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SST · System1, Inc. · Holdings

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$3.84 -0.57 (-12.93%) At close · Sep 10
Market Cap
$46.25M
Shares
10.49M

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.

Holders: 21
Total Value: $1,381,186
Total Shares: 597,922

Institutional Ownership Trend

19 quarters

Holder Concentration

Across 21 13F filers · Δ vs Mar 31, 2026
Top Holder
27.0%
Sep 2023 → Jun 2026 · range 27.0% – 84.5%
−16.1 pts
Top 5
87.8%
Sep 2023 → Jun 2026 · range 85.2% – 95.8%
+2.5 pts
Top 10
98.0%
Sep 2023 → Jun 2026 · range 95.3% – 99.1%
+1.1 pts
HHI
1,803
Sep 2023 → Jun 2026 · range 1,803 – 7,178
Moderately concentrated−707

Quarterly Activity

vs Mar 31, 2026
New
7
Increased
3
Decreased
5
Sold Out
11
Unchanged
6
Holder count: -4
Institutional value: -44.7%
Shares held: -27.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 21 of 21
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1805833 CUSIP 87200P208 13F (30d) 15 filings 15 filers Visit website