System1, Inc.
SST- Exchange
- NYSE
- Industry
- Services-Computer Programming, Data Processing, Etc.
- SEC CIK
- 0001805833
No open-market purchases or sales by System1, Inc. insiders were filed in the last 90 days; 21 institutions reported holding it in 13F filings for Q2 2026, worth $1.38M in total; no superinvestor holds it.
Other share classesSSTPW
13F holders, Q2 2025
Institutional positions in System1, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 36
- −19 vs. Q1 2025
- Shares held
- 3.24M
- −217.3K (−6.3%) vs. Q1 2025Converted for a 1-for-10 split
- Total value
- $17.9M
- +$4.74M (+35.9%) vs. Q1 2025
- New holders
- 7
- 9 more added
- Sold out
- 26
- 18 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 21 | $1.38M |
| Q1 2026 | 25 | $2.50M |
| Q4 2025 | 24 | $3.20M |
| Q3 2025 | 30 | $22.5M |
| Q2 2025 | 36 | $17.9M |
| Q1 2025 | 55 | $13.2M |
| Q4 2024 | 59 | $31.6M |
| Q3 2024 | 60 | $39.1M |
| Q2 2024 | 60 | $53.0M |
| Q1 2024 | 47 | $69.4M |
| Q4 2023 | 49 | $76.8M |
| Q3 2023 | 48 | $41.6M |
| Q2 2023 | 44 | $154.8M |
| Q1 2023 | 34 | $138.1M |
| Q4 2022 | 30 | $133.5M |
| Q3 2022 | 38 | $182.2M |
| Q2 2022 | 37 | $193.0M |
| Q1 2022 | 31 | $421.1M |
| Q4 2021 | 1 | $9.79M |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding System1, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cannae Holdings, Inc. | 2,701,279 | $14.9M | 1.82% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Bank of America Corp | 174,289 | $963.8K | 0.00% | +9,279+5.6% | AddedConverted for a 1-for-10 split |
| Cerity Partners LLC | 109,286 | $604.4K | 0.00% | 00.0% | UnchangedConverted for a 1-for-10 split |
| Vanguard Group Inc | 47,306 | $261.6K | 0.00% | −15,570−24.8% | ReducedConverted for a 1-for-10 split |
| Millennium Management LLC | 42,778 | $236.6K | 0.00% | +42,778 | New |
| BlackRock, Inc. | 39,122 | $216.3K | 0.00% | −150,602−79.4% | ReducedConverted for a 1-for-10 split |
| Jane Street Group, LLC | 31,681 | $175.2K | 0.00% | +28,193+808.2% | AddedConverted for a 1-for-10 split |
| Geode Capital Management, LLC | 21,530 | $119.1K | 0.00% | −25,959−54.7% | ReducedConverted for a 1-for-10 split |
| Susquehanna International Group, LLP | 12,374 | $68.4K | 0.00% | +8,342+206.9% | AddedConverted for a 1-for-10 split |
| Renaissance Technologies LLC | 12,020 | $66.5K | 0.00% | +740+6.6% | AddedConverted for a 1-for-10 split |
| HRT Financial LP | 11,870 | $65.0K | 0.00% | +11,870 | New |
| State Street Corp | 11,502 | $63.6K | 0.00% | −29,006−71.6% | ReducedConverted for a 1-for-10 split |
| UBS Group AG | 10,649 | $58.9K | 0.00% | +8,969+533.9% | AddedConverted for a 1-for-10 split |
| BNP Paribas Arbitrage, SA | 4,511 | $24.9K | 0.00% | +4,311+2,157.8% | AddedConverted for a 1-for-10 split |
| Tower Research Capital LLC (TRC) | 2,580 | $14.3K | 0.00% | +853+49.4% | AddedConverted for a 1-for-10 split |
| Group One Trading, L.P. | 2,074 | $11.5K | 0.00% | −25−1.2% | ReducedConverted for a 1-for-10 split |
| FMR LLC | 1,923 | $10.6K | 0.00% | +601+45.5% | AddedConverted for a 1-for-10 split |
| Clear Street Markets LLC | 1,849 | $10.2K | 0.00% | +1,849 | New |
| Morgan Stanley | 1,359 | $7.52K | 0.00% | −3,431−71.6% | ReducedConverted for a 1-for-10 split |
| Wells Fargo & Company | 891 | $4.93K | 0.00% | −259−22.5% | ReducedConverted for a 1-for-10 split |
| Barclays PLC | 190 | $1.05K | 0.00% | −2,990−94.0% | ReducedConverted for a 1-for-10 split |
| Royal Bank of Canada | 251 | $1.00K | 0.00% | −374−59.8% | ReducedConverted for a 1-for-10 split |
| CWM, LLC | 238 | $1.00K | 0.00% | −52−17.9% | ReducedConverted for a 1-for-10 split |
| Farther Finance Advisors, LLC | 150 | $830 | 0.00% | +150 | New |
| JPMorgan Chase & Co | 141 | $779 | 0.00% | −3,703−96.3% | ReducedConverted for a 1-for-10 split |
| Strategic Wealth Partners, Ltd. | 100 | $553 | 0.00% | +100 | New |
| Nisa Investment Advisors, LLC | 64 | $354 | 0.00% | −6−8.6% | ReducedConverted for a 1-for-10 split |
| SBI Securities Co., Ltd. | 60 | $332 | 0.00% | −0−0.7% | ReducedConverted for a 1-for-10 split |
| Citigroup Inc | 37 | $205 | 0.00% | −1,747−97.9% | ReducedConverted for a 1-for-10 split |
| GAMMA Investing LLC | 36 | $199 | 0.00% | +36 | New |
| Advisor Group Holdings, Inc. | 35 | $193 | 0.00% | −35−50.0% | ReducedConverted for a 1-for-10 split |
| Russell Investments Group, Ltd. | 17 | $94 | 0.00% | −1−2.9% | ReducedConverted for a 1-for-10 split |
| EverSource Wealth Advisors, LLC | 11 | $61 | 0.00% | −2−15.4% | ReducedConverted for a 1-for-10 split |
| West Branch Capital LLC | 115 | $51 | 0.00% | +104+900.0% | AddedConverted for a 1-for-10 split |
| Rhumbline Advisers | 0 | $9 | 0.00% | −3,397−100.0% | ReducedConverted for a 1-for-10 split |
| Essential Partners LLC | 1 | $6 | 0.00% | +1 | New |
| Northern Trust Corp | 0 | $0 | 0.00% | −22,913−100.0% | Sold outConverted for a 1-for-10 split |
| Deutsche Bank AG | 0 | $0 | 0.00% | −14,611−100.0% | Sold outConverted for a 1-for-10 split |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −11,871−100.0% | Sold outConverted for a 1-for-10 split |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −7,630−100.0% | Sold outConverted for a 1-for-10 split |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −5,497−100.0% | Sold outConverted for a 1-for-10 split |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −5,037−100.0% | Sold outConverted for a 1-for-10 split |
| Nuveen, LLC | 0 | $0 | 0.00% | −5,033−100.0% | Sold outConverted for a 1-for-10 split |
| XTX Topco Ltd | 0 | $0 | 0.00% | −2,962−100.0% | Sold outConverted for a 1-for-10 split |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −2,826−100.0% | Sold outConverted for a 1-for-10 split |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −2,802−100.0% | Sold outConverted for a 1-for-10 split |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −2,345−100.0% | Sold outConverted for a 1-for-10 split |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −2,249−100.0% | Sold outConverted for a 1-for-10 split |
| Arbor Trust Wealth Advisors, LLC | 0 | $0 | 0.00% | −2,095−100.0% | Sold outConverted for a 1-for-10 split |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −1,760−100.0% | Sold outConverted for a 1-for-10 split |
| SEI Investments Co | 0 | $0 | 0.00% | −1,622−100.0% | Sold outConverted for a 1-for-10 split |
| Evoke Wealth, LLC | 0 | $0 | 0.00% | −1,505−100.0% | Sold outConverted for a 1-for-10 split |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −1,404−100.0% | Sold outConverted for a 1-for-10 split |
| Aire Advisors, LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold outConverted for a 1-for-10 split |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −1,180−100.0% | Sold outConverted for a 1-for-10 split |
| Invesco Ltd. | 0 | $0 | 0.00% | −1,117−100.0% | Sold outConverted for a 1-for-10 split |
| Legal & General Group Plc | 0 | $0 | 0.00% | −304−100.0% | Sold outConverted for a 1-for-10 split |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −205−100.0% | Sold outConverted for a 1-for-10 split |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −170−100.0% | Sold outConverted for a 1-for-10 split |
| Sterling Capital Management LLC | 0 | $0 | 0.00% | −2−100.0% | Sold outConverted for a 1-for-10 split |
| Amalgamated Bank | 0 | $0 | 0.00% | −84−100.0% | Sold outConverted for a 1-for-10 split |
| DuPont Capital Management Corp | 0 | $0 | 0.00% | −0−100.0% | Sold outConverted for a 1-for-10 split |