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 |
|---|---|---|---|---|---|
| Cannae Holdings, Inc. | 27,012,794 | $10.3M | 1.13% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,897,235 | $723.4K | 0.00% | −29,057−1.5% | Reduced |
| Bank of America Corp | 1,650,105 | $628.7K | 0.00% | −19,197−1.2% | Reduced |
| Cerity Partners LLC | 1,092,083 | $416.4K | 0.00% | +2900.0% | Added |
| Vanguard Group Inc | 628,758 | $239.6K | 0.00% | −16,103−2.5% | Reduced |
| Geode Capital Management, LLC | 474,891 | $181.1K | 0.00% | +1,385+0.3% | Added |
| State Street Corp | 405,076 | $154.5K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 229,125 | $87.4K | 0.00% | +49,664+27.7% | Added |
| Deutsche Bank AG | 146,110 | $55.5K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 118,709 | $45.0K | 0.00% | +118,709 | New |
| Renaissance Technologies LLC | 112,800 | $43.0K | 0.00% | +17,800+18.7% | Added |
| Bridgeway Capital Management, LLC | 76,300 | $29.1K | 0.00% | −80,000−51.2% | Reduced |
| Charles Schwab Investment Management Inc | 54,967 | $21.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 50,368 | $19.2K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 50,329 | $19.2K | 0.00% | +50,329 | New |
| Morgan Stanley | 47,897 | $18.3K | 0.00% | −20,388−29.9% | Reduced |
| Susquehanna International Group, LLP | 40,323 | $15.4K | 0.00% | +22,246+123.1% | Added |
| JPMorgan Chase & Co | 38,437 | $14.7K | 0.00% | −50,107−56.6% | Reduced |
| Jane Street Group, LLC | 34,882 | $13.3K | 0.00% | +21,845+167.6% | Added |
| Rhumbline Advisers | 33,965 | $12.9K | 0.00% | −23,220−40.6% | Reduced |
| Barclays PLC | 31,796 | $12.1K | 0.00% | −11,617−26.8% | Reduced |
| XTX Topco Ltd | 29,615 | $11.3K | 0.00% | +16,410+124.3% | Added |
| Goldman Sachs Group Inc | 28,256 | $10.8K | 0.00% | −37,198−56.8% | Reduced |
| AQR Capital Management LLC | 28,016 | $10.7K | 0.00% | +9,743+53.3% | Added |
| SG Americas Securities, LLC | 23,451 | $9.00K | 0.00% | +12,634+116.8% | Added |
| New York State Common Retirement Fund | 22,489 | $8.57K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 20,986 | $8.00K | 0.00% | +20,986 | New |
| Arbor Trust Wealth Advisors, LLC | 20,950 | $7.99K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 17,596 | $7.00K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 17,843 | $6.80K | 0.00% | −1,098−5.8% | Reduced |
| Tower Research Capital LLC (TRC) | 17,268 | $6.58K | 0.00% | +6,504+60.4% | Added |
| UBS Group AG | 16,800 | $6.40K | 0.00% | −12,929−43.5% | Reduced |
| SEI Investments Co | 16,217 | $6.18K | 0.00% | 00.0% | Unchanged |
| Evoke Wealth, LLC | 15,047 | $5.74K | 0.00% | +47+0.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 14,035 | $5.35K | 0.00% | +624+4.7% | Added |
| FMR LLC | 13,219 | $5.04K | 0.00% | +11,913+912.2% | Added |
| Aire Advisors, LLC | 12,000 | $4.58K | 0.00% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 11,795 | $4.50K | 0.00% | +22+0.2% | Added |
| Wells Fargo & Company | 11,504 | $4.39K | 0.00% | +439+4.0% | Added |
| Invesco Ltd. | 11,171 | $4.26K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 6,249 | $2.00K | 0.00% | +3,120+99.7% | Added |
| Legal & General Group Plc | 3,041 | $1.16K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 2,900 | $1.00K | 0.00% | +1,190+69.6% | Added |
| Ameritas Investment Partners, Inc. | 2,046 | $780 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 1,998 | $762 | 0.00% | −1,103−35.6% | Reduced |
| California State Teachers Retirement System | 1,697 | $647 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 700 | $267 | 0.00% | +119+20.5% | Added |
| Advisor Group Holdings, Inc. | 700 | $266 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 604 | $230 | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 175 | $67 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 130 | $50 | 0.00% | +130 | New |
| West Branch Capital LLC | 115 | $44 | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 24 | $9 | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 835 | $0 | 0.00% | 00.0% | Unchanged |
| DuPont Capital Management Corp | 1 | $0 | 0.00% | 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 |