HolderBook

SYSTEM1 INC (SST)

Institutional ownership reported to the SEC as of Q2 2026, across 19 quarters.

21
Reporting holders
$1.4M
Reported value
0.0%
Held as options
-3
Holder change

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
BANK OF AMERICA CORP /DE/$373.1K161,5130.00%5qHELD
VANGUARD CAPITAL MANAGEMENT LLC$294.7K127,5760.00%2q+243.6%+$208.9K
Cerity Partners LLC$269.9K116,8440.00%5qHELD
Crescent Grove Advisors, LLC$174.5K75,5450.01%newNEW
BlackRock, Inc.$100.1K43,3530.00%5q+78.8%+$44.1K
MORGAN STANLEY$30.3K13,1340.00%newNEW
GEODE CAPITAL MANAGEMENT, LLC$28.9K12,5190.00%5q-47.5%-$26.2K
Leonteq Securities AG$28.9K12,5000.00%newNEW
STATE STREET CORP$26.6K11,5020.00%5qHELD
VANGUARD FIDUCIARY TRUST CO$21.1K9,1410.00%2qHELD
ROYAL BANK OF CANADA$3.0K1,3140.00%newNEW
UBS Group AG$1.4K6180.00%5q-53.3%-$1.6K
JONES FINANCIAL COMPANIES LLLP$9193660.00%newNEW
BNP PARIBAS FINANCIAL MARKETS$199860.00%5qHELD
SBI Securities Co., Ltd.$139600.00%5qHELD
JPMORGAN CHASE & CO$102420.00%5q-99.3%-$14.2K
OSAIC HOLDINGS, INC.$80350.00%5qHELD
GROUP ONE TRADING LLC$76330.00%5q-85.2%
MERCER GLOBAL ADVISORS INC /ADV$37160.00%newNEW
PRICE T ROWE ASSOCIATES INC /MD/$2811,7310.00%newNEW
BARCLAYS PLC$2190.00%newNEW
SIGNATUREFD, LLC$210.00%newNEW

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202621$1.4M586,2078240.0%
Q1 202624$2.5M826,8834430.0%
Q4 202522$3.2M815,5210390.0%
Q3 202528$22.5M3,198,27935120.0%
Q2 202533$18.2M3,230,34133001.8%
Q1 202551$13.2M34,431,858212130.2%
Q4 202459$32.0M35,188,289618111.2%
Q3 202459$39.5M34,847,446614201.1%
Q2 202459$53.6M34,818,1011411161.2%
Q1 202444$70.9M35,521,474412141.8%
Q4 202349$81.3M34,698,22451995.3%
Q3 202348$43.3M34,306,859418104.2%
Q2 202345$40.4M7,248,3501715319.5%
Q1 202336$27.9M4,934,85277924.0%
Q4 202231$28.7M2,733,92439955.5%
Q3 202242$231.4M28,972,0541313621.2%
Q2 202243$239.2M27,685,8001971219.3%
Q1 202238$487.7M29,047,800410013.7%
Q4 20211$9.8M982,5891000.0%