475
$352,869117K0.00%Q1 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$112,13937K0.00%Q1 2026
05
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$98,50933K0.00%Q1 2026
06
BlackRock, Inc.
CIK 0002012383
$73,22624K0.00%Q1 2026
07
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$72,01324K0.00%Q1 2026
08
NINE MASTS CAPITAL Ltd
CIK 0001569356
$56,01519K0.01%Q1 2026
09
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$55,32618K0.00%Q1 2026
10
CITADEL ADVISORS LLC
CIK 0001423053
$50,01513K0.00%Q4 2025
11
STATE STREET CORP
CIK 0000093751
$34,73612K0.00%Q1 2026
12
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$27,6069K0.00%Q1 2026
13
Tower Research Capital LLC (TRC)
CIK 0001533421
$22,1437K0.00%Q1 2026
14
JPMORGAN CHASE & CO
CIK 0000019617
$18,4956K0.00%Q1 2026
15
UBS Group AG
CIK 0001610520
$3,9991K0.00%Q1 2026
16
Vanguard Global Advisers, LLC
CIK 0001811242· Index
$1,9936600.00%Q1 2026
17
Farther Finance Advisors, LLC
CIK 0001992825
$7831500.00%Q1 2026
18
GROUP ONE TRADING LLC
CIK 0000932540
$6732230.00%Q1 2026
19
CWM, LLC
CIK 0001535847
$3441140.00%Q1 2026
20
Strategic Wealth Partners, Ltd.
CIK 0001720777
$3021000.00%Q1 2026
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