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, Q4 2023
Institutional positions in System1, Inc. as of Dec 31, 2023. 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
- 49
- +1 vs. Q3 2023
- Shares held
- 34.6M
- +240.9K (+0.7%) vs. Q3 2023
- Total value
- $76.8M
- +$35.2M (+84.8%) vs. Q3 2023
- New holders
- 6
- 22 more added
- Sold out
- 5
- 11 more reduced
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding System1, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| DuPont Capital Management Corp | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 100 | $222 | 0.00% | +100 | New |
| West Branch Capital LLC | 115 | $256 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 700 | $1.55K | 0.00% | −400−36.4% | Reduced |
| Federated Hermes, Inc. | 734 | $1.63K | 0.00% | −642−46.7% | Reduced |
| CWM, LLC | 1,072 | $2.00K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,046 | $4.54K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,161 | $5.00K | 0.00% | −249−10.3% | Reduced |
| Legal & General Group Plc | 2,327 | $5.14K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 3,235 | $7.18K | 0.00% | +2,285+240.5% | Added |
| Tower Research Capital LLC (TRC) | 3,909 | $8.68K | 0.00% | −4,617−54.2% | Reduced |
| Citigroup Inc | 4,813 | $10.7K | 0.00% | +4,797+29,981.3% | Added |
| California State Teachers Retirement System | 5,386 | $12.0K | 0.00% | −1,835−25.4% | Reduced |
| Cutler Group LP | 6,800 | $15.0K | 0.00% | +300+4.6% | Added |
| FMR LLC | 8,559 | $19.0K | 0.00% | −84−1.0% | Reduced |
| Wells Fargo & Company | 10,019 | $22.2K | 0.00% | +1,985+24.7% | Added |
| Wexford Capital LP | 10,750 | $23.9K | 0.01% | +10,750 | New |
| Invesco Ltd. | 11,839 | $26.3K | 0.00% | +11,839 | New |
| Sea Otter Advisors LLC | 12,500 | $27.8K | 0.03% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,739 | $28.3K | 0.00% | −9,345−42.3% | Reduced |
| Royal Bank of Canada | 13,589 | $30.0K | 0.00% | +4,938+57.1% | Added |
| SEI Investments Co | 16,217 | $36.0K | 0.00% | 00.0% | Unchanged |
| American International Group, Inc. | 16,265 | $36.1K | 0.00% | −66−0.4% | Reduced |
| SG Americas Securities, LLC | 17,947 | $40.0K | 0.00% | +1,882+11.7% | Added |
| Price T Rowe Associates Inc | 17,596 | $40.0K | 0.00% | +3,244+22.6% | Added |
| Arbor Trust Wealth Advisors, LLC | 20,950 | $46.5K | 0.03% | +10,000+91.3% | Added |
| New York State Common Retirement Fund | 22,489 | $49.9K | 0.00% | +72+0.3% | Added |
| Goldman Sachs Group Inc | 24,041 | $53.4K | 0.00% | −222−0.9% | Reduced |
| GTS Securities LLC | 25,215 | $56.0K | 0.00% | +25,215 | New |
| Belvedere Trading LLC | 25,767 | $57.2K | 0.00% | +25,767 | New |
| Rhumbline Advisers | 28,649 | $63.6K | 0.00% | +1,198+4.4% | Added |
| Jane Street Group, LLC | 29,097 | $64.6K | 0.00% | +16,388+128.9% | Added |
| JPMorgan Chase & Co | 31,872 | $70.8K | 0.00% | +10,299+47.7% | Added |
| UBS Group AG | 35,934 | $79.8K | 0.00% | +17,695+97.0% | Added |
| Nuveen Asset Management, LLC | 50,329 | $111.7K | 0.00% | +16,217+47.5% | Added |
| Barclays PLC | 50,934 | $113.1K | 0.00% | +39,114+330.9% | Added |
| Group One Trading, L.P. | 65,872 | $146.2K | 0.00% | +65,872 | New |
| Bank of New York Mellon Corp | 74,138 | $164.6K | 0.00% | −20,688−21.8% | Reduced |
| Cerity Partners LLC | 118,533 | $263.1K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 123,065 | $273.2K | 0.00% | +68,546+125.7% | Added |
| Charles Schwab Investment Management Inc | 209,246 | $464.5K | 0.00% | +35,183+20.2% | Added |
| Pacific Ridge Capital Partners, LLC | 233,789 | $519.0K | 0.11% | 00.0% | Unchanged |
| Northern Trust Corp | 276,233 | $613.2K | 0.00% | +27,881+11.2% | Added |
| State Street Corp | 388,438 | $862.3K | 0.00% | +7,300+1.9% | Added |
| Geode Capital Management, LLC | 499,887 | $1.11M | 0.00% | +7,672+1.6% | Added |
| Vanguard Group Inc | 1,258,690 | $2.79M | 0.00% | +10,636+0.9% | Added |
| Bank of America Corp | 1,703,023 | $3.78M | 0.00% | −5,434−0.3% | Reduced |
| BlackRock Inc. | 2,091,659 | $4.64M | 0.00% | +158,516+8.2% | Added |
| Cannae Holdings, Inc. | 27,012,794 | $60.0M | 3.48% | 00.0% | Unchanged |
| Brighton Jones LLC | 0 | $0 | 0.00% | −218,104−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −60,500−100.0% | Sold out |
| CSS LLC | 0 | $0 | 0.00% | −11,784−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −10,416−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −400−100.0% | Sold out |