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
Q2 2025 vs. Q1 2025
How the institutions holding System1, Inc. changed between Q1 2025 and Q2 2025.
All holders in Q2 2025All holders in Q1 2025
| Measure | Q1 2025 | Q2 2025 | Change |
|---|---|---|---|
| Holders | 55 | 36 | −19 |
| SharesConverted for a 1-for-10 split | 3.46M | 3.24M | −217.3K (−6.3%) |
| Value | $13.2M | $17.9M | +$4.74M (+35.9%) |
New holders (7)
Institutions that held System1, Inc. at the end of Q2 2025 but not at the end of Q1 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Millennium Management LLC | 42,778 | $236.6K | 0.00% |
| HRT Financial LP | 11,870 | $65.0K | 0.00% |
| Clear Street Markets LLC | 1,849 | $10.2K | 0.00% |
| Farther Finance Advisors, LLC | 150 | $830 | 0.00% |
| Strategic Wealth Partners, Ltd. | 100 | $553 | 0.00% |
| GAMMA Investing LLC | 36 | $199 | 0.00% |
| Essential Partners LLC | 1 | $6 | 0.00% |
Sold out (26)
Institutions that held System1, Inc. at the end of Q1 2025 and filed for Q2 2025 without it.