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, Q1 2025
Institutional positions in System1, Inc. as of Mar 31, 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
- 55
- −3 vs. Q4 2024
- Shares held
- 34.6M
- −573.0K (−1.6%) vs. Q4 2024
- Total value
- $13.2M
- −$18.4M (−58.2%) vs. Q4 2024
- New holders
- 4
- 18 more added
- Sold out
- 7
- 12 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding System1, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Amalgamated Bank | 835 | $0 | 0.00% | 00.0% | Unchanged |
| DuPont Capital Management Corp | 1 | $0 | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 24 | $9 | 0.00% | 00.0% | Unchanged |
| West Branch Capital LLC | 115 | $44 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 130 | $50 | 0.00% | +130 | New |
| Russell Investments Group, Ltd. | 175 | $67 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 604 | $230 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 700 | $266 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 700 | $267 | 0.00% | +119+20.5% | Added |
| California State Teachers Retirement System | 1,697 | $647 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,998 | $762 | 0.00% | −1,103−35.6% | Reduced |
| Ameritas Investment Partners, Inc. | 2,046 | $780 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 2,900 | $1.00K | 0.00% | +1,190+69.6% | Added |
| Legal & General Group Plc | 3,041 | $1.16K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 6,249 | $2.00K | 0.00% | +3,120+99.7% | Added |
| Invesco Ltd. | 11,171 | $4.26K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 11,504 | $4.39K | 0.00% | +439+4.0% | Added |
| Corebridge Financial, Inc. | 11,795 | $4.50K | 0.00% | +22+0.2% | Added |
| Aire Advisors, LLC | 12,000 | $4.58K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 13,219 | $5.04K | 0.00% | +11,913+912.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 14,035 | $5.35K | 0.00% | +624+4.7% | Added |
| Evoke Wealth, LLC | 15,047 | $5.74K | 0.00% | +47+0.3% | Added |
| SEI Investments Co | 16,217 | $6.18K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 16,800 | $6.40K | 0.00% | −12,929−43.5% | Reduced |
| Tower Research Capital LLC (TRC) | 17,268 | $6.58K | 0.00% | +6,504+60.4% | Added |
| Citigroup Inc | 17,843 | $6.80K | 0.00% | −1,098−5.8% | Reduced |
| Price T Rowe Associates Inc | 17,596 | $7.00K | 0.00% | 00.0% | Unchanged |
| Arbor Trust Wealth Advisors, LLC | 20,950 | $7.99K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 20,986 | $8.00K | 0.00% | +20,986 | New |
| New York State Common Retirement Fund | 22,489 | $8.57K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 23,451 | $9.00K | 0.00% | +12,634+116.8% | Added |
| AQR Capital Management LLC | 28,016 | $10.7K | 0.00% | +9,743+53.3% | Added |
| Goldman Sachs Group Inc | 28,256 | $10.8K | 0.00% | −37,198−56.8% | Reduced |
| XTX Topco Ltd | 29,615 | $11.3K | 0.00% | +16,410+124.3% | Added |
| Barclays PLC | 31,796 | $12.1K | 0.00% | −11,617−26.8% | Reduced |
| Rhumbline Advisers | 33,965 | $12.9K | 0.00% | −23,220−40.6% | Reduced |
| Jane Street Group, LLC | 34,882 | $13.3K | 0.00% | +21,845+167.6% | Added |
| JPMorgan Chase & Co | 38,437 | $14.7K | 0.00% | −50,107−56.6% | Reduced |
| Susquehanna International Group, LLP | 40,323 | $15.4K | 0.00% | +22,246+123.1% | Added |
| Morgan Stanley | 47,897 | $18.3K | 0.00% | −20,388−29.9% | Reduced |
| Nuveen, LLC | 50,329 | $19.2K | 0.00% | +50,329 | New |
| Bank of New York Mellon Corp | 50,368 | $19.2K | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 54,967 | $21.0K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 76,300 | $29.1K | 0.00% | −80,000−51.2% | Reduced |
| Renaissance Technologies LLC | 112,800 | $43.0K | 0.00% | +17,800+18.7% | Added |
| Gsa Capital Partners LLP | 118,709 | $45.0K | 0.00% | +118,709 | New |
| Deutsche Bank AG | 146,110 | $55.5K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 229,125 | $87.4K | 0.00% | +49,664+27.7% | Added |
| State Street Corp | 405,076 | $154.5K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 474,891 | $181.1K | 0.00% | +1,385+0.3% | Added |
| Vanguard Group Inc | 628,758 | $239.6K | 0.00% | −16,103−2.5% | Reduced |
| Cerity Partners LLC | 1,092,083 | $416.4K | 0.00% | +2900.0% | Added |
| Bank of America Corp | 1,650,105 | $628.7K | 0.00% | −19,197−1.2% | Reduced |
| BlackRock, Inc. | 1,897,235 | $723.4K | 0.00% | −29,057−1.5% | Reduced |
| Cannae Holdings, Inc. | 27,012,794 | $10.3M | 1.13% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −194,330−100.0% | Sold out |
| Pacific Ridge Capital Partners, LLC | 0 | $0 | 0.00% | −138,627−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −112,853−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −72,880−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −51,207−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −49,910−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −17,305−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |