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SST · System1, Inc. · Holdings

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$2.09 -0.06 (-2.79%) At close · Oct 23
Rebalance outlook locked
Going-concern doubt — flagged Aug 5, 2026

Substantial doubt about the company's ability to continue as a going concern.

“Management determined, as a result of this evaluation, that our current cash and cash equivalents and net working capital position raise substantial doubt about our ability to continue as a going concern for the twelve month period following the date of this filing. Management has initiated cost-reduction programs consisting of reduction in force and reducing activities for businesses, which immediately reduced our cash burn rate. Management cannot conclude as of the date of this filing that its plans are probable of mitigating the conditions and events that raise substantial doubt. As a result, management has concluded that substantial doubt exists about our ability to continue as a going concern.”
View the 10-Q filed Aug 5, 2026
Market Cap
$21.92M
Shares
10.49M
Volume · Oct 23 29.07K Avg daily vol (3M) 544.25K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of SST: 13F, 13D and 13G, insiders and funds →
Recent SEC filings are still being reconciled. Holder totals and changes may be incomplete until processing catches up.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 20
Total Value: $2,193,797
Total Shares: 899,133

Institutional Ownership Trend

20 quarters

Holder Concentration

Across 21 13F filers
Top Holder
27.0%
Sep 2023 → Jun 2026 · range 27.0% – 84.5%
of institutional value
Top 5
87.8%
Sep 2023 → Jun 2026 · range 85.2% – 95.8%
of institutional value
Top 10
98.0%
Sep 2023 → Jun 2026 · range 95.3% – 99.1%
of institutional value
HHI
1,803
Sep 2023 → Jun 2026 · range 1,803 – 7,178
Moderately concentrated

Who Holds SST

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 21 filers, like-for-like change -27.7%; actively managed books +4.5%; index-like books +105.2%.

Holder type Share Filers Change
Registered adviser 57.6% 6 +49.6%
Bank 29.3% 6 -2.9%
Broker-dealer 0.0% 1 -85.2%
Non-US 0.0% 2 0.0%
Holding company 9.5% 3 +132.8%
Exempt adviser 0.0% 0 -100.0%
Adviser 0.0% 0 —
Insurer 0.0% 0 —
Benefit plan 0.0% 0 —
Unknown 3.7% 3 -94.1%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

21 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
0
0.000% of filers hold it in their top 10
Mar 31, 2026: 1
Holders above 5%
0
median weight 0.000%
Mar 31, 2026: 0
Crowding
—
the issuer has more than one class of common stock, so its count is the total across classes
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
the issuer has more than one class of common stock, so its count is the total across classes
Top 10 holders
98.0%
of 13F shares, Herfindahl 0.180
Active holders
+4.5%
like-for-like share change of active filers
5% stakes on record
5
4 13D, 1 13G (0 institutional, 0 passive, 1 exempt)
How long holders have held it value-weighted 9.3 quarters
Under 1 year 41.8% 1 to 3 years 7.28% 3 years or more 50.9% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$13.43
estimated per share
Mar 31, 2026: $100.85
Quarter-end price
$2.31
implied by 13F values
Estimated gain or loss
-82.8%
price against the estimated cost
Estimated at a loss
100.0%
of costed 13F value

Estimated cost covers 30.5% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shareholder Targets

13F filers that own its peers but not SST, quarter ended Jun 30, 2026

SST has no holder-overlap peers, so these filers hold the largest Industrials stocks: SPCX, CAT, GE, GEV, RTX, UNP, ETN, BA, DE, PH, VRT, HWM, PWR, TT, LMT, CMI, GD, JCI, WM, TDG. 6,169 filers in all.

# Filer In peers
1 FMR LLC Holding company, Diversified active $144,746,930,054 20 held
2 Alphabet Inc. Unknown, Concentrated $94,176,237,970 1 held
3 Valor Management LLC Adviser, Concentrated $86,013,406,595 1 held
4 VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active $83,375,688,063 20 held
5 Capital World Investors Adviser, Diversified active $49,191,955,588 15 held
6 VY Capital Management Co. Ltd. Exempt adviser, Concentrated $46,441,712,890 1 held
7 Capital Research Global Investors Adviser, Diversified active $42,021,126,393 13 held
8 Fisher Asset Management, LLC Adviser, Diversified active $34,223,376,115 20 held
9 NORTHERN TRUST CORP Bank, Index-like $34,206,005,653 20 held
10 NORGES BANK Non-US, Index-like $33,558,857,825 16 held

Fund Ownership of SST by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 1.53% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 0.15% 15,382
Index ETFs 1.39% 145,479
Active ETFs 0.00% 0
Active funds 0.08% 8,323
Unclassified 0.00% 0
All registered funds 1.61% 169,184
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 5 Bank 6 Broker-dealer 1 Non-US 2 Holding company 3 Unknown 3
Showing 20 of 20
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Crescent Grove Advisors, LLC $987,050 44.99% 376,737
BANK OF AMERICA CORP /DE/ $373,095 17.01% 161,513
VANGUARD CAPITAL MANAGEMENT LLC $294,700 13.43% 127,576
Cerity Partners LLC $269,909 12.30% 116,844
BlackRock, Inc. $100,143 4.56% 43,353
MORGAN STANLEY $30,339 1.38% 13,134
GEODE CAPITAL MANAGEMENT, LLC $28,918 1.32% 12,519
Leonteq Securities AG $28,875 1.32% 12,500
PRICE T ROWE ASSOCIATES INC /MD/ $27,098 1.24% 11,731
STATE STREET CORP $26,569 1.21% 11,502
VANGUARD FIDUCIARY TRUST CO $21,115 0.96% 9,141
ROYAL BANK OF CANADA $3,034 0.14% 1,314
UBS Group AG $1,427 0.07% 618
JONES FINANCIAL COMPANIES LLLP $845 0.04% 366
SBI Securities Co., Ltd. $209 0.01% 80
BNP PARIBAS ARBITRAGE, SA $198 0.01% 86
JPMORGAN CHASE & CO $97 0.00% 42
OSAIC HOLDINGS, INC. $80 0.00% 35
GROUP ONE TRADING LLC $76 0.00% 33
BARCLAYS PLC $20 0.00% 9
Key facts CIK 1805833 CUSIP 87200P208 13F (30d) 2 filings 2 filers Visit website Investor relations