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
Q1 2025 vs. Q4 2024
How the institutions holding System1, Inc. changed between Q4 2024 and Q1 2025.
All holders in Q1 2025All holders in Q4 2024
| Measure | Q4 2024 | Of which not filed for Q1 2025 | Q1 2025 | Change |
|---|---|---|---|---|
| Holders | 59 | 1 | 55 | −3 |
| Shares | 35.2M | 50.3K | 34.6M | −573.0K (−1.6%) |
| Value | $31.6M | $45.2K | $13.2M | −$18.4M (−58.2%) |
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (4)
Institutions that held System1, Inc. at the end of Q1 2025 but not at the end of Q4 2024.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Gsa Capital Partners LLP | 118,709 | $45.0K | 0.00% |
| Nuveen, LLC | 50,329 | $19.2K | 0.00% |
| Group One Trading, L.P. | 20,986 | $8.00K | 0.00% |
| EverSource Wealth Advisors, LLC | 130 | $50 | 0.00% |
Sold out (7)
Institutions that held System1, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.
| Institution | Shares, Q4 2024 | Value, Q4 2024 |
|---|---|---|
| Ancora Advisors, LLC | 194,330 | $174.6K |
| Pacific Ridge Capital Partners, LLC | 138,627 | $124.5K |
| Millennium Management LLC | 112,853 | $101.4K |
| Two Sigma Securities, LLC | 72,880 | $65.5K |
| Engineers Gate Manager LP | 51,207 | $46.0K |
| Prudential Financial Inc | 49,910 | $44.8K |
| Citadel Advisors LLC | 17,305 | $15.5K |
Not filed for Q1 2025 yet (1)
Institutions that held System1, Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2024 | Value, Q4 2024 |
|---|---|---|
| Nuveen Asset Management, LLC | 50,329 | $45.2K |