System1 Ownership | Who Owns System1?
System1 Ownership Summary
System1 is owned by 8.23% institutional investors, 77.93% insiders, and 13.85% retail investors. Cerity partners is the largest institutional shareholder, holding 1.44% of SST shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.31% of its assets in System1 shares.
SST Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | System1 | 8.23% | 77.93% | 13.85% |
| Sector | Technology Stocks | 36.05% | 15.15% | 48.81% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Cerity partners | 116.84K | 1.44% | $352.87K |
| Vanguard group | 46.93K | 0.58% | $183.98K |
| Millennium management | 32.62K | 0.40% | $98.51K |
| Blackrock funding, inc. /de | 24.25K | 0.30% | $73.23K |
| Geode capital management | 23.84K | 0.29% | $72.01K |
| Nine masts capital | 18.55K | 0.23% | $56.02K |
| Renaissance | 18.32K | 0.23% | $55.33K |
| State street | 11.50K | 0.14% | $34.74K |
| Vanguard fiduciary trust | 9.14K | 0.11% | $27.61K |
| Goldman sachs group | 65.45K | 0.09% | $58.80K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Nine masts capital | 18.55K | 0.01% | $56.02K |
| Tower research capital llc (trc) | 7.33K | 0.00% | $22.14K |
| Cerity partners | 116.84K | 0.00% | $352.87K |
| Renaissance | 18.32K | 0.00% | $55.33K |
| Prudential financial | - | - | - |
| Legal & general group | - | - | - |
| Geode capital management | 23.84K | - | $72.01K |
| Evoke wealth | - | - | - |
| Marshall wace, llp | - | - | - |
| Clear street markets | - | - | - |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Nine masts capital | 18.55K | 0.01% | 18.55K |
| Goldman sachs group | 65.45K | - | 17.87K |
| Geode capital management | 23.84K | - | 9.48K |
| Vanguard fiduciary trust | 9.14K | - | 9.14K |
| Tower research capital llc (trc) | 7.33K | 0.00% | 6.34K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Cannae | - | - | -356.80K |
| Northern trust | - | - | -229.13K |
| Ancora advisors | - | - | -194.33K |
| Deutsche bank ag\ | - | - | -146.11K |
| Pacific ridge capital partners | - | - | -138.63K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Nine masts capital | 18.55K | 0.01% | 18.55K | $56.02K |
| Vanguard fiduciary trust | 9.14K | - | 9.14K | $27.61K |
| Vanguard global advisers | 660.00 | - | 660.00 | $1.99K |
Sold Out
| Holder | Change |
|---|---|
| Dupont capital management | -1.00 |
| Eversource wealth advisors | -11.00 |
| Russell investments group | -17.00 |
| Sterling capital management | -24.00 |
| Citigroup | -38.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 23 | 4.55% | 665,364 | -18.41% | 8 | 8.02% | 11 | 175.00% | 3 | -75.00% |
| Dec 31, 2025 | 11 | -63.33% | 560,602 | -82.47% | 6 | 0.42% | 1 | -88.89% | 7 | -46.15% |
| Sep 30, 2025 | 14 | -57.58% | 2,905,067 | -10.36% | 37 | 2.16% | 3 | -57.14% | 6 | -76.00% |
| Jun 30, 2025 | 33 | -38.89% | 3,242,283 | -90.63% | 41 | 2.12% | 7 | -66.67% | 25 | 78.57% |
| Mar 31, 2025 | 1 | -98.44% | 34,882 | -99.90% | - | 0.00% | 1 | -96.55% | - | -100.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 107.51K | 1.31% | 90.44K |
| iShares Russell 2000 ETF | 739.62K | 0.98% | - |
| iShares Russell 2000 Growth ETF | 267.67K | 0.36% | - |
| Fidelity Small Cap Index | 235.61K | 0.29% | - |
| Pacific Ridge Capital Partners Sm Cp Val | 177.01K | 0.25% | 54.81K |
| Vanguard Institutional Extnd Mkt Idx Tr | 20.06K | 0.24% | - |
| iShares Micro-Cap ETF | 17.90K | 0.22% | - |
| Xtrackers Russell 2000 ETF 1C | 146.11K | 0.19% | - |
| Vanguard Russell 2000 ETF | 117.57K | 0.16% | 1.06K |
| T. Rowe Price U.S. Equities Tr | 11.73K | 0.14% | 2.73K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Apr 15, 2026 | Kidambi Tridivesh | Chief Financial Officer | Buy | $80.73K |
| Aug 22, 2025 | CEE Holdings Trust | - | Buy | $80.63K |
| Aug 21, 2025 | CEE Holdings Trust | - | Buy | $86.83K |
| Aug 20, 2025 | CEE Holdings Trust | - | Buy | $78.65K |
| Aug 19, 2025 | CEE Holdings Trust | - | Buy | $41.50K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | - |
| 2026 Q2 | 1 | - |
| 2026 Q1 | - | - |
| 2025 Q4 | - | - |
| 2025 Q3 | 4 | - |
SST Ownership FAQ
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